Extract leading non-zero digit
Sums with Excluded Digits
Is my wife right? Now with even more wrong husband
Project Euler: Problem 3, Largest prime factor
Determine if input is a perfect number
Project Euler: Problem 2, Sum of even Fibonacci
Poker Series 08: IsPair
Poker Series 11: selectBestHand
Make a simplified barcode
Make a random, non-repeating vector.
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