Working part 2

2024/day-10/input

@@ -0,0 +1,54 @@
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+612148941212306782345091235410765227893258759651021298
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+210567569983543292314321569876301765438761078904589898
+325456478754330101223433478765432654349652987615678765

2024/day-10/solution-1.sh

@@ -0,0 +1,151 @@
+#!/usr/bin/env bash
+
+FILE=input
+MAP_WIDTH=$(( $( head -1 "$FILE" | wc -c ) -1 ))
+MAP_LEN=$( < "$FILE" wc -l )
+read -r -a MAP_ARRAY <<< "$( paste -s -d "" <"$FILE" | sed -E 's/(.)(.)/\1 \2 /g' )"
+printf "%s " "${MAP_ARRAY[@]}"
+printf "\n"
+
+MAP_SIZE=${#MAP_ARRAY[@]}
+for (( i=0; i<MAP_SIZE ; i++ ))
+do
+  if [[ ${MAP_ARRAY[i]} -eq 0 ]]
+  then
+    printf "Trailhead found at position %s\n" "$i"
+    TRAILHEADS+=( "$i" )
+  elif [[ ${MAP_ARRAY[i]} -eq 9 ]]
+  then
+    printf "Peak found at position %s\n" "$i"
+    PEAKS+=( "$i" )
+  fi
+done
+printf "%s " "${TRAILHEADS[@]}"
+printf "\n"
+printf "%s " "${PEAKS[@]}"
+printf "\n"
+
+get_nine () {
+
+  # Trails are explored areas
+  # Paths are areas to explore
+  GET_NUM=$1
+  DIRECTIONS=$2
+  TRAIL=$3
+  COMBINATIONS=()
+
+  # For each direction, get multiplication of prime number
+  # corresponding to each direction
+  # Modulus for valid directions is 0
+  # 2 : Up
+  # 3 : Down
+  # 7 : Left
+  # 13 : Right
+  if [[ $(( DIRECTIONS % 2 )) -eq 0 ]] 
+  then
+    INDEX=$(( TRAIL - MAP_WIDTH ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  if [[ $(( DIRECTIONS % 3 )) -eq 0 ]] 
+  then
+    INDEX=$(( TRAIL + MAP_WIDTH ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  if [[ $(( DIRECTIONS % 7 )) -eq 0 ]] 
+  then
+    INDEX=$(( TRAIL - 1 ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  if [[ $(( DIRECTIONS % 13 )) -eq 0 ]]
+  then
+    INDEX=$(( TRAIL + 1 ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  #PRINT1=$( printf "%s " "$TRAIL" )
+  #PRINT2=$( printf "%s " "${COMBINATIONS[@]}" )
+  #printf "trail: %s, Get: %s, combinations: %s \n" "$PRINT1" "$GET_NUM" "$PRINT2" >&2
+
+  # Check if the end has been reached
+  # or no matching neighbors
+  if [[ $GET_NUM -eq 9 ]] || [[ ${#COMBINATIONS[@]} -eq 0 ]]
+  then
+    # Exit recursion
+    printf "%s " "${COMBINATIONS[@]}"
+    #printf "%s " "${COMBINATIONS[@]}" >&2
+    return
+  fi
+
+  # Recurse
+  NEXT_NUM=$(( GET_NUM+=1 ))
+  read -r -a RESULTS <<< "$(
+    for INDEX in "${COMBINATIONS[@]}"
+    do
+      RESULT=$( 
+        get_nine \
+          "$NEXT_NUM" \
+          "$( get_valid_directions "$INDEX" )" \
+          "$INDEX" 
+      )
+      printf "%s " "$RESULT"
+    done
+  )"
+  printf "%s " "${RESULTS[@]}"
+  #printf "%s " "${RESULTS[@]}" >&2
+  #printf "\n" >&2
+}
+
+get_valid_directions () {
+
+  IDX=$1
+  NUM=1
+
+  # Basically check for bounds
+  # For each direction, get multiplication of prime number
+  # corresponding to each direction
+  # 2 : Up
+  # 3 : Down
+  # 7 : Left
+  # 13 : Right
+  if [[ $(( IDX / MAP_LEN )) -gt 0 ]]
+  then
+    (( NUM*=2 ))
+  fi
+  if [[ $(( IDX / MAP_LEN )) -le $MAP_LEN ]]
+  then
+    (( NUM*=3 ))
+  fi
+  if [[ $(( IDX % MAP_WIDTH )) -ne 0 ]]
+  then
+    (( NUM*=7 ))
+  fi
+  if [[ $(( IDX % MAP_WIDTH )) -ne $(( MAP_WIDTH - 1 )) ]]
+  then
+    (( NUM*=13 ))
+  fi
+
+  printf "%s" "$NUM"
+}
+
+ITER=9999
+TOTAL=0
+for TRAILHEAD in "${TRAILHEADS[@]}"
+do
+  read -r -a PEAKS <<< "$( get_nine "1" "$( get_valid_directions "$TRAILHEAD" )" "$TRAILHEAD" )"
+  COUNT=$( printf "%s " "${PEAKS[@]}" | grep -Eo '[0-9]*' | sort -u | wc -l )
+  (( TOTAL+=COUNT ))
+  (( ITER-- ))
+  if [[ $ITER -eq 0 ]] ;then break; fi
+done
+printf "%s\n" "$TOTAL"

2024/day-10/solution-2.sh

@@ -0,0 +1,144 @@
+#!/usr/bin/env bash
+
+FILE=input
+MAP_WIDTH=$(( $( head -1 "$FILE" | wc -c ) -1 ))
+MAP_LEN=$( < "$FILE" wc -l )
+read -r -a MAP_ARRAY <<< "$( paste -s -d "" <"$FILE" | sed -E 's/(.)(.)/\1 \2 /g' )"
+#printf "%s " "${MAP_ARRAY[@]}"
+#printf "\n"
+
+MAP_SIZE=${#MAP_ARRAY[@]}
+for (( i=0; i<MAP_SIZE ; i++ ))
+do
+  if [[ ${MAP_ARRAY[i]} -eq 0 ]]
+  then
+    #printf "Trailhead found at position %s\n" "$i"
+    TRAILHEADS+=( "$i" )
+  #elif [[ ${MAP_ARRAY[i]} -eq 9 ]]
+  #then
+  #  #printf "Peak found at position %s\n" "$i"
+  #  PEAKS+=( "$i" )
+  fi
+done
+#printf "%s " "${TRAILHEADS[@]}"
+#printf "\n"
+#printf "%s " "${PEAKS[@]}"
+#printf "\n"
+
+get_nine () {
+
+  # Trails are explored areas
+  # Paths are areas to explore
+  GET_NUM=$1
+  DIRECTIONS=$2
+  TRAIL=$3
+  COMBINATIONS=()
+
+  # For each direction, get multiplication of prime number
+  # corresponding to each direction
+  # Modulus for valid directions is 0
+  # 2 : Up
+  # 3 : Down
+  # 7 : Left
+  # 13 : Right
+  if [[ $(( DIRECTIONS % 2 )) -eq 0 ]] 
+  then
+    INDEX=$(( TRAIL - MAP_WIDTH ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  if [[ $(( DIRECTIONS % 3 )) -eq 0 ]] 
+  then
+    INDEX=$(( TRAIL + MAP_WIDTH ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  if [[ $(( DIRECTIONS % 7 )) -eq 0 ]] 
+  then
+    INDEX=$(( TRAIL - 1 ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  if [[ $(( DIRECTIONS % 13 )) -eq 0 ]]
+  then
+    INDEX=$(( TRAIL + 1 ))
+    if [[ ${MAP_ARRAY[INDEX]} -eq $GET_NUM ]]
+    then
+      COMBINATIONS+=( "$INDEX" )
+    fi
+  fi
+  #PRINT1=$( printf "%s " "$TRAIL" )
+  #PRINT2=$( printf "%s " "${COMBINATIONS[@]}" )
+  #printf "trail: %s, Get: %s, combinations: %s \n" "$PRINT1" "$GET_NUM" "$PRINT2" >&2
+
+  # Check if the end has been reached
+  # or no matching neighbors
+  if [[ $GET_NUM -eq 9 ]] || [[ ${#COMBINATIONS[@]} -eq 0 ]]
+  then
+    # Exit recursion
+    printf "%s " "${#COMBINATIONS[@]}"
+    #printf "%s " "${COMBINATIONS[@]}" >&2
+    return
+  fi
+
+  # Recurse
+  NEXT_NUM=$(( GET_NUM+=1 ))
+  TOTAL=0
+  for INDEX in "${COMBINATIONS[@]}"
+  do
+    COUNT=$( 
+      get_nine \
+        "$NEXT_NUM" \
+        "$( get_valid_directions "$INDEX" )" \
+        "$INDEX" 
+    )
+    (( TOTAL += COUNT ))
+  done
+  printf "%s" "$TOTAL"
+}
+
+get_valid_directions () {
+
+  IDX=$1
+  NUM=1
+
+  # Basically check for bounds
+  # For each direction, get multiplication of prime number
+  # corresponding to each direction
+  # 2 : Up
+  # 3 : Down
+  # 7 : Left
+  # 13 : Right
+  if [[ $(( IDX / MAP_LEN )) -gt 0 ]]
+  then
+    (( NUM*=2 ))
+  fi
+  if [[ $(( IDX / MAP_LEN )) -le $MAP_LEN ]]
+  then
+    (( NUM*=3 ))
+  fi
+  if [[ $(( IDX % MAP_WIDTH )) -ne 0 ]]
+  then
+    (( NUM*=7 ))
+  fi
+  if [[ $(( IDX % MAP_WIDTH )) -ne $(( MAP_WIDTH - 1 )) ]]
+  then
+    (( NUM*=13 ))
+  fi
+
+  printf "%s" "$NUM"
+}
+
+TOTAL=0
+for TRAILHEAD in "${TRAILHEADS[@]}"
+do
+  COUNT=$( get_nine "1" "$( get_valid_directions "$TRAILHEAD" )" "$TRAILHEAD" )
+  (( TOTAL+=COUNT ))
+done
+printf "%s\n" "$TOTAL"

2024/day-10/test-input-1

@@ -0,0 +1,8 @@
+89010123
+78121874
+87430965
+96549874
+45678903
+32019012
+01329801
+10456732

2024/day-10/test-result-1

@@ -0,0 +1 @@
+36

2024/day-11/input

@@ -0,0 +1 @@
+2 54 992917 5270417 2514 28561 0 990

2024/day-11/solution-1.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+
+read -r -a ROCK_LIST <<< "$( cat input )"
+BLINK_NUM=25
+
+ROCK_RETURN=()
+ROCK_NUM=0
+blink_rock () {
+
+  #printf "Blinking rock : %s\n" "$ROCK_NUM" >&2
+
+  # Remove leading zeroes
+  ROCK_NUM=$(( 10#$ROCK_NUM ))
+  # Rule 1 : Convert 0 to 1
+  if [[ $ROCK_NUM -eq 0 ]]
+  then
+    ROCK_RETURN=( 1 )
+    return
+  fi
+
+  # Rule 2 : If even number of digits, split half half
+  DIGIT_COUNT=${#ROCK_NUM}
+  if [[ $(( DIGIT_COUNT % 2 )) -eq 0 ]] && [[ $DIGIT_COUNT -gt 0 ]]
+  then
+    HALF=$(( DIGIT_COUNT / 2 ))
+    read -r -a ROCK_RETURN <<< "$( printf "%s %s " "${ROCK_NUM:0:$HALF}" "${ROCK_NUM:$HALF}" )"
+    return    
+  fi
+
+  # Rule 3 : Multiply by 2024
+  ROCK_RETURN=( $(( ROCK_NUM * 2024 )) )
+  return
+}
+
+ROCKS_TO_BLINK=()
+BLINKED_ROCKS=()
+# Updates the global array
+blink_rocks () {
+  
+  BLINKED_ROCKS=()
+  for ROCK in "${ROCKS_TO_BLINK[@]}"
+  do
+    ROCK_NUM=$ROCK
+    blink_rock
+    BLINKED_ROCKS+=( "${ROCK_RETURN[@]}" )
+  done
+  #printf "BLINKED_ROCKS: " >&2
+  #printf "%s " "${BLINKED_ROCKS[@]}" >&2
+  #printf "\n" >&2
+}
+
+FINAL_LIST=()
+for ROCK_NUM in "${ROCK_LIST[@]}"
+do
+  printf "Rock: %s\n" "$ROCK_NUM"
+  ROCKS_TO_BLINK=( "$ROCK_NUM" )
+  for (( i=0 ; i< BLINK_NUM; i++ ))
+  do
+    blink_rocks
+    ROCKS_TO_BLINK=( "${BLINKED_ROCKS[@]}" )
+  done
+  FINAL_LIST+=( "${BLINKED_ROCKS[@]}" )
+done
+printf "%s " "${FINAL_LIST[@]}"
+printf "\n"
+printf "%s\n" "${#FINAL_LIST[@]}"

2024/day-11/solution-2-2.sh

@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+
+FILE=input
+
+# Get max num size by squaring the largest number
+MAX_NUM_SIZE=0
+while read -r NUM
+do
+  if [[ ${#NUM} -gt $MAX_NUM_SIZE ]]
+  then
+    MAX_NUM_SIZE=${#NUM}
+  fi
+done <<< "$( < input tr " " "\n" )"
+(( MAX_NUM_SIZE*=2 ))
+
+# Just pre-compute a large number of digits
+{
+  # Rule 1
+  printf "0 1 \n"
+  
+  # Rule 2 : If even number of digits, split half half
+  for (( i=10 ; i<100; i+=1 ))
+  do
+    DIGIT_COUNT=${#i}
+    HALF=$(( DIGIT_COUNT / 2 ))
+    printf "%s %s %s \n" "$i" "$(( 10#${i:0:$HALF} ))" "$(( 10#${i:$HALF} ))"
+  done
+  for (( i=1000 ; i<10000; i+=1 ))
+  do
+    DIGIT_COUNT=${#i}
+    HALF=$(( DIGIT_COUNT / 2 ))
+    printf "%s %s %s \n" "$i" "$(( 10#${i:0:$HALF} ))" "$(( 10#${i:$HALF} ))"
+  done
+  
+  # Rule 3
+  for (( i=1; i<10; i+=1 ))
+  do
+    printf "%s %s \n" "$i" "$(( i * 2024 ))"
+  done 
+  for (( i=100; i<1000; i+=1 ))
+  do
+    printf "%s %s \n" "$i" "$(( i * 2024 ))"
+  done 
+} | sort -n > kv-cache
+printf "Cache built. KV size: %s \n" "$( wc -l kv-cache )" 
+
+# Load cache file
+declare -A KV_CACHE
+while read -r KEY VALUE
+do
+  KV_CACHE[$KEY]="$VALUE"
+done < kv-cache
+
+# Use this function for cache misses
+NUM=0
+get_num () {
+
+  NUM=$1
+
+  # Rule 1 : Convert 0 to 1
+  if [[ $NUM -eq 0 ]]
+  then
+    printf "%s 1 \n" "$OCCUR"
+    return
+  fi
+
+  # Rule 2 : If even number of digits, split half half
+  DIGIT_COUNT=${#NUM}
+  if [[ $(( DIGIT_COUNT % 2 )) -eq 0 ]]
+  then
+    HALF=$(( DIGIT_COUNT / 2 ))
+    printf "%s %s \n" "$OCCUR" "$(( 10#${NUM:0:$HALF} ))"
+    printf "%s %s \n" "$OCCUR" "$(( 10#${NUM:$HALF} ))"
+    return
+  fi
+
+  # Rule 3 : Multiply by 2024
+  printf "%s %s \n" "$OCCUR" "$(( NUM * 2024 ))"
+  return
+}
+
+# Start the loop
+tr " " "\n" < "$FILE" | sort -n | uniq -c > temp-input
+for (( i=0; i<750; i++ ))
+do
+  printf "%s Position %s\n" "$( date )" "$i"
+  #cat temp-input
+  while read -r OCCUR NUM
+  do
+    if [[ -v KV_CACHE[$NUM] ]]
+    then
+      for VAL in ${KV_CACHE[$NUM]}
+      do
+        printf "%s %s \n" "$OCCUR" "$VAL"
+      done
+    else
+      get_num "$NUM"
+    fi
+  done < temp-input |
+  tee temp-output |
+  sort -n -k2 |
+  uniq -c |
+  awk '{sums[$3] += $1 * $2 } END {for (i in sums) {print sums[i], i}}' |
+  sponge temp-input
+done
+printf "Final count: %s\n" "$( awk '{print $1}' < temp-input | paste -s -d "+" | bc )"

2024/day-11/solution-2.sh

@@ -0,0 +1,107 @@
+#!/usr/bin/env bash
+
+declare -A KV_CACHE
+read -r -a ROCK_LIST <<< "$( cat input )"
+DUMP_KV_CACHE=0
+BLINK_NUM=75
+# KV Cache provides n depth search, 
+# but must always be fully divisible by BLINK_NUM
+DEPTH=5 
+if [[ $(( BLINK_NUM % DEPTH )) -gt 0 ]] ;then printf "BLINK_NUM DEPTH mismatch.\n" && exit ; fi
+
+ROCK_RETURN=()
+ROCK_NUM=0
+blink_rock () {
+
+  #printf "Blinking rock : %s\n" "$ROCK_NUM" >&2
+
+  # Remove leading zeroes
+  #ROCK_NUM=$(( 10#$ROCK_NUM ))
+  # Rule 1 : Convert 0 to 1
+  if [[ $ROCK_NUM -eq 0 ]]
+  then
+    ROCK_RETURN=( 1 )
+    return
+  fi
+
+  # Rule 2 : If even number of digits, split half half
+  DIGIT_COUNT=${#ROCK_NUM}
+  if [[ $(( DIGIT_COUNT % 2 )) -eq 0 ]] && [[ $DIGIT_COUNT -gt 0 ]]
+  then
+    HALF=$(( DIGIT_COUNT / 2 ))
+    read -r -a ROCK_RETURN <<< "$( printf "%s %s " "$(( 10#${ROCK_NUM:0:$HALF} ))" "$(( 10#${ROCK_NUM:$HALF} ))" )"
+    return    
+  fi
+
+  # Rule 3 : Multiply by 2024
+  ROCK_RETURN=( $(( ROCK_NUM * 2024 )) )
+  return
+}
+
+ROCKS_TO_BLINK=()
+BLINKED_ROCKS=()
+# Updates the global array
+blink_rocks () {
+  
+  BLINKED_ROCKS=()
+  for ROCK in "${ROCKS_TO_BLINK[@]}"
+  do
+    ROCK_NUM=$ROCK
+    blink_rock
+    BLINKED_ROCKS+=( "${ROCK_RETURN[@]}" )
+  done
+  #printf "BLINKED_ROCKS: " >&2
+  #printf "%s " "${BLINKED_ROCKS[@]}" >&2
+  #printf "\n" >&2
+}
+
+read -r -a FINAL_LIST <<< "$( printf "%s " "${ROCK_LIST[@]}" )"
+POSITION=0
+while [[ $POSITION -lt $BLINK_NUM ]]
+do
+  printf "%s Starting position %s, current len: %s, kv size: %s\n" "$( date )" "$POSITION" "${#FINAL_LIST[@]}" "${#KV_CACHE[@]}"
+  INTER_LIST_1=()
+  # Essentially move $DEPTH steps at a time
+  for ROCK in "${FINAL_LIST[@]}"
+  do
+    # Check if this is already cached
+    if [[ -v KV_CACHE["$ROCK"] ]]
+    then
+      # Retrieve cached entry
+      read -r -a X <<< "${KV_CACHE[$ROCK]}"
+      INTER_LIST_1+=( "${X[@]}" )
+      #printf "Cache hit. Key: %s, Value: " "$ROCK"
+      #printf "%s " "${KV_CACHE[$ROCK]}"
+      #printf "\n"
+    else
+      # Build cache entry
+      ROCKS_TO_BLINK=( "$ROCK" )
+      for (( i=0; i<DEPTH; i++ ))
+      do
+        blink_rocks
+        read -r -a ROCKS_TO_BLINK <<< "$( printf "%s " "${BLINKED_ROCKS[@]}" )"
+      done
+      KV_CACHE[$ROCK]=$( printf "%s " "${BLINKED_ROCKS[@]}" )
+      INTER_LIST_1+=( "${BLINKED_ROCKS[@]}" )
+    fi
+  done
+
+  read -r -a FINAL_LIST <<< "$( printf "%s " "${INTER_LIST_1[@]}" )"
+
+  # All rocks are calculated $DEPTH ahead
+  (( POSITION+=DEPTH ))
+done
+
+# Dump KV cache for debugging
+if [[ $DUMP_KV_CACHE -eq 0 ]]
+then
+  printf "Number of keys in KV cache: %s\n" "${#KV_CACHE[@]}"
+  printf "Dumping KV CACHE\n"
+  for KEY in "${!KV_CACHE[@]}"
+  do
+    printf "Key: %s, Value: %s\n" "$KEY" "${KV_CACHE[$KEY]}"
+  done | sort
+fi
+#printf "%s " "${FINAL_LIST[@]}"
+#printf "\n"
+printf "%s\n" "${#FINAL_LIST[@]}"

