感觉题目都已经快把正解给说出来了...strongly connected的两个点的消耗为0,其实就是同一个边双连通分量里面的点消耗为0.然后缩一下点,再树形DP一下就完了.第一次写边双,但感觉挺简单的. #include <bits/stdc++.h> #define ll long long using namespace std; ; int c[N]; ]; struct E { int v, ne; ll c; } e[N * ], tree[N * ]; int head[N],…
H. Capital City[ Color: Black ]Bahosain has become the president of Byteland, he is doing his best to make people's liveseasier. Now, he is working on improving road networks between the cities.If two cities are strongly connected, people can use BFS…
H. Capital City Time Limit: 3000ms Memory Limit: 262144KB This problem will be judged on CodeForcesGym. Original ID: 100676H64-bit integer IO format: %I64d Java class name: (Any) Bahosain has become the president of Byteland, he is doing his b…
H. Qin Shi Huang's National Road System Time Limit: 1000ms Memory Limit: 32768KB 64-bit integer IO format: %I64d Java class name: Main During the Warring States Period of ancient China(476 BC to 221 BC), there were seven kingdoms in China ----…
Problem Statement There is a country with n cities, numbered 0 through n-1. City 0 is the capital. The road network in the country forms an undirected connected graph. In other words: Some pairs of cities are connected by bidirectional roads. Fo…
Qin Shi Huang's National Road System Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6137 Accepted Submission(s): 2143 Problem Description During the Warring States Period of ancient China(47…
Mishka and trip time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Little Mishka is a great traveller and she visited many countries. After thinking about where to travel this time, she chose…
