fireescape WA

hey...guys...plzzzzzzzzzzzzzzzzzzzzz..........wht the hell i m gettng wrng ans..........

#include<cstdio>
#include<iostream>
#include<list>
#define M 10000007
using namespace std;

list<int> frnd[100006];
int y=0;
int visited[100006]={0};long long int captain=1;
//int dfs(int a);

int dfs(int a)
{

    visited[a]=1;
    y++;

    list<int>::iterator it;
    for(it=frnd[a].begin();it!=frnd[a].end();++it)
    {
        if(visited[*it]==0)
        dfs(*it);
    }
}

int main()
{
    int t,a,b,c,i,j,k,l,n,m;
    scanf("%d",&t);
    while(t--)
    {
        int routes=0;
        scanf("%d %d",&n,&m);

        for(i=1;i<=m;i++)
        {
          scanf("%d  %d",&a,&b);
           frnd[b].push_back(a);
          frnd[a].push_back(b);
        }

        for(i=1;i<=n;i++)
        visited[i]=0;

        y=0,captain=1;

        for(i=1;i<=n;i++)
        {if(visited[i]==0)
        {routes++;
         dfs(i);
         captain=captain*y;
         y=0;}
        }

        captain=captain%M;

        printf("%d %d\n",routes,captain);
        for(i=1;i<=n;i++)
        {frnd[i].clear();
        visited[i]=0;}
        routes=0;
        captain=1;
    }
    return 0;
}