2024/day-11/test-input-1

@@ -0,0 +1 @@
+0 1 10 99 999

2024/day-11/test-input-2

@@ -0,0 +1 @@
+125 17

2024/day-12/input

@@ -0,0 +1,140 @@
+AAAAARRRRRRRRRRROOOOOOOOOOOOWWWWWWWWWWWWWMMMMXXQQQQQQQWWWXXXXXXXXQQQQQQQQQQQQQQQQQQQDDDDDDBBBBBBBBBBBBBBBBBRRRRRRRRRRREEEEEEEEEEEEEJJJJJJJJJ
+AAAAARRRRRRRROOROOOOOOOOOOWWWWWWWWWWWWWWWWWMMMMQQQQQQQQWXXXXXXXXXQQQQXQQQQQQQQQQQQQQDDDDDDBBBBBBBBBBBBBBBBBRRRRRRRREEEEEEEEEEEEEZEJJJJJJJJJJ
+OAAAARRRRRRRRROOOOOOOOOOOWWWWWWWWWWWWWWWWWWMMMMQQQQJQQQWXXXXXXXXXXXXXXXQQQQQQQQQQQQQDDDDDBBBBBBBBBBBBBBBBBBRZRRRRRRRREEEEEEEEEEEJJJJJJJJJJJJ
+AAAAARRRRRRRRYHOOOOOOOOOOWWWWWWWWWWWWWWWWWWMMMMMMQQQQQQXXXXXXXXXXXXXXXXQQQQQQQQQQQQQDDDDDBBBBBBBBBBBBBBBBBBZZRRRRRRREEEEEEEEEEEEJJJJJJJJJJJJ
+AAAARRRRRRRYYYOOOOOOOOOOOOWWWWWWWWWWWWWWWWLMMMMMQQQQQQQQXXXXXXXXXXXXXXQQQQQQQQQQQQQDDDDDDDDBBBBBBBBBBBBBBBZZZZRRRRREEEEEEEEEEEEEJJJJJJJJJJJJ
+AAAARRRRRRYYYVOOOOOOOOOOWWWWWWWWWWWWWWWWWWWWGGQQQQQQQQQQQXXXXCCXXXXXIIQQQQQQQQQQQYYEEDDDDDDBBUBBBBNBBBBBBBZZZZRRRREEEEEEEEEEEEEEEEJJJJJJJJJJ
+AAAARRRRRRYYYOOVOOOOOOOWWWWWWWWWWWWWWWWWWWWWGVQQQQQQQQQQQXXCXCCXIIIIIQQQQQQQQQQQYYEEDDYDDDHBBBBBHHBBBUBBBJZZZRRRRRREEEEEEEEEEEEEEEJJJJJJJJJJ
+AAARRRRRYYYYYYYVPOOOOOOOOOOWYYWWWWWWWWWWWWWWGVVQQQQQQQQQHHHCCCCCIIIIIQQQQQQQQQQYYYYYYYYDHHHHHHHHHBBBBBBBYJZZZZZRRREEEEEEEEEGGEEEDDDJJJJJJJJJ
+RAAARRRYYYYYYYPPPOPOOOOOOOOOYYYYWYWPWWWWSVVVVVVVQQQQQQQQHHHHHHNIIIIIIQQQIQQQQQJJJYYYYYYDHHHHHHHHBBBBBBBBBJJJJZRRRRRREEEEEEEGGEEEKKDKJJJJJJJJ
+RRRRRMRYYYYYYUPPPPPOOOOOOOOXXXYYYYYPPWWWPPVVVVVVVVQQQHHHHHHHNHNIIIIIIIIIIQQJJJJJJYYYYYYYYHHYHHHHHBBBBBBJBJJJJZRRREEEEEEEEEEGGEEEKKKKJJJJJJJJ
+RRRMMMYYYYYYYPPPPAPOOOOOOHXXXXYXYYYPPWPPPPVVVVVVVQHHHHCHHHHNNNNNNIIIIIIVJJJJJJJJJYYYYYYYYYYYYHHHHHHJJJJJJJJJJRRRRREXEEEEEEGGGGGGKKKKJJJJJJEG
+RRRMMMMYYYYYYPPPPOOOOOOOOXXXXXXXXXPPPPPPPPPVVVVVVVVVHHHHHHBNNNNNNNIIIIIVJJJJJJJJJYYYYYYYYYYAYAAHHAAAJJJJJJJJJEERRREEEEGGGGGGGGGGRRKKKJJJEJEE
+RRRMMMMMMYYYMMMPPOOOOOOBBXXXXXXNPPPPPPPPPPPVVVVVVDPPPHHHHHNNNNNNNNIIIIIVJJJJJJJJJYYYYYYYYYYAYAAHHAAJJJJJJJJEJXEERRRREGGGGGGGGGGGRRKKGGEJEEEE
+RRMMMMMMYYMMMMMPMMOOOOWWXXXXXXXXKKKKKPGPPPPPPPPPPPPPPPPHHHENENNNNNIIIIIJJJJJJJJJJYYYYYYYYYAAAAAAAAAJJJJJJJEEEEEERRRRRRTGGGGGGGGGGRGGGEEEEEEE
+RRMMMMMMMMMMMMMMMMMWWWWXXXXXXXXXKKKKKGGPPPPPPPPPPPPPPPPPHHEEEEENNNIIIIIJJJJJJJJJJJYYYYYYYYAAAAAAAAAJJJJJJEEEEEEEEERRRRTGZGGGGGGGGGGGGGEEEEEE
+RRRMMMMMMMMMMMMMMMWWWWWXXXXXXGGGGKGUUUGGGYPPPPPPPPPPPPPPPPEEEEEEEEIIIIIJJJJJJJJJJJYYYYYYYYYAAAAAAAAJJJJJJJJEEEEEEERRRRTGGGGGGGGGGGGGGGEEEEEE
+RRRMMMMMMMMMMMMMWWWWWWWWGGGGXGGGKKGGGGGYYYYPPPPPPPPPPPPPPPPPCCEEIIIIIJOJJJJJJJJJJJYYYYYYYYYAAAAAAJJJJJJJJJJEEEEEERRRRRTTGGGGGGGGGGGGGGEEEEEE
+RRRRRMMMMMMMMMMMMMWWWWWWGGGGGGGKKKGGGGGYYYYPPPPPMPPPPPPPCPPCCXXXXXXJJJJJJJJJJJJJJJYYYYYYYYYAAAAAAJJJJJJJJJJJEEEEETTRRTTTTGGGGGGGGGGGGGEEEEEE
+RRRRRMTMMMMMMLWWWWWWWWWWWWGGGGKKGGGGGGGGYPPPPPPPMPPPPPPPCCCCCCXXXXXXXXJJJJJJJJJJJQYYYYYYYYYAAAAAAAJJJJJJJJJJEEEETTTRTTTTTTTGGGGGGGGGGEEEEEEE
+RRRYYMTTMMMMLLWWWWWWWWWWWWWAGGGGGGGGGGGGYGPPPPPPMMPPPPPPCCCCCCCXXXXXXXXJJJJJJJJJJJJYYYYYYYAAAAAAJAJJJJJQQQEEEETTTTTTTTTTTIIIGGNGGGGGGEEEEEEE
+RRRYYMTTMMMMLLLLLWWWWWWWWWWAAAAGGGGGGGGGGGGPPPMMMAAAAPPCCCCCCXXXXXXXXXXXXXJJJJJJJYYYYYLLLLLAAAAAJJJJJJJJQQEEQETTTTTTTTTIIIIIINNGNGGGPEEEEEEE
+YYYYYYJTMMJMLLLLLLLWWWWWWWAAAAAAAGGGGGGGGGLMMMMMMAMAAPCCCDCCCCCDDDXXXXXXXXXJXXXJJYYYYYLLLLLLLANNNJNNJJJQQQQQQTTTTTTTTIIIIIIIINNNNNGGEEEEEEEE
+YYYYYYJTJJJLLLLLLLLWWWWWWZAAAAAAAGGGGGGGGLLLLMMMMMMAAPCCCDDCCCDDDDDDXXXXXXXXXXXWHHYHYLLLLLLLLLLLNNNNNJJQQQQQQTTTTTTCIIIIIIIIINNNNNNNEEEEEERE
+YYYYYYJJJJJLJJLLLLWWWWWWWAAAAAAAAAGGGGGGGLLMMMMMMMMCCCCCDDDDDDDDDDDMDXXXXXXXXXXXHHHHLLLLLLLLLLLLNNNNNNNQQQQQQQTCCCCCIGIIIIIIICCCCNEEEEEERRRR
+YYKKYYJJJJJJJJLLLLLWWWWJWAAAAAAAAGGGGGGGGLLMMMMMMMMXXXXDDDFDDDDDDDDDDXXXXXXXXXXHHHHHLLLLLSSLLLLLLLNNNNNQQQQQQQQQQCCCCCIIIIIIICCCCNNNEEEERRRR
+YYKKKYJJJJJLLLLLLLLLWWWLQAAAAAAZZZZZZZZGLLMMMMMMMMMMXXXDDDDDDDDDDDDDXXXXXXXXXXXHHHHHLSSSSSSSSLLLLNNNNNQQQQQQQQQQQCCCCCIIIIIIIICCCNNNNERRCRRR
+YYKKKJJJJJJLLLLLLLLLWWLLLAEAAAAZZZZZZZZMMMMMMMMMMMMMMMXDDDDDDDDDDDDDXXXXXZXXXXXTHHHLLLSSSSSSSSSSLLLLQQQQQQQQQQQQXXXCCCIIIIIIIICCCNNNNNRRRRRR
+YYKKKJJJJJJJLLLLLLLLLLLLLEEAAAAZZZZZZZZZTMTMMMMMMMMXXXXXDDDDDDDDDDDZXXXEZZVXXXOTTHHHLLSSSSSSSSSLLLLLLQQQQQQQQQOQXXXXXCCCCCICCCCCCCNRRRRRRRRR
+KKKKKJJJJJJJLLLLLLLLLLLLEEEEEAAZZZZZZZZZTTTTMMMMMMMMTTXXXDDDDDDDDDDZXXEEZZXXSSTTTTSHLLSSSSSSSSSSLLUULQQEEQEEQQQXXXXXCCCCCCCCCCCCCCNRRRRRRRRR
+KKKKKKKJKJJJJLLLLLLLNMLLEEEECZZZZZZZZZZZTTTMMMMMTTTMTTXXXDDDDDDDDDZZZZZZZSSSSSSSTSSSSSSSSSSSSSLLLLUUUUUUEEEEEEEXXXXXXCCCCCCCCCCCCRRRRXRRRRRR
+KKKKKKKKKJKKKKLLLLLLNNNNEEECCZZZZZZZZZZZTTTTTTTTTTTTTTTXXDDDDDDDDZZZZZZZZSSSSSSSSSSSMMSSISSSSLLKKKUUUUUUUUEEEXXXPPPPPCCCCCCCCCCZRRRRRRRRRRRR
+KKKKKKKKKKKKKKLLLLLLLNNNNNNCCCZZZZZZZZZZZZZZZTTTTTTTTTGXXXDDDVVZZZZZZZZSSSSSSSSSSSSSSMSSZZZZZZZKKUUUUUUUUEEEEXXXPPPPPCCCCZCZZZZZDDDRRRRRRRRR
+KKKKKKKKKKKKKKLLLLLNNNNNNNNNCCZZZZZZZZZZZZZZZXTTTGTTGGGGGXDDDVVZZZZZZZZSSSSZSSSSSSSSMMSMMZZZZZZKKDUUUUUUUPPPPPPPPPPPPCCCCZZZZZZTZZDRRRRRRRRR
+KKMMMMMMMMMMKKKLLLNNNNNNNNNNCCZJJJZZZZZZZZZZZXXXXGGGGGGGGDDDDVVVZZZZZZZZZZZZZSSSSSSSMMMMMZZZZZZKUUUUUUUUEPPPPPPPPPPPPCCZZZZZZZZZZZDZRRRRRRRR
+KKMMMMMMMMMMMMMMLNNNNNNNNNNNNCZJJJJJRRZZZZZZZXXXXFFGGGGGGGVVVVFVVFYZZZZZZZZZZSSSSSSSSSZZZZZZZZKKUUUUUUUUEPPPPPPPPPPPPXCCCZZZZZZZZPZZRRRYYRRR
+KKMMMMMMMMMMMMMMNNNNNNNNNNNNNNNNNJJJJRZZZZZZZXXXXXGGGGGGGGVVVVFFFFZZZZZZZZZZZZSSSSSSSSKZZZZZZZZKKYUUUUPPPPPPPPPPPPPPPUKRKZZZZZZZZZZIZRMRRRRR
+KKMMMMMMMMMMMMMMNNNNNNNNNNNNNNNNNJJJRRZZZZZZZXXXXGGGGGGGGGGVVVFFFFZZZZZZZZZZZSSSSSSSSSSZZZZZZZZYYYYYUUPPPPPPPPPUPPPPPUKKKZZZZZZZZZZZZQQORRRR
+KMMMMMMMMMMMMMMMNNNNNNNNNNNNNNNNNNJJJRZZZZZZZXXXXGGGGGGGGGVVVVVFFFZZZZZZZZZHHHSSSSSSTSZZZZZZZZZZYYYUUEPPPPPPPPPUPPPPPKKKKKKZZZZZZZZQMQQORRRR
+UMMMMMMMMMMMMMMMNLNNCNNNNNNNNNNNJJJVVRZZZZZZZZZZZZZGGGGGGVVVVVVFFTTJZZZZZZHHHHSSRRSTTZZZZZZZZZZZYYYYYEPPPPPPPPPUUUKKKKKKKKKZZZZZKKPPPPPPPPRR
+UMMMMMMMMMMMMMMMLLLLCNNNNNNNNNNNRRRRRRZZZZZZZZZZZZZGGGGGGGGVVVVVVVTZZZZZZZZHHHSHRRRZZJZZZZZZZSZYYYYYYYPPPPPPPPPKUKKKKKKKKKKNNNNOOOPPPPPPPPRR
+UMMMMMMMMMMMMMMMLLCCCCCCNNNNNNPPPRRRRRZZZZZZZZZZZZZGGGGGGGGGVVFVVVTTZZZZTTTEEHHHHZZZZZZZZZZZZSYYYYYYYYYPPPBBBUUKKKKKKKKKKKNNNNNNOOPPPPPPPPRL
+UMMMMMMMMMMMMMMMMLCCCCCGCCCNNPPPPPPPPRRRRVRVZZZZZZZGGGGGGGGGGGFFFFFTTZZTTEEEEEEHSSZZZZZZZZZZZZZYYYYYYYBPPPBBBKKKKKKKKKKKKKNOONNOOOPPPPPPPPQQ
+UMMMMMMMMMMMMMMMMMCCCCCCCCCCNPLLLPPPPPRRVVRVZZZZZZZGGGGGGGGLGFFFFFFTTTZTEYEEEEEHHSZZZZZZZZZZZZZZZYYYYYBPPPBKKKKKKKKKKKKKKOOOOOOOOOPPPPPPPPQQ
+UUMMMMMMMMMMMMMMMMCCCCCCDDCCULLLPPPPPPRUVVVVZZZZZZZGGGGGGGGGGFFFFFTTTTTTEEEEEEEEEEZZZZZZZZZZZZZSYYYYYYYPPPBBBKKKKKKKKKKKKOOOOOOOOOPPPPPPPPPQ
+UUUMMMMMMMMMMMMMMMMCCCCCCCCCUULLLPPPVVVVVVVVZZZZZZZGGGEEEEYYGFFFFFTTTTEEEEEEEEEEEEZZZZZZZZZZZZZYYYYYYYBPPPBBBKYKKKKKKKKKKOOOOOOWWWPPPPPPPPPQ
+UUUUMMMMMMMMMMGGGGMCCCCCCCCUULLLLLLPVVVVVVVVZZZZZZZGGEEEEEEEEFFFFFTTTTTEEEEEEEEEEEEEZZZZZZZZZZZWYYYYYYYPPPBBBBKKKKKKKKKKKFOOOOOWWWPPPPPPPPPQ
+GGUGMMMMZZMMMMGGGGTCCCCCCCCCUULLLLPPVVVVVVVVVFHHGGGTEEEEEEEEFFFFFFFFFTTTEEEEEEEEEEEEEZZZZZZZZZYYYMYYYYYPPPBBBBBBBKKKKFFFFFOOOOOWWWWWLLPPPPPF
+GGGGGMMZZZZZZZGGGGTTCCCCCCUUUULLLLPPRVVVVVVVFFHHGGGEEEEEEEEEFFFFFFFFTTTTEEEEEEEEEEEEEZZZZZZZZZCYYYYYYYYYBBBBBBBBBKKKKKFFFKOOOOWWWWWWMMPPPPPF
+UGGGGDDZZZZZZMGGGGTTEECCCCUUULLLLLLPPZVVVVVVFFFFEGGEEEEEEEEEFFFFFFUYUETTEUEEEEEEEEEEEEZZZZZZZZCCCCYYYYYYBBBBBBBFBBBKFFFFFKKOOKWWPPPPPPPPPPFF
+GGGGGGGGGGGGGGGGGGTEEEEECCCUULLLLLZZZZZFFVFFFFFFEEEEEEEEEEEEFFFFFUUUUEEEEEEEEEEEEEEEEEEEZZZZCCCYYYYYYYYYBYYBBBFFFBBKFFFKKKPPPPPPPPPPPPPPPPFF
+GGGGGGGGGGGGGGGGGGTPEPECCCUUUUUULZZZZZZFFFFFFFFFEFEEEEEEEEEEEFFFFFUUUEZEEEEEEEEEEEEEEEEEEZZCCCYYYYYYYYYYYYYYQFFFFKKKFFFFFKPPPPPPPPPPPPPPPPFF
+GGGGGGGGGGGGGGGTTTTPPPPPUUUUUULLLLZZZZZFFFFFFFFFFFEEEEEEEEEEEFFFFFFUUUZEEELEEEEEEEEEEEEEEECCCCYYYYYYYYYYYYYYQQFFFFFKFFFKKKPPPPPPPPPPPPPPPSSF
+ZGGGGGGGGGGGGGGTTTKPPPPPQUUULLLLLLLLLLLILFFFFFFFFFFFFEEEEEEEEFFFFFFFUUUUUUUTEEEEEEEEEEEEEEECVCCYYYYYYYYYYYYYQFFFFFFFFFFFFKPPPPPPPPWWWWWWWWSS
+GGGGGGGGGGGGGGGTTKTPPPPQQQUQBBLLLLLLLLLLLFFFFFFFFFFFFEEEEEEEBHFFFFYYUUUUUUUTEEBBBBBBBBBEEEECVCCYYYYYYYYYYYYQQQFFFFFFFFFFFKPPPPPPPPWWWWWWWWSS
+GGGGGGGGGGGGGGGTTTTQQQPQQQQQQQJJLLLLLLLLFFFFFFFFFFFFEEEEEEEEHHHFXFUUUUUUUUUTEEBBBBBBBBBEECCCVCCYYYYYYYYYYYYYQQQQFFFFFFFFFFPPPPPPPPWWWWWWWWSS
+GGGGGGGGGGGGGGGTTTTQQQQQQQQFFLLLLLLLLLLLLFFFFFFFIFYYPPEEEHHHHHHHUUUUUUUUUUUEEEBBBBBBBBBEEEVVVCCYYYYYYYYYYYYYQQQFFFFFFFFFFFPPPPPPPPWWWWWWSSSS
+GGGGGGGGGGGGGGGTTTTQQQQQQQQQFLGLLLLLLLLLLFFFFFFFCFYCPPEHHHHHHHHDUUUUUUUUUUUUUEBBBBBBBBBEEEVVVCYYYYYYYYYYYYYYYFFFFFFFFFFFFFPPPPPPPPWWWWWWSSSS
+GGGGGGGGGGGGGGGTTTTQQQQQQQQFFLLLLLLLLLLHFFFFFCCCCCCCPPPPPPHHPZZDDUUUUBBBBBBBBBBBBBBBBBBEEETEVVVVVVVYVYYYYYKKKKKFFFFFFFFFFFPPPPPPPPWWWWWWSSSB
+GGGGGGGGGTTTTTPTTTTTTQQQQQQQQELLLLLLLLLHHCFFFCCCCCCCPPPPPHHHPPZDDDDUUBBBBBBBBBBBBBBBBBBEEEEEEVVVVVVVVVYYKKKKYKKKFFFFFFFFFFFFMMWWWWWWWWWWDSSB
+AAAAGGGGGSXTTTPTHHHHHQQQQQQQEEEELLLLLLLHCCCCCCCCCCCCPPPPPPPHPTDDDDDUABBBBBBBBBBBBBBBBBBEEEEEEVVVVVVVVVYYYKKKYYKKKFFFFFFFFFMMMMWWWWWWWWWWDDSB
+AAAAGGGGGSXTDDSAHUHHHQQQQQEEEEEEELLLZZLHCCCCCCCCCHHPPPPPPPPPPDDDDDDDDBBBBBBBBBBBBBBBBBBBBBBVVVVVVVVVVVVYYKKKYOYKKFFFFFFMMMMMMMWWWWWWWWWWDDSB
+AAAAAASSSSSSSSSHHHHHHHHQQQEEEEEEELLLZZZCCCCCCCCCCHHPPPPPPPPPDDDDDDDDDBBBBBBBBBBBBBBBBBBBBBBVVVVVVVVVVVVYYKKYYYYKFFFJQFFQNNNNMMWWWWMWWWWWMDSB
+AAAAAASSSSSSSSSHHHHHHHQQQQEEEEEENNZZZZZCCCCCCCCCHHHHHPPPPPPPDDDDDDDDDBBBBBBBBBBBBBBBBBBBBBBNVVVVVVVVVVVYYYYYYYKKKKJJQQQQNNNNMMWWWWMMMMMMMMBB
+AAAAAASSSSSSSSSSHHKKHKKQQEEEEEENNNNZZZZCCCCCCCCHHHHHPPPPPPPPDDDDDDDDDBBBBBBBBBBBBBBBBBBBBBBBVVVVVVVVVVVYYYYYYYYYYKJJJJJNNNNNNRWWWWMMMMMMMBBB
+AAAAAASSSSSSSSSSHHKKKKKQQQEEERRNNNNZZZZZCCCCCCCCHPPPPPPPPPDDDDDDDDDDDBBBBBBBBBBBBBBBBBBBBBBBBVVVVVVVVVVYHYYYYYYYFJJJJJJNNNNRRRWWWWMMMMMMMBBB
+AAAAASSSSSSSSSSSXHKKRRQQQQEEEERRNZZZZZLZZZKKKCCPPPPPPPPPPPPPOODDDDDDDDDDDGGGTTBBBBBBBBZZZBBBBBVVVVVVAAAAAAYYYYVYJJJJJJJNNJNRCCWWWWMMMMMMMBBB
+AAAAASSSSSSSSSSSRRRRRRRBQEERRRRZZZZZLLLZZLKKKKPPPPPPPPPPAAAYAODDDDDDDDDDDGGGTTBBBBBBBBBBBBBBBBVVVVVVAAAAAAYYYYYJJJJJJJJJJJJCCTWWWWMMMMMMMBBB
+ALAVVSSSSSSJSSSSRRRRRRRRARRRRRRRZZZZZZLLLLKKKKPPPPPPPPAAARAAADDDDDDDDDDDDDGGTTBBBJJBBBBBBBBBVVVVVVVAAAAAAAAYYYYJJJJJJJJJJCCCCCWWWWMMMMMMMMBB
+VVAVVVVSSSVSSSSSZRRRRRRRRRRRRRZZZZZZZLLKLLKKKKKKPPKPPPAAAAAAAADDDDDDDDDDGGGGTTBBBAABBBBBBBBBVVVAAAAAAAAAAAAYJJJJJJJJJJJJJCCCCCWWWWMMMMMCMCCC
+VVVVVVVVVVVVSVOSRRRRRRRRRRRRRZZZZZZZZEGKKKKKKKKKKKKPAAAAAAAAAADDDDDDDDDDGGGTTTGAAAABBBBBBBBBVXVZAAAAAAAAJJJJJJJJJJJJJJGJJVCCCCWWWWMMMMCCCCCC
+ZZVVVVVVVVVVVVOOORRRRRRRRRREEEEEEEZZEEKKKKKKKKKKKPPPEAAAAAAAAACCDDDDDDDDGGTTTTAAAAAABBBBBBBIIAAAAAAAAAJJJJJJJJJJJJJJJJGGGGCCCCCCCCCMMCCCCCCC
+ZZZVVVVVVVVVVVZZZRRRRRRRREREEWEEEEEEEEEKKKKKKKKKKPPPEAAAAAAAACCCAADDDDDGGGTTTTAAAAAABBBBBBBIIIITAAHHHAAJJJJJJJJJJJJJGJGGGGGCCCCCCCCCCCCCCCCC
+ZZZVVVAAVVVVVZZZZRRRRRRRREEEEWEEEEEEEEEKKKKKKKKKFPPPEEEEEEAACCCCUUZZZDDQQQTTTAAQQQQQABDBBBBIITTTAHHHAAAJJJJJJJJJJLGGGGGGGGGGGGCCCCCCCCCCCCCC
+ZZZZVVAAAVZVZZZZZZERRTRREEEEEEEEEEEEEEEKKKKKPPPFFPPPEBEEEECCCCCUUUZZZZQQQTTTTQQQQQQQABBBHBJTTTBTTHHHHHHHJJJJJJJJLLGFGGGGGGGGGGCCCCCCCCCCCCCC
+ZZZZVZGGZZZZZZZZZZZZTTRRREEEEEEEEEEEEEEKKKKPPPPPFPPPPBKEEECCCUCCUUZZZZQQQQQQQQQQQQQQAUUUWWWTTTTTGHAHXXHJVCJVVJJLLLLGGGGGGGGGGGGGGGCCCCCCCCCC
+ZZZZZZZGZZZZZZZZZZZQQTTTREEEEEEEEEEEEEEEKKPPPPPPPPPPPBKCECCCCUCCUUZZZZQQQQQQQQQQQQQQQQUUUJWWWTTTHHHHHHHHVCVVVVVLLVLVGGGGGGGGGGGGPGCCCCCCCCCC
+ZZZZZZZGZZZZZZZZZZZZQTTTQEEEEEEEEEEEEEEEPPPPPPPPPPPPPBKCCCCCUUUUUUZZZZQQQQQQQQQQQQQQQQUUWWWWWTTTHHHHHHHHVVVVVVVVVVVVGGGGGGGGGGRRRCCCRCCRCCYC
+ZZZZZZZZZZZZZZZZZZZQQTQQQQEEQEEEEEEEEEEEEPMPPPPPPOOPPKKCCUUUUUUUUUQQQQQQQQQQQQQQQQQQQQUUUWWWMMTTTMMHHHHHVVVVVVVVVVGGGGGGGGGGGRRRRRCCRCRRCCYF
+ZZZZZZZZZZZZZZZZZZQQQQQQQQQQQEEEEEEEEEEEEPPPPPPPPOOKKKKCCURBRRUUUQQQQQQQQQQQQQQQQQQQQQUUWWWMMMMMMMMHHHHVVVVVVVVVVVGGGGGGGGGGGGGGRRRRRRRRYCYY
+ZZZZZZZZZZZZZZZZQQQQQQQQQQQQEEEEEBDEEEEEEDPPPDDPKKKKKKKKCRRRRIRUUCQQQQQQQQQQQQQQQQQUUUUUWWMMMMMMMMMMHHHXXVVVVVVVVVGGGGGGGGGGGGGGRRRRRRRYYYYY
+ZZZZZZZZZZZZZVVZQMMMQQMYQQQQEEEEEEDDEEEEEDPDDDDDKKKKKKCCCRRRRRRURCQQQQQQQQQQQQQQQQQUUUUUWWMMMMMMBBBBBHBXXVVXVUUKKKKGGGGGGGGGGGGGGRRRRRRRYYYY
+ZZZZZZZZZZZZMMVMMMMMMMMYYQYYHHEEDDEEEEEEEDDDDDDDKKKKKKKKCCRRRRRRRCCQQBOOQQQQQQQQQQQUUUUUUUUUMMBBBBBBBBBXXXXXXUUUUKGGGGFFGGGGGGGRRRRRRYYYYYYY
+ZZZZZZZZZZZWMMVMMMMMMMYYYYYYYHHHHHEEEEEDDDDDDDIDKKKKKKKKKCRRRRRRCCCQBBBBBBBBQQQQQQQQUUUBUUUMMBBBBBBBBBBXXXXXUUUUUULUFGFFGGGGGGGRFRYYYYYYYYYY
+ZZZZZZZZZZZWMMMMMMMMMYYYYYYYYHHHHDEEEEEDDDDDDDKKKKKKKKKKKCCCCRCRCCCIVBBBBBBBQQQQQQUUUUUBBBMMMMBBBBBBBBBXXXXUUUUUUUUUUFFFFGGGFGFFFFFYYYYYYYYY
+ZZZZZZZZMMMMMMMMMMMMMYYYYYYYHHHHHDDDDDDDDDDDDDKKKKKKKKKCCCCCCRRRCCCIBBBBBBQQQQQQQQUUVNNNBBBMMMBBBBBBBBBXXXXUUUUUUUUUUFFFFFFFFFFFFFFYYYYYYYYY
+ZZZZZZZZZMMMMMMMMMMMYYYYYYYYHHHHYYKDDDKKDDDDDDKKKKKKGGKCCCCCCCCCCCCIIBBBBBBQQQQQOGUUVNNNBBBBNNBBBBBBBBBBXXXUUUUUUUUUUFFFFFHHHHFFFFYYYYYYYYYY
+ZZZZZZZZZMMMMMMMMMYYYYYYYYYYYYYYYYKDKDKDDDDDKDKKKKKKGGGGCCCCCCCCCCIIBBBBBBBBQQQOOOOONNNNBNNBNNNNBBBBBBBXXXUUUUUUUUUUUFFFFHHHHFFHHFHYYYYYYYYY
+ZZZZZZZZZMMMMMMMMYYYYYYYYYYYYKKKKKKKKKKDDDDKKKKKKGGKGGGGGCCCCCCIIIIIBBBBBBBBQQQQOOOENNNNNNNNNNNNBBBBTTBXXXUUUUUUUUUUUFFFFFFHHHFHHHHBYYYYYYYY
+ZZZZZZZZZMMMMMMMMYCYYYYYYYYYYYYKKKKKKKKKKKKKKGKKGJGGGGGGGGGGCCCOIIIBBBBBBBBBBKQOOOOOONNNNNNNNNNZBBBBBTTTTTUUUUUUUUUUFFFFFFHHHHHHHHHYYYYYYYYY
+ZZZZZZZZMMMMMMMMYYYYYYYYYYYBYBBWWWKKKKKKKKKKKGGGGGJGGGGGGGGGGCOOOBBBBBBBBBBBKKKOOOOOONNNNNNNNNNNBBTTTTTTTTAUUUUUUUUUFFFFFFHHHHHHHHHHHYYYYYYY
+ZZZZZZZZOOOMZMMZZZYYYYYYYYBBBBBWWWWKKQKQKKKKGGGGGGGGGGGGGGGGGCOOBBBBBBBBBBBKKKOOOOOOONNNNNNNNNNNBBTTTTTTTAAUUUUUUUUFFFFFFFFFHHHHHHHHHYYYYYYY
+ZZMZMZZOOOOOZMMZZZYYYYYYYYYBBBBWBWWKQQQQQKKKGGGGGGGGGGGGGGFGFFFOOOOBOOBBBBBBKOOOOOOOONNNNNNNNNNNNBBBTTTTTTTUUUUUUUFFFFFFFFFFFFHHHHHHHYYYYYYY
+ZLMMMOOOOOOOZZZZZYYYYZYYYYYBBBBBBBWKKKQQQQKKKKGGGGGGGGGGGGFFFFFFOOOOOOOBKKKKKOOOOOOYYNNNNNNNNNNNNNNNTTTTTVTTOFFFFUFFFFFFFFFFFHHHHHZZZZYYYYYY
+MMMMMOMMOOOOBZZZZZYYZZYZBBBBBBBJBHWHQQQQTTTKKKKGGGGGGGGGGFFFFFFFOOOOOOOBKKKKKOOOOGOXYYNNNNNNNNNNOEOOTTTTTTOOOOFFFFFFFFFFFVVFFFHZZZZZZZYZYYYY
+MMMMMMMMOOOOBZZZZZZYZZZZZZZBBBJJJHWHQQQQTTTTTGGGGGFFFGGGFFFFFOOOOOOOOOOOHHHHHGGGOGGXYYYNNNNNNPPPOOOOOOTOOOOOOOFFWWWWFFFFFFVVVZZZZZZZZZYZYYYY
+MMMMMMMMOOOOBZZZZZZZZZZZZZZBJJJJJHHHHQQTTTTTTTDGGFFFFFFFFFFFFOOOOOOOOOOHHHHHGGXGGGGXXYYNNNNNPPPPPPOOOOOOOOOOOFFWWWWFFFFFVVVVVZZZZZZZZZZZZYYY
+MMMMMMMOOOOBBZZZZZZZZZZZZZZZJJJJJHHHHHTTTTTTTTDDDDFFFFFFFFFPPFOOOOOOOOOHHHKKXXXXXXXXXXNNNNNNPPPPPPOOOOOOOOOIOOOOWWWWWWFFFVVVVZZZZZZZZZZZZYYZ
+MMMMMMOOOBBBBZZZZZZZZZZZZZJJJJJJJHHHHTTTDTTTTDDDDDFFFFFFHFFFFFOOOOOYOOHHHHHXXXXXXXXXCXXNGGNPPPPPPPOOOOOOOOIIIWWWWWWWWWWWFVVVVZZZZZZZZZZZZZZZ
+MMMMMMOOBBBBBBZZZZZZZZZZZZZZJJJJJJJJHHHTDTTTTDDDDDFFFFFFFFFFFOOOOOOYYHHHHHXXXXXXXXXXXTUUUUNPPPNPPOOOOOOOOOOIWWWWWWWWWWWWWWWZZZZZZZZZZZZZZZZZ
+MMMMMMMOOBBBBBBBZZZDDDZZZJJJJJJJJJJJHHHDDTTTTDDDDDFFFFFFFFFFFOOOOOYYYHHHHHHHXXXXXXXXXTUUUNNNNNNNOOOOOOOOFFRRWWWWWWWWWWWWWRRRZZZTZZZZZZZZPZZZ
+MMMMMMMBBBBBBBBBZZZZDDDDJJJJJJJJHHJHHHHDDDDDDDDDDDFKFFFFFFLFFFOOOOYYYYHHHHHHXXXXXXXXXXUUUNNNNNNNNOOFFFFFFRRRRRWWWWWWWWWWWWWRRZZTZZZZZZZZPZPP
+MMMMMMMMMBBBBBZZZZZDDDDDDDEJJJJJHHHHHHHDHDDDDDDDDFFKFFFFFFFFFOOOOOOYYYYHHHHHCXXXXXXXXUUNNNNNNNNNNNNFFFFFFRRRRRWWWWWWWWWWRWWRZZTTZZIPPZZPPPPP
+MMMMMMMMBBBBBBZZZZDDDDDDDDDJJJJJHHHHHHHHHDDDDDDDDFFFFFFFFFFFOOOOOODDYYYYHHHHCCXXXXXXXUUUUNNNNNNNNNNFFFFFFSRRRRRWWWWWWWWRRRRRZZZZZPIPPPPPPPPP
+NMMMNMNMBBBBBBBZZZZZDDDDDDDHJHHHHHHHHHHHRHDDDDDLFFFFFFFFFFFFOOOOODDDYYYYHYYYYXXXXXXXXXUUUNNNNNNNNNNNFFFFSSSSRRWWWWWWWWWRRRRRZZZZPPIPPPPPPPPP
+NNNMNMNNBBBBBBBBZZZZPDDDDDDHHHHHHHHHHHHHHHLLLLLLLZFFFFFFFFFFOOOOODYYYYYYYYYYYYXXXXXXXXUUUUNNNNNNNNNFFFFFSSSSSSKKWWWWWWWRRRRRZZZZPPPPPPPPPPPP
+NNNNNNNNNBBBBBBBZZZZZDDDDDDHHHHOHHHHHHHHHHHLLLLLLZZFFFFFFFFFFOOYYYYYYYYYYYYYYYYXXXXXXUUUUUNNTNNNNNFFFFFFFSSSSSSWWBWWWWWWZRZZZZZZZZPPPPPPPPPP
+NNNNNNNNNBBBBBBBBZZZZZDDDDDHHHOOOOHHHHHHHHHHHLLLFFFFFFFFFFFFFOOYYYYYYYYYYYYYYYYXXUJXXUUUUUUNNNNWWFFFFFFSSSSSSSSSSWWWWWWWZZZZZZZZZZPPPPPPPPPP
+NNNNNNNNBBBBBBBUUUZZZZDDDDHHHOOOOOHHHHHHHHHHHHHHHHFFFLFFOOOOOOOOOYYYYYYYBOYYYYYYYUUXUUUUUUUNNWWWFFFFFFFFFSSSSSSSSSSWWWZWZZZZZZZZZZZPPPPPPPPP
+NNNNNNNNNBBBBBBBKUKRKKKDDHHHHHOOOOHHHHHHHHHHHHHHHHHFFFFFOOOOOOOOOOOZYYRYOOOYYYYYYUUUUUUUUUUUUUWWWFFFFFFFSSSSSSSSSSWWWZZZZZZZZZZZZZZZPPPPPPPP
+NNNNNNNNYBBJBBXXKKKRKKPPPHHHHHHOOOOOHHHHHHHHHHHHHHIFFFFFOOOOOOOOZZOZYYLLOOOOOOYOUUUUUUUUUUUUUUWFFFFFFGGQQSSSSSSSSSSSWZZZZZZZZZZZZZZPPPPPPPPP
+NNNNNNXBBBBBXXXKKKKRKKPPHHHHHHHOOOOOHHHHHHHHHHHFFFFFFFFFKOOOOOZOZZZZZZLLLLOOOOOOCUUUUUUUUUUUUUWWWVFFFFGGGSSSSSSSSSSSSSSZZZZZZZZNNNBPPPPNPPPP
+NNNNNNBBBBBXXKXKKKKKKKKHHSHHHHOOOOOOHHHHHHHHHHHHHHFFFFZKKOKKZZZZZZZZZLLLLOOOOOOOCUUKUUUKUUUXVUWVVVVGGGGGGGGSSSSSSSSSSSSZZZZZZZZZNBBBPNNNNPPP
+NNNNNTTTBBBXXKKKKKKKKKSHHSHHHHHOOOOOOOHHHHHHHHHHHHFFFFZKKKKKZZZZZZZZZZLLLLLOOOOOOOKKUKKKUUVVVVVYVVVYGGGGGGGGSSSSSSSSSSSSZZZZZZZZNNNBPNNNSPPP
+NNNNNTTTTMBXKKKKKKKKKKSHSSSHHHHOOOOOOOHHHHHHHHHHHHHFZZZKKKKEEEZZZZZLLLLLLLLOOOOOKKKKUKKZUVVVVVVVVVVYGGGGGGSSSSSSSSSSSGGGGGGZZZZZNNNNGNNNNPNN
+NTTNTTTTTTBXKKKKKKKKKKKKSSSHHHXOOOOOOPFFHHFHHFHHHHHZZXZZKKKEEEEEZPUULLLLLLLOOOOOZKKKKKZZCVVVVVVVVVVGGGGGGSSSSSSSSSSSSGGGGGGZGZZZNNNNNNNNNNNN
+TTTNTTTTTTTTKNKKKKKKKKKKKKKVPHPFFOOOPPFFHHFFHFHHHHZZZXXXEEEEEEEEPPPUULLLLLOOOOOOZZKKZZZZZQVVVVVVVVVMGGGGGGMMMMSSSSSSSGGGGGGGGGZNNNNNNNNNNNNN
+TTTTTTTTTTTITTTKKKKKKKKKKKKVPPPPPPPPPPFFFFFFHFFFFFXXXXEEEEEEEEPPPPPLLLLLLLLOPOCCZZKZPZZZZVVVVVVVVVVMMGGGGGMMMMSSSSGSSGGGGGGGGGZNNNNNNNNNNNNN
+TTTTTTTTTTTTTEEEKKKKKKKKKKKPPPPPPPPPPPPFFFFFFFFFFFXXXXXXEEEEEPPJPPPLPPLLPPPPPPCZZZZZZZZZZVVVVVVVVVVMMMGGMMMMMSSGSSGGGGGGGGGGNZZZUNNNNNNNNNNN
+TTTTTTTTTTTTTFEEEKKKKKKKKKKPPPPPPPPPPPPFFFFFFFFFFXXXXXXXXEEEXPPPPPPLPPPLPPPVPCCPZZZZZZZZZZVVVVVVVVVVMMGGMMMMMGGGGGGGGGGGGGGGNNNUUNNNNSNNNNNN
+TTTTTTTTTTTTFFFEEFKKKKKHKKKPPPPPPPPPPPPFPPFFFFFFFXXXXXXXXEXXXOOPPPPPPPPPPPPPPPPPZZZZZZZZZZZVVVVVVMMVMMMMMMMGGGGGGGGGGGGGGGGGNNNNNNNSSSSNNNNN
+TTTTTTTTTTTTTFFFFFZKKKWLLLKGPPPPPPPPPPPPPFFFFFFXXXXXXXXXXXKXXXPPPPPPPPPPPPPPPPPPZZZZZZZZZZZZVVVMMMMMMMMMMMMGGGGGGGGGGGGGGGGGGNNNNNNNSMSSNNNV
+TTTTTTTTTTTFFFFFFFFFFFLLLLPPPPPPPPPPPPPFFFFFFFFFXXXXXXXXXXXXXXXPPPPPPPPPPPPPPPPPZZZZZZVZZZZZZZVMMMMMMMMFMMGGGGGGGGGGGGGGGGGGGNNNNNNNNMNSNVVV
+TTTTTTTTKKKKFFFFFFFFFFLLLLLLZPPPPPPPPPPFFFFFFFFFXXXXXXXFXXSSSXPPPPPPPPPPPPPPPPPPZZZZZVVVZVZZZMMMMMMMMMFFFFFGGGGGGGGGGVGVVVVVGNNNNNNNMMNNNNNV
+TTTTTTTKKKKKKFFFFFFFFFLLLLLLZZYYPPPPPPPPFFFFFRRFXXXXXXFFXXSSSSPPPPPPPPHPPPPPPPZZZZZZZQVVVVVVZMMMMMMMMMFFFFFGGGGGGGGVVVVVVVVNNYNNNNNYSSSSSSNS
+TTTBBBBBKKKKFFFFFFFFFFFLLLLLLLYYYPQQPYPPFFFFRRRRRXXXXXFFFTTSSSPPPPPHHHHHPHPPJJJBLBBBVVVVVVVVMMMMMMMMMMFFFFFFGGGGGGNNVVVVVVVNYYYYYYYYSSSSSSSS
+TTBBBBBBBBKFFFFFFFFFFFLLLLLLLYYYYYQYYYYFFFFFFRRRRXXXXXXXFTTTTDDDDHHHHHHHHHHHHJJBBBBBVVVVVVVVVMMMMMMMKFFFFFFFFGGGGGNNVZZVVVNNYYYYYYYSSSSSSSSS
+BBBBBBBBBYKFFFFFFFFFFFLLLLLLYYYYYYYYYYFFFFRRRRRRRRRXXXXFFFTTDDDDDHHHHHHHHHHHHHBBDKBBVVVVVVVVMMMMMMKKKFFFFFFFFFFGFGNNNVVVVVNNYYYYYYSSSSSSSSSS
+BSBSSSSUYYKFFFFFFFFFFLLVVVVYYYYYYYYYYYFFFFFRRRRRRRRRRGXTTTTTTDDDDIHHHHHHHHHHDDDDDKKKVVVVVVVVMMMMMKKKKKKTFFFFFFFFFNNNNVVVVVNTTRYPYYSSSSSSSSSS
+SSSSSSSSYYYYYYFFFFFFFVLVVVVVVYYYYYYYYYYFFFFRRRRRRRRRRRTTTTTTTTDDDDDHHHHHHHHHHDDDKKKKVVVVVVVVVVMMMMKKKTTTFFFFFFFFFFNNNNNVVVNNTRYYYSSSSSSSSSSS
+SSSSSSSUUYYYYYFFFFFHVVVVVVVVVVYYYYYYFFFFFFRRRRRRRRRRRRRTTTTTTTDDDDDDHHHHHHHHQHKKKKKKVVVVVVVSSMMMMMMEEETMFMVVYXFAAFNNNNNNVNNNTTTTYSSSSSSSSSSS
+SSYSSSUUUYYYYYWFFFFVVVVVVVVVVYYYYYYYFFFRRRRRRRRRRRRRRRRTTTTTTTDDDDDDDDDDHHHHHHKKKKKKKVVVVVSSSMMMMMMEEEMMMMYYYYFAAAYNNNNNNNTNTTTTSSSSSSSSSSSS
+SSSSSSSSUYYYYNSFFFFVVVVVVVYYYYYYYYYYKFFRRRRRRRRRRRRRRRTTTTTTTDDDDDDDDDDDHHHHHIKKKKKKIIIVVVSESMMMMMMEMMMMMMMYYYYYAAYNNNNNTTTTTTTTTSSSSSSSSSSS
+SSSSSSCCYYYNNNSSSSSGGVVVVEEYYYYYYYYYKFFRRRRRRRRRRRRRRRTTTTTDDDDDDDDDDDDTHHHHHIKIKKIIIIIIIIEEMMMMMMEEEMMMMMMYYYYYYYYNYNNNTTTTTTTTYYSSSSSSSSSS
+SSSSSSCCCCIIIIGGSSSGVVVVVVVYYYYYYYYYKFFIIRRRRRRRRRRRRRRRTTTTTDDDDDDDTTDTHHHAHIIIIIIIIIIIIIIEEMEEEEEEEMMMMLYYYYYYYYYYYYNNNTTTTTYTYXYMSSSSSSSS
+SSSSTTCTCIIIIIIISSGGGVVVOOOOOYYYYYYYYIIIIIRRRRPRRRRRTRRRTTTTTDDDDDDDTTDTTHBAAIIIIIIIIIIIIIIEEEEEEEEEEEMMMMYYYYYYYYYYZZNNNTTTTTYYYXYMSSSSSSSS
+TTTTTTTTTIIIIIIIIGGGGGVVVVYYYYYYYYYYYIIIIIRRRRRRRRRRRRRTTTTTTTDDDTDDDTTTTAAAAAIIIIIIIIIEEIEEEEEEEEEEEEMMMMMMMYYYYYYYZZZZZZZTTTYYYYYYYSSSQSSS
+TTTTTTTTIIIIIIIIIGGGGGVVVVGGYYYYYYYYYIIIIHTRRRHRRRRRRRHTTTTTTTTTDTTTTTTTTTAAAAIIIIIIIIIEEEEEEEEEEEEEEEMMMMMYYYYYYYYYYZZZZZZTTTTYYYYYSSSSQSSS
+TTTTTTTTIIIIIIIIIIIGGGGGGGGGGYYYYYYYIIIIIHRRRHHHRRRRRRHTTTTTTTTTTTTTTTTTTTAAIAIIIIIIIIIIEEEEEEEEEEEEEEMMMMMMYYYYYYYYYYTZZZTTTTTTTYYYYYSSSRSR
+TTTTTTTTIIIIIIIGGGGGGGGGGGGGYYYYYYYYYIIIIHHHHHHHHHHHHHHHHHTTTTTTTTTTTTTTTAAAIIIIIIIIIIIEEEEEEEEEEEEEEEEEEEMYYYYYYYYYYYTXZZTTTTTTTTYBYRSRRRSR
+TTTTTTTXIIRIRIIIGGGGGGGGGGGGYYYYYYEYIIIIIHHHHHHHHHHHHHHHHHHTTTTTTTTTTTTTAAAIIIIIIIIIIIEEEEEEEEEEEEEEEEEEEEMYYYYYYYYYTTTTTTTTTTTTTTBBYRRRRRRR

