剑指 Offer 51. 数组中的逆序对 #190
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归并排序的merge过程,如果left最后有剩余,应该继续累积逆序对 |
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剑指 Offer 51. 数组中的逆序对
剑指 Offer 51. 数组中的逆序对 标签:树状数组、线段树、数组、二分查找、分治、有序集合、归并排序 难度:困难 题目链接 剑指 Offer 51. 数组中的逆序对 - 力扣 题目大意 描述:给定一个数组 nums。 要求:计算出数组中的逆序对的总数。 说明: 逆序对:在数组中的两个数字,如果前面一个数字大于后面的数字,则这两个数字组成一个逆序对...
https://algo.itcharge.cn/Solutions/Offer/shu-zu-zhong-de-ni-xu-dui-lcof/
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