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Re:the organizing committee can only afford to set the system up such that there will be only one way to transfer information from one university to another without passing the same university twice.

Posted by 006794 at 2006-12-09 19:54:05 on Problem 3140
In Reply To:the organizing committee can only afford to set the system up such that there will be only one way to transfer information from one university to another without passing the same university twice. Posted by:1083_3 at 2006-12-09 19:46:14

关键的一句
  表示它是一棵树

Followed by:

是一棵树? 也就是说m=n-1 ? (22) 1083_3 2006-12-09 20:04:24
- 图论常识 (0) frkstyc 2006-12-09 20:10:17
  - 那题目给的数据范围不是故意恶心人嘛 (10) 1083_3 2006-12-09 20:18:59
    - bingo (16) ArXoR 2006-12-09 20:19:45
    - m大是因为有重边 (16) forgotten 2006-12-09 22:45:48
      - 有重边就不叫树了吧？ (0) MrRight 2006-12-09 22:54:24
    - 是常识就怎么都不算恶你 (16) frkstyc 2006-12-09 22:57:59
      - 不过还是恶掉了很多人 (0) cheapwine 2006-12-09 23:43:52
- 嗯...m的值给的很恶心..... (0) FinalLaugh 2006-12-09 20:30:47
  - 刚学了种叫"容器"的东西,拿来写这个题,一直WA,哪位好心人能帮我看一下啊 (1330) lxhgww 2006-12-09 20:36:00
    - 怎么没有人理我啊!WA+CE得哭了,55555555555555555! (1480) lxhgww 2006-12-09 21:25:57
      - 我也是wa到不行，谁给组数据？ (0) 1083_3 2006-12-09 21:43:19
      - inf是不是小了点? (0) ArXoR 2006-12-09 21:46:07
        小吗?有人教我在数字后面加个LL数字就变得很大了啊,我又重新写了一个,这次没用inf,还是WA!(代码见内) (1014) lxhgww 2006-12-09 22:40:19
        LL表示该数为long long类型，值该是多少就是多少 (1138) wywcgs 2006-12-09 22:42:06

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