graf conexe parcurgere latime

#include <iostream>
#include <fstream>

using namespace std;

int n,a[100][100];
int viz [1000],n,conexe;

int cuata()
{
    int i;
    for (i=1;i<=n;i++)
        if (viz[i]==0)
        return i;
    return =1;
}

int bf(int x)
{
    //parcurgerea in latime
}


void citire()
{
    //...
}

int nr_comp()
{
    int x;

    do
    {
        x=cauta();
        if (x!=-1)
        {
            conexe+1;
            bf(x);
        }
    }while (x!=-1);

    return conexe;
}

int main()
{
    citire();
    cout<<nr_comp();

    return 0;
}