题:https://codeforces.com/contest/1311/problem/F 题意:给定x轴上的点以及他们的速度v,只在x轴上运动,求最小的dis之和,注意,这里的时间是可随意的,比如对于其中一个点 i 来说,只要其他点运动到离自己距离最小即可,而不是同步运动 分析:对于一对点 i 和 j 来说,以点 i 为基准,要是xj<xi,那么只要vj>xi就可以让dis为0,要是xj>xi,,那么只要vj<vi就可以让dis为0,其他情况就俩者不动就能保持dis最小为ab…
Performance ReviewEmployee performance reviews are a necessary evil in any company. In a performance review, employees give written feedback about each other on the work done recently. This feedback is passed up to their managers which then decide pr…
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i,j) such that i>j and ai<aj. For example, a permutation [4,1,3,2] contains 4 i…
F. Gabriel's Pocket Money 2017- BUPT Collegiate Programming Contest - sync 时间限制 2000 ms 内存限制 65536 KB 题目描述 For centuries, Heaven has required its young angels to live and study among humans in order to become full-fledged angels. This is no different…
F. A Heap of Heaps time limit per test 3 seconds memory limit per test 512 megabytes input standard input output standard output Andrew skipped lessons on the subject 'Algorithms and Data Structures' for the entire term. When he came to the final tes…
