[python] 프로그래머스 실패율 (Lv.1)

https://programmers.co.kr/learn/courses/30/lessons/42889

코딩테스트 연습 - 실패율

def solution(N, stages):
    per = {i+1:0 for i in range(N)} # 실패율
    
    num = len(stages)
    for i in range(1, N+1):
        cnt = stages.count(i)
        if cnt > 0:
            per[i] = cnt/num
            num -= cnt

    per = sorted(per.items(), key = lambda item:-item[1])
    print(per)
    answer = [i[0] for i in per]
    return answer