Day 2

2021-12-02 10:49:38 +01:00
parent b37696aca4
commit 084205f6d7
2 changed files with 38 additions and 0 deletions
--- a/02/02.sh
+++ b/02/02.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+aim=0
+depth=0
+horizontal=0
+while read current; do
+  if [[ "$current" == "down "* ]]; then
+    current_tmp=${current/down /}
+    aim=$((aim+current_tmp))
+  elif [[ "$current" == "up "* ]]; then
+    current_tmp=${current/up /}
+    aim=$((aim-current_tmp))
+  elif [[ "$current" == "forward "* ]]; then
+    current_tmp=${current/forward /}
+    horizontal=$((horizontal+current_tmp))
+    depth=$((depth+aim*current_tmp))
+  fi
+done
+
+echo $((depth*horizontal))