Very sneaky noticing this pattern in the answers.
Alphabetize by last name
Project Euler: Problem 9, Pythagorean numbers
Back to basics 21 - Matrix replicating
Convert a vector into a number
Find the 9's Complement
Rule of mixtures (composites) - other bound
Fill-a-pix - Solver (basic)
Scrabble Scores - 3
Mersenne Primes vs. All Primes
Lights Out 13 - 5x5, three stages, x moves
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