同样的代码 每次交的结果都不一样 #include<stdio.h> #include<string.h> #include<stdlib.h> #include<algorithm> #include<iostream> using namespace std; struct Node { int from; int to; int w; }Edges]; int father],ans; int find(int x) { int root…
选课时间(题目已修改,注意读题) Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2254 Accepted Submission(s): 1791 Problem Description 又到了选课的时间了,xhd看着选课表发呆,为了想让下一学期好过点,他想知道学n个学分共有多少组合.你来帮帮他吧.(xhd认为一样学分的课没区别)…
代码: #include<cstdio> #include<cstring> using namespace std; int main() { int t; scanf("%d",&t); while(t--) { int n,k; int a[9],b[9]; scanf("%d%d",&n,&k); for(int i=1; i<=k; i++) { scanf("%d%d",&…
题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=3371 Connect the Cities Description In 2100, since the sea level rise, most of the cities disappear. Though some survived cities are still connected with others, but most of them become disconnected. The…
题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=3371 Problem Description In 2100, since the sea level rise, most of the cities disappear. Though some survived cities are still connected with others, but most of them become disconnected. The governmen…