MultiOrSum

#include <iostream>
#include <vector>

using namespace std;

void outpt (vector<vector<int>> arr)
{
    for (int i = 0; i < arr.size(); i++)
    {
        for (int j = 0; j < arr[0].size(); j++)
            cout << arr[i][j] << ' ';
        cout << endl;
    }
}

int SumArr (vector<vector<int>> arr, vector<vector<int>> brr)
{
    vector<vector<int>> cr (arr.size(), vector<int>(arr[0].size()));
    if (arr.size() != brr.size() || arr[0].size() != brr[0].size())
    {
        cout << "SumArr feil!" << endl;
        return 0;
    }
    for (int i = 0; i < arr.size(); i++)
        for (int j = 0; j < arr[0].size(); j++)
            cr[i][j] = arr[i][j] + brr[i][j];
    cout << endl << "SumArr:" << endl;
    outpt (cr);
    return 0;
}

int MultiArr (vector<vector<int>> arr, vector<vector<int>> brr)
{
    vector<vector<int>> cr (arr.size(), vector<int>(brr[0].size()));
    if (arr[0].size() != brr.size())
    {
        cout << "MultiArr feil!" << endl;
        return 0;
    }
    for (int i = 0; i < brr[0].size(); i++)
    {
        for (int j = 0; j < arr.size(); j++)
        {
            int k = 0;
            for (int q = 0; q < arr.size(); q++)
                {
                    cout << arr[i][q]*brr[q][j] << "+";
                    k += arr[i][q]*brr[q][j];
                }
            cout << "   ";
            cr[i][j] = k;
        }
        cout << endl;
    }
    cout << endl << "MultiArr:" << endl;
    outpt (cr);
    return 0;
}

int main ()
{
    int m, n;
    cout << "Введите кол-во строк в матрице >> ";
    cin >> m;
    cout << "Введите кол-во столбцов в матрице >> ";
    cin >> n;
    vector<vector<int>> ar (m, vector<int>(n));
    int s;
    for (int i = 0; i < ar.size(); i++)
        for (int j = 0; j < ar[0].size(); j++)
        {
            cin >> s;
            ar[i][j] = s;
        }
    cout << endl;
    outpt (ar);

    cout << "Введите кол-во строк в матрице >> ";
    cin >> m;
    cout << "Введите кол-во столбцов в матрице >> ";
    cin >> n;
    vector<vector<int>> br (m, vector<int>(n));
    for (int i = 0; i < br.size(); i++)
        for (int j = 0; j < br[0].size(); j++)
        {
            cin >> s;
            br[i][j] = s;
        }
    cout << endl;
    outpt (br);

    bool l;
    cout << endl << "S?" << endl;
    cin >> l;
    if (l)
        SumArr(ar, br);

    cout << endl << "M?" << endl;
    cin >> l;
    if (l)
        MultiArr(ar, br);

    return 0;

}