作者:恒如初见_193 | 来源:互联网 | 2023-01-09 14:09
pythonchallenge-10地址:http:www.pythonchallenge.compcreturnbull.html图片如下:题目解析:页面显示内容为len(a[3
pythonchallenge-10地址 : http://www.pythonchallenge.com/pc/return/bull.html
图片如下:
题目解析:页面显示内容为 len(a[30]) = ?
源代码中有个链接sequence.txt,打开后出现一个未完成的数组 a = [1, 11, 21, 1211, 111221,
题目的意思就是获取这个a[30]的长度。
通过度娘,得出数组的规律是这样的:
a[0]=1,读的就是1个1,于是得a[1] = 11;
a[1]读的为2个1,于是得a[2] = 12;
a[3] = 1211,读为,1个1,1个2,2个1,于是得出a[4] = 11 12 21
解题过程:
num = str(1)
times = 30
def readnum(num,times):
if times > 0:
zz = num[0]
j = 0
list = []
for i in str(num):
if zz == i:
j = j + 1
else:
list.append(zz)
list.append(str(j))
j = 1
zz = i
list.append(zz)
list.append(str(j))
num = "".join(list)
if times == 1:
print(len(num))
times = times - 1
readnum(num,times)
else:
print("The end")
答案: