Question

Determinat produsul elementelor negative dintr o matrice
Determinati suma elementelor divizibile cu x citit de la tastatura tot cu matrice..

Answer 1

#include <iostream>

using namespace std;

int main()
{
    int a[100][100], m, n, p=1, S=0;
    cin >> m >> n;
    for (int i=0; i<n; i++)
        for (int j=0; j<m; j++)
            cin >> a[i][j];

    // Produs
    for (int i=0; i<n; i++)
        for (int j=0; j<m; j++)
            if(a[i][j] < 0)
                p *= a[i][j];
    cout << p << "\n";

    // Suma
    int x; cin >> x;
    for (int i=0; i<n; i++)
        for (int j=0; j<m; j++)
            if (a[i][j] % x == 0)
                S += a[i][j];
    cout << S;
    return 0;
}