allahu akbar lsdx anax

#include <iostream>
#include <fstream>
using namespace std;

ifstream fin("matrice.in");

int n, s=0;

int main()
{

    fin>>n;

    int v[n][n];

    for(int i=1;i<=n;i++)
        for(int j=1;j<=n;j++)
            fin>>v[i][j];

    for(int i=1;i<=n;i++)
        for(int j=1;j<=n;j++)
                if(i>j)
                    s += v[i][j];

        cout<<s;


    return 0;
}