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dp...[unsigned long]*[unsigned long]...直接公式吧

Posted by ArXoR at 2005-02-15 14:52:49 on Problem 1942
In Reply To:弱弱问一下：这题就是求组合数吧？直接DP会不会超时呀？ Posted by:seol at 2005-02-15 13:21:47

> 大家都是0ms，汗~~~~

Followed by:

Re:dp...[unsigned long]*[unsigned long]...直接公式吧 (64) seol 2005-02-15 15:07:24
- 我的意思是,,,,,记录的状态不是一般的多....dp行不通吧 (76) ArXoR 2005-02-15 15:11:02
关于这道题，我要说.....................好题！............ (183) seol 2005-02-15 16:54:11
- Re:关于这道题，我要说.....................好题！............ (219) ArXoR 2005-02-15 20:49:08
  - Re:关于这道题，我要说.....................好题！............ (16) cshqzhang 2005-04-26 19:46:17
    - 当然够用了，答案的范围就在int64范围内 (20) TN 2005-04-26 19:47:55
      - 但是如果要直接算，，乘法的过程就会超，，不会用杨辉吧．．．． (0) Essence_me 2005-09-07 00:29:30

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