Project Euler: Problem 10, Sum of Primes
Find the sum of the elements in the "second" diagonal
Spot the rectangle
QWERTY Shift Encoder
Lights Out 3 - 5x5, 6 moves
Rule of mixtures (composites) - other bound
Rule of mixtures (composites) - weighted bound
Lights Out 7 - 5x5, x moves
Scrabble Scores - 8
Divisible by 10
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