题目链接:https://ac.nowcoder.com/acm/contest/903/B 题意: 给你 q,n,p,求 q1+q2+...+qn 的和 模 p. 思路:一开始不会做,后面查了下发现有个等比数列求和的快速幂公式,附上链接https://www.cnblogs.com/yuiffy/p/3809176.html AC代码: #include<cstdio> #include<iostream> using namespace std; long long mod;…
题目描述:There are n cities in Byteland, and the ith city has a value ai. The cost of building a bidirectional road between two cities is the sum of their values. Please calculate the minimum cost of connecting these cities, which means any two cities c…
题目:http://acm.hdu.edu.cn/showproblem.php?pid=6705 path Time Limit: 2000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1250 Accepted Submission(s): 257 Problem Description You have a directed weighted graph…
题目:http://acm.hdu.edu.cn/showproblem.php?pid=6709 Fishing Master Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 631 Accepted Submission(s): 170 Problem Description Heard that eom is a fishin…
点击打开链接 2226: Contest Print Server Time Limit: 1 Sec Memory Limit: 128 MB Submit: 53 Solved: 18 [Submit][Status][Web Board] Description In ACM/ICPC on-site contests ,3 students share 1 computer,so you can print your source code any time. Here you ne…