[파이썬🐍] 프로그래머스 : 행렬의 덧셈

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

<내 풀이>

def solution(arr1, arr2):
    answer = [[c + d for c, d in zip(a, b)] for a, b in zip(arr1,arr2)]
    return answer

<다른사람 풀이>