Who said anything about witholding them?
Give a man a fish and all that, instead of doing a quick brain dump of the solved problem one can also explain the reasoning behind one's solution.

Here you could have explained why you can never remember between permutations, combinations, then maybe give a bit of math background regarding the number of permutations/combinations for n numbers and then explain how you came up with that answer

In reply to Re^3: Perl program to generate a descending order of 9-unique digit numbers by QuillMeantTen
in thread Perl program to generate a descending order of 9-unique digit numbers by amar712

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