230822 행렬의 덧셈

public int[][] solution(int[][] arr1, int[][] arr2) {
	int rows = arr1.length;
	int cols = arr1[0].length;
	int[][] result = new int[rows][cols];

	for (int i = 0; i < rows; i++) {
		for (int j = 0; j < cols; j++) {
			result[i][j] = arr1[i][j] + arr2[i][j];
		}
	}

	return result;
}

출처:https://school.programmers.co.kr/learn/courses/30/lessons/12950