lab.cpp

#include <iostream>

using namespace std;

int main() {
  int r1, c1, r2, c2, i, j, k;
  int A[5][5], B[5][5], C[5][5];
  cout << "Enter number of rows and columns of matrix A : ";
  cin >> r1 >> c1;
  cout << "Enter number of rows and columns of matrix B : ";
  cin >> r2 >> c2;
  if (c1 != r2) {
    cout << "Matrices cannot be multiplied!";
    exit(0);
  }
  cout << "Enter elements of matrix A : ";
  for (i = 0; i < r1; i++)
    for (j = 0; j < c1; j++)
      cin >> A[i][j];
  cout << "Enter elements of matrix B : ";
  for (i = 0; i < r2; i++)
    for (j = 0; j < c2; j++)
      cin >> B[i][j];
  for (i = 0; i < r1; i++) {
    for (j = 0; j < c2; j++) {
      C[i][j] = 0;
      for (k = 0; k < r2; k++) {
        C[i][j] += A[i][k] * B[k][j];
      }
    }
  }
  cout << "Product of matrices\n";
  for (i = 0; i < r1; i++) {
    for (j = 0; j < c2; j++)
      cout << C[i][j] << "  ";
    cout << "\n";
  }
  return 0;
}