Dust_heart的博客

maximum shortest distance Time Limit: 2000/1000 MS(Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1879    Accepted Submission(s): 643 Problem Description There

CF Round #424（ Div.2） D. Office Keys 【二分】 There are n people and k keys on a straight line. Every person wants to get to theoffice which is located on the line as well. To do that, he needs to reach somepoint with a key, take the key and then go to the of

Codeforces 920G - List Of Integers 【容斥+二分】 Let's denote as L(x, p) an infinitesequence of integers y such that gcd(p, y) = 1 and y > x (where gcd is the greatestcommon divisor of two integer numbers), sorted in ascending order. The elementsof L(x, p) are 1

GT's DreamTime Limit: 2000/1000 MS(Java/Others)    Memory Limit: 256000/256000K (Java/Others)Problem Description在现实中认了无数师傅却毫无长进的GT在梦中成为了某武侠世界的神。在这个世界中初始有n个人，他们各成一派。作为世界神GT总共会进行m次操作，每次操作有如下两种情况1 x y表示x...