[프로그래머스/java] 행렬의 덧셈

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

코딩테스트 연습 - 행렬의 덧셈

 

 

• arr1.length
• arr1[0].length

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