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I think this is a simple mst problem I use prim algorithm but getting submission error ..... plz help me to find out the problem in my code

#include<iostream>
#include<vector>
#include<map>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<string>
#include<stack ...

Everytime I am getting submission error...... i dont understand why submission error.....plz help me to find out my problem with this code

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <string>
#include <cctype>
#include <stack>
#include <queue>
#include ...

i cant understand why i am getting RE ..... i cant find the bug of the code..... any help would be appreciated
#include<iostream>
#include<vector>
#include<map>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<string>
#include<stack>
#include<queue>
#include<algorithm ...

i cant understand why i am getting WA ..... i cant find the bug of the code any help would be appreciated
#include<iostream>
#include<vector>
#include<map>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<string>
#include<stack>
#include<queue>
#include<algorithm ...