Hello All! As usual, playing another round of golf turns my mind to another round of questions...
My solution below works for all test cases: -lp0a for$=(@F){@;=grep{$*=$_;grep$*eq$_,@;?@;:@[EMAIL PROTECTED],[EMAIL PROTECTED]@I thought, however, that I could save a stroke by replacing the first grep statement with a map: -lp0a for$=(@F){@;=map{$*=$_;grep$*eq$_,@;?@;:@[EMAIL PROTECTED],[EMAIL PROTECTED]@ This solution (though seeming to work at first) fails on test 81 (seen at the bottom of this post). Maybe it actually passes, but I didn't have the patience to wait for it... I noticed Juho mentioned something similar about test 81. Why does this substitution (grep to map) make such a huge difference in running time? Both statements should return the same array, right? Many thanks for any thoughts. -Riley (o0lit3) Test case 81: 0000000 00 000000 000 000 000000 0000 00000 0000 00000 0000000 00 00000000 0 0 00000000