「🎉」 init(2025): day 1

2024/day01/part1.sh

@@ -0,0 +1,24 @@
+if test -f cleaned_input.txt; then
+	INPUT=$(cat cleaned_input.txt)
+else
+	INPUT="3   4\n4   3\n2   5\n1   3\n3   9\n3   3"
+fi
+
+
+L1=$(printf "%b" "$INPUT" | awk '{print $1}' | sort -n)
+L2=$(printf "%b" "$INPUT" | awk '{print $2}' | sort -n)
+
+L1_ARRAY=($L1)
+L2_ARRAY=($L2)
+
+SUM=0
+
+for i in ${!L1_ARRAY[@]}; do
+	DIFF=$(( ${L1_ARRAY[$i]} - ${L2_ARRAY[$i]} ))
+	DIFF=${DIFF#-} #get absolute value
+	SUM=$(( $SUM + $DIFF ))
+	#echo $SUM
+done
+
+echo $SUM
+