2024/day-12/solution-1.sh

@@ -0,0 +1,128 @@
+#!/usr/bin/env bash
+
+FUNCNEST=99999
+FILE=input
+read -r -a MAP_ARRAY <<< "$( < "$FILE" paste -s -d "" | sed -E 's/(.)/\1\ /g' )"
+MAP_LEN=${#MAP_ARRAY[@]}
+MAP_WIDTH=$(( $( head -1 "$FILE" | wc -c ) -1 ))
+MAP_WIDTH_INV=$(( 0 - MAP_WIDTH ))
+MAP_HEIGHT=$( < "$FILE" wc -l )
+printf "Len: %s Width: %s Height: %s\n" "$MAP_LEN" "$MAP_WIDTH" "$MAP_HEIGHT"
+
+# Check if tiles are adjacent and do not violate bounds
+check_adjacent () {
+
+  # Check for out of map bounds
+  if [[ $2 -lt 0 ]] || [[ $2 -gt $MAP_LEN ]]
+  then
+    return 1
+  fi
+
+  DIFF=$(( $2 - $1 ))
+  # Valid adjacent distances
+  if [[ $DIFF -eq 1 ]] || [[ $DIFF -eq -1 ]] || [[ $DIFF -eq $MAP_WIDTH ]] || [[ $DIFF -eq $MAP_WIDTH_INV ]]
+  then
+    :
+  else
+    return 1
+  fi
+
+  # Check for left/right bounds
+  if [[ $DIFF -eq 1 ]] && [[ $(( $2 % MAP_WIDTH )) -eq 0 ]]
+  then
+    return 1
+  fi
+  if [[ $DIFF -eq -1 ]] && [[ $(( $1 % MAP_WIDTH )) -eq 0 ]]
+  then
+    return 1
+  fi
+
+  return 0
+}
+
+# Basically recurse over mapping and "consume" all adjacent tiles
+check_and_unset () {
+
+  IDX=$1
+  local KV_I=${IDX%% *} # Remove trailing whitespace
+  (( AREA++ ))
+  VALUE=${KV_CACHE[$KV_I]}
+  unset "KV_CACHE[$KV_I]" # "Take" it
+  printf "max: %s peri: %s area: %s key: %s val: %s\n" "$MAX_PERI" "$PERI_NUM" "$AREA" "$1" "$VALUE" >&2
+
+  (( PERI_NUM+=MAX_PERI ))
+  unset IFS; read -r -a VAL_ARRAY <<< "$VALUE"
+  for VAL in "${VAL_ARRAY[@]}"
+  do
+    (( PERI_NUM-- ))
+    VAL_IDX=${VAL%% *}
+    if [[ -v KV_CACHE[$VAL_IDX] ]] # Check if tile has been "taken"
+    then 
+      check_and_unset "$VAL_IDX"
+    fi
+  done
+
+}
+
+while read -r CHAR
+do
+  # Get all indexes for a plant
+  read -r -a CHAR_ARRAY <<< "$(
+    for (( i=0; i<MAP_LEN; i++ ))
+    do
+      if [[ ${MAP_ARRAY[$i]} == "$CHAR" ]]
+      then
+        printf "%s " "$i"
+      fi
+    done
+  )"
+
+  { 
+    printf "For char %s \n" "$CHAR"
+    printf "%s " "${CHAR_ARRAY[@]}"
+    printf "\n" 
+  } >&2
+
+  declare -A KV_CACHE
+   
+  IFS=':'; while read -r VAR1 VAR2
+  do
+    printf "VAR1: %s VAR2: %s\n" "$VAR1" "$VAR2" >&2
+    KV_CACHE[$VAR1]=$VAR2
+  done <<< "$(
+  
+    # Find all adjacent tiles
+    for (( i=0; i<${#CHAR_ARRAY[@]}; i++ ))
+    do
+      NUM_ADJ=0
+      printf "%s:" "${CHAR_ARRAY[i]}"
+      MIN=$(( $(( i-MAP_WIDTH )) < 0        ? 0                  : $(( i-MAP_WIDTH )) ))
+      MAX=$(( $(( i+MAP_WIDTH )) < MAP_LEN  ? $(( i+MAP_WIDTH )) : $(( MAP_LEN     )) ))
+      for (( j=MIN; j<=MAX; j++ )) # There can only be MAP_WIDTH number of elements within valid range
+      do
+        if check_adjacent "${CHAR_ARRAY[i]}" "${CHAR_ARRAY[j]}"
+        then
+          printf "%s " "${CHAR_ARRAY[j]}"
+          (( NUM_ADJ++ ))
+        fi
+      done
+      printf "\n"
+      #printf "Num adj for %s idx %s is %s\n" "$CHAR" "${CHAR_ARRAY[$i]}" "$NUM_ADJ" >&2
+    done
+  )"
+
+  # Iterate through
+  for CH in "${CHAR_ARRAY[@]}"
+  do
+    CHAR=${CH%% *} # Remove trailing whitespace
+    if ! [[ -v KV_CACHE[$CHAR] ]]; then continue; fi
+    MAX_PERI=4
+    PERI_NUM=0
+    AREA=0
+    check_and_unset "$CHAR"
+    printf "char: %s max: %s peri: %s area: %s\n" "$CHAR" "$MAX_PERI" "$PERI_NUM" "$AREA" >&2
+    printf "%s\n" "$(( PERI_NUM * AREA ))"
+  done
+# Get all plants
+done <<< "$( < "$FILE" grep -o '[A-Z]' | sort -u | grep -o '[A-Z]*' )" |
+  paste -s -d "+" | bc

2024/day-12/solution-2.sh

@@ -0,0 +1,112 @@
+#!/usr/bin/env bash
+
+FUNCNEST=99999
+FILE=test-input-1
+read -r -a MAP_ARRAY <<< "$( < "$FILE" paste -s -d "" | sed -E 's/(.)/\1\ /g' )"
+MAP_LEN=${#MAP_ARRAY[@]}
+MAP_WIDTH=$(( $( head -1 "$FILE" | wc -c ) -1 ))
+MAP_WIDTH_INV=$(( 0 - MAP_WIDTH ))
+MAP_HEIGHT=$( < "$FILE" wc -l )
+printf "Len: %s Width: %s Height: %s\n" "$MAP_LEN" "$MAP_WIDTH" "$MAP_HEIGHT"
+
+# Check if tiles are adjacent and do not violate bounds
+check_adjacent () {
+  # Check for out of map bounds
+  if [[ $2 -lt 0 ]] || [[ $2 -gt $MAP_LEN ]] ; then return 1 ; fi
+
+  DIFF=$(( $2 - $1 ))
+  # Valid adjacent distances
+  if [[ $DIFF -eq 1 ]] || [[ $DIFF -eq -1 ]] || [[ $DIFF -eq $MAP_WIDTH ]] || [[ $DIFF -eq $MAP_WIDTH_INV ]] ; then : ; else return 1 ; fi
+
+  # Check for left/right bounds
+  if [[ $DIFF -eq 1 ]] && [[ $(( $2 % MAP_WIDTH )) -eq 0 ]] ; then return 1 ; fi
+  if [[ $DIFF -eq -1 ]] && [[ $(( $1 % MAP_WIDTH )) -eq 0 ]] ; then return 1 ; fi
+}
+
+# Basically recurse over kv and "consume" all adjacent tiles
+# All tiles that are consumed are adjacent
+check_and_unset () {
+
+  local KV_I=${1%% *} # Remove trailing whitespace
+  (( AREA++ ))
+  VALUE=${KV_CACHE[$KV_I]}
+  unset "KV_CACHE[$KV_I]" # "Take" it
+
+  printf "max: %s peri: %s area: %s key: %s val: %s\n" "$MAX_PERI" "$PERI_NUM" "$AREA" "$1" "$VALUE" >&2
+
+  # As a square, expect width and height to always be preserved
+  # Recursion should always be in sequence
+
+  unset IFS; read -r -a VAL_ARRAY <<< "$VALUE"
+  # Loop through adjacent tiles and recurse
+  for VAL in "${VAL_ARRAY[@]}" # VAL_ARRAY is always sorted
+  do
+    VAL_IDX=${VAL%% *}
+    if [[ -v KV_CACHE[$VAL_IDX] ]] # Check if tile has been "taken"
+    then 
+      check_and_unset "$VAL_IDX"
+    fi
+  done
+}
+
+while read -r CHAR
+do
+  # Get all indexes for a plant
+  read -r -a CHAR_ARRAY <<< "$(
+    for (( i=0; i<MAP_LEN; i++ ))
+    do
+      if [[ ${MAP_ARRAY[$i]} == "$CHAR" ]]
+      then
+        printf "%s " "$i"
+      fi
+    done
+  )"
+
+  #{ 
+  #  printf "For char %s \n" "$CHAR"
+  #  printf "%s " "${CHAR_ARRAY[@]}"
+  #  printf "\n" 
+  #} >&2
+
+  declare -A KV_CACHE
+  IFS=':'; while read -r VAR1 VAR2
+  do
+    #printf "VAR1: %s VAR2: %s\n" "$VAR1" "$VAR2" >&2
+    KV_CACHE[$VAR1]=$VAR2
+  done <<< "$(
+    # Find all adjacent tiles
+    for (( i=0; i<${#CHAR_ARRAY[@]}; i++ ))
+    do
+      NUM_ADJ=0
+      printf "%s:" "${CHAR_ARRAY[i]}"
+      MIN=$(( $(( i-MAP_WIDTH )) < 0        ? 0                  : $(( i-MAP_WIDTH )) ))
+      MAX=$(( $(( i+MAP_WIDTH )) < MAP_LEN  ? $(( i+MAP_WIDTH )) : $(( MAP_LEN     )) ))
+      for (( j=MIN; j<MAX; j++ )) # There can only be MAP_WIDTH number of elements within valid range
+      do
+        if check_adjacent "${CHAR_ARRAY[i]}" "${CHAR_ARRAY[j]}"
+        then
+          printf "%s " "${CHAR_ARRAY[j]}"
+          (( NUM_ADJ++ ))
+        fi
+      done
+      printf "\n"
+      #printf "Num adj for %s idx %s is %s\n" "$CHAR" "${CHAR_ARRAY[$i]}" "$NUM_ADJ" >&2
+    done
+  )"
+
+  # Iterate through
+  for CH in "${CHAR_ARRAY[@]}"
+  do
+    CHAR=${CH%% *} # Remove trailing whitespace
+    if ! [[ -v KV_CACHE[$CHAR] ]]; then continue; fi
+    PERI_NUM=4 # Number of perimeters of a square
+    AREA=0
+    ROW=0
+    check_and_unset "$CHAR"
+    printf "char: %s max: %s peri: %s area: %s\n" "$CHAR" "$MAX_PERI" "$PERI_NUM" "$AREA" >&2
+    printf "%s\n" "$(( PERI_NUM * AREA ))"
+  done
+# Get all plants
+#done <<< "$( < "$FILE" grep -o '[A-Z]' | sort -u | grep -o '[A-Z]*' )"
+done <<< "$( < "$FILE" grep -o '[A-Z]' | sort -u | grep -o '[A-Z]*' )" |
+  paste -s -d "+" | bc

2024/day-12/test-input-1

@@ -0,0 +1,4 @@
+AAAA
+BBCD
+BBCC
+EEEC

2024/day-12/test-input-2

@@ -0,0 +1,5 @@
+OOOOO
+OXOXO
+OOOOO
+OXOXO
+OOOOO

2024/day-12/test-input-3

@@ -0,0 +1,10 @@
+RRRRIICCFF
+RRRRIICCCF
+VVRRRCCFFF
+VVRCCCJFFF
+VVVVCJJCFE
+VVIVCCJJEE
+VVIIICJJEE
+MIIIIIJJEE
+MIIISIJEEE
+MMMISSJEEE

2024/day-12/test-result-1

@@ -0,0 +1 @@
+140

2024/day-12/test-result-2

@@ -0,0 +1 @@
+772

2024/day-12/test-result-3

@@ -0,0 +1 @@
+1930

2024/day-13/solution-1.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+FILE=input
+read -r -a INPUT_ARRAY <<< "$( sed -E 's/.*X[\+\=]([0-9]+), Y[\+\=]([0-9]+)/\1 \2 /g' < "$FILE" | paste -s -d " " )"
+printf "%s\n" "${INPUT_ARRAY[@]}" >&2
+INPUT_LEN=${#INPUT_ARRAY[@]}
+
+TOTAL_TOKEN=0
+for (( i=0 ; i < INPUT_LEN; i+=6 ))
+do
+  A=${INPUT_ARRAY[i]}
+  C=${INPUT_ARRAY[i+1]}
+  B=${INPUT_ARRAY[i+2]}
+  D=${INPUT_ARRAY[i+3]}
+  X=${INPUT_ARRAY[i+4]}
+  Y=${INPUT_ARRAY[i+5]}
+
+  I=$(( ( B*Y - D*X ) / ( B*C - D*A ) )) # Button A
+  J=$(( ( X - A*I ) / B )) # Button B
+
+  TOKEN=$(( I*3 + J*1 ))
+
+  {
+    printf "Answer: I= %s, J= %s\n" "$I" "$J"
+    printf "Verify answer : %s to %s, %s to %s\n" "$(( A*I + B*J ))" "$X" "$(( C*I + D*J ))" "$Y"
+    printf "Total cost: %s\n" "$(( I*3 + J*1 ))"
+  } >&2
+
+  if ! [[ $(( A*I + B*J )) -eq $X ]]
+  then
+    continue
+  elif ! [[ $(( C*I + D*J )) -eq $Y ]]
+  then
+    continue
+  elif [[ $I -lt 1 ]] || [[ $J -lt 1 ]]
+  then
+    continue
+  elif [[ $I -gt 100 ]] || [[ $J -gt 100 ]]
+  then
+    continue
+  else
+    (( TOTAL_TOKEN+=TOKEN ))
+  fi
+done
+printf "Total token: %s\n" "$TOTAL_TOKEN"

2024/day-13/solution-2.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+
+FILE=input
+read -r -a INPUT_ARRAY <<< "$( sed -E 's/.*X[\+\=]([0-9]+), Y[\+\=]([0-9]+)/\1 \2 /g' < "$FILE" | paste -s -d " " )"
+#printf "%s\n" "${INPUT_ARRAY[@]}" >&2
+INPUT_LEN=${#INPUT_ARRAY[@]}
+
+TOTAL_TOKEN=0
+for (( i=0 ; i < INPUT_LEN; i+=6 ))
+do
+  A=${INPUT_ARRAY[i]}
+  C=${INPUT_ARRAY[i+1]}
+  B=${INPUT_ARRAY[i+2]}
+  D=${INPUT_ARRAY[i+3]}
+  X=$(( 10000000000000 + ${INPUT_ARRAY[i+4]} ))
+  Y=$(( 10000000000000 + ${INPUT_ARRAY[i+5]} ))
+
+  # Check if moduluses are eq 0 before proceeding
+  I_MODULUS=$(( (B*Y - D*X) % (B*C - D*A) ))
+  echo "I_MODULUS: $I_MODULUS"
+  if [[ $I_MODULUS -eq 0 ]]
+  then
+    I=$(( ( B*Y - D*X ) / ( B*C - D*A ) )) # Button A
+  else
+    continue
+  fi
+  J_MODULUS=$(( ( X - A*I ) % B ))
+  echo "J_MODULUS: $J_MODULUS"
+  if [[ $J_MODULUS -eq 0 ]]
+  then
+    J=$(( ( X - A*I ) / B )) # Button b
+  else
+    continue
+  fi
+
+  # Numbers have to be positive ints
+  if [[ $I -lt 1 ]] || [[ $J -lt 1 ]]
+  then
+    continue
+  fi
+
+  {
+    echo "( $B*$Y - $D*$X ) / ( $B*$C - $D*$A )" >&2 # Button A
+    echo "( $X - $A*$I ) / $B )" >&2  # Button B
+    printf "Answer: I= %s, J= %s\n" "$I" "$J"
+    printf "Verify answer : %s to %s, %s to %s\n" "$(( A*I + B*J ))" "$X" "$(( C*I + D*J ))" "$Y"
+    printf "Total cost: %s\n" "$(( I*3 + J*1 ))"
+  } >&2
+
+  TOKEN=$(( I*3 + J*1 )) # Calculate token cost
+
+  # Verify numbers with results for positions
+  if ! [[ $(( A*I + B*J )) -eq $X ]] # X position
+  then
+    continue
+  elif ! [[ $(( C*I + D*J )) -eq $Y ]] # Y position
+  then
+    continue
+  else
+    (( TOTAL_TOKEN+=TOKEN ))
+  fi
+done
+printf "Total token: %s\n" "$TOTAL_TOKEN"

