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Start:
Apr, 17, 2017 10:00:00
Python程序设计基础培训第二次作业
End:
Apr, 23, 2017 14:00:00
Time elapsed:
Time remaining:
Problem_ID:
B
Result:
Accepted
Time:
126ms
Memory:
21432kB
Author:
15606823587
In contest:
1086
复制代码
n=int(raw_input()) c=0 while n!=1: if n%2 ==0 : n=n/2 else: n=n*3+1 c=c+1 print c