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为什么要用set?为什么不自己实现一些数据结构?

Posted by frkstyc at 2006-06-26 02:01:34 on Problem 2843
In Reply To:Re:先考虑一下一维的情况,然后扩展到二维 Posted by:xiaxia at 2006-06-26 01:52:05
> 一维的用集合表示没有被删除的cell
> 例如 {1 2 3 4 5 6}
> 删除3,4 后就是{1 2 5 6}
> 然后如果查找1,5之间的未删除的就是1 2 5。
> 这样相当于先找到最前面的1往后找直到大于5或者到头了。
> 是这个意思吗? 二维的就是外面多一层循环。
> 我用set做的结果还是超时
> 
> 

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