[array] 행렬의 덧셈

링크

https://school.programmers.co.kr/learn/courses/30/lessons/12950

프로그래머스

 

문제

정답 1

# numpy 활용

import numpy as np

def solution(arr1, arr2):
	return (np.array(arr1) + np.array(arr2)).tolist()

정답 2

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