ShinJJang · January 3, 2020 14:36
diff --git a/전화번호 목록.py b/전화번호 목록.py
 def solution(phone_book):
    phone_book = sorted(phone_book)
    for idx in range(len(phone_book)-1):
        a = phone_book[idx]
        b = phone_book[idx+1]
        if len(a) <= len(b) and a == b[:len(a)]:
            return False
            
    return True
	def solution(phone_book):
	phone_book = sorted(phone_book)
	for idx in range(len(phone_book)-1):
	a = phone_book[idx]
	b = phone_book[idx+1]
	if len(a) <= len(b) and a == b[:len(a)]:
	return False

	return True