2024/day-13/test-input-1

@@ -0,0 +1,15 @@
+Button A: X+94, Y+34
+Button B: X+22, Y+67
+Prize: X=8400, Y=5400
+
+Button A: X+26, Y+66
+Button B: X+67, Y+21
+Prize: X=12748, Y=12176
+
+Button A: X+17, Y+86
+Button B: X+84, Y+37
+Prize: X=7870, Y=6450
+
+Button A: X+69, Y+23
+Button B: X+27, Y+71
+Prize: X=18641, Y=10279

2024/day-14/input

@@ -0,0 +1,500 @@
+p=30,37 v=-50,-64
+p=24,42 v=55,12
+p=10,56 v=-49,82
+p=67,69 v=-58,60
+p=82,98 v=-57,61
+p=29,1 v=20,-40
+p=41,61 v=-95,92
+p=92,68 v=38,80
+p=26,82 v=58,79
+p=84,42 v=11,-45
+p=71,10 v=-76,21
+p=42,3 v=-93,-25
+p=53,102 v=93,-63
+p=33,4 v=-13,-94
+p=20,100 v=57,-32
+p=17,50 v=51,39
+p=75,41 v=-84,39
+p=83,53 v=-64,-96
+p=15,38 v=28,-72
+p=35,23 v=-9,-69
+p=26,92 v=10,56
+p=19,54 v=-42,4
+p=50,6 v=-72,28
+p=88,19 v=-90,-29
+p=11,85 v=-5,87
+p=22,22 v=-49,60
+p=70,81 v=-33,37
+p=43,47 v=-93,35
+p=5,32 v=-1,39
+p=91,70 v=96,-44
+p=10,87 v=-38,94
+p=67,6 v=32,-99
+p=54,41 v=-47,68
+p=2,59 v=-75,-53
+p=27,20 v=-46,5
+p=22,28 v=-13,-75
+p=51,29 v=99,66
+p=98,28 v=-38,-30
+p=26,53 v=-49,48
+p=39,83 v=-67,3
+p=34,59 v=-46,-57
+p=96,92 v=83,26
+p=18,70 v=59,23
+p=41,84 v=-27,-1
+p=5,40 v=-30,20
+p=86,83 v=-59,87
+p=3,76 v=12,-76
+p=49,88 v=6,83
+p=37,79 v=90,-5
+p=78,42 v=21,50
+p=78,55 v=-12,-95
+p=66,14 v=31,1
+p=53,47 v=-64,62
+p=67,18 v=-89,58
+p=87,10 v=-78,-29
+p=62,86 v=-14,91
+p=78,74 v=17,-81
+p=12,62 v=-40,45
+p=45,102 v=-91,-32
+p=38,1 v=-99,97
+p=39,81 v=55,-84
+p=43,22 v=-85,65
+p=44,30 v=43,35
+p=58,22 v=-41,-48
+p=59,35 v=-35,-45
+p=93,23 v=-24,13
+p=28,98 v=-39,96
+p=95,34 v=-27,55
+p=18,70 v=92,-27
+p=7,76 v=-11,75
+p=1,23 v=-98,-37
+p=8,87 v=-3,-70
+p=59,22 v=97,-71
+p=69,79 v=-36,-23
+p=34,82 v=-15,-35
+p=5,7 v=-36,44
+p=76,70 v=-79,-6
+p=77,36 v=13,85
+p=68,60 v=80,14
+p=13,96 v=92,94
+p=37,37 v=-93,-38
+p=1,66 v=1,11
+p=10,10 v=94,-37
+p=97,86 v=-30,-5
+p=69,11 v=-76,21
+p=30,90 v=22,-96
+p=33,26 v=-31,97
+p=48,81 v=37,-54
+p=19,37 v=72,33
+p=49,88 v=36,-69
+p=1,61 v=12,44
+p=48,83 v=-72,91
+p=39,6 v=-56,-55
+p=94,98 v=44,-70
+p=68,60 v=95,-99
+p=44,52 v=-83,-61
+p=44,81 v=89,51
+p=4,44 v=36,-7
+p=17,9 v=-77,-93
+p=35,77 v=53,38
+p=60,79 v=86,-81
+p=16,81 v=85,69
+p=54,10 v=-2,36
+p=55,73 v=-43,-42
+p=20,86 v=-11,-47
+p=57,32 v=3,88
+p=82,66 v=89,-42
+p=90,4 v=-59,-55
+p=8,20 v=-76,69
+p=18,77 v=-79,-65
+p=100,29 v=-24,66
+p=22,3 v=-44,-47
+p=52,49 v=-90,68
+p=16,72 v=45,31
+p=57,99 v=33,-82
+p=51,56 v=16,9
+p=28,90 v=88,-74
+p=76,24 v=-43,-10
+p=21,31 v=-36,-90
+p=68,99 v=27,-40
+p=0,84 v=69,83
+p=100,88 v=-97,32
+p=65,52 v=85,-4
+p=31,61 v=-76,71
+p=75,101 v=-70,55
+p=43,17 v=74,-33
+p=56,89 v=62,-54
+p=3,50 v=-96,69
+p=77,70 v=-49,53
+p=69,69 v=-78,72
+p=76,78 v=54,-8
+p=32,75 v=-34,-11
+p=42,100 v=47,75
+p=70,28 v=97,4
+p=88,42 v=75,39
+p=64,20 v=-74,89
+p=78,17 v=-72,-98
+p=14,79 v=30,26
+p=47,50 v=16,38
+p=21,75 v=59,-73
+p=82,74 v=81,30
+p=25,62 v=11,-1
+p=94,83 v=67,40
+p=82,62 v=16,-5
+p=26,97 v=67,50
+p=6,77 v=-44,72
+p=76,94 v=-17,77
+p=55,27 v=-62,-75
+p=86,14 v=-90,-97
+p=51,66 v=78,-20
+p=21,68 v=22,87
+p=50,83 v=-68,-8
+p=52,81 v=3,-8
+p=10,82 v=36,-35
+p=99,10 v=38,-65
+p=56,61 v=-67,-55
+p=46,39 v=-60,73
+p=65,64 v=29,-65
+p=11,5 v=91,-12
+p=93,69 v=38,57
+p=62,56 v=-68,61
+p=31,86 v=-48,79
+p=94,17 v=-90,86
+p=71,37 v=-91,35
+p=97,48 v=58,-69
+p=95,11 v=75,-52
+p=37,62 v=-87,38
+p=63,76 v=97,41
+p=9,74 v=78,-52
+p=13,87 v=96,83
+p=26,50 v=-46,-69
+p=8,68 v=-43,-62
+p=45,9 v=39,-2
+p=29,79 v=-19,87
+p=56,5 v=11,-16
+p=92,68 v=25,99
+p=98,2 v=-63,-13
+p=29,102 v=-93,-36
+p=73,9 v=56,-28
+p=36,66 v=-83,-46
+p=94,80 v=-43,-38
+p=53,79 v=23,97
+p=50,10 v=-91,-37
+p=14,43 v=98,-49
+p=3,78 v=78,-1
+p=46,46 v=-31,-31
+p=94,101 v=38,-70
+p=56,23 v=-37,9
+p=50,66 v=38,91
+p=70,26 v=17,-34
+p=7,92 v=7,-76
+p=75,36 v=-45,-30
+p=71,0 v=62,-51
+p=72,92 v=12,9
+p=34,39 v=84,84
+p=73,88 v=-39,-26
+p=51,81 v=-68,64
+p=24,82 v=61,4
+p=32,2 v=86,86
+p=50,102 v=-30,-12
+p=98,26 v=-67,14
+p=96,88 v=35,-83
+p=43,53 v=12,-99
+p=77,50 v=56,-72
+p=7,50 v=66,92
+p=70,66 v=-6,38
+p=60,29 v=-70,-33
+p=70,11 v=89,24
+p=93,58 v=-19,-74
+p=96,68 v=98,30
+p=70,68 v=-43,38
+p=24,99 v=53,-28
+p=98,38 v=-74,-9
+p=69,49 v=-76,-23
+p=9,75 v=-69,64
+p=41,19 v=14,-71
+p=0,23 v=38,-71
+p=1,56 v=36,-23
+p=55,52 v=-99,31
+p=85,85 v=-22,75
+p=18,78 v=69,-27
+p=7,96 v=90,-89
+p=96,85 v=40,-70
+p=7,80 v=-92,87
+p=81,6 v=46,-17
+p=44,71 v=10,-19
+p=12,72 v=73,-4
+p=33,86 v=14,67
+p=84,94 v=52,-24
+p=34,66 v=-56,-65
+p=31,60 v=-85,88
+p=65,0 v=-35,-97
+p=76,83 v=-12,60
+p=15,29 v=64,-59
+p=71,45 v=-68,43
+p=19,77 v=92,95
+p=6,85 v=-38,79
+p=1,27 v=-59,33
+p=38,12 v=-89,-10
+p=45,27 v=51,66
+p=23,100 v=-13,-70
+p=18,43 v=-35,-59
+p=63,28 v=72,-72
+p=42,7 v=83,-5
+p=28,99 v=29,-43
+p=96,38 v=11,39
+p=47,97 v=74,56
+p=81,27 v=87,-64
+p=63,6 v=39,93
+p=15,43 v=-48,19
+p=6,21 v=12,-65
+p=52,70 v=-85,-14
+p=96,53 v=-55,8
+p=3,77 v=-98,-20
+p=76,54 v=-86,-95
+p=85,77 v=-49,-72
+p=96,46 v=-84,39
+p=42,79 v=-93,68
+p=46,59 v=-17,7
+p=52,16 v=-66,32
+p=12,70 v=67,23
+p=52,7 v=-21,67
+p=13,62 v=-5,95
+p=25,63 v=-83,19
+p=91,25 v=54,24
+p=28,9 v=-5,71
+p=73,1 v=89,82
+p=71,22 v=83,82
+p=37,40 v=90,66
+p=8,91 v=-3,-85
+p=53,66 v=6,38
+p=14,94 v=59,10
+p=81,17 v=-12,-22
+p=82,72 v=-20,-88
+p=36,90 v=-47,-80
+p=26,91 v=-77,-70
+p=73,91 v=23,-40
+p=76,68 v=21,53
+p=64,30 v=-82,55
+p=7,97 v=1,-13
+p=69,87 v=57,-28
+p=19,65 v=92,31
+p=66,50 v=97,-53
+p=86,54 v=13,84
+p=23,51 v=-48,46
+p=97,39 v=-61,-7
+p=6,2 v=57,-42
+p=51,71 v=-20,40
+p=65,17 v=-76,-25
+p=62,12 v=-14,-59
+p=16,31 v=30,85
+p=55,12 v=16,-23
+p=22,45 v=96,-87
+p=8,97 v=95,14
+p=73,91 v=-96,-89
+p=35,32 v=-50,-34
+p=19,78 v=68,-89
+p=88,23 v=-56,-58
+p=63,20 v=74,29
+p=81,79 v=-10,57
+p=11,57 v=-40,-42
+p=24,69 v=-83,-12
+p=41,7 v=19,69
+p=3,101 v=25,69
+p=5,67 v=38,-88
+p=66,50 v=-47,39
+p=59,32 v=-93,16
+p=71,48 v=45,-82
+p=23,76 v=-46,83
+p=27,9 v=-15,-78
+p=39,57 v=99,-63
+p=64,48 v=-39,-88
+p=100,24 v=-78,-61
+p=83,8 v=-88,-89
+p=74,2 v=64,-65
+p=58,54 v=-2,57
+p=69,98 v=-66,-97
+p=12,49 v=-69,27
+p=66,9 v=60,-97
+p=34,47 v=72,-26
+p=48,4 v=66,62
+p=64,22 v=-10,13
+p=87,42 v=23,-87
+p=32,67 v=6,-73
+p=44,77 v=-1,-5
+p=19,44 v=86,80
+p=77,82 v=-86,3
+p=90,99 v=43,-43
+p=77,32 v=-28,-26
+p=78,7 v=-14,2
+p=15,69 v=-44,-69
+p=80,23 v=-39,-74
+p=93,39 v=-56,78
+p=75,51 v=-47,-3
+p=47,20 v=74,1
+p=33,85 v=39,-47
+p=33,2 v=36,50
+p=46,43 v=81,-11
+p=47,100 v=-62,-74
+p=14,31 v=87,-78
+p=63,56 v=41,43
+p=80,57 v=41,47
+p=57,26 v=2,12
+p=56,25 v=5,-95
+p=50,40 v=-66,35
+p=67,30 v=27,-35
+p=38,33 v=42,-10
+p=12,4 v=28,59
+p=2,48 v=54,30
+p=10,8 v=88,-33
+p=34,79 v=14,-35
+p=52,99 v=60,14
+p=25,66 v=-13,-50
+p=94,44 v=7,-30
+p=45,50 v=35,-30
+p=72,96 v=-88,52
+p=91,56 v=-24,19
+p=83,92 v=17,-28
+p=64,28 v=95,31
+p=34,44 v=49,4
+p=32,55 v=-52,-80
+p=11,25 v=40,35
+p=80,2 v=-6,-74
+p=83,27 v=-48,61
+p=23,53 v=-3,-92
+p=60,44 v=-65,-48
+p=46,102 v=-25,-97
+p=8,6 v=-36,-2
+p=87,88 v=13,18
+p=40,84 v=-33,53
+p=13,7 v=28,-78
+p=60,10 v=27,21
+p=92,50 v=44,4
+p=81,55 v=-51,-76
+p=9,102 v=32,-2
+p=65,42 v=-6,54
+p=9,96 v=-34,71
+p=34,94 v=-87,94
+p=74,62 v=90,-52
+p=51,8 v=61,48
+p=45,27 v=70,5
+p=15,74 v=51,-62
+p=92,49 v=83,-22
+p=4,23 v=-28,32
+p=30,54 v=41,-57
+p=70,65 v=27,-4
+p=39,43 v=-56,-38
+p=68,75 v=-78,3
+p=71,58 v=60,-65
+p=7,73 v=98,49
+p=7,54 v=-89,96
+p=77,45 v=81,43
+p=88,76 v=-37,13
+p=62,41 v=99,39
+p=65,76 v=77,52
+p=72,97 v=-43,25
+p=60,30 v=99,5
+p=25,35 v=-23,-53
+p=84,24 v=-88,-60
+p=41,0 v=20,6
+p=78,52 v=-18,-72
+p=68,65 v=95,19
+p=11,40 v=90,-56
+p=69,40 v=35,58
+p=82,44 v=13,-7
+p=32,23 v=-21,32
+p=61,8 v=68,-63
+p=81,5 v=85,-74
+p=55,67 v=66,57
+p=15,6 v=71,-63
+p=29,93 v=-32,72
+p=51,31 v=-20,45
+p=45,63 v=37,19
+p=56,92 v=-37,-43
+p=57,44 v=4,16
+p=29,11 v=-50,93
+p=8,1 v=42,-17
+p=77,71 v=97,76
+p=98,97 v=43,-84
+p=71,51 v=-42,72
+p=4,24 v=92,-10
+p=37,71 v=14,-88
+p=2,0 v=71,86
+p=94,71 v=7,30
+p=95,22 v=-44,-56
+p=13,58 v=96,-4
+p=10,75 v=-47,74
+p=91,27 v=32,-68
+p=94,31 v=48,-56
+p=21,48 v=47,23
+p=98,78 v=-73,79
+p=69,66 v=-76,49
+p=87,67 v=78,60
+p=56,32 v=37,-29
+p=75,1 v=-72,88
+p=90,71 v=-64,-50
+p=63,58 v=27,-40
+p=0,27 v=-20,-25
+p=32,4 v=-87,36
+p=68,51 v=-78,-76
+p=80,78 v=-82,-77
+p=33,7 v=47,-44
+p=42,98 v=80,75
+p=44,97 v=-19,17
+p=91,63 v=-33,98
+p=60,48 v=75,92
+p=41,32 v=-14,-84
+p=7,29 v=-42,-11
+p=2,70 v=-63,87
+p=85,48 v=-16,-34
+p=5,54 v=-82,51
+p=56,95 v=-61,-62
+p=5,57 v=-57,69
+p=80,14 v=-82,-71
+p=30,72 v=-52,-92
+p=70,49 v=-41,27
+p=71,82 v=60,-1
+p=71,9 v=25,97
+p=100,101 v=91,-57
+p=5,48 v=44,38
+p=95,75 v=65,83
+p=34,47 v=-29,27
+p=89,82 v=19,34
+p=76,92 v=-29,-2
+p=71,92 v=81,-70
+p=17,68 v=90,-8
+p=71,44 v=96,32
+p=57,25 v=-10,54
+p=75,67 v=-16,-62
+p=46,87 v=-37,41
+p=74,98 v=97,78
+p=30,22 v=72,-38
+p=41,17 v=-23,-21
+p=67,34 v=85,61
+p=63,58 v=31,42
+p=96,5 v=-94,-17
+p=64,102 v=99,29
+p=99,39 v=-63,27
+p=16,84 v=-40,-24
+p=22,19 v=55,2
+p=70,76 v=-98,-46
+p=16,46 v=-40,16
+p=37,10 v=7,-28
+p=59,49 v=3,-90
+p=38,38 v=-79,8
+p=43,85 v=45,-58
+p=99,23 v=-26,24
+p=45,69 v=-70,-62
+p=44,22 v=-73,21
+p=24,17 v=-10,43
+p=61,90 v=-70,98
+p=69,65 v=-14,-81
+p=23,93 v=-6,-99
+p=80,30 v=-25,-25
+p=31,53 v=-91,-92
+p=45,2 v=78,21
+p=50,47 v=-87,-45
+p=32,86 v=84,-62
+p=47,81 v=97,-92
+p=99,95 v=78,-66

2024/day-14/solution-1.sh

@@ -0,0 +1,113 @@
+#!/usr/bin/env/bash
+
+FILE=input
+MAP_WIDTH=101
+MAP_HEIGHT=103
+MEDIAN_WIDTH=$(( MAP_WIDTH / 2 - 1 ))
+if [[ $(( MAP_WIDTH % 2 )) -eq 1 ]]
+then
+  (( MEDIAN_WIDTH++ ))
+fi
+MEDIAN_HEIGHT=$(( MAP_HEIGHT / 2 - 1 ))
+if [[ $(( MAP_HEIGHT % 2 )) -eq 1 ]]
+then
+  (( MEDIAN_HEIGHT++ ))
+fi
+printf "Median width: %s, median height: %s\n" "$MEDIAN_WIDTH" "$MEDIAN_HEIGHT"
+
+# Load bot positions and velocities
+read -r -a BOT_ARRAY <<< "$( grep -Eo '[-0-9]*' "$FILE" | paste -s -d " " )"
+#printf "%s " "${BOT_ARRAY[@]}"
+#printf "\n"
+printf "Bot array size: %s\n" "${#BOT_ARRAY[@]}"
+
+# Just move forward n seconds for every bot and save 
+# final positions
+IFS=';'; read -r -a FINAL_ARRAY <<< "$(
+  SECONDS=100
+  for (( i=0; i<${#BOT_ARRAY[@]}; i+=4 )) 
+  do
+    PX=${BOT_ARRAY[i]}
+    PY=${BOT_ARRAY[i+1]}
+    VX=${BOT_ARRAY[i+2]}
+    VY=${BOT_ARRAY[i+3]}
+    FINAL_X=$(( PX + ( VX * SECONDS ) ))
+    FINAL_Y=$(( PY + ( VY * SECONDS ) ))
+    printf "%s %s;" "$FINAL_X" "$FINAL_Y"
+  done <<< "${BOT_ARRAY[@]}"
+)"
+unset IFS
+#printf "%s\n" "${FINAL_ARRAY[@]}" | head
+printf "Final array size: %s\n" "${#FINAL_ARRAY[@]}"
+
+# Get number of robots in each quadrant
+Q1=0
+Q2=0
+Q3=0
+Q4=0
+ITER=9999
+while read -r RAW_X RAW_Y
+do
+
+  # Adjust positions to be on map
+  PX=$(( RAW_X % MAP_WIDTH ))
+  if [[ $PX -lt 0 ]]
+  then
+    PX=$(( MAP_WIDTH + PX ))
+  fi
+  PY=$(( RAW_Y % MAP_HEIGHT ))
+  if [[ $PY -lt 0 ]]
+  then
+    PY=$(( MAP_HEIGHT + PY ))
+  fi
+
+  # Check if negative positions, should not happen
+  if [[ $PX -lt 0 ]] || [[ $PY -lt 0 ]]
+  then
+    printf "Negative final position. PX: %s PY: %s\n" "$PX" "$PY"
+  fi
+  if [[ $PX -ge $MAP_WIDTH ]] || [[ $PY -ge $MAP_HEIGHT ]]
+  then
+    printf "Out of bounds. PX: %s PY: %s\n" "$PX" "$PY"
+  fi
+  printf "PX: %s PY: %s\n" "$PX" "$PY"
+
+  # Allocate robot to quadrant
+  if \
+    [[ $PX -ge 0 ]] && \
+    [[ $PX -lt $MEDIAN_WIDTH ]] && \
+    [[ $PY -ge 0 ]] && \
+    [[ $PY -lt $MEDIAN_HEIGHT ]] # Q1
+  then
+    (( Q1++ ))
+  elif \
+    [[ $PX -gt $MEDIAN_WIDTH ]] && \
+    [[ $PX -lt $MAP_WIDTH ]] && \
+    [[ $PY -ge 0 ]] && \
+    [[ $PY -lt $MEDIAN_HEIGHT ]] # Q2
+  then
+    (( Q2++ ))
+  elif \
+    [[ $PX -ge 0 ]] && \
+    [[ $PX -lt $MEDIAN_WIDTH ]] && \
+    [[ $PY -gt $MEDIAN_HEIGHT ]] && \
+    [[ $PY -lt $MAP_HEIGHT ]] # Q3
+  then
+    (( Q3++ ))
+  elif \
+    [[ $PX -gt $MEDIAN_WIDTH ]] && \
+    [[ $PX -lt $MAP_WIDTH ]] && \
+    [[ $PY -gt $MEDIAN_HEIGHT ]] && \
+    [[ $PY -lt $MAP_HEIGHT ]] # Q4
+  then
+    (( Q4++ ))
+  else
+    printf "Skipped in the median. PX: %s PY: %s\n" "$PX" "$PY"
+  fi
+  (( ITER-- ))
+  if [[ $ITER -eq 0 ]] ; then break ; fi
+done <<< "$( printf "%s\n" "${FINAL_ARRAY[@]}" )"
+
+# Calculate safety factor
+SAFETY_FACTOR=$(( Q1 * Q2 * Q3 * Q4 ))
+printf "Safety factor: %s\n" "$SAFETY_FACTOR"

2024/day-14/solution-2.sh

@@ -0,0 +1,87 @@
+#!/usr/bin/env/bash
+
+FILE=input
+MAP_WIDTH=101
+MAP_HEIGHT=103
+MEDIAN_WIDTH=$(( MAP_WIDTH / 2 - 1 ))
+if [[ $(( MAP_WIDTH % 2 )) -eq 1 ]]
+then
+  (( MEDIAN_WIDTH++ ))
+fi
+MEDIAN_HEIGHT=$(( MAP_HEIGHT / 2 - 1 ))
+if [[ $(( MAP_HEIGHT % 2 )) -eq 1 ]]
+then
+  (( MEDIAN_HEIGHT++ ))
+fi
+printf "Median width: %s, median height: %s\n" "$MEDIAN_WIDTH" "$MEDIAN_HEIGHT"
+
+# Load bot positions and velocities
+read -r -a BOT_ARRAY <<< "$( grep -Eo '[-0-9]*' "$FILE" | paste -s -d " " )"
+#printf "%s " "${BOT_ARRAY[@]}"
+#printf "\n"
+printf "Bot array size: %s\n" "${#BOT_ARRAY[@]}"
+
+# Load arrangements for every second
+#for SECONDS in $( seq 1 9999 )
+for SECONDS in $( seq 6514 6516 )
+do
+  # Compute positions for each bot
+  printf "Working on +%s seconds.\n" "$SECONDS"
+  IFS=';'; read -r -a FINAL_ARRAY <<< "$(
+    for (( i=0; i<${#BOT_ARRAY[@]}; i+=4 )) 
+    do
+      PX=${BOT_ARRAY[i]}
+      PY=${BOT_ARRAY[i+1]}
+      VX=${BOT_ARRAY[i+2]}
+      VY=${BOT_ARRAY[i+3]}
+      FINAL_X=$(( PX + ( VX * SECONDS ) ))
+      FINAL_Y=$(( PY + ( VY * SECONDS ) ))
+      printf "%s %s;" "$FINAL_X" "$FINAL_Y"
+    done <<< "${BOT_ARRAY[@]}"
+  )"
+  unset IFS
+
+  # Generate "empty" map
+  # Map is a 1d array
+  MAP_LEN=$(( MAP_HEIGHT * MAP_WIDTH ))
+  read -r -a MAP_ARRAY <<< "$( 
+    for (( i=0; i<MAP_LEN; i++ ))
+    do
+      printf ". "
+    done
+  )"
+
+  # Calculate and map bot positions on the map
+  while read -r RAW_X RAW_Y
+  do
+  
+    # Adjust positions to be on map
+    PX=$(( RAW_X % MAP_WIDTH ))
+    if [[ $PX -lt 0 ]]
+    then
+      PX=$(( MAP_WIDTH + PX ))
+    fi
+    PY=$(( RAW_Y % MAP_HEIGHT ))
+    if [[ $PY -lt 0 ]]
+    then
+      PY=$(( MAP_HEIGHT + PY ))
+    fi
+
+    # Calculate serial position and mark it
+    POSITION=$(( PX + (PY -1)*MAP_WIDTH ))
+    MAP_ARRAY[POSITION]=X
+  
+  done <<< "$( printf "%s\n" "${FINAL_ARRAY[@]}" )"
+
+  # Print out map for manual review
+  #printf "%s" "${MAP_ARRAY[@]}" | fold -w $(( MAP_WIDTH )) | grep -o 'XXXXXXXXXX' && break
+  printf "%s" "${MAP_ARRAY[@]}" | fold -w $(( MAP_WIDTH ))
+  printf "\n"
+
+  printf "Final array length: %s, map array length: %s\n" "${#FINAL_ARRAY[@]}" "${#MAP_ARRAY[@]}"
+  printf "\n"
+
+  # Reset for next run
+  unset MAP_ARRAY
+  unset FINAL_ARRAY
+done

2024/day-15/input-map

@@ -0,0 +1,50 @@
+##################################################
+#...O.O..O..O...O..........O.O.O.O.....O..O.#.O#.#
+#...O.OO.O.......O#.......O.OO....O.#..#...OOO#..#
+#O..O....O.O.O.O..O.OOO...O.OO......O....#O.....##
+#OO.#O.........OOO....OO....O.O.O..#......OO.O...#
+#OO........OOO#O..#O..OOO...O.O.O..OO.#OOOO...#.##
+#....#.O.......O.#....OOOO.O..O..O.O##...O....#O##
+#.....OOO....O..........O...OO......OO.OO#O...OO.#
+#OO.O....O...OO.O.##....OOO.O...O...............##
+#O.....O.....#.....#..O..#O.O.O..OO#O..O.OOO...O.#
+#.O....O....O..O.O...#.O..O....O.O..O..O.....O...#
+#.O.O.....OO.OOOO.O...#O..........O...#.#OO....O.#
+#O..O.O.O..O.O....OOO..O#..O.O.O......#O..O.O.#O##
+#..O#...O.OO.....#O..O..O....OOOO.O...#OOO..#.#.O#
+#.O.....O#.............#.#..OO...OOO....O....OO###
+#.#OO....OO..O#....OO..O#...OO..........O...OO...#
+#.O.O.....OO.....O.OO.O#...O..O..O...O....O......#
+#.O..O....O..O.....#O.O..O.....O..#O...OOOO.O...O#
+#O...O....O.OOOO...OO.........O#..#.....#O.O#O#.O#
+##...OO...O.....O..O#O...O.........O.#...#..#....#
+#OOOO.OO.#...OO.#..O..#O...........OOOO.OO.O....O#
+#....O..O.O.OO..O#......#.....OO..OO...O........##
+#.O.#....#..........#..OO....OO....##........O.OO#
+#..O.O..#.....O##O.O....OO......#O....O....#.....#
+#....OO.OO#..OO..O.#....@#O.OOO.O..OO#...#O.OO...#
+#..O.....O.........O.O........O#O......O.......O.#
+#O.............O....#O.......O..#..#O.O.O...#....#
+##...O...OOO..OO..OO.........OOOOO..O.O.O.OO..O.O#
+#.#.OOO......#.O..OO.#...O#.O....O..#...#.O......#
+#O.O..........O..O...O..OO....O#.O....O.OOO....#.#
+#.O.#..OO.OO#..........#.O...O.OO.....O......O.O.#
+#.......OO.O.#O..OO.OOO.O........O.............OO#
+#O..OOO.#.OO.O.O.....O...O.O..OO.O...O#O##O..O...#
+#O.#.O.#O....O..O......O.##O.OOO..O.OOO.O...#....#
+#.#........O.OO...#.O...O.....O.##...#.O.OO.O..#O#
+#..OO..O....#..O.O#O..O...#O...O#.O.O.O.O...O.#..#
+#O.......O#.#O..O#..O..O...#.#.O...........OO....#
+#O....................OO.O...O......#..#.OO......#
+#OO#..O#....O.OOO.....OOO..#.O..#OO.#....#O.O.O..#
+#.O..O.......O.O....#.O...OO....O.OOO...#........#
+#.......O...#.....###...O.OO.....O...##..O.#...O.#
+#.O.#O...O...O.O#.#..#.#O..O.OO...O#...OOOO.O...O#
+##..OO..........O...O.#...OO#O...#O..O..O........#
+#...O..O.OO...#O..O#....O....#......OOOO.O...O.O.#
+#..O.O...O.O.#O..O.O..#.O.O.......#....O....O.O..#
+#O.O.#.OO.....O.........O.##..OO...#.O..O........#
+#O..O.OOO..#....O.O#O.O..O......O...O#.OOO.O.O.O.#
+#.O....##.##O.O.OO##.O...O....#...#.OO.....O...O.#
+#OOO.....#...OOO.O..OOO..O...O......#.O...O..##.O#
+##################################################

2024/day-15/input-movements

@@ -0,0 +1,20 @@
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+vv<><<>^<>>>^<^<v^<v<^<>>vv>>v^><<>v>^<v><>v<>^v<<>>v><v>><v^^^<^<v<<<>^v<><<^^<vvv^>>>>v^<<<^><<v><>v<^^>v<<^v^^^^<<^vv^>>vv<<<^^<^^v^>v>v<^<v^v^><>^<<v>^v>v^<v>^<v<v^^<<>v^>v^v><<v^^v><<>vv><v<>v^>^vv^><<^vv^v<<<^>v<>v<><><<v^v<^v^v^>>v>v^^<^^<>>>vv<v<><>><>>^v^><<^^^<<<vv><<>^<<<><<<vv^>vv^vv^vv>^v<<v<^><^^vv>^v^<<v>>>v<<vv><vv<v^<vvv>vv>>>>>^v>>^>^><^>v><v^v^^^^<><v^>v<vvv^^<vv<><><>^<><v><^<<v<<v><v<>><<>v^v<><^<vv^v><<^v^<<<>>^>><>v>^><^>v<^<><^vv<>^<<><v<vv><>>>>^^v<>v<^v^v><^<^^^^<^<^<>^v>v^<^<<^v><>>^>>vv>>^>v^v<>^v^<<vv>vv><^v>><>^^>>v^^^<><>^^^^^^vv^^>>>v^><^^^v>^v<^v^v<^^>>>v^>^<<v<v^v^>^^^<><><v>^vv<vvv^<v<<^^<^^><v<<vvv^^<<v^^v>^^^v<<^<v<v>v^v<<vvv^v<^<^<>^v<<<vv^>v<^>^^^>><^v^v^<>^^^><>^^v<>vv^<v^<^v<^><v>v>>^><>v<<<>^v>><<^>>v^<^>><v>^>^^^<v^^>^v<^^>^vv<^^v><>><<><><<v>>v<v^<^^v>v^<vv<<<>^v^vv><<<^<<>v>v^^>>v>^^^^^<v^>^>>>><>>^v>v^^>><^<<v^<v<^v^v<>^<v<<>^>vvv>v<<>vv<v^>v<v<v^v^v^vv<vv^^vvv<v>^<>^>^<^<v><><>^>^>v<<v>^vvv>^^^><^>v><<>^^<^vvvv^^<v^v><<vvvv^^<v>><>v>><<^vv
+v><^vv^<<>v^v>>v>><v<>^vvv^v>>^v<^<^<vv<<<>><>^v>><>v<v^<>v^v<>v>><>v>^vv<^<^v^v>^^^^vv<^>^>><>v>^^vvv^<^^>^v^<v^^<<><^v>vvvv^^v<>v>v^>v>^<vvvv>^vv>^<v^<>v^<v<^<><<>><v>v>>>v^>><<^>^v^>>>^<>><>v<<v<v<<>>v><^v>v^vv<<><^<^v><>vvv>>>>>v><<v><^<><^>v^>^^>vv^v^>>>^v>^<v<>vv><^v><^>^<^><<vvvvv>>><^>^<<><^v<<>^<<v>vvvv<v>^<><v<^>>^^<><<v^<>>>^v><v^<<>^v^>>vvvv^<v<><^>>>>^^<<>^v>v^<v>^vv<>^^v^>^<v^>^<<v^<>><^<^v<<>>v><^v^>v>^>>v^<v^<^<^>v^<v>v<v<v>vv<v<vv>><v>v<<>v<^^><vv^^><<^><<<<><v><^vvv>>vv>^^vvv<<v^^<v^>><vv>v>^v><>^>>v^>>v^^v>><^^vv>vvv<>>>^^>vv^vv>v>v^>>^^<<<>^>v>v>>v^>><>>>^^>>v>^>^v<<><<<v><>vv<v^<<>>v<^v>v<<>v^vv^v^^^^<<<<<<<<^^>^>^v^v^^<vv<>^>v<^v^><<v<>><^<>^<<>^v^^v<<<>vvv<>v><vv<^^^v^vvv^vv<v><^v>>^vv>vv^v^>vv<^v^vv>^<<<vv^v<><v><<^>><><^>>v^><<>v><^^v<vv<^vvv><v<><>>><<v^^v^><<vvv^>v<^v>^^<^^v<>vv><><>^><v^v^^^>v>v>>^vv<<^v^^vv>><^^<^><^>>^^>^><^<^^>v>vvv><>^<>^<>v^<<^<^<^^v^<>v^^>v^>>>^<^vvv>>^^<v^^>^<>>v>><v<v>^^^^^^^><v<v^^<>v^>>^>v^>vv>^<>^<vvv><<v<<>>>v^<>vv^v^<^<<^v<<><v<
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+<<^<vv>^^>v^^>^vv<^<<vv^><<^><<>v>v>>v><>><^>>v<v>v>v^>><^>v>^^><^>^<><^<v^<<<^<<^<><<>^v><<^^<^<v<>v<^<^v^^v^>v<>v><v>>>^^vv^><v>v>v^<v^v<^^><^^^>^>^^>^>>>v<<^>vv<><v<<<^v<<<>^v><v^vv>v^vv^^v^<<<<<>><>><>^>>v<v^<^><^<vv<v<^<><<v<v^v<^^^>><><>^v><^^v>^<v>vv<^v^><v<^v<><^v^^>>>>>^^<>^^^^><<vvv^^^<v<<v<<<<<^<<^<v^<<<<v^>vvv<>><<^^v>>v^v>>v><>><^v^vvvvv>^<vv><>>^v^v>>v>><<><v^^v<<^<<^^>^>^<<<<v<vv<v^<v>^^>^^v^<v^v^<><^>>^<><<>v<<<^>v<<<v>^^><><<v>v^v^<^^v<^>v^<^v><^^v><>^<>v^^<v<^>>^vv<>^<v^><^vvv^^>^><>^>^vv^v>v><v^<v><><>^<v<v>^vvv><>>^^^<<<^>vvv>vv<v>^vv<<>>>^^<vv>>^><>><v^<>^^vvv^vv><v^<^v<v^^<^><^^<<>>v>^^<^^^>^>v><v^v<<<<>v<><<<<<^^>^<v<>vv^>>><v>>vvvv>^>>v^>>><>v>^><^><<>v^>>>>v>^v^<<>>^v<^>v^^^>v><^><^^vvvv>^<<><>v<v><>><v^v^v<><<v<>v^>>^^v<v<<vv>>>>v^v>^v>v<><vvv>^^<v^v><<vvv<>v^<^v<>^>><>vv<>>^v^<^v<v<^>^vv<vvv<>v^<<<>^^^v^v><v><vv<v^^^^vv>>^<vv^v>vv>v^><<><^^^<v^<v>>^^^><<<<<>^^><<<><><v>><v>>v<^v^<v^vv<<^<<<>^<^><>><^>v^v<v<^^<<<<<>^<>>>>^vv^<>v<><<^^><<>^<>^><>>vvv^>vv<>><>><
+>vv<^^^vvvvv<v>><>v><<v^><<>v<>^>>v>^>><^<^<^v<vv<^<<^^v>>^<>>^^>><^<^<<v>v><<<vvv^vvv^^>^><<<v>>^>^v^vv^<vv^<^>^^^^v^>^>^>><>>>v>v^>>^<^v<v<<<<v^v^^^v<<>v>>v^^^v^>^v>>v^<><^v<^<<<^>vv^^<<>^v>^v<<^<^^^<<>^<>^vv><>><>>^<v^v<>>^v<v^>^<<<^<<<><>><>v>^<<v<vv^v<><v^^^><<^>><>>v<<v<^^^^>>v>^>^v<<>>vvv<^<>>>^v^v<^>^^^^^^v<v>>>>v^^v^<><>^>^<^^vv^>v<>v^>vv<^^><<^<>vv>^v>>><<^<^^><>vv<<>>><<v<<<<><>^>>^<<>^<v>^<v<^^>^^>>>>^<v^<v<^<<v<<>v<^<vv<<<<^^>^<<^^<<v^v>v^^>^v^>>^v>>v>>><>vv<v^^v>^v<^vv^^^<<^v><>^v><<><vv^>^^^>>>v<^<^><<^^<<^^><<v<<><^v>^v^<^<^<>^^<^v^>v>>vv<<<v<<>v<>^<^v<>^v<v<<>>>v<v>^>^v^>>v<><^^^<^>><^>>^<^^^^<>v^^><^^><v^^v><v^^v^v<v<<^>><<<<v^<v<<v>>>^><<vvv<<^v^v<<<<<<<^>v<<vv^^<<^^^vv<vv^>^<><><><^<<<<<vv>v^v<<<^<vv^vv>^<v<^<^^^^>^<>^>v<^>^^^<^^><>^<<v<>^>^^v>v>>>^<^>v^>v<<vvv<>^^<^vvvv>v^><>^^><^^<>><^<v<^>>v>vv>>^><^^><vv^>^>^<<v^v><v>^^v>><>^<v<^<<>^<^<<<<>^v^v<v>^<^^<v<<<vv>v^<v<><^v<<^^>>v<>v>>v>>v<<>^v^^^vv^v<^^^>^<<>v^^v^^<v>>>>v<v>^vv<<<v^>><^>>^v^>vv<<>>><<v<>v<v<<v>><><<<
+<vvv><v<<<^<v<>>><<>>v^^<v^vv><<>v<^<><<<>><^v^<v<<><<<>>vv<^^<>^<^^>^^<v<<^v<>^^v^><^>v<><^^^^<<<><<<^>^^>^v>^<><v<v>v^<>>>^v<<>v><vv><^><<>v^v>v^v^vv<^>^<vv^v^vv>^<<<<<^v><^^^v<v^^vvvv>^><>>>vvv^><><>>^>^>>^v>>vv<v^^>v><<<>>^<>>>vvv<><<>>^<<><>>v^<>^>v^v<v>v<<>v>v^>^v^>^><^^>^><^>v>^<<<>v<^><>^<>><^<<>^^^v^<^vv>>><<>^<^vv<vv^>v>^^><><vvv<^>^>>v>vv<<v<v>vv<vv<v^>^vv^>vvvvv>v<v>^<>^v>>>^^>v<<<vv<vv>^<>><^vv^<<>>vv>v^<^v^>><vv>v<v>v><>^^^^^v^>><^v<<v<v>vv<v^^<vv^>^^^>><><<v>>>v<>>vv<<<v<^><<<>^<^<^^<>>^vvv<<<v>>vv<><>>^>vv>^v><v^>><<^^>><<v>^<^v<<<>v^<^<<^^<<>>^^<<<^<vv>><^>vv><^>vv>v>^v<<^<^v>^<>>>^^^<v^<>v>vvv^>><<^^>^v<^vv>^vv<>^<v<><v<>>>>^><<<<^v^>v<^v^^vv^vv>vv>^>^>^<vv>>^^v^<<<>><>v<vv<vv^<><v^vv<^<v^^^v^vv^v<><^<<<>vv^>^<^v^v>><^><^^^>vv><^^v<v^<<<v^<^^^^^<<^>^^<v><<v^<v<^>>>^v>>v>^<^^>>v<>^vvv^<^<<<v>>v^>>><<v><^>>vv>^v>><><^>vvv>^v>^>>>^^^vv<<^vvv^^v>^^v^<<>v>v>>^^v^>v>><<v>^^^^v<^^<<<>><v^<><<<><v><^v^>^>v^>>>v>^^>>v<v>^^v>^vv^<<<>^<<^v<^>>>^v^v^>v<^^^>v><<^v<<<^v^^<^v^^<<<v>
+^<<>^><^<<>vv><>v<>vv><>>vvv^>>^<><^^>v<^>^^<<^^<v<<v<v^>v<^^v<^v<v<>vv^^v^>v^>v^>>v>>><<<^<v^^v>^<v^v>^vv^v<><v><v>v>^>>>^>><v^<>v^^^^>v<<v<>^v>v<<>>>><v<<>vv>v><<><v<>^v>v<><vvv^<>><<>^<<v^>^<><v<<<<<^v^>v<v^<vv^><<>^<<vv<>vv>>>v^vvv>>^v<^^<v>v>v><^>><^>>v><v<^^^<v^>v^<v>vv<vv^v^^v<^^^>>><>vv><vvv^><><^v>><^>^vv>>^^v<>^<v<<<^>v^<>^><^>v>><>>><>v<^<v^>>v^<^^>v^v<v<>^^>>v^><>^<vvvvv<^>v<v>>><<^v>v><<<^v^><<^v^^v<>v>^v<<v<<^v^^^>>^<^>><<<v<v^>v<^<<v><>^>>>^<^v<^<<<>^^^<v<vvv<>>>>>v^><^<^<<<^><vv>^vv<>v^>vv^<^><<>><<><>><^>^<>>>v>>>^^>>v<v>v>v>vv^v>^v>^^<>^<^^vv^^v<>vv^><<>v><<^vv^^^><^vv^^<^^vv<<>^>^v<^v><vv>>v^<<>><^<v>>v^<<<<<>>^^vv<^v<>^>>><>>>>^vvv<>><^^>^v^^^v^v^^^v><>^v<<^><^>^>>v<^>vv<>vv^^<^vv^><^^vv>^v<^^vv>v><><<<>^v>^v>v^^v>>v<vv^<v^>>v><<v<^^^v<<>v>>v<v<<<>>v<v<<>>vv<v<<<^>>v>^v>><>>>^^^^<><>>>v<^<<vv>><>^v<vv>^v^^v<><^^v^^<<>^v><>^<v<^^v>v>^^><v<<<^vvv<vv^><^>^>vv^>^^^<<<>><<v>>v><<<<vv>^vv><<^^v>>vv>v>vv<vv<^^>^<>v>v<v<^>>^^v>^v<<^<><<^>^^^<<<^^>vv<v<^>v<<v>><<^v><>><<<<^>
+^^<<^^vv^^v>>^>>><v<>v<vv<^><^v^^^^>v^><v^^v^v^^<^^><<^vvv>v^v>v^^^^<><v^<vv^<<><v<<<^><><vv>^>vv>v<>vv<>>^^<<><^^^v<^<^v><<^^<v<v<v<v<v<><<<<v<^>^<^>^^<<v^^^>>vv^^^v<v<<>><^<>^^vv<>v>>^>>^v^><>>^<>><v><>v^^<v^^^<^v<v><^><>^^<v^<<<<^vv<vv<<>>v<>^><vv^vvvv^v^>^vvvv<^<^^<v>^v^>vvvv><^^<vv^>^>v>^^<v^v<>v^v^^^>>>v<<^^^<>^^<<v<^v<^>^>^vv>v<vv^^<^<v><^v<<^vvv<>^>v<v^^vvv><vv^^^><><^<v^<vvv^<v<>vv>>^v>^vv>>v^<vv<v<vvv<v^<v^<<v<>>^<>^v>^vv^v>vv<^^^<v><<^><<><v^>^<<><v>>>>v^^>>><^^vv<>v<v<^>^<v>v^^v^vv^<^^>^>^^v>>v^<^<vvv^>^^<^vv^><v>v^>v^^v<v^v^^<^<^v>^vvv<^<^>vv>v<<v<>v>>><>>^>^^v>v<^>^<^>^^>^<vv>^<<^^^>>><>^<>v><^v>vv><><>>v<^vv<<<v<v>v^v^^v^vvv<>^v>v<^v>^^v<>>v>>^<^v<>v<^v<<v>>>vv>vvv<v^v<vv>^vv^v^^vv><<^v^vv>>^>><>vv>^v>^^><<^>v<<v^><<><><<v^^vv<>v<vv^><><<<v>^v><>vvv>><^<^v>v>v^<><^vvv<<v>^><>v>^v^<<>><^v>vv>><>v<vv^>v^^>v><^><>^<><v<>vvv>^v<v^v^<>>^v^v>v>><v<v^<^<v<<<<v<<^v><>vv^><<<>v^>vv^>><<<^<v^^v<><><<<^><<<^^^<>^>^<vvv^v^>^^><^^>^>v^v><v><^v<^^<^<<>^<^v<<>v^><^^>>^^v<^<v<>^><>>^>^^
+>^>v<<v>v^^v<><<>v^v>^^^^>v<<v>>v>>><v<<v>><^^>^^v>><<v<<^^<v>^<<<v>^v<<v<v>v^>v>v^^^<^>v>>>v^^>><v^vvvvv<^vv>v^<^<^>>>v^v^>^>^>^^><^>^^^<>^v<^<^<vvv<>vvv<>>>^v<^^>^><<>v<>>^v<v<<<^>v<^v<^>^v<><^^^v>><v<<vvv>>v>^><<<>^><<>^>^^<v>>^^v<vv<>><<^<>v<vv<^<v^v^>vv<vv>v><>v^^^^<v><>^v^^vv><^^v><^<><<<^^<^vv<v<vv^>^^>^<<<v>^^^v>>>^^v^>>v^>v><><>^><^v>v^<<<^^^^<v>v<<>><<>v><><^v^^^<v<v^v^<<^<^v>v>v>^<<^>><><>vv<^v>v<>><><>><>v^vvv>^<^v<><v^v<<^<^>>v>vvv<v<>^<v><v^><^<^<<<<^<<^^^>><v><^>^v^^>v<>v^^<<^<>>v><>>^^^<>^<^^>^v^>v>^v^>><^><><v<>>v^^vvvv<vv^<v^^v^^^^v>^v>^<<<<>>>v^>^vv^^^^>v^>><>>^^>^v^v<<<v>>>v^><^><><>>v>^vv<<>v^>>>v<v><>v><v^^>>>^<<>><<<>><^v^v><v^v<<^^^>>v^<<<<<v<<^<<^<^<^<>^<^v^v><<><><v^<^<>v^^<<<^<>v><>v^v>v<^v^vv<v^<<>^v<<^<^>vv><>^<><>^>vv>^^<^v^>v><vv>vv<vv><>>>>^v<>v>>>>><vv<<v<v<vvv<>>vv>><><<>^^vv^vvvvv><<>v><<^<^<^>v<vv>><<^<<^<^^<^v<<^v^vv^^>v^^v>v>v>^v^^>vvv<>^v<vv^v^<vv^>^^vv<<^>>><<^<>>><^>>vv>^v^<<^v<^<v>><^<^v><>v^v>^<<<>v^v>><^>v<><v^v>>^^><v>>><^>^>>><v><<>^^>>^<<<
+vvv>>^vv<>v<^<<><>>^><vvvv>v<><>^<<vv^v^^>>v^>>vv<^>vv<<^>>>v<v>^v^^>><v^^<^^^><^<vv^>^v^>v^v><vv>v^><^v^>>^<<>><v<<><>>><^^v<<>><<>v^^>><<v<><^>^v^^<^v^^v>vv^v<>><<^^<vvv^<^>^vv>^<<<^><^^^v<^>^<<<v^>vv^<>^<<<<<v<^<<^<v><>^<^<<<><^>^<^^^^>vv<>v^v>v<>^v^<<><v^v^<>>v<^>^v^v^vv>v><>^v<<^>v^v<<<>^<>v>v><>>^<><v>v<<v<v^^>v<<v<><^v<><<v<v<v<>^v<^vv<^>>vv>>^v><<>>^v><<vv^v^<<><^^>^v>^^<vv<<v>v><>v<^v>><<v<v>>vvv<>v>><v>>^v>^^^vv<<<<^v^<<v^<<<>>vv><^<<^<<<><>><^^>^^>>^<>^>>>^>^<>v>v^>><v><<<>><>>v<<<vvv>^>^<>^<<>^^>vv>>^<<>^<>>>>><>>>v<><v^<v><<^>v<<<v><<<^^v^vvvvvv>^^<v^><><<<<v<vvv^^^^v^^<v<><v<^^v^^<^^v>>^^v^v^^<v<v<vv>><>>^^^^^>>^>^^^v>>>v^>^<<^vv>^^<<^^^v<^>^^<><v^<<<>^<><<v^^>^^>>>>>v>^^v^^^^<><<^v^v>^v<^vvv>><^v>v>vvvv<^v<v><v^^<<<<<^v<<vv<v>^<^><<vv<>^<^vv^^v>>>>v^^v<>vv>v>v<<v<v^<vvv^^><v<<vv<<v<>>><<v<v^<^vv>>><><>v><v^<^v^^<^>>^^v^^>^<vv^vv><v<<v^v>v<^^>^v>v>^v<<^^vv><^>v<vv^^<<v^^^<>v>^<<>^v>>v<^^^v<v>>>>>vv<<>^v>v^<>^><><v<<vv<vvv><^^>>^^<>^>^<>>>vv<<<^^<<>vv><^<v<v<<^>^<^>><>v>^<
+<>v>^^^^vv^^<>>^<^>>^^><<^<^v>^^^><v^><^^v^>v<<<^v<>v<v>><^>^v>v^>><<v<^<^v<v>v><>^<><>^>v>vvv>vv<<>>^<vvvv^<><><v^<<v<^>>v>>v^<<><<^^>v<vv^<^<<^<v^<<^^v<><vvv><>><<<<<>^>>v^>v>vv^^<v<><>v^<^>>^^^<^>>^<<<<<vvv^>><><<<^v>>^><v>><v^<^<<<vv<<>v^<<^^v<>^<^^^<^^<><>>>>>>^v^^<v^>v><>v^^^v><>^<>v>^^v>vv>^<vvv^v<vv>^>vv<><^>>^<^vv^>>^^<^^v^><^^<>>>^<^>v^vv^v><><<<><<v>>vv<^vvv><vvv^>>^^v<>vv^^v^<>v^vvv^vvv^^v^>^<><>v<v^<^v^<<<^^<^^^><<v<<>^v<>>v<><^<><<^^<<v^^<vvv>>^>^v<>v^<<^>^^>><vv>>vvv^>v<^><^v>^v^v^v<>v<><v<<<^vv><>v^><^^>v^>v^>^><>><^><<vvv><v^^^^>>v^^vv<^^<>^<^>vvv<>><>^^>><vv>vv<v><<v>v<v^<v>^>^<^vv><<><v<<>vvv^<>^^>>>>^v^v>>^v<v<<^^<v^^^<<<^>^vv<>^<>><<<>vv<vv<<<>v>^>v>v>v>^<^><>>>>><>^>^<>vv>v<v^<>>^<v>>vv>>^>>>^><>>>vv^>v^^v<<<>v>^>>^>><><^<<^^<<vv<<^<<^v<^<<^><>vvv>^<vvv^><^v^v><>>vv<vv^^^vv>^<vv>^>vvvvvvvv>^v^^^>^<vv<vv>>^^<>^v<<>v<>^v<<v^>vvv^^<vv<<<^v^>^vv>><<^<^v^>vv<>>>>^<<>><<<<<<v><v<<^>v>^>v>vv<<vvv<><<^<v<<<v><^><<>^v>>^>vv^v^<vv^<>^^><v^v<<vv^>vv^v>>v><^vv^^><v<^v^<vv^<^^
+^>v^v<<<><^v^vvvv^>><>^v<>>v<^<<^v^vvvv>^><^><v<><v^>^v^v^<>v<v><>v<v^vv>>^^<<^^>vv^><v><vv<<><^v<<<vvv<<^vv<^^<v<^<v>>v^>><>^><<^>^v^><^>^^<>v><>^<<v^<<^^v^>><v^vv<^<v>vv^v<<><>>v^^<<^v<><^^v>>vv>v<<><<^^>><>>v>v><v<^<^<>^<>v<<><><v>^>>^^^>><^v^>v<>^v^>^v^<<^<v>v<>^><<v^<<vvv<^>>><vv<>^><^>^<<<<^<v<vv>v>>v<^v><v<<^v<>>v^>v^<<>v>^<<<^><><^^vvv><^v^v<><<^<>^^>>v<<^<^^<^^^vvv>^vvv<<v<><^<<<>^^^><<v><<^^><^^^v^v^><^^^<<v>^v<vv<<^<<v^<>v^<>v>^<>v<v^^v><^>^<^<v^^>><^<v^<>^<>v>>v^>v^<>>^v>><<^<^>^<^<^v^>>^<v<<v>>>^v>v<^^<v<>^>><>^><<>^>^>>v<^<vv^^^<>vv^v>^^^^v<v^v>^>^vvv>>^^v<v<v>>>>^>^^v><<^v>><v><^>^<^>^>^><vv>v<<<<v><v<>>^vvv><<v<^v>>^>^>v><v>^<>><v<v<>^^>^vvvv>^^<^><<>v^<^v^v>^>>^v^<><><<<<^^>^>^>>><><^<v^>^v>>v>v<<>^^v>v<<>^v>^>>v<^^<^<<v>v><>^>^v^<vv<^<<<^^^v>^><>>>>^v>v^^v>^<><^v>vv<^v^<>>^<<<^><^>>vv^vvvv<^<<^>>><v^^^^^<vv^<><^^>^>v>><<<<v^^^v>v>v>><><<v<>>^^><<>v^<><^v<^<>^><<<^<<<>^>^^<>vv><>v>v>>vv^v><<<vvv>>v>>^>vvv<^<^>>v^<<vv>^^<v>^>^^>v>>>v^<v^^v^<<<v<>v^vv>><>v<^<^^<^>>^<>vv>
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2024/day-15/solution-1.sh

