矩阵相乘

请编程实现矩阵乘法。

#include <iostream>
using namespace std;
#define M1 3
#define M2 3
#define N 2

//O(N^3)
void mulMatix(int matrix1[][N], int matrix2[][M2], int matrix3[][M2]) {
	for (int i = 0; i < M1; ++i) {
		for (int j = 0; j < M2; ++j) {
			matrix3[i][j] = 0;
			for (int k = 0; k < N; ++k) {
				matrix3[i][j] += matrix1[i][k] * matrix2[k][j];
			}
		}
	}
}

void printMatrix(int matrix[][M2], int rows, int cols) {
	for (int i = 0; i < rows; ++i) {
		for (int j = 0; j < cols; ++j) {
			cout << matrix[i][j] << " ";
		}
		cout << endl;
	}
}