Discussion @ 1152. False Mirrors @ Timus Online Judge

Koala Just DFS is OK. My program uses 0.3 sec. (-) [1] // Problem 1152. False Mirrors 21 Feb 2003 18:03

bug27 Re: Just DFS is OK. My program uses 0.3 sec. (-) // Problem 1152. False Mirrors 14 Apr 2005 10:01

My DFS program uses 0.328 sec.I just cut branches that even if all the mirror will be destroyed in the next turn,it's worse than the now best solution.

Can those who have better solution give some hints?

Discussion of Problem 1152. False Mirrors