编写题解 1047: [编程入门]报数问题

解题思路:

注意事项:

参考代码:

from itertools import cycle

def demo(lst,k = 3):

    t_lst = lst[:]

    while len(t_lst)>1:

        c = cycle(t_lst)

        for i in range(k):

            t = next(c)

        index = t_lst.index(t)

        t_lst = t_lst[index+1:]+t_lst[:index]

    return t_lst[0]

n = eval(input())

lst = list(range(1,n+1))

print(demo(lst,k=3))