@@ -0,0 +1,135 @@
+#!/usr/bin/env bash
+
+MAP_FILE=input-map
+DIRECTIONS_FILE=input-movements
+MAP_WIDTH=$(( $( head -1 "$MAP_FILE" | wc -c ) -1 ))
+#MAP_HEIGHT=$( < "$MAP_FILE" wc -l )
+
+# Load map
+read -r -a TEST_ARRAY <<< "$( < "$MAP_FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' )"
+read -r -a MAP_ARRAY <<< "$( < "$MAP_FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' )"
+printf "%s " "${MAP_ARRAY[@]}" | fold -w $(( MAP_WIDTH * 2 ))
+printf "\n"
+MAP_LEN=${#MAP_ARRAY[@]}
+
+# Count boxes
+BOX_COUNT=0
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[i]} == "O" ]]
+  then
+    (( BOX_COUNT++ ))
+  fi
+done
+printf "Box count: %s\n" "$BOX_COUNT"
+
+# Get robot position
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[i]} == "@" ]]
+  then
+    ROBOT_POSITION=$i
+    break
+  fi
+done
+printf "Robot position : %s\n" "$ROBOT_POSITION"
+
+# Hardcode direction values
+UP=$(( - MAP_WIDTH ))
+DOWN=$MAP_WIDTH
+LEFT=-1
+RIGHT=1
+
+# Iterate through directions
+MOVES=0
+while read -r DIRECTION
+do
+
+  # Interpret directions
+  if [[ $DIRECTION == "^" ]]
+  then
+    DIRECTION_VALUE=$UP
+  elif [[ $DIRECTION == "v" ]]
+  then
+    DIRECTION_VALUE=$DOWN
+  elif [[ $DIRECTION == "<" ]]
+  then
+    DIRECTION_VALUE=$LEFT
+  elif [[ $DIRECTION == ">" ]]
+  then
+    DIRECTION_VALUE=$RIGHT
+  fi
+
+  NEXT_POSITION=$(( ROBOT_POSITION + DIRECTION_VALUE ))
+
+  if [[ ${MAP_ARRAY[$NEXT_POSITION]} == "O" ]] # Box in front
+  then
+    END_POSITION=$(( NEXT_POSITION + DIRECTION_VALUE ))
+    while [[ ${MAP_ARRAY[$END_POSITION]} == "O" ]]
+    do
+      (( END_POSITION+=DIRECTION_VALUE ))
+    done
+    if [[ ${MAP_ARRAY[$END_POSITION]} == '#' ]]
+    then
+      printf "Next: %s End: %s Stacked boxes. No change.\n" "${MAP_ARRAY[$NEXT_POSITION]}" "${MAP_ARRAY[$END_POSITION]}"
+      : # Boxes are stacked up against wall
+    elif [[ ${MAP_ARRAY[$END_POSITION]} == "." ]]
+    then
+      printf "Next: %s End: %s Robot: %s Move boxes and robot\n" "${MAP_ARRAY[$NEXT_POSITION]}" "${MAP_ARRAY[$END_POSITION]}" "${MAP_ARRAY[$ROBOT_POSITION]}"
+      # Move the box
+      MAP_ARRAY[END_POSITION]=O
+      MAP_ARRAY[NEXT_POSITION]=.
+      # Move the robot
+      MAP_ARRAY[ROBOT_POSITION]=.
+      ROBOT_POSITION=$NEXT_POSITION
+      MAP_ARRAY[ROBOT_POSITION]=@
+    fi
+  elif [[ ${MAP_ARRAY[$NEXT_POSITION]} == "#" ]] # Wall in front, do nothing
+  then
+    printf "Next: %s Skipping\n" "${MAP_ARRAY[$NEXT_POSITION]}"
+    :
+  elif [[ ${MAP_ARRAY[$NEXT_POSITION]} == "." ]] # Empty space, move forward
+  then
+    printf "Next: %s Move robot forward\n" "${MAP_ARRAY[$NEXT_POSITION]}"
+    # Move the robot
+    MAP_ARRAY[ROBOT_POSITION]=.
+    ROBOT_POSITION=$NEXT_POSITION
+    MAP_ARRAY[ROBOT_POSITION]=@
+  fi
+  (( MOVES++ ))
+
+done <<< "$( < "$DIRECTIONS_FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' | tr ' ' '\n' )"
+printf "Moves: %s\n" "$MOVES"
+
+printf "%s " "${MAP_ARRAY[@]}" | fold -w $(( MAP_WIDTH * 2 ))
+printf "\n"
+
+# Calculate GPS values for boxes
+SUM=0
+BOX_COUNT=0
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[i]} == "O" ]]
+  then
+    (( BOX_COUNT++ ))
+    X=$(( i % MAP_WIDTH ))
+    Y=$(( i / MAP_WIDTH * 100 ))
+    GPS=$(( X + Y ))
+    printf "Box %s X: %s Y: %s GPS: %s\n" "$i" "$X" "$Y" "$GPS"
+    (( SUM+=GPS ))
+  fi
+done
+printf "Sum: %s\n" "$SUM"
+printf "Box count: %s\n" "$BOX_COUNT"
+
+# Compare and test if walls have moved
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${TEST_ARRAY[i]} == "#" ]]
+  then
+    if [[ ${TEST_ARRAY[i]} != "${MAP_ARRAY[i]}" ]]
+    then
+    printf "Index %s Wall changed.\n" "$i"
+    fi
+  fi
+done

2024/day-15/solution-2.sh

@@ -0,0 +1,250 @@
+#!/usr/bin/env bash
+
+FUNCNEST=99999
+MAP_FILE=input-map
+DIRECTIONS_FILE=input-movements
+MAP_WIDTH=$(( ( $( head -1 "$MAP_FILE" | wc -c ) -1 ) * 2 ))
+
+# Move the robot
+move_robot() {
+  MAP_ARRAY[ROBOT_POSITION]=.
+  ROBOT_POSITION=$NEXT_POSITION
+  MAP_ARRAY[ROBOT_POSITION]=@
+}
+
+# Function to move box in n direction
+vertical_move_box () {
+  local BOX_COORDINATE=$1
+  local BOX_MOVE_DIRECTION=$2
+
+  # Normalise coordinates
+  if [[ ${MAP_ARRAY[$BOX_COORDINATE]} == "[" ]]
+  then
+    local L_SIDE=$BOX_COORDINATE
+    local R_SIDE=$(( BOX_COORDINATE +1 ))
+  elif [[ ${MAP_ARRAY[$BOX_COORDINATE]} == "]" ]]
+  then
+    local L_SIDE=$(( BOX_COORDINATE -1 ))
+    local R_SIDE=$BOX_COORDINATE
+  fi
+  local L_SIDE_MOVE_COORDINATE=$(( L_SIDE + BOX_MOVE_DIRECTION ))
+  local R_SIDE_MOVE_COORDINATE=$(( R_SIDE + BOX_MOVE_DIRECTION ))
+
+  # Recurse if there are more boxes
+  if [[ ${MAP_ARRAY[L_SIDE_MOVE_COORDINATE]} == "[" ]] || \
+     [[ ${MAP_ARRAY[L_SIDE_MOVE_COORDINATE]} == "]" ]]
+  then
+    vertical_move_box "$L_SIDE_MOVE_COORDINATE" "$BOX_MOVE_DIRECTION"
+  fi
+  if [[ ${MAP_ARRAY[R_SIDE_MOVE_COORDINATE]} == "[" ]] || \
+     [[ ${MAP_ARRAY[R_SIDE_MOVE_COORDINATE]} == "]" ]]
+  then
+    vertical_move_box "$R_SIDE_MOVE_COORDINATE" "$BOX_MOVE_DIRECTION"
+  fi
+
+  MAP_ARRAY[L_SIDE_MOVE_COORDINATE]="["
+  MAP_ARRAY[R_SIDE_MOVE_COORDINATE]="]"
+  MAP_ARRAY[L_SIDE]="."
+  MAP_ARRAY[R_SIDE]="."
+}
+
+
+# Function to check if box can be moved in n direction
+vertical_check_move_box () {
+  local BOX_COORDINATE=$1
+  local BOX_MOVE_DIRECTION=$2
+
+  # Normalise coordinates
+  if [[ ${MAP_ARRAY[$BOX_COORDINATE]} == "[" ]]
+  then
+    local L_SIDE=$BOX_COORDINATE
+    local R_SIDE=$(( BOX_COORDINATE +1 ))
+  elif [[ ${MAP_ARRAY[$BOX_COORDINATE]} == "]" ]]
+  then
+    L_SIDE=$(( BOX_COORDINATE -1 ))
+    R_SIDE=$BOX_COORDINATE
+  fi
+
+  # Check if boxes are movable
+  local L_SIDE_MOVE_COORDINATE=$(( L_SIDE + BOX_MOVE_DIRECTION ))
+  local R_SIDE_MOVE_COORDINATE=$(( R_SIDE + BOX_MOVE_DIRECTION ))
+  if [[ ${MAP_ARRAY[$L_SIDE_MOVE_COORDINATE]} == '.' ]] && \
+     [[ ${MAP_ARRAY[$R_SIDE_MOVE_COORDINATE]} == '.' ]] # Can move
+  then
+    return 0
+  elif [[ ${MAP_ARRAY[$L_SIDE_MOVE_COORDINATE]} == '#' ]] || \
+       [[ ${MAP_ARRAY[$R_SIDE_MOVE_COORDINATE]} == '#' ]] # Blocked by wall
+  then
+    return 1
+  fi
+
+  # Recurse if there are more boxes
+  if [[ ${MAP_ARRAY[L_SIDE_MOVE_COORDINATE]} == "[" ]] || \
+     [[ ${MAP_ARRAY[L_SIDE_MOVE_COORDINATE]} == "]" ]]
+  then
+    vertical_check_move_box "$L_SIDE_MOVE_COORDINATE" "$BOX_MOVE_DIRECTION"
+    if [[ $? -eq 1 ]]
+    then
+      return 1
+    fi
+  fi
+  if [[ ${MAP_ARRAY[R_SIDE_MOVE_COORDINATE]} == "[" ]] || \
+     [[ ${MAP_ARRAY[R_SIDE_MOVE_COORDINATE]} == "]" ]]
+  then
+    vertical_check_move_box "$R_SIDE_MOVE_COORDINATE" "$BOX_MOVE_DIRECTION"
+    if [[ $? -eq 1 ]]
+    then
+      return 1
+    fi
+  fi
+}
+
+horizontal_move_box () {
+
+  local BOX_COOR=$1
+  local BOX_MOVE_DIRECTION=$2
+
+  local NEXT_SPOT=$(( BOX_COOR + BOX_MOVE_DIRECTION * 2 ))
+  if [[ ${MAP_ARRAY[$NEXT_SPOT]} == "#" ]]
+  then
+    return 1 # Failed to move box
+  elif [[ ${MAP_ARRAY[$NEXT_SPOT]} == "[" ]] || \
+       [[ ${MAP_ARRAY[$NEXT_SPOT]} == "]" ]]
+  then
+    horizontal_move_box "$NEXT_SPOT" "$BOX_MOVE_DIRECTION"
+    if [[ $? -eq 1 ]] ; then return 1 ; fi
+  elif [[ ${MAP_ARRAY[$NEXT_SPOT]} != "." ]]
+  then
+    return 1
+  fi
+
+  # Move the box
+  if [[ $NEXT_SPOT -lt $(( BOX_COOR + BOX_MOVE_DIRECTION )) ]]
+  then
+    MAP_ARRAY[NEXT_SPOT]="["
+    MAP_ARRAY[BOX_COOR + BOX_MOVE_DIRECTION]="]"
+  else
+    MAP_ARRAY[BOX_COOR + BOX_MOVE_DIRECTION]="["
+    MAP_ARRAY[NEXT_SPOT]="]"
+  fi
+  MAP_ARRAY[BOX_COOR]="."
+}
+
+# Load map
+read -r -a MAP_ARRAY <<< "$( 
+  < "$MAP_FILE" paste -s -d "" | 
+  sed -E '
+    s/#/##/g; 
+    s/\./../g; 
+    s/@/@./g; 
+    s/O/[]/g; 
+    s/(.)(.)/\1 \2 /g' 
+)"
+MAP_LEN=${#MAP_ARRAY[@]}
+
+print_map () {
+  printf "%s " "${MAP_ARRAY[@]}" | 
+    fold -w $(( MAP_WIDTH * 2 ))
+  printf "\n"
+}
+
+# Get robot position
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[$i]} == "@" ]]
+  then
+    ROBOT_POSITION=$i
+    break
+  fi
+done
+printf "Robot position : %s\n" "$ROBOT_POSITION"
+
+# Hardcode direction values
+UP=$(( - MAP_WIDTH ))
+DOWN=$MAP_WIDTH
+LEFT=-1
+RIGHT=1
+
+# Iterate through directions
+MOVES=0
+print_map
+while read -r DIRECTION
+do
+
+  # Interpret directions
+  if [[ $DIRECTION == "^" ]]
+  then
+    DIRECTION_VALUE=$UP
+  elif [[ $DIRECTION == "v" ]]
+  then
+    DIRECTION_VALUE=$DOWN
+  elif [[ $DIRECTION == "<" ]]
+  then
+    DIRECTION_VALUE=$LEFT
+  elif [[ $DIRECTION == ">" ]]
+  then
+    DIRECTION_VALUE=$RIGHT
+  fi
+
+  NEXT_POSITION=$(( ROBOT_POSITION + DIRECTION_VALUE ))
+
+  # Box in front
+  if [[ ${MAP_ARRAY[$NEXT_POSITION]} == "[" ]] || \
+     [[ ${MAP_ARRAY[$NEXT_POSITION]} == "]" ]]
+  then
+    #printf "Hit box.\n"
+    if [[ $DIRECTION_VALUE -eq $LEFT ]] || \
+       [[ $DIRECTION_VALUE -eq $RIGHT ]]
+    then
+      #printf "Left right box movement.\n"
+      if horizontal_move_box "$NEXT_POSITION" "$DIRECTION_VALUE"
+      then
+        move_robot
+      fi
+    elif [[ $DIRECTION_VALUE -eq $UP ]] || \
+         [[ $DIRECTION_VALUE -eq $DOWN ]]
+    then
+      #printf "Up down box movement.\n"
+      if vertical_check_move_box "$NEXT_POSITION" "$DIRECTION_VALUE"
+      then
+        vertical_move_box "$NEXT_POSITION" "$DIRECTION_VALUE"
+        move_robot
+      fi
+    fi
+
+  # Wall in front, do nothing
+  elif [[ ${MAP_ARRAY[$NEXT_POSITION]} == "#" ]]
+  then
+    #printf "Next: %s Skipping\n" "${MAP_ARRAY[$NEXT_POSITION]}"
+    :
+  # Empty space, move forward
+  elif [[ ${MAP_ARRAY[$NEXT_POSITION]} == "." ]]
+  then
+    #printf "Next: %s Move robot forward\n" "${MAP_ARRAY[$NEXT_POSITION]}"
+    move_robot
+  fi
+  (( MOVES++ ))
+
+  #print_map
+done <<< "$( < "$DIRECTIONS_FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' | tr ' ' '\n' )"
+printf "Moves: %s\n" "$MOVES"
+
+print_map
+
+# Calculate GPS values for boxes
+SUM=0
+BOX_COUNT=0
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[i]} == "[" ]]
+  then
+    (( BOX_COUNT++ ))
+    X=$(( i % MAP_WIDTH ))
+    Y=$(( i / MAP_WIDTH * 100 ))
+    GPS=$(( X + Y ))
+    #printf "Box %s X: %s Y: %s GPS: %s\n" "$i" "$X" "$Y" "$GPS"
+    (( SUM+=GPS ))
+  fi
+done
+printf "Sum: %s\n" "$SUM"
+printf "Box count: %s\n" "$BOX_COUNT"

2024/day-15/test-input-map

@@ -0,0 +1,10 @@
+##########
+#..O..O.O#
+#......O.#
+#.OO..O.O#
+#..O@..O.#
+#O#..O...#
+#O..O..O.#
+#.OO.O.OO#
+#....O...#
+##########

2024/day-15/test-input-movements

@@ -0,0 +1,10 @@
+<vv>^<v^>v>^vv^v>v<>v^v<v<^vv<<<^><<><>>v<vvv<>^v^>^<<<><<v<<<v^vv^v>^
+vvv<<^>^v^^><<>>><>^<<><^vv^^<>vvv<>><^^v>^>vv<>v<<<<v<^v>^<^^>>>^<v<v
+><>vv>v^v^<>><>>>><^^>vv>v<^^^>>v^v^<^^>v^^>v^<^v>v<>>v^v^<v>v^^<^^vv<
+<<v<^>>^^^^>>>v^<>vvv^><v<<<>^^^vv^<vvv>^>v<^^^^v<>^>vvvv><>>v^<<^^^^^
+^><^><>>><>^^<<^^v>>><^<v>^<vv>>v>>>^v><>^v><<<<v>>v<v<v>vvv>^<><<>^><
+^>><>^v<><^vvv<^^<><v<<<<<><^v<<<><<<^^<v<^^^><^>>^<v^><<<^>>^v<v^v<v^
+>^>>^v>vv>^<<^v<>><<><<v<<v><>v<^vv<<<>^^v^>^^>>><<^v>>v^v><^^>>^<>vv^
+<><^^>^^^<><vvvvv^v<v<<>^v<v>v<<^><<><<><<<^^<<<^<<>><<><^^^>^^<>^>v<>
+^^>vv<^v^v<vv>^<><v<^v>^^^>>>^^vvv^>vvv<>>>^<^>>>>>^<<^v>^vvv<>^<><<v>
+v^^>>><<^^<>>^v^<v^vv<>v^<<>^<^v^v><^<<<><<^<v><v<>vv>>v><v^<vv<>v^<<^

2024/day-16/input

@@ -0,0 +1,141 @@
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+#.#.#...#...#...#...#...#...#...#...#...#...#.#.....#.....#.#...#.#.........#.#.....#...#.#.......#.#.....#...#...#...#.#...#...#...#...#...#
+#.#.###.#.#.###.#.###.###.#.#.#.#.#.#.#.#.###.#.#.###.###.#.#.#.#.###.#####.#.#####.#.#.#.#####.#.###.#.###.###.#######.#######.###.#.#####.#
+#.#...#.#.....#.#...#.#...#.#.#...#...#.#.#.....#.#...#.#.#...#...#.........#.....#...#...#.....#...#.#.#...#.......#...#.....#...#...#...#.#
+#.###.#.###.###.###.#.#.#.#.#.###.#######.#.###.###.###.#.#######.###.#.###.#####.#########.###.###.#.#.#.#######.###.###.#.#.#.#####.#.###.#
+#...#...#...#...#.#.#.#...#.#...#.#...#.......#...#.....#.........#...#.#.....#.....#.......#.#.#.#.#...#.......#.....#...#.#.#.#...#...#...#
+#.#####.#.#.#.###.#.#.###.#.###.###.#.#.###.#.###.#####.###########.#.#.#.###.#.###.#######.#.#.#.#.###.#######.#.#######.#.#.###.#.###.#.###
+#.......#...#...#.#.#.#...#...#.....#.....#.#...#...#...#.....#.....#.#...#.#.#.....#...#...#.....#.#...#.....#.........#.#.#.....#...#.#...#
+#.#########.###.#.#.#.#.#####.#.###.#.###.#.#.###.###.###.###.#.#.#########.#.#.#####.#.#.###.#####.#.###.###.#.#######.#.#.###.#.###.###.#.#
+#...#.#...#...#.#.#...#.#...#...#.....#...#.#...#...#...#.#.....#.#.........#.#.....#.#.#...#.#...#.#.#.#...#.#.#.....#.#.#.#.#...#.........#
+###.#.#.#.#.###.#.#####.###.###.#.###.#.#######.###.###.#.#.###.#.#.#.#######.#####.#.#.###.#.#.#.#.#.#.###.#.#.#.#.###.#.#.#.###.#.###.###.#
+#...#.#.#...#...#.....#...#...#...#...#.........#...............#...#.......#.....#.#.#.....#.#.#...#...#...#...#.#.....#.#.#.........#...#.#
+#.###.#.#.###.###.#######.#.#.#####.#.#.#######.#.#####.#.###.###.#########.#.###.#.#.###.###.#.#######.#.#######.#########.#.#.#.#######.#.#
+#.....#.#.....#.........#.#.#...#...#.........#...............#...#.....#...#...#.#...#...#.....#.....#.#.......#.#.........#.#...#.....#...#
+#####.#.#.#####.#.###.#.#.#####.#.###.#.###.#########.#.###.#.#.#.#####.#.#.#.#.#.#####.###.#########.#.#######.#.#.###.#####.###.#.###.###.#
+#.#...#...#.#.........#.#.#.....#.....#.#...#.....#.#...#...#...#.......#.#.#.#...#.#...#...#.......#.......#...#.............#...#...#.....#
+#.#.#####.#.#.#####.#.###.#.###.#####.#.#.#.#.#.#.#.###.#.#######.#.###.#.#.#.#####.#.###.###.###.#.#####.###.###.#.###.#####.#.#.###.#######
+#.#.#.......#.......#.......#.......#...........#...#...#...#.....#.#...#.#.#.#...#.....#.#...#...#...#...#...#.#.....#.....#.#.#.#...#.....#
+#.#.###.#.#.###.#####.###############.#.#.#.#.#.#####.#.###.#######.#.###.#.#.#.#.#.#####.#.###.#####.###.#.###.###.#.#####.###.#.#.###.#.###
+#.....................#.........#.....#...#.#.#.....#...#...........#...#.#.#.#.#...#...............#...#.#.#.......#.....#.#...#...#...#...#
+#.###.###.#.###.#.#.###.#######.#.###.#.###.#.#####.###.#################.#.#.#.#####.#####.#.###.#####.###.#.#.###.#####.#.#.###.#######.#.#
+#...#.....#.....#.#...#...#...#.#.#...#...#...#...#...#...........#.......#.#.#...#...#.......................#.#.......#...#.#...#.........#
+#.#.#####.#######.###.###.#.###.#.#.#.#.#.#######.#.#############.#.#######.#.#####.###.#######.#.#.#########.#.#.#.###.#####.#.#####.#.###.#
+#S#...............................................#.................#.......#...........#.........#...........#.......#...............#.....#
+#############################################################################################################################################

2024/day-16/solution-1.sh

@@ -0,0 +1,253 @@
+#!/usr/bin/env bash
+
+FUNCNEST=99999
+FILE=test-input-1
+
+# Load map
+read -r -a MAP_ARRAY <<< "$( < "$FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' )"
+#read -r -a CHECKPOINT_ARRAY <<< "$( < "$FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' )"
+MAP_WIDTH=$(( $( head -1 "$FILE" | wc -c ) -1 ))
+MAP_LEN=${#MAP_ARRAY[@]}
+MAP_HEIGHT=$( < "$FILE" wc -l )
+printf "Map len: %s Map width: %s Map height: %s\n" "$MAP_LEN" "$MAP_WIDTH" "$MAP_HEIGHT"
+DIR_UP=$(( - MAP_WIDTH ))
+DIR_DOWN=$MAP_WIDTH
+DIR_LEFT=-1
+DIR_RIGHT=1
+
+print_map () {
+  printf "%s " "${MAP_ARRAY[@]}" | fold -w $(( MAP_WIDTH * 2 ))
+  printf "\n"
+}
+
+# Get starting position
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[$i]} == "S" ]]
+  then
+    START_POSITION=$i
+    MAP_ARRAY[START_POSITION]="X"
+    break
+  fi
+done
+printf "Start position: %s\n" "$START_POSITION"
+
+# Get end position
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[$i]} == "E" ]]
+  then
+    END_POSITION=$i
+    MAP_ARRAY[END_POSITION]="X"
+    break
+  fi
+done
+printf "End position: %s\n" "$END_POSITION"
+
+print_map
+
+# Mark all checkpoints
+declare -A CHECKPOINT_ARRAY
+CHECKPOINT_ARRAY[$START_POSITION]=0
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${MAP_ARRAY[$i]} != "." ]] ;then continue ;fi
+  STEP=$i
+  ADJ_COUNT=0
+  UP=$(( STEP + DIR_UP ))
+  DOWN=$(( STEP + DIR_DOWN ))
+  LEFT=$(( STEP + DIR_LEFT ))
+  RIGHT=$(( STEP + DIR_RIGHT ))
+  if [[ ${MAP_ARRAY[$UP]} == "." ]] && [[ $UP -gt 0 ]]
+  then
+    (( ADJ_COUNT++ ))
+  fi
+  if [[ ${MAP_ARRAY[$DOWN]} == "." ]] && [[ $DOWN -lt $MAP_LEN ]]
+  then
+    (( ADJ_COUNT++ ))
+  fi
+  if [[ ${MAP_ARRAY[$LEFT]} == "." ]]
+  then
+    (( ADJ_COUNT++ ))
+  fi
+  if [[ ${MAP_ARRAY[$RIGHT]} == "." ]]
+  then
+    (( ADJ_COUNT++ ))
+  fi
+  if [[ $ADJ_COUNT -gt 2 ]]
+  then
+    MAP_ARRAY[STEP]=X
+    CHECKPOINT_ARRAY[$STEP]=0
+  fi
+done
+CHECKPOINT_ARRAY[$END_POSITION]=0
+printf "%s " "${!CHECKPOINT_ARRAY[@]}"
+printf "\n"
+CHECKPOINT_ARRAY_LEN=${#CHECKPOINT_ARRAY[@]}
+
+# Iterate over checkpoints and print pairings
+declare -A CHECKPOINT_PAIRS
+declare -A CHECKPOINT_PAIR_WEIGHTS
+PREV_UP=$(( 2 * 5 * 7 ))
+PREV_DOWN=$(( 3 * 5 * 7 ))
+PREV_LEFT=$(( 2 * 3 * 5 ))
+PREV_RIGHT=$(( 2 * 3 * 7 ))
+get_weight_change () {
+  local POSITION=$1
+  local NEXT_POSITION=$2
+  local DIRECTION=$3
+  # Check if next position is moving in line with the previous direction
+  if [[ $(( NEXT_POSITION - POSITION )) -eq $DIR_UP ]] && [[ $(( DIRECTION % PREV_UP )) -eq 0 ]]
+  then
+    printf "1"
+    return 0
+elif [[ $(( NEXT_POSITION - POSITION )) -eq $DIR_DOWN ]] && [[ $(( DIRECTION % PREV_DOWN )) -eq 0 ]]
+  then
+    printf "1"
+    return 0
+elif [[ $(( NEXT_POSITION - POSITION )) -eq $DIR_LEFT ]] && [[ $(( DIRECTION % PREV_LEFT )) -eq 0 ]]
+  then
+    printf "1"
+    return 0
+elif [[ $(( NEXT_POSITION - POSITION )) -eq $DIR_RIGHT ]] && [[ $(( DIRECTION % PREV_RIGHT )) -eq 0 ]]
+  then
+    printf "1"
+    return 0
+  fi
+  # For different directions, weight change is 1000
+  printf "1000"
+}
+recurse_travel () {
+  local POSITION=$1 # Current position
+  local CHECKPOINT=$2 # Previous checkpoint
+  local DIRECTION=$3 # Allowed adjacent tiles
+  local WEIGHT=$4 # Weightage so far
+
+  # Search adjacent tiles
+  # Recurse if it's movable
+  # Add a checkpoint pair and weights if checkpoint found
+  # 2 : Up
+  # 3 : Down
+  # 5 : Left
+  # 7 : Right
+  if [[ $(( DIRECTION % 2 )) -eq 0 ]]
+  then
+    local UP=$(( POSITION + DIR_UP ))
+    if [[ $UP -gt 0 ]]
+    then
+      if [[ ${MAP_ARRAY[$UP]} == "." ]]
+      then
+        WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$UP" "$DIRECTION" )
+        recurse_travel "$UP" "$CHECKPOINT" "$(( 2 * 5 * 7 ))" "$(( WEIGHT + WEIGHT_CHANGE ))"
+      elif [[ -v CHECKPOINT_ARRAY[$UP] ]]
+      then
+        WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$UP" "$DIRECTION" )
+        CHECKPOINT_PAIRS["$CHECKPOINT-$UP"]=0
+        CHECKPOINT_PAIR_WEIGHTS["$CHECKPOINT-$UP"]=$(( WEIGHT + WEIGHT_CHANGE ))
+      fi
+    fi
+  fi
+  if [[ $(( DIRECTION % 3 )) -eq 0 ]] && [[ $DOWN -lt $MAP_LEN ]]
+  then
+    local DOWN=$(( POSITION + DIR_DOWN ))
+    if [[ $DOWN -lt $MAP_LEN ]]
+    then 
+      if [[ ${MAP_ARRAY[$DOWN]} == "." ]]
+      then
+        WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$DOWN" "$DIRECTION" )
+        recurse_travel "$DOWN" "$CHECKPOINT" "$(( 3 * 5 * 7 ))" "$(( WEIGHT + WEIGHT_CHANGE ))"
+      elif [[ -v CHECKPOINT_ARRAY[$DOWN] ]]
+      then
+        WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$DOWN" "$DIRECTION" )
+        CHECKPOINT_PAIRS["$CHECKPOINT-$DOWN"]=0
+        CHECKPOINT_PAIR_WEIGHTS["$CHECKPOINT-$DOWN"]=$(( WEIGHT + WEIGHT_CHANGE ))
+      fi
+    fi
+  fi
+  if [[ $(( DIRECTION % 5 )) -eq 0 ]]
+  then
+    local LEFT=$(( POSITION + DIR_LEFT ))
+    if [[ ${MAP_ARRAY[$LEFT]} == "." ]]
+    then
+      WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$LEFT" "$DIRECTION" )
+      recurse_travel "$LEFT" "$CHECKPOINT" "$(( 2 * 3 * 5 ))" "$(( WEIGHT + WEIGHT_CHANGE ))"
+    elif [[ -v CHECKPOINT_ARRAY[$LEFT] ]]
+    then
+      WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$LEFT" "$DIRECTION" )
+      CHECKPOINT_PAIRS["$CHECKPOINT-$LEFT"]=0
+      CHECKPOINT_PAIR_WEIGHTS["$CHECKPOINT-$LEFT"]=$(( WEIGHT + WEIGHT_CHANGE ))
+    fi
+  fi
+  if [[ $(( DIRECTION % 7 )) -eq 0 ]]
+  then
+    local RIGHT=$(( POSITION + DIR_RIGHT ))
+    if [[ ${MAP_ARRAY[$RIGHT]} == "." ]]
+    then
+      WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$RIGHT" "$DIRECTION" )
+      recurse_travel "$RIGHT" "$CHECKPOINT" "$(( 2 * 3 * 7 ))" "$(( WEIGHT + WEIGHT_CHANGE ))"
+    elif [[ -v CHECKPOINT_ARRAY[$RIGHT] ]]
+    then
+      WEIGHT_CHANGE=$( get_weight_change "$POSITION" "$RIGHT" "$DIRECTION" )
+      CHECKPOINT_PAIRS["$CHECKPOINT-$RIGHT"]=0
+      CHECKPOINT_PAIR_WEIGHTS["$CHECKPOINT-$RIGHT"]=$(( WEIGHT + WEIGHT_CHANGE ))
+    fi
+  fi
+}
+ITER=99999
+for CHECKPOINT in "${!CHECKPOINT_ARRAY[@]}"
+do
+  recurse_travel "$CHECKPOINT" "$CHECKPOINT" "$(( 2 * 3 * 5 * 7 ))" "0"
+  (( ITER-- ))
+  if [[ $ITER -eq 0 ]] ; then break ;fi
+done
+for CHECKPOINT in "${!CHECKPOINT_PAIRS[@]}"
+do
+  printf "Dest %s from checkpoint %s\n" "${CHECKPOINT_PAIRS[$CHECKPOINT]}" "$CHECKPOINT"
+done | sort
+for CHECKPOINT in "${!CHECKPOINT_PAIR_WEIGHTS[@]}"
+do
+  printf "Weight %s for checkpoint pair %s\n" "${CHECKPOINT_PAIR_WEIGHTS[$CHECKPOINT]}" "$CHECKPOINT"
+done | sort
+
+if [[ ${#CHECKPOINT_PAIRS[@]} -ne ${#CHECKPOINT_PAIR_WEIGHTS[@]} ]]
+then
+  printf "Checkpoint count with weight counts do not match.\n"
+fi
+
+# Map out full paths for calculate final results for it
+# Quite akin to BFS
+declare -A FINAL_PATH
+FINAL_PATH[$START_POSITION]=0
+for (( i=0 ; i<CHECKPOINT_ARRAY_LEN ; i+= 1 )) # Start to end should only have these many iterations
+do
+  for PATH in "${!FINAL_PATH[@]}"
+  do
+    CHECKPOINT=${PATH##*-}
+    PATH_SCORE=${FINAL_PATH[$PATH]}
+    if [[ $CHECKPOINT -eq $END_POSITION ]] # This path has completed
+    then
+      continue
+    fi
+    for NEXT_CHECKPOINT in "${!CHECKPOINT_ARRAY[@]}" # Check if there is a next mapping
+    do
+      if [[ $PATH =~ -$NEXT_CHECKPOINT- ]]; then continue; fi # Prevent loops
+      PAIR="$CHECKPOINT-$NEXT_CHECKPOINT"
+      if [[ -v CHECKPOINT_PAIRS[$PAIR] ]]
+      then
+	FINAL_PATH["$PATH-$NEXT_CHECKPOINT"]=$(( PATH_SCORE + ${CHECKPOINT_PAIR_WEIGHTS[$PAIR]} ))
+	unset "FINAL_PATH[$PATH]"
+      fi
+    done
+  done
+done
+
+for PATH in "${!FINAL_PATH[@]}"
+do
+  END=${PATH##*-}
+  if [[ $END == "$END_POSITION" ]]
+  then
+    printf "Path: %s weight: %s \n" "$PATH" "${FINAL_PATH[$PATH]}"
+  fi
+done
+
+#print_map

