Function permutator::get_permutation_size
source · Expand description
Calculate all possible number of permutation. It’s equals to size!/(size - 1).
Parameters
size
a size of data set to generate a permutation.degree
number of data set repetition.
Examples
use permutator::get_permutation_size;
get_permutation_size(3, 2); // return = 6
get_permutation_size(4, 2); // return = 12