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请问这题高效率的算法是什么啊？我实在想不出用什么方法几百ms就ac了啊

Posted by b412860771 at 2006-04-21 01:31:01 on Problem 2002

Followed by:

枚举对角线用hash处理一下就差不多了 (0) frkstyc 2006-04-21 02:17:24
- 我一般都是用bsearch()的 (0) oeym 2006-05-05 14:18:32
- Re:枚举对角线用hash处理一下就差不多了 (8) ichoyb 2007-07-11 14:07:00
  - 怎么hash? (12) ichoyb 2007-07-15 22:38:17
  - (n^2)*logn TLE 额。。。 (97) alpc62 2007-09-24 13:58:13

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