find permutations by lexicographical order
See the wikipedia page on permutations here: http://en.wikipedia.org/wiki/Permutation
Particularly, reference the section on generating permutations by lexicographic order.
find permutations by lexicographical order
See the wikipedia page on permutations here: http://en.wikipedia.org/wiki/Permutation
Particularly, reference the section on generating permutations by lexicographic order.