Re (tilly) 2: PGA Golf, Round 1 - Results

[tilly]

Agreed. 22 is the best that I have.

For a bit I mistakenly thought I had a 20 char solution in the form of:

sub hole{map/^(.*?)\1+\z/s,@_}

but the rules say that if a single thing is returned, then it will be in scalar context. In scalar context this solution is wrong (as I indicated in an "oops" update).