sample.c

#include <stdio.h>
#include <stdlib.h>

#define N 4

void matrixMultiply(int A[N][N], int B[N][N], int C[N][N]) {
    int i, j, k;
    for (i = 0; i < N; i++) {
        for (j = 0; j < N; j++) {
            C[i][j] = 0;
            for (k = 0; k < N; k++) {
                C[i][j] += A[i][k] * B[k][j];
            }
        }
    }
}

void printMatrix(int matrix[N][N]) {
    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }
}

int main() {
    int A[N][N] = {
        {1, 2, 3, 4},
        {5, 6, 7, 8},
        {9, 10, 11, 12},
        {13, 14, 15, 16}
    };

    int B[N][N] = {
        {17, 18, 19, 20},
        {21, 22, 23, 24},
        {25, 26, 27, 28},
        {29, 30, 31, 32}
    };

    int C[N][N]; // Result matrix

    matrixMultiply(A, B, C);

    printf("Resultant matrix:\n");
    printMatrix(C);

    return 0;
}