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线段树 VS 树状数组线段确实很强大，而且似乎特别受大家欢迎。不过能用树状数组的题最好尽量用树状数组做。 这题我用线段树的耗时是32ms，改写树状树组后耗时0ms，而且代码容易写一些。 Followed by: Post your reply here: |
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