其实特简单

P1096 [NOIP2007 普及组] Hanoi 双塔问题

![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)![](tb2.bdstatic.com/tb/editor/images/face/i\_f25.png?t=20140803)
by clarkwang @ 2017-09-19 19:49:24

long double直接过
by Flokirie @ 2017-10-01 19:49:11

>高精度
by Altria_Pendragon_ @ 2017-10-14 22:16:25

高精度
by Frank06 @ 2017-10-21 21:15:42

`只有废话`
by dblark @ 2017-11-04 11:29:50

```python print(2**(input()+1)-2) ```
by dblark @ 2017-11-04 11:30:33

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