Select every other element of a vector
Replace NaNs with the number that appears to its left in the row.
Increment a number, given its digits
Back to basics 23 - Triangular matrix
Pi Estimate 1
Get ranking of a combination
Project Euler: Problem 3, Largest prime factor
Getting the absolute index from a matrix
Poker Series 02: isQuads
Poker Series 05: isStraight
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