You've got a pretty good ELO, and are brave for publishing it. How often do you play?
radius of a spherical planet
Least common multiple of many numbers
String substitution, sub problem to cryptoMath
Wheat on a chessboard pt 1
Polite numbers. N-th polite number.
Getting the indices from a matrix
Recycled Numbers (CodeJam Qualification Round 2012)
Numbers spiral diagonals (Part 1)
How to reverse spdiags?
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