Comment by rak1507

What's so hard about Day 12? It's just

    +/'{x:".",x;H:(-1+;1+i-)@'+|\m*i:!#m:x=\:"#."
     R:(x=x)({[h;d;x;y;z](z#0),+\(((-z)_~"#"=x)&z_d>z)*(*y),(-z+1)_y-0^y h}. H)[x]/y
     (*|R)-R@*|0,&1_*+m}.''1({("?"/:5#,x;,/5#,y)}.')\@[;1;.:]'" "\:'0:`:i/12.txt