fork(3) download
  1. def f(a):return list(a[0])+f(zip(*a[1:])[::-1]) if a else []
  2.  
  3. print(f([]))
  4. print(f([[1]]))
  5. print(f([[1, 2],[3, 4]]))
  6. print(f([[1, 2],[3, 4],[5, 6]]))
  7. print(f([[1, 2, 3, 4],[12, 13, 14, 5],[11, 16, 15, 6],[10, 9, 8, 7]]))
  8. print(f([[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8],[1, 2, 3, 4, 12, 13, 14, 5, 7, 8]]))
Success #stdin #stdout 0.01s 118784KB
stdin
Standard input is empty
stdout
[]
[1]
[1, 2, 4, 3]
[1, 2, 4, 6, 5, 3]
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
[1, 2, 3, 4, 12, 13, 14, 5, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 14, 13, 12, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 12, 13, 14, 5, 7, 7, 7, 7, 7, 7, 7, 7, 5, 14, 13, 12, 4, 3, 2, 2, 2, 2, 2, 2, 2, 3, 4, 12, 13, 14, 5, 5, 5, 5, 5, 5, 14, 13, 12, 4, 3, 3, 3, 3, 3, 4, 12, 13, 14, 14, 14, 14, 13, 12, 4, 4, 4, 12, 13, 13, 12]