[알고리즘] 프로그래머스 실패율 / python

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

프로그래머스

 

 

def solution(N, stages):
    fail = {}
    clear = len(stages)
    for i in range(1, N+1):
        if clear != 0:
            count = stages.count(i)
            fail[i] = count / clear
            clear -= count
        else:
            fail[i] = 0

    return sorted(fail, key=lambda x : fail[x], reverse=True)