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每个exchange point只能使用一次怎么可能YES呢

Posted by ziqilau at 2008-09-05 14:55:17 on Problem 1860 and last updated at 2008-09-05 14:55:36
In Reply To:这题样例是错的吧? Posted by:ziqilau at 2008-09-05 02:04:34

> 这题样例是错的吧?
> 怎么可能YES呢？没可能

Followed by:

Re:每个exchange point只能使用一次怎么可能YES呢 (30) zhzz 2008-10-01 16:34:37
- Re:每个exchange point只能使用一次怎么可能YES呢 (68) chhaya 2009-10-08 21:19:34
  - Re:每个exchange point只能使用一次怎么可能YES呢 (48) aliu0932 2009-10-31 11:19:11
    - Re:每个exchange point只能使用一次怎么可能YES呢 (37) zhukeren 2010-07-25 17:14:35
      - Re:每个exchange point只能使用一次怎么可能YES呢 (42) It_is_rainning_now 2010-10-16 09:05:15
        我的理解是：once是为了说明后面的10^4，意思是如果no more than once不会超过10^4，给个范围。 (17) zerocpp 2011-05-02 02:38:13
    - Re:每个exchange point只能使用一次怎么可能YES呢 (14) renwei6616192 2011-05-02 10:28:25

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每个exchange point只能使用一次 怎么可能YES呢

每个exchange point只能使用一次怎么可能YES呢