CPP_Practice_Programs/Matrix_Multiplication.cpp at master · Om-Doiphode/CPP_Practice_Programs · GitHub

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#include <iostream>
using namespace std;
int main()
{
    int n1, n2, n3;
    cin >> n1 >> n2 >> n3;
    int a[n1][n2], b[n2][n3];
    for (int i = 0; i < n1; i++)
    {
        for (int j = 0; j < n2; j++)
        {
            cin >> a[i][j];
        }
    }
    for (int i = 0; i < n2; i++)
    {
        for (int j = 0; j < n3; j++)
        {
            cin >> b[i][j];
        }
    }
    int ans[n1][n3];
    for (int i = 0; i < n1; i++)
    {
        for (int j = 0; j < n3; j++)
        {
            ans[i][j] = 0;
        }
    }
    for (int i = 0; i < n1; i++)
    {
        for (int j = 0; j < n3; j++)
        {
            for (int k = 0; k < n2; k++)
            {
                ans[i][j] += a[i][k] * b[k][j];
            }
        }
    }
    cout << "Answer : " << endl;
    for (int i = 0; i < n1; i++)
    {
        for (int j = 0; j < n3; j++)
        {
            cout << ans[i][j] << " ";
        }
        cout << endl;
    }

    return 0;
}