Multiply Two Matrices

1#include <stdio.h>
2
3int main() {
4    int A[2][3] = {{1, 2, 3}, {4, 5, 6}};
5    int B[3][2] = {{7, 8}, {9, 10}, {11, 12}};
6    int C[2][2] = {0};  // Initialize to zero
7    
8    // Multiply: A(2x3) × B(3x2) = C(2x2)
9    for (int i = 0; i < 2; i++) {
10        for (int j = 0; j < 2; j++) {
11            for (int k = 0; k < 3; k++) {
12                C[i][j] += A[i][k] * B[k][j];
13            }
14        }
15    }
16    
17    printf("Matrix A (2x3):\n");
18    for (int i = 0; i < 2; i++) {
19        for (int j = 0; j < 3; j++)
20            printf("%3d ", A[i][j]);
21        printf("\n");
22    }
23    
24    printf("\nMatrix B (3x2):\n");
25    for (int i = 0; i < 3; i++) {
26        for (int j = 0; j < 2; j++)
27            printf("%3d ", B[i][j]);
28        printf("\n");
29    }
30    
31    printf("\nProduct A × B (2x2):\n");
32    for (int i = 0; i < 2; i++) {
33        for (int j = 0; j < 2; j++)
34            printf("%3d ", C[i][j]);
35        printf("\n");
36    }
37    
38    return 0;
39}