[CC-COUPLES]Couples sit next to each other 题目大意: 有\(n(n\le5\times10^5)\)对小伙伴共\(2n\)个人坐成一圈.刚开始编号为\(i\)的人坐在第\(i\)个座位上.每次可以让相邻的两个人交换座位.问要让每一对小伙伴的座位都相邻至少需要多少次交换? 思路: 答案为每一对两个人距离之和-"交叉"的小伙伴的对数.树状数组维护即可. 时间复杂度\(\mathcal O(n\log n)\). 源代码: #include<…
N couples sit in 2N seats arranged in a row and want to hold hands. We want to know the minimum number of swaps so that every couple is sitting side by side. A swap consists of choosing any two people, then they stand up and switch seats. The people…
N couples sit in 2N seats arranged in a row and want to hold hands. We want to know the minimum number of swaps so that every couple is sitting side by side. A swapconsists of choosing any two people, then they stand up and switch seats. The people a…
Damn Couples Time Limit: 1 Second Memory Limit: 32768 KB As mentioned in the problem "Couples", so many new words appear on the internet. Another special one is "Damn Couples", a club which consists of people who have failed on lo…
N couples sit in 2N seats arranged in a row and want to hold hands. We want to know the minimum number of swaps so that every couple is sitting side by side. A swap consists of choosing any two people, then they stand up and switch seats. The people…
N couples sit in 2N seats arranged in a row and want to hold hands. We want to know the minimum number of swaps so that every couple is sitting side by side. A swap consists of choosing any two people, then they stand up and switch seats. The people…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/couples-holding-hands/description/ 题目描述: N couples sit in 2N seats arranged in a row and want to hold hands. We want to know the minimum number of swaps so th…
When marriage therapist Sharon Gilchrest O'Neill met with new clients recently, she asked them why they were seeking therapy. The couple told her they'd spent years arguing over finances and recently had their worst-ever blowup. The husband complaine…
