[프로그래머스] Lv.1 [1차] 비밀지도 [Python, 파이썬] KAKAO

• 문제 : https://school.programmers.co.kr/learn/courses/30/lessons/17681
• bin, replace, zfill

def solution(n, arr1, arr2):
    answer = []

    for i in range(n):

        x = bin(arr1[i]|arr2[i])[2:].zfill(n)
        x = x.replace("1", "#")
        x = x.replace("0", " ")
        answer.append(x)
        
    return answer