Time limit : 2sec / Memory limit : 256MB Score : 700 points Problem Statement Squid loves painting vertices in graphs. There is a simple undirected graph consisting of N vertices numbered 1 through N, and M edges. Initially, all the vertices are pain…
题意: 给一个包含N个顶点,M条边,无自环和重边的简单无向图,初始每个点颜色都为0,每条边的长度为1,连接着ai,bi两个节点.经过若干个操作, 每次将与某个点vi距离不超过di的所有点染成某种颜色ci,求最终每个点的颜色. 1 <= N, M, Q <= 1e5, 1 <= ai, bi, vi <= N, ai != bi. 0 <= di <= 10, 1 <= ci <= 1e5. 分析: 考虑对操作逆向,f[k][d]表示以k点为中心,dist=d…
AtCoder Grand Contest 012 A - AtCoder Group Contest 翻译 有\(3n\)个人,每一个人有一个强大值(看我的假翻译),每三个人可以分成一组,一组的强大值定义为三个人中第二强的人的强大值.求\(n\)组最大的强大值之和. 题解 这...不是倒着选两个人,正着选一个人构成一组就好了嘛.. #include<iostream> #include<cstdio> #include<algorithm> using namespa…
B - Splatter Painting Time limit : 2sec / Memory limit : 256MB Score : 700 points Problem Statement Squid loves painting vertices in graphs. There is a simple undirected graph consisting of N vertices numbered 1 through N, and M edges. Initially, all…
A - AtCoder Group Contest Time limit : 2sec / Memory limit : 256MB Score : 300 points Problem Statement There are 3N participants in AtCoder Group Contest. The strength of the i-th participant is represented by an integer ai. They will form N teams,…
Time limit : 2sec / Memory limit : 256MB Score : 300 points Problem Statement There are 3N participants in AtCoder Group Contest. The strength of the i-th participant is represented by an integer ai. They will form N teams, each consisting of three p…
