牛客多校第五场 D.inv 2018-8-02 14:17 | 4,429 | 0 | C++,树状数组,牛客多校,算法 | Ryan 343 字 | 4 分钟 链接:https://www.nowcoder.com/acm/contest/143/D 来源:牛客网 题面 Kanade has an even number n and a permutation b of all of the even numbers in [1,n] Let a denote an array [1,3,5....n-1…