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这个题是不是求强连通分量，再把每个强连通分量分别看成一个点，再看度为0的强连通分量里面的点的个数

Posted by knuthocean at 2005-09-01 10:37:55 on Problem 2186

：不会

Followed by:

咦，怎么没人回？难道热心的frkstyc还没有军训完？ (7) knuthocean 2005-09-01 10:42:37
- ft... (0) frkstyc 2005-09-01 10:43:27
  - 呵呵，仰慕：） (0) magic_pig 2005-09-01 10:44:38
    - ............... (0) frkstyc 2005-09-01 10:46:21
就是求SCC，然后再数一下支持数 (7) frkstyc 2005-09-01 10:50:34
- SCC是什么？ (0) knuthocean 2005-09-01 11:00:38
  - 明白了，SCC是strongly connected component!Thank you! (0) knuthocean 2005-09-01 11:01:22
- 什么是支持数??...... (0) cannie 2005-10-23 20:35:00
  - 就是有多少牛喜欢 (0) frkstyc 2005-10-23 20:35:53
    - 强烈要求您写个pku summary....... (0) cannie 2005-10-23 21:03:09
      - RE (0) semonteer 2005-10-23 21:04:06

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