2024/day-16/test-input-1

@@ -0,0 +1,15 @@
+###############
+#.......#....E#
+#.#.###.#.###.#
+#.....#.#...#.#
+#.###.#####.#.#
+#.#.#.......#.#
+#.#.#####.###.#
+#...........#.#
+###.#.#####.#.#
+#...#.....#.#.#
+#.#.#.###.#.#.#
+#.....#...#.#.#
+#.###.#.#.#.#.#
+#S..#.....#...#
+###############

2024/day-17/input

@@ -0,0 +1,5 @@
+Register A: 64196994
+Register B: 0
+Register C: 0
+
+Program: 2,4,1,1,7,5,1,5,4,0,0,3,5,5,3,0

2024/day-17/machine.sh

@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+adv () { # OPCODE 0
+  $DEBUG && printf "OPCODE : 0 OP: adv OPERAND: %s\n" "$1" >&2
+  OPERAND=$( get_combo "$1" )
+  #REG_A=$(( REG_A / (2 ** OPERAND) ))
+  REG_A=$( printf "%s / (2 ^ %s) \n" "$REG_A" "$OPERAND" | bc )
+}
+bxl () { # OPCODE 1
+  $DEBUG && printf "OPCODE : 1 OP: bxl OPERAND: %s\n" "$1" >&2
+  OPERAND=$1
+  REG_B=$(( REG_B ^ OPERAND ))
+}
+bst () { # OPCODE 2
+  $DEBUG && printf "OPCODE : 2 OP: bst OPERAND: %s\n" "$1" >&2
+  OPERAND=$( get_combo "$1" )
+  REG_B=$(( OPERAND % 8 ))
+}
+jnz () { # OPCODE 3
+  $DEBUG && printf "OPCODE : 3 OP: jnz OPERAND: %s\n" "$1" >&2
+  OPERAND=$1
+  if [[ $REG_A -eq 0 ]]
+  then
+    return 0
+  else
+    POINTER=$OPERAND
+  fi
+}
+bxc () { # OPCODE 4
+  $DEBUG && printf "OPCODE : 4 OP: bxc OPERAND: %s\n" "$1" >&2
+  # OPERAND=$1 # Deprecated for legacy reasons
+  REG_B=$(( REG_B ^ REG_C ))
+}
+out () { # OPCODE 5
+  $DEBUG && printf "OPCODE : 5 OP: out OPERAND: %s\n" "$1" >&2
+  OPERAND=$( get_combo "$1" )
+  printf "%s\n" "$(( OPERAND % 8 ))"
+}
+bdv () { # OPCODE 6
+  $DEBUG && printf "OPCODE : 6 OP: bdv OPERAND: %s\n" "$1" >&2
+  OPERAND=$( get_combo "$1" )
+  #REG_B=$(( REG_A / (2 ** OPERAND) ))
+  REG_B=$( printf "%s / (2 ^ %s) \n" "$REG_A" "$OPERAND" | bc )
+}
+cdv () { # OPCODE 7
+  $DEBUG && printf "OPCODE : 7 OP: cdv OPERAND: %s\n" "$1" >&2
+  OPERAND=$( get_combo "$1" )
+  #REG_C=$(( REG_A / (2 ** OPERAND) ))
+  REG_C=$( printf "%s / (2 ^ %s) \n" "$REG_A" "$OPERAND" | bc )
+}
+
+# Get combo operand
+get_combo () {
+  if [[ $OPERAND -eq 0 ]]
+  then
+    printf "$1"
+  elif [[ $OPERAND -eq 1 ]]
+  then
+    printf "$1"
+  elif [[ $OPERAND -eq 2 ]]
+  then
+    printf "$1"
+  elif [[ $OPERAND -eq 3 ]]
+  then
+    printf "$1"
+  elif [[ $OPERAND -eq 4 ]]
+  then
+    printf "%s" "$REG_A"
+  elif [[ $OPERAND -eq 5 ]]
+  then
+    printf "%s" "$REG_B"
+  elif [[ $OPERAND -eq 6 ]]
+  then
+    printf "%s" "$REG_C"
+  elif [[ $OPERAND -eq 7 ]]
+  then
+    printf "Reserved operand. Exiting.\n" >&2
+    exit 1
+  fi
+}
+
+# Check if the program is a quine
+check_quine () {
+  $DEBUG && printf "%s," "${INPUT[@]}"
+  $DEBUG && printf "%s," "${OUTPUT[@]}"
+  for (( i=0; i<${#INPUT[@]}; i++ ))
+  do
+    if [[ ${INPUT[$i]} != "${OUTPUT[$i]}" ]]
+    then
+      return 1
+    fi
+  done
+}
+
+# Check digits
+check_tail () {
+  $DEBUG && printf "%s," "${INPUT[@]}"
+  $DEBUG && printf "%s," "${OUTPUT[@]}"
+  for (( i=${#INPUT[@]}; i>=${#INPUT[@]}-$1; i-- ))
+  do
+    if [[ ${INPUT[$i]} != "${OUTPUT[$i]}" ]]
+    then
+      return 1
+    fi
+  done
+}
+
+# Interpret opcode
+read_opcode () {
+  local OPCODE=$1
+  local OPERAND=$2
+  if [[ $OPCODE -eq 0 ]]
+  then
+    adv "$OPERAND"
+    (( POINTER+=2 ))
+  elif [[ $OPCODE -eq 1 ]]
+  then
+    bxl "$OPERAND"
+    (( POINTER+=2 ))
+  elif [[ $OPCODE -eq 2 ]]
+  then
+    bst "$OPERAND"
+    (( POINTER+=2 ))
+  elif [[ $OPCODE -eq 3 ]]
+  then
+    # jnz itself moves the pointer
+    jnz "$OPERAND"
+  elif [[ $OPCODE -eq 4 ]]
+  then
+    bxc "$OPERAND"
+    (( POINTER+=2 ))
+  elif [[ $OPCODE -eq 5 ]]
+  then
+    out "$OPERAND"
+    (( POINTER+=2 ))
+  elif [[ $OPCODE -eq 6 ]]
+  then
+    bdv "$OPERAND"
+    (( POINTER+=2 ))
+  elif [[ $OPCODE -eq 7 ]]
+  then
+    cdv "$OPERAND"
+    (( POINTER+=2 ))
+  fi
+}
+
+execute_machine () {
+    POINTER=0
+    while [[ $POINTER -lt $INPUT_LEN ]]
+    do
+      OPCODE=${INPUT[$POINTER]}
+      OPERAND=${INPUT[$POINTER+1]}
+      read_opcode "$OPCODE" "$OPERAND"
+      $DEBUG && printf "Registers A : %s B: %s C : %s\n" "$REG_A" "$REG_B" "$REG_C" >&2
+      $DEBUG && printf "Pointer : %s\n" "$POINTER" >&2
+      (( MACHINE_ITER-- ))
+      if [[ $MACHINE_ITER -eq 0 ]] ; then break ; fi
+    done | paste -s -d " " 
+}
+

2024/day-17/solution-1.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+FILE=$1
+ITER=99
+DEBUG=false
+
+REG_A=$(grep 'Register A:' "$FILE" | cut -f2 -d: )
+REG_B=$(grep 'Register B:' "$FILE" | cut -f2 -d: )
+REG_C=$(grep 'Register C:' "$FILE" | cut -f2 -d: )
+read -r -a INPUT <<< "$(grep 'Program:' "$FILE" | cut -f2 -d: | tr ',' ' ' )"
+INPUT_LEN=${#INPUT[@]}
+
+printf "Registers A: %s B: %s C: %s\n" "$REG_A" "$REG_B" "$REG_C" >&2
+printf "Input : " >&2
+printf "%s " "${INPUT[@]}" >&2
+printf "\n" >&2
+
+# Load machine operations
+. machine.sh
+
+POINTER=0
+while [[ $POINTER -lt $INPUT_LEN ]]
+do
+  OPCODE=${INPUT[$POINTER]}
+  OPERAND=${INPUT[$POINTER+1]}
+  read_opcode "$OPCODE" "$OPERAND"
+  printf "Registers A : %s B: %s C : %s\n" "$REG_A" "$REG_B" "$REG_C" >&2
+  printf "Pointer : %s\n" "$POINTER" >&2
+  (( ITER-- ))
+  if [[ $ITER -eq 0 ]] ; then break ;fi
+done | paste -s -d "," 

2024/day-17/solution-2.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+
+FILE=$1
+ITER=1
+MACHINE_ITER=999
+DEBUG=false
+INCREMENT=100000000000
+TAIL_NUM=3
+
+# Load registry values
+REG_A=$(grep 'Register A:' "$FILE" | cut -f2 -d: )
+REG_B=$(grep 'Register B:' "$FILE" | cut -f2 -d: )
+REG_C=$(grep 'Register C:' "$FILE" | cut -f2 -d: )
+
+# Rewrite registry A starting value
+REG_A=100000000000000
+#REG_A=164541160582800
+
+# Load input string
+read -r -a INPUT <<< "$(grep 'Program:' "$FILE" | cut -f2 -d: | tr ',' ' ' )"
+INPUT_LEN=${#INPUT[@]}
+printf "Registers A: %s B: %s C: %s\n" "$REG_A" "$REG_B" "$REG_C" >&2
+#printf "Input: " >&2
+#printf "%s " "${INPUT[@]}" >&2
+#printf "\n" >&2
+
+# Load machine operations
+. machine.sh
+
+# Iterate registry A until last nth digits are matched
+PIN_DIGITS=0
+while ! check_tail "$INPUT_LEN" "$PIN_DIGITS"
+do
+  while ! check_tail "$TAIL_NUM" "$PIN_DIGITS"
+  do
+    read -r -a OUTPUT <<< "$( execute_machine )"
+    printf "Register A: %s\n" "$REG_A"
+    printf "Output:\t"
+    printf "%s " "${OUTPUT[@]}"
+    printf "\n"
+    printf "Input:\t"
+    printf "%s " "${INPUT[@]}"
+    printf "\n"
+    (( REG_A+=INCREMENT))
+    #(( ITER-- ))
+    if [[ $ITER -eq 0 ]] ; then break ; fi
+  done
+  PIN_DIGITS=$TAIL_NUM
+  printf "Matched digit. Reducing count"
+  (( TAIL_NUM+=1 ))
+  (( INCREMENT/= 50 ))
+done

2024/day-17/test-input-1

@@ -0,0 +1,5 @@
+Register A: 729
+Register B: 0
+Register C: 0
+
+Program: 0,1,5,4,3,0

2024/day-19/input-designs

@@ -0,0 +1,400 @@
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2024/day-19/input-towels

@@ -0,0 +1 @@
+rwgw, ruwgb, urwbr, wu, uurbubr, gbbr, uwwb, rubgwu, wggwbwr, rugubuww, uw, rgru, rgrr, rrg, rbb, uurbrww, br, uwrwrwgb, bwbw, wgbu, wggu, urg, ugr, ugur, gurrbrr, ubgrruu, bb, rburguu, urgg, wggugggr, brww, bwwgr, wugub, grgg, ugw, grubw, gbwru, rww, wbu, ggwbu, ugurw, ggwb, uubuwgb, bbugw, rgg, wurr, bwbb, wburbb, rbrb, bbrwgw, gwbb, ubggr, gurr, rrr, rburg, uug, bbrubu, bwgu, gwug, guw, buwurgw, rruwggg, ubb, wwb, wbrg, wgr, wgrw, gubrr, rrwru, gbub, rbr, rwr, rubwu, ub, bgwr, gu, ggggwrbr, wrw, grg, rbuwu, bgbr, ugww, wrg, brwub, gruu, gbwbw, wubw, wur, grggwb, uuwuug, wug, rruuw, wgwg, uww, gbgu, rurr, gwguu, gwrwbw, guuww, rbugw, gg, uwbw, ubgrubur, wurrb, rgugurr, wrr, buggb, urwrb, ubuu, rgu, gwggb, uuu, uub, bruubb, bww, uwgb, rrubwg, ubwu, ugu, buwrrbwr, bbr, rbrww, ubuwg, bwwrr, gbwg, bw, gguugu, bgbbw, ggb, wrruuwbr, rug, uur, rgw, gbb, wuwg, r, guug, gwb, wbgr, bbbw, grwgwr, gwg, rurur, bubu, rguu, brb, ugbbbrr, wugrrr, bbw, bbru, bgrbubg, ubw, uruu, wgrgrwwr, bbwrugu, gbbbwur, rubbwbuw, wuwrwbu, brwbru, wub, rbrg, wwbwrbu, grbbu, ubbbwb, urw, gwuw, uu, urwugu, bgw, gw, rbwwwurg, gubr, bbu, rur, rburwgr, gwwgr, gb, rbur, rbw, ug, wurur, gbbrrb, ruuuwugr, wwrgug, gbrugu, wrww, wuwbgw, uwwwgrgb, gww, grwwu, ggu, rrurr, bgr, ubugwu, wwgwur, urrrbw, bwr, wrbgbu, wrwbb, gug, bwu, ruurw, rw, wbb, bbwgwrr, wgg, ugwu, wr, wwwr, w, wbwbuw, guugg, bug, bbbb, brbb, brur, rbg, wuu, wurwgb, rru, urrrbugr, grr, rubu, uugrwbb, bgbrurr, wgw, gub, ugwwgr, urwr, wbwbg, wrrb, rwrgg, ggwgrgw, bwbu, uwb, rg, urr, brrur, wg, u, bu, ubbbrw, brgbbbbu, wgrgu, bgb, ubu, uugubg, bub, rwrr, gggbrw, gwwrww, grub, urgrgw, bru, wgwgb, wubrg, ugrwwbb, wbgwrru, gbwb, wugu, uwwwg, ubr, gwr, bguwb, guwbw, wrb, grw, gwwgbb, wbwwr, grbwub, ubg, bwbgw, rwu, uurb, rbwgur, ubbr, grrr, ubwg, rgwuug, rgb, grrbub, bwb, uwuuubg, wrugb, brurub, wurg, urur, uru, bwwrrr, urwub, uwr, brr, ggg, bbg, bgg, guuruuu, ubwb, uburgbb, gbgrgug, rbwr, uwu, rwwbuugr, ubwwg, wwr, brg, wruububu, bgbb, ww, wrgbu, ugb, gru, bbwgbr, brw, bwwbb, wbr, grbg, wbbb, brbrwwbw, gbgwrrub, wwu, wgb, rruruu, wuggr, urb, bwg, wbg, rbu, wwg, wuw, wrbbugg, rb, rrgrbrg, guu, bwwugr, rwrb, gwbrb, wrugub, ubbrwu, uggbb, ggr, wwru, rgbb, bbgbgrr, wuruw, gbg, ubbwrg, bur, wuwuu, bgu, ruwgur, gbu, wwuwb, ggbgg, ugrbb, bugw, rggrb, rrw, rgwru, ubru, grbbuw, wbrr, wruu, ggw, wbgguuw, rggrugw, gbgwwg, gwwru, gur, rr, wbgb, burbwr, rggu, wgwu, rwuug, gwrbr, wbbwbgb, wurb, gbbuggg, gbbgbg, ur, ugwwu, wgu, bg, urrbgr, gurwg, bbb, urrr, bwurbrr, gbr, gwurb, ugg, uwbbrr, buggr, rub, bwrgbw, uwbb, ububggw, uuwrbbu, rrrwr, ruwgub, bugb, wwrw, gwbg, wwwrrr, urgggwb, gwuwr, www, g, wgrg, wbuwb, grwrg, uuw, wuwgb, buru, rgr, rrgu, urbgb, wgrr, gbuwww, rrgrgw, rgbrg, gugbuw, rrb, rrgbug, ugwbrgw, rwuw, grugrrbr, gbgww, ruw, wubb, gr, ruu, ubbg, brgurb, rwg, gwu, ruwr, grb, uwg, wgww, bgbbrww, buu, rurbgr, rwbw, gwwr, rwwbbugu, grgbr

2024/day-19/solution-1.sh

@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+
+TOWEL_FILE=$1
+DESIGN_FILE=$2
+TOWEL_ITER=10
+
+read -r -a TOWELS <<< "$( < "$TOWEL_FILE" tr ',' ' ' | paste -s -d " " )"
+read -r -a DESIGNS <<< "$( < "$DESIGN_FILE" paste -s -d " " )"
+
+#printf "Towel %s\n" "${TOWELS[@]}"
+#printf "Design %s\n" "${DESIGNS[@]}"
+
+# Check if towel is a viable match
+match_towel () {
+  TOWEL=$1
+  MATCH=$2
+  FULL_DESIGN=$3
+
+  TO_MATCH="$MATCH$TOWEL"
+  PARTIAL_DESIGN=${FULL_DESIGN::${#TO_MATCH}}
+  if [[ $PARTIAL_DESIGN == "$TO_MATCH" ]]
+  then
+    return 0
+  else
+    return 1
+  fi
+}
+
+TOTAL_VALID=0
+declare -A UNMATCHED_TOWEL_LIST
+for DESIGN in "${DESIGNS[@]}"
+do
+  printf "Starting design : %s\n" "$DESIGN"
+  declare -A MATCH_LIST
+  # Get all viable starting matches
+  for TOWEL_IDX in "${!TOWELS[@]}"
+  do
+    TOWEL=${TOWELS[$TOWEL_IDX]}
+    #printf "Testing towel: %s\n" "$TOWEL"
+
+    if match_towel "$TOWEL" "" "$DESIGN"
+    then
+      #printf "Starting match found. towel : %s\n" "$TOWEL"
+      # Copy towel list and remove the starting towel
+      read -r -a TOWEL_LIST <<< "$( printf "%s " "${TOWELS[@]}" )"
+      unset "TOWEL_LIST[$TOWEL_IDX]"
+      # Add to combinations
+      MATCH_LIST["$TOWEL"]=$( printf "%s " "${TOWEL_LIST[@]}" )
+      unset "TOWEL_LIST"
+    fi
+  done
+  if [[ ${#MATCH_LIST[@]} -eq 0 ]] ; then printf "No available starting matches.\n" ; continue ; fi
+  # Now iterate over starting matches
+  LOOP_COUNT=${#TOWELS[@]}
+  while [[ $LOOP_COUNT -gt 0 ]]
+  do
+    for TOWEL_MATCH in "${!MATCH_LIST[@]}"
+    do
+      read -r -a TOWEL_LIST <<< "${MATCH_LIST[$TOWEL_MATCH]}"
+      # Iterate over towels and find subsequent match
+      for TOWEL_IDX in "${!TOWEL_LIST[@]}"
+      do
+        TOWEL=${TOWELS[$TOWEL_IDX]}
+        if match_towel "$TOWEL" "$TOWEL_MATCH" "$DESIGN"
+        then
+          #printf "Match found for %s towel : %s\n" "${TOWEL_MATCH}" "$TOWEL"
+          unset "TOWEL_LIST[$TOWEL_IDX]"
+          # Add to combinations
+          MATCH_LIST["$TOWEL_MATCH$TOWEL"]=$( printf "%s " "${TOWEL_LIST[@]}" )
+          unset "MATCH_LIST[$TOWEL_MATCH]"
+        fi
+      done
+    done
+    (( LOOP_COUNT-- ))
+  done
+
+  # Calculate proper matches
+  for MATCH in "${!MATCH_LIST[@]}"
+  do
+    if [[ $MATCH == "$DESIGN" ]]
+    then
+      printf "Match found for design %s\n" "$DESIGN"
+      (( TOTAL_VALID++ ))
+    fi
+  done
+
+  # Remove matches
+  unset MATCH_LIST
+done
+printf "Total valid designs: %s\n" "$TOTAL_VALID"

2024/day-19/solution-2.sh

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+
+TOWEL_FILE=$1
+DESIGN_FILE=$2
+
+read -r -a TOWELS <<< "$( < "$TOWEL_FILE" tr ',' ' ' | paste -s -d " " )"
+read -r -a DESIGNS <<< "$( < "$DESIGN_FILE" paste -s -d " " )"
+
+# Check if towel is a viable match
+match_towel () {
+  TOWEL=$1
+  MATCH=$2
+  FULL_DESIGN=$3
+
+  TO_MATCH="$MATCH$TOWEL"
+  PARTIAL_DESIGN=${FULL_DESIGN::${#TO_MATCH}}
+  if [[ $PARTIAL_DESIGN == "$TO_MATCH" ]]
+  then
+    return 0
+  else
+    return 1
+  fi
+}
+
+TOTAL_VALID=0
+# Loop through designs
+for DESIGN in "${DESIGNS[@]}"
+do
+  # The idea is for each design, keep a sum of combinations
+  # for each index position of the DESIGN string
+  # Since the branches "multiply", just take the sum
+  # at the starting index, and add it to the end 
+  # of the "combined" index
+  # for each possible combination.
+  printf "Starting design : %s\n" "$DESIGN"
+  declare -A POINTER_LIST
+  POINTER_LIST[0]=1
+  POINTER_END=$(( ${#DESIGN}  ))
+
+  while true
+  do
+    POINTER=${#DESIGN}
+    # Pick lowest pointer value
+    for P in "${!POINTER_LIST[@]}"
+    do
+      if [[ $P -lt $POINTER ]] 
+      then
+        POINTER=$P
+      fi
+    done
+    POINTER_VALUE=${POINTER_LIST[$POINTER]}
+    # Check if end has reached
+    if [[ $POINTER -eq $POINTER_END ]]
+    then
+      break
+    fi
+
+    # Loop through towels and remove earliest pointer
+    for TOWEL in "${TOWELS[@]}"
+    do
+      TOWEL_LEN=${#TOWEL}
+      END=$(( POINTER + TOWEL_LEN ))
+      if [[ ${DESIGN:$POINTER:$TOWEL_LEN} == "$TOWEL" ]]
+      then
+	POINTER_LIST[$END]=$(( ${POINTER_LIST[$END]} + POINTER_VALUE ))
+      fi
+    done
+
+    # Done looping through for specific point
+    unset "POINTER_LIST[$POINTER]" 
+  done
+  printf "Total matches for %s is %s.\n" "$DESIGN" "${POINTER_LIST[$POINTER_END]}"
+  TOTAL_VALID=$(( TOTAL_VALID + POINTER_LIST[$POINTER_END] ))
+  unset "POINTER_LIST"
+done
+printf "Total valid designs: %s\n" "$TOTAL_VALID"

2024/day-19/test-designs

@@ -0,0 +1,8 @@
+brwrr
+bggr
+gbbr
+rrbgbr
+ubwu
+bwurrg
+brgr
+bbrgwb

2024/day-19/test-towels

@@ -0,0 +1 @@
+r, wr, b, g, bwu, rb, gb, br

2024/day-5/solution-2.sh

@@ -1,25 +1,21 @@
 #!/usr/bin/env bash
 
+INPUT_RULES=$(sort -n input-rules)
 {
   while read -r LINE
   do
     GREP_EXPR=$( printf "%s"  "$LINE" | tr ',' '|' )
-    PASS_RULES=0
+    BEEG_AWK_EXPR=$( 
-    # Loop through rules and find a breaking rule
+      printf "%s" "$INPUT_RULES" | 
-    while read -r RULE
+      grep -E "($GREP_EXPR)\\|($GREP_EXPR)" | 
-    do
+      sed -E 's/(.*)\|(.*)/\1,.*\2/; s&^&/&; s&$&/&' | 
-      GREPC=$( printf "%s" "$LINE" | grep -c "$RULE" ) 
+      paste -s -d '@' | 
-      if [[ $GREPC -ne 1 ]]
+      sed 's/@/ \&\& /g' 
-      then
+    )
-        #printf "%s rule violated for %s \n" "$RULE" "$LINE"
+    AWK_MATCH=$( printf "%s" "$LINE" | awk "$BEEG_AWK_EXPR" | wc -c )
-        PASS_RULES=1
-        break
-      fi
-    # Filter rules that only has included pages
-    done <<< "$( < input-rules grep -E "($GREP_EXPR)\\|($GREP_EXPR)" | sed 's/|/,.*/')" 
 
