摘要:
2021-08-03 15:49:06 链接: https://www.luogu.com.cn/problem/P2872 题目描述: Farmer John had just acquired several new farms! He wants to connect the farms wi 阅读全文
摘要:
2021-08-02 08:34:33 链接 https://codeforces.com/contest/1549/problem/A 题目内容 A. Gregor and Cryptography time limit per test1 second memory limit per test 阅读全文
摘要:
2021-08-01 22:17:41 链接: https://www.luogu.com.cn/problem/P1339 题目描述 有一个 n 个点 m 条边的无向图,请求出从 s 到 t 的最短路长度。 输入格式 第一行四个正整数 n,m,s,t。 接下来 m 行,每行三个正整数 u,v,w, 阅读全文