Day 7

07/02.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+read line
+positions=( ${line//,/ } )
+min_consumption=-1
+max_coordinate=-1
+consumptions=( 0 )
+for position in ${positions[@]}; do
+  if [ $max_coordinate -eq -1 ] || [ $position -gt $max_coordinate ]; then
+    max_coordinate=$position
+  fi
+done
+for i in $(seq $max_coordinate); do
+  consumptions+=( $((consumptions[i-1]+i)) )
+done
+for i in $(seq 0 $max_coordinate); do
+  curr_consumption=0
+  for position in ${positions[@]}; do
+    temp_curr_consumption=$((position-i))
+    temp_curr_consumption=${temp_curr_consumption#-}
+    curr_consumption=$((curr_consumption+consumptions[temp_curr_consumption]))
+  done
+  if [ $min_consumption -eq -1 ] || [ $curr_consumption -lt $min_consumption ]; then
+    min_consumption=$curr_consumption
+  fi
+done
+echo $min_consumption