프로그래머스 - 행렬의 덧셈(JAVA)

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class Solution {
    public int[][] solution(int[][] arr1, int[][] arr2) {
        int row = arr1.length;
        int col = arr1[0].length;
        int[][] answer = new int[row][col];

        for(int i = 0; i < row; i++){
            for(int j = 0; j < col; j++){
                answer[i][j] = arr1[i][j] + arr2[i][j];
            }
        }

        return answer;
    }
}