[Python/파이썬] 프로그래머스 행렬의 곱셈

프로그래머스

코드

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