179 is good enough

Author: cgsdev0

2025/day06/p2-golf.sh

@@ -0,0 +1,4 @@
+set -f;mapfile -t a;for((h=${#a[@]}-1;r<${#a};++r))
+do n=${a[h]:r:2};$n||o=$_;${n:1}||o=_;for((c=0;c<h;))
+do printf ${a[c++]:r:1};done;printf $o
+done|sed 's=. *_=+=g;s=$=0\n='|bc