[1차] 비밀지도→ OR연산 + rjust(자릿수, 숫자)★★

나의 풀이 

def translator(num, n):
    result = []

    if num == 0:
        result.append(0)

    while num > 0:
        if num % n < 10:
            result.append(num % n)
        else:
            result.append(chr(num % n - 10 + ord('A')))
        num //= n
    return result[::-1]




answer=[]
def solution(n, arr1, arr2):
    for x,y in zip(arr1, arr2):
        num1 =(x | y)
        num2=translator(num1, 2)
        # print(num2)
        cha=n -len(num2) 
  		if cha>0:
            for i in range(cha):
                num2.insert(0,0)
        print()
        print(num2)
        str1 = ""
        for i in num2:
            if i == 1:
                str1+="#"
            elif i == 0:
                str1+=" "
        answer.append(str1)
    return answer

 

 

 

다른 사람의 풀이 

def solution(n, arr1, arr2):
    answer = []
    for i,j in zip(arr1,arr2):
        a12 = str(bin(i|j)[2:])
        a12=a12.rjust(n,'0')
        a12=a12.replace('1','#')
        a12=a12.replace('0',' ')
        answer.append(a12)
    return answer

▶ rjust() 메서드가 핵심임