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n(1/1+1/2+1/3+...+1/n)=O(nlogn)，所以两重循环OK

Posted by frkstyc at 2005-08-16 00:01:57 on Problem 1868
In Reply To:做到O(n)不需要技巧,做到nlogn还是要一点的 Posted by:xfxyjwf at 2005-08-15 23:57:36

Followed by:

没看懂 (23) xfxyjwf 2005-08-16 00:10:55
- 你快去切了这个题，用不了多少时间 (27) frkstyc 2005-08-16 00:12:14
  - 不是已经说了不能打数字了么?怎么切? (0) xfxyjwf 2005-08-16 00:13:58
    - 刚才不给你打了一份么，copy-paste!!! (0) frkstyc 2005-08-16 00:14:51
      - 那得花不少时间...还有括号什么的,都得一点点paste... (0) xfxyjwf 2005-08-16 00:15:41
        ()[]{}&%，符号齐了，go (0) frkstyc 2005-08-16 00:16:49
    - 况且我整个程序只用了7个0，两个1，1个2 (0) frkstyc 2005-08-16 00:16:02
      - ......你只用字母键和鼠标写一个程序试试? (0) xfxyjwf 2005-08-16 00:17:42
        你就不用word的find-replace搞 (0) frkstyc 2005-08-16 00:18:43

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