[Lv.2]행렬의 곱셈

package Lv_2;

public class 행렬의곱셈 {
    public static int[][] solution(int[][] arr1, int[][] arr2) {
        int[][] answer = new int[arr1.length][arr2[0].length];
        for (int i = 0; i < arr1.length; i++) {
            for (int j = 0; j < arr2[0].length; j++) {
                for (int k = 0; k < arr2.length; k++) {
                    answer[i][j] += arr1[i][k] * arr2[k][j];
                }
            }
        }
        return answer;
    }

    public static void main(String[] args) {
        int[][] arr1 = new int[][] {{1,4},{3,2},{4,1}};
        int[][] arr2 = new int[][]{{3, 3}, {3, 3}};

        int[][] result = solution(arr1, arr2);
        for (int i = 0; i < result.length; i++) {
            for (int j = 0; j < result[0].length; j++) {
                System.out.println(result[i][j]);
            }
        }
    }
}