### 2.10.4 Transform a cycle into permutation : `cycle2perm`

`cycle2perm` takes on cycle as argument.

`cycle2perm` returns the permutation of size *n* corresponding
to the cycle given as argument, where *n* is choosen as small
as possible (see also `permu2cycles` and `cycles2permu`).

Input :

`cycle2perm([1,3,5])`

Output :

`[0,3,2,5,4,1]`