알고리즘
1. 행렬의 덧셈
풀이:
def solution(arr1, arr2):
answer = []
for i in range(len(arr1)):
arr_sum = []
for j in range(len(arr1[0])):
arr_sum.append(arr1[i][j] + arr2[i][j])
answer.append(arr_sum)
return answer