diff options
Diffstat (limited to '2021/2.sh')
-rwxr-xr-x | 2021/2.sh | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/2021/2.sh b/2021/2.sh new file mode 100755 index 0000000..360b5fc --- /dev/null +++ b/2021/2.sh @@ -0,0 +1,15 @@ +#!/usr/bin/env bash +{ + echo 'h=0' + echo 'd=0' + cat 2.in | sed 's/forward/h+=/; s/down/d+=/; s/up/d-=/; s/^/: $((/; s/$/))/' + echo 'echo $((h * d))' +} | bash + +{ + echo 'h=0' + echo 'a=0' + echo 'd=0' + cat 2.in | sed 's/forward \(.*\)/: $((h+=\1)) $((d+=a*\1))/; s/down \(.*\)/: $((a+=\1))/; s/up \(.*\)/: $((a-=\1))/' + echo 'echo $((h * d))' +} | bash |