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Re:是数据范围太大了

Posted by xiaxia at 2006-03-24 23:50:34 on Problem 2785
In Reply To:tle 郁闷~~数据太多了阿 Posted by:xiaxia at 2006-03-24 23:50:04

Followed by:

应该怎么做呢？ (0) xiaxia 2006-03-25 00:11:05
- 枚举两个两个的和，O(n^2lgn) (0) frkstyc 2006-03-25 00:12:56
  - 枚举a b 然后枚举c d 然后检查其中相反数？ (0) first 2006-03-25 00:19:08
    - en (0) frkstyc 2006-03-25 00:21:49
      - 我竟然枚举abcd了，枚举就是n^2阿那个lgn怎么来的望赐教 (0) first 2006-03-25 00:25:38
  - 是把他们排序才有N^2logN的吧，我这样做了，结果超时 (0) zerocool_08 2006-03-25 00:29:41
    - 为什么要排序呢开始我用map做的枚举abcd tle了 (0) first 2006-03-25 00:42:08
      - 弱弱的问一下，map是什么东西，是STL里的东西吗？ (0) zerocool_08 2006-03-25 00:45:23
        right (0) frkstyc 2006-03-25 00:54:40

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