[Programmers] 행렬의 덧셈

Python

def solution(arr1, arr2):
    answer = []
    for i in range(len(arr1)):
        arr = []
        for j in range(len(arr1[0])):
            arr.append(arr1[i][j] + arr2[i][j])
        answer.append(arr)
        
    return answer