python练手_69-报数

# -*- coding:utf-8 -*-
# @Author: CH
"""
@project: python study
@time:2019/1/8-0:00
@file_name:【程序69】报数.py
@IDE:PyCharm 
@else: DO NOT STOP STUDYING!!!
"""
# 题目 有n个人围成一圈，顺序排号。从第一个人开始报数（从1到3报数），凡报到3的人退出圈子，问最后留下的是原来第几号的那位。
#
# 程序分析 无。
if __name__ == '__main__':
    nmax = 50
    n = int(input('请输入总人数:'))
    num = []
    for i in range(n):
        num.append(i + 1)

    i = 0
    k = 0
    m = 0

    while m < n - 1:
        if num[i] != 0: k += 1
        if k == 3:
            num[i] = 0
            k = 0
            m += 1
        i += 1
        if i == n: i = 0

    i = 0
    while num[i] == 0: i += 1
    print(num[i])