08/06/17 11:33:22
>>148
def collatz(n):
yield n
n = n % 2 and 3*n + 1 or n/2
>>> collatz(13).next()
13
>>> f = collatz(13)
>>> f.next()
13
>>> f.next()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
StopIteration
>>> [x for x in collatz(13)]
[13]
>>149
開始位置ってなんじゃらほい
サンプルとかヒントきぼん