include stdio include windows define include iostream using namespace

#include <stdio.h>
#include <windows.h>
#define N 4

#include <iostream>

using namespace std;

int main(){
    int matrix[N][N] = {{1,2,3,4},
                    {5,6,7,8},
                    {9,10,11,12},
                    {13,14,15,16}};

    int granica = N - 1;
    int summ=0;

    for(int i=0; i < 4; ++i){

        for(int j = 0; j < granica; ++j){
            summ+=matrix[i][j];
        }

        granica--;

    }

    cout << summ << endl;

    return 0;
}