

#include 

using namespace std;

const int N = 10;

struct Mat
{
    int m [N][N];
};

void zero (Mat & z)
{
    for ( int i = 0; i < N; i++ )
        for (int j = 0; j < N; j++)
            z.m[i][j] = 0;
}

void one (Mat & z)
{
    for ( int i = 0; i < N; i++ )
        for (int j = 0; j < N; j++)
        {
            if (i == j)
               z.m[i][j] = 1;
            else
               z.m[i][j] = 0;
        }
}

void add (Mat &c, Mat a, Mat b)
{
    for ( int i = 0; i < N; i++ )
    {
        for (int j = 0; j < N; j++)
        {
            c.m [i][j] =  a.m [i][j] + b.m [i][j];
        }
    }
}

void mul (Mat &c, Mat a, Mat b)
{
    for ( int i = 0; i < N; i++ )
    {
        for (int j = 0; j < N; j++)
        {
            int v = 0;
            for (int k = 0; k < N; k++)
            {
                v = v + a.m [i][k] * b.m [k][j];
            }
            c.m [i][j] =  v;
        }
    }
}

void tisk (Mat a)
{
    cout << "[" << endl;
    for ( int i = 0; i < N; i++ ) // <-- N
    {
        cout << "  (";
        for (int j = 0; j < N; j++) // <-- N
        {
            cout << a.m[i][j];  // <-- zmena
            if (j < N-1)
                cout << ", ";
        }
        cout <<  ")" <<  endl;
    }
    cout << "]"<< endl;
}

int main()
{
    Mat t;
    zero (t);
    tisk (t);

    Mat u;
    one (u);
    tisk (u);

    Mat v;
    add (v , t, u);
    tisk (v);

    return 0;
}