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Re:不就是求逆序数码？离散化+树状数组水的过吗？In Reply To:不就是求逆序数码？离散化+树状数组水的过吗？ Posted by:jdx2013519 at 2009-07-29 22:33:26 大牛 这样建立 树状数组的啊 我知道树状数组 用于快速求和 可是 你说用 在这个上怎么实现啊？ 小说一下思路吧！我用的归并，感觉 不爽！ Followed by:
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