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Day 13 Part 1 working

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Clement
2024-12-13 14:33:46 +08:00
parent b33653672c
commit 3764b25f6d
4 changed files with 1384 additions and 0 deletions
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1279
2024/day-13/input Normal file
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2024/day-13/solution-1.sh Normal file
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#!/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"

45
2024/day-13/solution-2.sh Normal file
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#!/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]}"
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"

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2024/day-13/test-input-1 Normal file
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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