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  1. def h(d, s, a, t):
  2.     if d == 1:
  3.         print('{} {}'.format(s, t))
  4.         return
  5.  
  6.     h(d - 1, s, t, a)
  7.     print('{} {}'.format(s, t))
  8.     h(d - 1, a, s, t)
  9.  
  10. n=int(input())
  11. print(2**n-1)
  12. h(n,'1','2','3')
Success #stdin #stdout 0.03s 9640KB
comments (?)
stdin 
3
stdout 
7
1 3
1 2
3 2
1 3
2 1
2 3
1 3
https://ideone.com/QbBDnS
Tower of Hanoi
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
secret

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