Code (Adjacency Mat.)

#include <iostream>

using namespace std;

int main()
{
    //Code (Adjacency Mat.)
    int V,E;
    cout << "Vertex :";
    cin >> V  ;
    cout <<endl<<"Edge :";
    cin >> E;   //
    int weight[V][V];
    for(unsigned int e=0;e<E;e++)
    {
        int i,k,w;
        cout << "i :";//Vertex  at i
        cin >> i;

        cout << "k :"; // Vertex    at k
        cin >> k;

        cout << "w :";// weight
        cin >> w;

        weight[i][k]=w;

     }
     /* testcase
    5 10
    0 0 2
    0 1 3
    0 2 1
    1 3 3
    2 0 3
    2 1 2
    2 4 2
    3 2 1
    3 4 1
    4 1 1
    */
}