     # Don't process for valid lines
-    [[ $PASS_RULES -eq 0 ]] && continue
+    if [[ $AWK_MATCH -gt 0 ]] ; then continue; fi
     printf "%s\n" "$LINE"
   
   done < input-updates
@@ -31,7 +27,10 @@
     do
       # Loop through rules and build all the KVs
       DAG_GREP_EXPR=$( printf "%s"  "$CACHED_LINE" | paste -s -d '|' )
-      KV_ARRAY=( $( < input-rules grep -E "($DAG_GREP_EXPR)\\|($DAG_GREP_EXPR)" | tr '|' ' ' | paste -s -d ' ') )
+      read -r -a KV_ARRAY <<< "$( 
+        < input-rules grep -E "($DAG_GREP_EXPR)\\|($DAG_GREP_EXPR)" | 
+        tr '|' ' ' | 
+        paste -s -d ' ')"
       # Going through dependencies to find final key
       KEY=${KV_ARRAY[0]}
       while true
@@ -46,14 +45,13 @@
             break
           fi
         done
-	if [[ $BREAK -eq 1 ]] ; then continue ; else break ; fi
+        if [[ $BREAK -eq 0 ]] ; then break ; fi
       done
       printf "%s\n" "$KEY"
       CACHED_LINE=$( printf "%s" "$CACHED_LINE" | grep -v "$KEY" )
     done | tac | paste -s -d' '
   done 
 } |
-  tee final-output |
   awk '
   BEGIN{ total = 0 } 
   {

2024/day-6/input

@@ -0,0 +1,130 @@
+.....#..#................#...#.....#.......................................................#.............................##.......
+......................#..............................................................#..............#..........................#..
+.........#........................#.....................................................#..............#...........#........##....
+..........#......................#.....#...#............#..........................#.....#........................................
+#....................................................................................................................#............
+.#....#......................#.......................#...............................#...#.....#...................#........#.....
+..#..#.......................##........#...............................................................#........#.........#.......
+..............................................................#...#.........#..#..................................................
+.............####..................................#................#..#.....................................#.....#..............
+..........#................#................................................#........................#.....#......................
+..............................................#.........#.....................#..................#.......................#........
+.........................................##..#.................................#.....#............................................
+............#..#...#...............................#.#.....#...............#...............................#..............#.#.#..#
+.................#..........#..#....#.....................#......................................##............#..................
+.......#....#.....................#......##...................#..............#.................#........#..#......#...............
+...............................................#.............#....................................................................
+..............#..............................................##..................#..........................#............#........
+................#.......................#..#............................................................#..........#..#.........#.
+.#.......................###............#.........#.................................................#.............................
+........#......................................................................................#.....#.......#...#................
+#.#.........................#..#.............................................#....#........................#......................
+.......#.....#...............................#.....#......................#.................................#.....#...#...........
+................................................................................................#............#....................
+.......#......#...............#...#............................#................................#................................#
+.#.....................................................................................................................#......#...
+...........#..........................................#........#...................#..............................................
+....#......................................................................................#.....##.#...................#.........
+...#..........................................................................##.......................................#.....#....
+#........#................#...............#.........#..#.#..............##..............#........#............#....#.....#........
+......#......................................#...............#....#..#...........................#................................
+#..............................................................................#............#...#..#....................#......#..
+.......#.........................................#.........#.......#....................................#.........................
+......#......#.............................................#.....................#...........#.............#..#...................
+#.......................#........#............................................##..............................#...................
+..........................................................................#........................................#....#......#..
+..........#..#...............................................#............................#.#..............................#......
+....#...........#..#...................................#................................................................#.........
+..............#..........#...............#....#.....................................#.......................#.....................
+.............#........#....#.........#...............#.........#..................................................................
+.#......#...................#.......#...........................................................................#.............#...
+.............##...........#.........................................#......................#.......................#..............
+.....#................#.....#...................##.......#......#...........#.......#............................................#
+.#..#.............................................................#..............................................#................
+...#......#............................#..........................................................................................
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+................#..............................#....................................................#.............................
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+.#..................................#......#..#............#.................#.............#......#..#.......................#....
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+.......#......##........#.................#.............................................................#....#........#...........
+.....................#............................................#.#......#.....##....#........#.................................
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+....................#......#................................#.....................................................#.......#..#....
+.....................................................#.........#.......................................#.....##..#................

2024/day-6/solution-1.sh

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+ARRAY_SHAPE=130 # It's a square
+FILENAME=input
+read -r -a MAP_ARRAY <<< "$( paste -s -d '' "$FILENAME" | sed -E 's/(.)/\1\ /g' )"
+
+# Get initial position
+POSITION=$(( ( $( grep -n '\^' "$FILENAME" | cut -f1 -d: ) -1 ) * ARRAY_SHAPE -1 + $( grep -o '.*\^' "$FILENAME" | wc -c ) -1 ))
+MAP_ARRAY[POSITION]=X # Remove position after save
+
+# up = 0, right = 1, down = 2, left = 3, following 90 degree turn
+TURNS=0
+while true
+do
+  EXIT=1
+
+  # Get direction and travel 
+  DIRECTION=$(( TURNS % 4 ))
+  if [[ $DIRECTION -eq 0 ]] # up
+  then
+    TRAVEL=-$ARRAY_SHAPE
+    LIMIT=$(( POSITION % ARRAY_SHAPE ))
+  elif [[ $DIRECTION -eq 1 ]] # right
+  then
+    TRAVEL=1
+    LIMIT=$(( (POSITION / ARRAY_SHAPE + 1) * ARRAY_SHAPE )) # Never verified
+  elif [[ $DIRECTION -eq 2 ]] # down
+  then
+    TRAVEL=$ARRAY_SHAPE
+    LIMIT=$(( (POSITION % ARRAY_SHAPE) + (ARRAY_SHAPE * ARRAY_SHAPE) ))
+  elif [[ $DIRECTION -eq 3 ]] # left
+  then
+    TRAVEL=-1
+    LIMIT=$(( (POSITION / ARRAY_SHAPE) * ARRAY_SHAPE )) # Never verified
+  fi
+
+  while [[ ${MAP_ARRAY[$POSITION+$TRAVEL]} != '#' ]]
+  do
+    if [[ $POSITION -eq $LIMIT ]] # Walked out
+    then
+      EXIT=0
+      break
+    fi
+
+    MAP_ARRAY[POSITION]=X # Mark walking path
+    (( POSITION+=TRAVEL ))
+  done
+  
+  if [[ $EXIT -eq 0 ]] ; then break ; fi # Walked out
+
+  (( TURNS++ ))
+done
+
+# Count all coordinates
+printf "%s" "${MAP_ARRAY[@]}" | tee travel-path | sed 's/[^X]//g' | wc -c
+< travel-path fold -w $ARRAY_SHAPE

2024/day-6/test-input

@@ -0,0 +1,10 @@
+....#.....
+.........#
+..........
+..#.......
+.......#..
+..........
+.#..^.....
+........#.
+#.........
+......#...

2024/day-7/input

@@ -0,0 +1,850 @@
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+38531034: 6 759 9 276 36 933
+22169826336: 676 800 33 732 56
+6219757568: 9 5 709 15 8 8 88 34 6 8
+3011796480: 7 488 352 80 96 463
+2115750: 99 6 38 8 86 1 84 93
+235864382940: 736 156 356 6 90
+1208: 5 9 38 7 1 1 8 5 5 3 850 5
+1401: 106 58 8 2 87
+261398734: 3 66 547 409 9 76 7
+13517241: 58 6 475 7 7 13 4 6 2 7
+198887931: 5 8 86 137 6 52 47 4 95
+66539630664: 8 2 69 1 49 1 155 1 4 4 6
+3829574829: 4 7 871 96 42 4 5 2 8 4
+210872: 800 65 86 3 5 998 6 2
+491639555: 278 41 860 7 87 4 8 8
+3000446345: 71 418 3 337 5 4 6
+238535178: 5 118 5 53 4 322 7 4 80
+8287018777773: 274 98 87 437 4 866 3
+4853715092217: 970 1 7 43 50 92 210 8
+10400: 6 3 577 10 7
+334724384: 8 1 2 487 8 81 840 341
+831: 5 77 6 5
+1708025: 540 2 315 4 5 5 630
+4368960: 4 324 6 740 3
+709365600: 656 5 89 54 5 3 3
+1269313926: 28 2 5 347 7 6 9 2 444 8
+184904693: 7 55 75 8 4 18 505 2 96
+75131585: 75 51 796 5 9 7 5 396 2
+549981: 7 4 46 6 21 6 5 9 72 6 1 2
+4619908866429: 87 598 888 66 425 3
+81234530822: 5 321 1 8 9 1 91 5 7 545
+21949216: 71 3 3 9 1 1 603 7 8 5 2 9
+377: 347 28 1 1 1
+3923705: 2 9 22 615 5
+1775196500: 5 928 9 34 907 70 770
+1513952: 987 9 1 8 5 38 6 9 3 9 1 4
+60084313170: 862 99 9 8 238 2 46 88
+64254966056: 3 96 2 32 52 23 9 301 9
+1079: 5 2 987 81
+1057055: 6 12 66 42 6 54 7 815
+538588: 8 972 3 7 35 6
+39669: 8 6 8 53 47 5 797 97
+2200: 22 29 4 5 8
+3350421518: 84 5 44 4 1 428 9 5 12 6
+728426: 4 9 7 4 8 181 608 644 6
+9638460488609: 1 3 38 675 9 8 4 8 860 8
+33605379642: 49 712 1 676 45
+188328: 3 1 5 5 26 521 332 7 7
+99011: 150 65 4 7 634 867
+194175906: 49 7 55 402 7 8 8 90 5 1
+48556303: 75 40 9 95 49 9

2024/day-7/solution-1.awk

@@ -0,0 +1,46 @@
+#!/usr/bin/env awk
+
+BEGIN {
+  FS = "[: ]"
+  total = 0
+}
+{
+  sum = $1
+  num_opers = 2
+  num_of_nums = NF - 2
+  num_of_results = 1
+
+  # Create list of numbers
+  # Create list of results
+  for (i = 3; i <= NF; i++) {
+    nums[i-2] = $i
+  }
+  results[1] = nums[1]
+  # Starting applying additions to results
+  # Starting from second number
+  for (i = 2; i <= num_of_nums; i++) {
+    number = nums[i] 
+    for (j = 1; j <= num_of_results; j++) {
+      element = results[j]
+      results[j+num_of_results] = element * number
+      results[j] = results[j] + number
+    }
+    num_of_results *= num_opers
+  }
+  expected = ( num_of_nums - 1 ) * num_opers
+
+  # Check results
+  for (i=1; i <= num_of_results; i++) {
+    if ( results[i] == $1 ) {
+      start_val = i % num_of_nums
+      stack_num = (i - start_val) / num_of_nums
+      total = total + $1
+      break
+    }
+  }
+  delete results
+  delete nums
+}
+END {
+  print total
+}

2024/day-7/solution-2.awk

@@ -0,0 +1,53 @@
+#!/usr/bin/env awk
+
+# Just pre-compute all possible results
+# and check against the sum
+
+BEGIN {
+  FS = "[: ]"
+  total = 0
+}
+{
+  sum = $1
+  num_opers = 3 # +, *, ||
+  num_of_nums = NF - 2
+  num_of_results = 1
+
+  # Create list of numbers
+  for (i = 3; i <= NF; i++) {
+    nums[i-2] = $i
+  }
+  results[1] = nums[1]
+  # Starting applying operator
+  # Starting from second number
+  # index range of num_of_results is for each operator
+  # 1                  - num_of_results   - addition
+  # num_of_results+1   - num_of_results*2 - multiplication
+  # num_of_results*2+1 - num_of_results*3 - concat
+  for (i = 2; i <= num_of_nums; i++) {
+    number = nums[i] 
+    for (j = 1; j <= num_of_results; j++) {
+      element = results[j]
+      results[j] = results[j] + number # Add
+      results[j+num_of_results] = element * number # Mul
+      results[j+num_of_results*2] = (element "" number) + 0 # Concat
+    }
+    num_of_results *= num_opers 
+  }
+  expected = ( num_of_nums - 1 ) * num_opers
+
+  # Check results
+  for (i=1; i <= num_of_results; i++) {
+    if ( results[i] == $1 ) {
+      start_val = i % num_of_nums
+      stack_num = (i - start_val) / num_of_nums
+      total = total + $1
+      break
+    }
+  }
+  delete results
+  delete nums
+}
+END {
+  print total
+}

2024/day-8/input

@@ -0,0 +1,50 @@
+..........K........................A..............
+.K................................A...............
+......................................D.....A.....
+....................................6............D
+..................................................
+.............................d....................
+.........4.e.......................DT.B...........
+....................d.....D......A...........B....
+.............K....................................
+...........................k......................
+...w..............4.....................y.........
+........w.........................................
+..............g..k..............d..........y......
+.....w.....Q..............................T.......
+...............b..........k................6......
+.................................W...T............
+................w..............BW..T..............
+............g....4e.....................W.........
+.......1.................g.......................W
+........k..........................6.....0........
+.................a................................
+....................4.a........3.g..............7.
+.............m........................I.0.........
+..............K7..............V...................
+....Q................................I............
+..9........b......................I...............
+...................d..............................
+.......e..........................................
+....e...........t..E................3.............
+......1..aQ........t....v.....3..........I..0.....
+...........................v.t.....3.7............
+..........i.......m........M......................
+...Q..29..a...................m...................
+...9......q..........mt...........................
+....1...............Y.....M.........7.............
+..........b..1...E.v..Y...........................
+................v..........q...............0......
+..................E.................5.............
+9...i..2b................................8........
+.....q..2............Y..M.........................
+............q...............................V.....
+...i.................................V............
+.i..............E............M....................
+.........................................G........
+............8................Y....................
+.........2................8..............5........
+......................................5....V......
+............................................G.....
+.....................................5...........G
+.................................8................

2024/day-8/solution-1.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+
+FILE=input
+LEN=$( head -1 "$FILE" | sed -E 's/(.)/\1\ /g' | awk '{printf NF}' )
+
+read -r -a MAP_ARRAY <<< "$( < "$FILE" sed -E 's/(.)/\1\ /g' | paste -s -d ' ' )"
+read -r -a SHADOW_ARRAY <<< "$( < "$FILE" sed -E 's/(.)/\1\ /g' | paste -s -d ' ' )"
+#printf "MAP_LEN: %s, NF: %s\n" "${#MAP_ARRAY[@]}" "$LEN" >&2
+
+for CHAR in $( < "$FILE" grep -Eo '[^\.]' | sort -u | paste -s -d' ' )
+do
+  # Get indices for antennae
+  LINE="$( 
+    for (( i=0; i<${#MAP_ARRAY[@]}; i++ ))
+    do
+    if [[ ${MAP_ARRAY[i]} == "$CHAR" ]]
+    then
+      printf "%s " "$i"
+    fi
+    done
+  )"
+  #printf "%s\n" "$LINE" >&2
+  read -r -a IDX_ARRAY <<< "$LINE"
+  #printf "idx:  %s " "${IDX_ARRAY[@]}" >&2
+  #printf "\n" >&2
+
+  # Get all combinations
+  for (( i=0; i<${#IDX_ARRAY[@]}-1; i++ ))
+  do
+    A=${IDX_ARRAY[i]}
+    for (( j=i+1; j<${#IDX_ARRAY[@]}; j++ ))
+    do
+      B=${IDX_ARRAY[j]}
+      DIFF=$(( B - A ))
+      VDIFF=$(( (B / LEN) - (A / LEN) ))
+      HEAD=$(( A - DIFF ))
+      TAIL=$(( B + DIFF ))
+      HEADVDIFF=$(( (A / LEN) - (HEAD / LEN) ))
+      TAILVDIFF=$(( (TAIL / LEN) - (B / LEN) ))
+      printf "char: %s, A: %s, B: %s, DIFF: %s, VDIFF: %s, HEAD: %s, HEADVDIFF: %s, TAIL: %s, TAILVDIFF: %s\n"  "$CHAR" "$A" "$B" "$DIFF" "$VDIFF" "$HEAD" "$HEADVDIFF" "$TAIL" "$TAILVDIFF" >&2
+      # Check if out of bounds
+      if [[ $HEAD -lt ${#MAP_ARRAY[@]} ]] && \
+         [[ $HEAD -ge 0 ]] && \
+         [[ $HEADVDIFF -eq $VDIFF ]]
+      then
+        SHADOW_ARRAY[HEAD]=X # Mark on shadow map
+        echo $VALUE >> values
+      fi
+      if [[ $TAIL -lt ${#MAP_ARRAY[@]} ]] && \
+         [[ $TAIL -ge 0 ]] && \
+         [[ $TAILVDIFF -eq $VDIFF ]]
+      then
+        SHADOW_ARRAY[TAIL]=X # Mark on shadow map
+        echo $VALUE >> values
+      fi
+    done
+  done
+  unset IDX_ARRAY
+
+done
+printf "%s" "${SHADOW_ARRAY[@]}" | fold -w "$LEN" | sed -E 's/(.)/\1\ /g'
+printf "\n"
+printf "%s" "${SHADOW_ARRAY[@]}" | grep -o 'X' | wc -l

2024/day-8/solution-2.sh

@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+
+FILE=input
+LEN=$( head -1 "$FILE" | sed -E 's/(.)/\1\ /g' | awk '{printf NF}' )
+
+read -r -a MAP_ARRAY <<< "$( < "$FILE" sed -E 's/(.)/\1\ /g' | paste -s -d ' ' )"
+read -r -a SHADOW_ARRAY <<< "$( < "$FILE" sed -E 's/(.)/\1\ /g' | paste -s -d ' ' )"
+#printf "MAP_LEN: %s, NF: %s\n" "${#MAP_ARRAY[@]}" "$LEN" >&2
+
+for CHAR in $( < "$FILE" grep -Eo '[^\.]' | sort -u | paste -s -d' ' )
+do
+  # Get indices for antennae
+  LINE="$( 
+    for (( i=0; i<${#MAP_ARRAY[@]}; i++ ))
+    do
+    if [[ ${MAP_ARRAY[i]} == "$CHAR" ]]
+    then
+      printf "%s " "$i"
+    fi
+    done
+  )"
+  #printf "%s\n" "$LINE" >&2
+  read -r -a IDX_ARRAY <<< "$LINE"
+  #printf "idx:  %s " "${IDX_ARRAY[@]}" >&2
+  #printf "\n" >&2
+
+  # Get all combinations
+  for (( i=0; i<${#IDX_ARRAY[@]}-1; i++ ))
+  do
+    A=${IDX_ARRAY[i]}
+    SHADOW_ARRAY[A]=X
+    for (( j=i+1; j<${#IDX_ARRAY[@]}; j++ ))
+    do
+      B=${IDX_ARRAY[j]}
+      SHADOW_ARRAY[B]=X
+      DIFF=$(( B - A ))
+      VDIFF=$(( (B / LEN) - (A / LEN) ))
+      # Assign heads
+      HEADC=1
+      while true
+      do
+        HEAD=$(( A - DIFF * HEADC ))
+	if [[ ${SHADOW_ARRAY[HEAD]} == "X" ]]; then (( HEADC++ )); continue ; fi
+	HEADVDIFF=$(( (A / LEN) - (HEAD / LEN) ))
+        # Check if out of bounds
+        if [[ $HEAD -lt ${#MAP_ARRAY[@]} ]] && \
+           [[ $HEAD -ge 0 ]] && \
+	   [[ $HEADVDIFF -eq $(( VDIFF * HEADC )) ]]
+        then
+          SHADOW_ARRAY[HEAD]=X # Mark on shadow map
+	  (( HEADC++ ))
+        else
+          break
+        fi
+      done
+      # Assign tails
+      TAILC=1
+      while true
+      do
+        TAIL=$(( B + DIFF * TAILC ))
+	if [[ ${SHADOW_ARRAY[TAIL]} == "X" ]]; then (( TAILC++ )); continue ; fi
+	TAILVDIFF=$(( (TAIL / LEN) - (B / LEN) ))
+        # Check if out of bounds
+        if [[ $TAIL -lt ${#MAP_ARRAY[@]} ]] && \
+           [[ $TAIL -ge 0 ]] && \
+	   [[ $TAILVDIFF -eq $(( VDIFF * TAILC )) ]]
+        then
+          SHADOW_ARRAY[TAIL]=X # Mark on shadow map
+	  (( TAILC++ ))
+        else
+          break
+        fi
+      done
+      #printf "char: %s, A: %s, B: %s, DIFF: %s, VDIFF: %s, HEAD: %s, HEADVDIFF: %s, TAIL: %s, TAILVDIFF: %s\n"  "$CHAR" "$A" "$B" "$DIFF" "$VDIFF" "$HEAD" "$HEADVDIFF" "$TAIL" "$TAILVDIFF" >&2
+    done
+  done
+  unset IDX_ARRAY
+
+done
+#printf "%s" "${SHADOW_ARRAY[@]}" | fold -w "$LEN" | sed -E 's/(.)/\1\ /g'
+#printf "\n"
+printf "%s" "${SHADOW_ARRAY[@]}" | grep -o 'X' | wc -l

2024/day-8/test-input

@@ -0,0 +1,12 @@
+............
+........0...
+.....0......
+.......0....
+....0.......
+......A.....
+............
+............
+........A...
+.........A..
+............
+............

2024/day-9/solution-1.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+
+FILE=input
+# Sparse sequence
+read -r -a SPARSE_ARRAY <<< "$(
+  INDEX=0
+  FILE_ID=0
+  while read -r CHAR
+  do
+    if [[ $(( INDEX % 2 )) -eq 0 ]]
+    then
+      for (( i=1; i<=$CHAR; i++ )) do printf "%s " "$FILE_ID"
+      done
+      (( FILE_ID++ ))
+    else
+      for (( i=1; i<=$CHAR; i++ ))
+      do
+        printf ". "
+      done
+    fi
+    (( INDEX++ ))
+  done <<< "$( sed -E 's/(.)/\1\n/g' "$FILE" | grep -v '^$' )"
+)"
+#printf "%s" "${SPARSE_ARRAY[@]}"
+#printf "\n"
+printf "Sparse array len: %s\n" "${#SPARSE_ARRAY[@]}"
+
+# Reverse feed
+read -r -a FEED_ARRAY <<< "$( 
+  for (( i=0; i<${#SPARSE_ARRAY[@]}; i++ ))
+  do
+    if [[ ${SPARSE_ARRAY[i]} != "." ]]
+    then
+      printf "%s " "${SPARSE_ARRAY[i]}"
+    fi
+  done
+)"
+#printf "%s" "${FEED_ARRAY[@]}"
+#printf "\n"
+printf "Reverse feed len : %s\n" "${#FEED_ARRAY[@]}"
+
+# Generate checksum for sparse array
+CHECKSUM=0
+i=0
+j=$(( ${#FEED_ARRAY[@]} - 1 ))
+for (( k=0; k<${#SPARSE_ARRAY[@]}; k++ ))
+do
+  if [[ $i -gt $j ]]; then break ; fi
+  if [[ ${SPARSE_ARRAY[k]} == '.' ]] 
+  then
+    (( CHECKSUM += k * FEED_ARRAY[j] ))
+    (( j-- ))
+  else
+    (( CHECKSUM += k * FEED_ARRAY[i] ))
+    (( i++ ))
+  fi
+done
+printf "%s" "$CHECKSUM"

2024/day-9/solution-2.sh

@@ -0,0 +1,119 @@
+#!/usr/bin/env bash
+
+FILE=$1
+# Sparse sequence
+read -r -a SPARSE_ARRAY <<< "$(
+  INDEX=0
+  FILE_ID=0
+  while read -r CHAR
+  do
+    if [[ $(( INDEX % 2 )) -eq 0 ]]
+    then
+      for (( i=1; i<=CHAR; i++ )) 
+      do 
+        printf "%s " "$FILE_ID"
+      done
+      (( FILE_ID++ ))
+    else
+      for (( i=1; i<=CHAR; i++ ))
+      do
+        printf "%s " '-1'
+      done
+    fi
+    (( INDEX++ ))
+  done <<< "$( sed -E 's/(.)/\1\n/g' "$FILE" | grep -v '^$' )"
+)"
+#printf "%s" "${SPARSE_ARRAY[@]}" | fold -w 100
+#printf "\n"
+printf "Sparse array len: %s\n" "${#SPARSE_ARRAY[@]}"
+SHADOW_ARRAY=( "${SPARSE_ARRAY[@]}" )
+
+# Start by working backwards
+j=$(( ${#SPARSE_ARRAY[@]} - 1 )) # Moveable index since file blocks jump
+k=0 # SHADOW_ARRAY cursor
+LAST_SKIP=9999
+while [[ $j -ge 0 ]]
+do
+  # Find a file
+  if [[ ${SPARSE_ARRAY[j]} -eq -1 ]] 
+  then
+    # Not a file
+    (( j-- ))
+    continue
+  fi
+
+  # Get file size
+  # j moved to index before file head
+  FILE_SIZE=0
+  ID=${SPARSE_ARRAY[j]}
+  while [[ ${SPARSE_ARRAY[j]} == "$ID" ]]
+  do
+    (( FILE_SIZE++ ))
+    (( j-- ))
+  done
+  #printf "File ID: %s, File size: %s\n" "$ID" "$FILE_SIZE" 2>&1
+
+  # Since search space is constantly decreasing
+  # Contiguous space can only keep getting smaller 
+  if [[ $FILE_SIZE -ge $LAST_SKIP ]]
+  then
+    printf "File %s size %s skipped. Last skip: %s\n" "$ID" "$FILE_SIZE" "$LAST_SKIP"
+    continue
+  fi
+
+  # Search for available contiguous space
+  # Search from start until the file itself
+  k=0
+  while [[ $k -le $j ]]  && [[ $k -le ${#SHADOW_ARRAY[@]} ]]
+  do
+    CONT_SPACE=0
+
+    # Skip ahead until first match of space
+    while [[ ${SHADOW_ARRAY[k]} -ne -1 ]] && [[ $k -le ${#SHADOW_ARRAY[@]} ]]
+    do
+      (( k++ ))
+    done
+
+    # Space found, now get contiguous length
+    while [[ ${SHADOW_ARRAY[k]} -eq -1 ]] && [[ $k -le ${#SHADOW_ARRAY[@]} ]]
+    do
+      (( CONT_SPACE++ ))
+      (( k++ ))
+    done
+    
+    # Space length is ok, can proceed
+    if [[ $FILE_SIZE -le $CONT_SPACE ]] ;then break; fi
+  done
+
+  # Space length ok, can proceed
+  if [[ $FILE_SIZE -le $CONT_SPACE ]]
+  then
+    # Move cursor to head of contiguous space
+    (( k-= CONT_SPACE ))
+    while [[ $FILE_SIZE -gt 0 ]] && \
+          [[ ${SHADOW_ARRAY[k]} -eq -1 ]] && \
+          [[ ${SHADOW_ARRAY[j+FILE_SIZE]} -ne -1 ]]
+    do
+      # Perform copy
+      SHADOW_ARRAY[k]=$ID
+      SHADOW_ARRAY[j+FILE_SIZE]=-1
+      (( k++ ))
+      (( FILE_SIZE-- ))
+    done
+  else
+    LAST_SKIP=$FILE_SIZE
+    printf "File %s skipped. File size: %s\n" "$ID" "$FILE_SIZE"
+    continue
+  fi
+done
+#printf "%s " "${SHADOW_ARRAY[@]}" | fold -w 100 | tee final-result | cat
+printf "%s " "${SHADOW_ARRAY[@]}" > final-result
+#printf "\n"
+
+# Generate checksum for shadow array
+CHECKSUM=0
+for (( i=0; i<${#SHADOW_ARRAY[@]}; i++ ))
+do
+  if [[ ${SHADOW_ARRAY[i]} -ne -1 ]] ;then (( CHECKSUM += i * SHADOW_ARRAY[i] )); fi
+done
+printf "%s\n" "$CHECKSUM"

2024/day-9/test-input

@@ -0,0 +1 @@
+2333133121414131402