From 22fa29f09d846989a0b250d15fb7d1db3506fedc Mon Sep 17 00:00:00 2001
From: Pierre Jeanjean <rhiobet@gmail.com>
Date: Tue, 7 Dec 2021 12:00:07 +0100
Subject: [PATCH] Day 7

---
 07/01.sh | 23 +++++++++++++++++++++++
 07/02.sh | 27 +++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100755 07/01.sh
 create mode 100755 07/02.sh

diff --git a/07/01.sh b/07/01.sh
new file mode 100755
index 0000000..60f76fe
--- /dev/null
+++ b/07/01.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+read line
+positions=( ${line//,/ } )
+min_consumption=-1
+max_coordinate=-1
+for position in ${positions[@]}; do
+  if [ $max_coordinate -eq -1 ] || [ $position -gt $max_coordinate ]; then
+    max_coordinate=$position
+  fi
+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+temp_curr_consumption))
+  done
+  if [ $min_consumption -eq -1 ] || [ $curr_consumption -lt $min_consumption ]; then
+    min_consumption=$curr_consumption
+  fi
+done
+echo $min_consumption
diff --git a/07/02.sh b/07/02.sh
new file mode 100755
index 0000000..8ff3153
--- /dev/null
+++ b/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