1 + 11 + 1111+ 11111+ ..... + 11111(2016个) 结果是几位数


# -*- coding: utf-8 -*-
"""
Created on Mon Mar 21 20:38:06 2016

@author: yanjie
"""
'''
1 + 11 + 1111+ 11111+ ..... + 11111(2016个)
结果是几位数
用什么数据结构
有几个6
写算法
'''
a = [];
m = 0;
six = 0;
for i in range(2016,0,-1):
    b = (i+m) % 10;
    m = (i+m) / 10;    
    a.append(b)
    if b==6:
        six = six + 1;
if m>0:
    a.append(m)
print len(a) #2016
print six #226
print 'hello'
'''
c = reversed(a)
for i in list(c):
    print i,;
'''


posted on 2016-03-21 21:26  长456风  阅读(369)  评论(0编辑  收藏  举报

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