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贴原来AC的代码也TLE了

Posted by wyq at 2008-04-04 20:48:11 on Problem 1002 and last updated at 2008-04-04 20:51:53 
原来AC的代码也是挺慢的，1800+ms AC的，可是现在把去年AC的代码又提交了几次 都TLE了，难道是服务器速度比原来慢了？sigh...

我是把字符串转换成为int(没用sprintf，是自己写的转换)，用STL中的sort排序，然后再计算次数的，计算次数的部分复杂度是O(n)，加上排序的复杂度应该不会超过O(n^2)吧，还是超时了，这点想不明白了...

请教怎么做减少时间，看到好多都是几百ms AC的，想知道做法，请不吝赐教^^
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