문제
https://school.programmers.co.kr/learn/courses/30/lessons/131128
풀이 1 (오답)
def solution(X, Y):
num = ''
Y = list(Y)
for x in X:
if x in Y:
num += x
Y.remove(x)
num = ''.join(sorted(num, reverse=True))
if not num:
return '-1'
elif num[0] == '0' and num[-1] == '0':
return '0'
return num
- 가나
- 다라