문제

링크- https://programmers.co.kr/learn/courses/30/lessons/64065

코드

def solution(s):
    answer = []
    s = s.replace(",{", "").replace("{", "")
    lst = s.split("}")
    lst = list(filter(None, lst))
    lst = sorted(lst, key=len)

    for i in lst:
        for j in i.split(",") :
    
            if int(j) not in answer:
                answer.append(int(j))
     
    return answer