Cleaner mark counter

2024/day-8/solution-1.sh

@@ -48,13 +48,6 @@ do
   unset IDX_ARRAY
 
 done
-COUNT=0
-for (( i=0; i<${#SHADOW_ARRAY[@]}; i++ ))
-do
-  if [[ ${SHADOW_ARRAY[i]} == "X" ]]
-  then
-    (( COUNT++ ))
-  fi
-done
-printf "%s\n" "$COUNT"
 printf "%s" "${SHADOW_ARRAY[@]}" | fold -w "$LEN" | sed -E 's/(.)/\1\ /g'
+printf "\n"
+printf "%s" "${SHADOW_ARRAY[@]}" | grep -o 'X' | wc -l