ufff…checked all the test cases but getting wrong ans plzz…guys help me out
#include<cstdio>
#include<iostream>
#include<list>
using namespace std;
int dfs(int a);int mini=10000;int p=0;
list<int> M[1000002];
int visited[100005]={0};
int cost[100005]={0};
int main()
{
int a,b,c,t,n,m,i,j,k,l;
scanf("%d %d",&n,&m);
for(i=1;i<=m;i++)
{
scanf("%d %d",&a,&b);
M[a].push_back(b);
M[b].push_back(a);
}int ans[n];int s=1;
for(i=1;i<=n;i++)
{scanf("%d",&cost[i]);} k=1;
for(i=1;i<=n;i++)
{
if(visited[i]==0)
{
dfs(i);
if(p==0)
{s=0;goto d;}
ans[k]=mini;mini=10000;p=0;s=1;k++;
}
}d:mini=10000;int answ=0;int y=0;
for(i=1;i<k;i++)
{
if(mini>ans[i])
{mini=ans[i];y=i;}
}
for(i=1;i<k;i++)
{if((i!=y)&&(k>2)){answ=answ+ans[i]+mini;}
else if(k<3)
{answ=0;}
}
if(s==1)
printf("%d\n",answ);
else if(s==0)
printf("%d\n",-1);
return 0;
}
int dfs(int a)
{
visited[a]=1;
if(cost[a]>=0)
p=1;
if((mini>cost[a])&&(cost[a]>=0))
mini=cost[a];
list<int>::iterator it;
for(it=M[a].begin();it!=M[a].end();++it)
{if(visited[*it]==0)dfs(*it);}
}
