Replicate each element of a row vector (with NaN) a constant number of times.
n=2, A=[1 2 3] -> [1 1 2 2 3 3]
n=0, A=[2 1] -> 
Summing Digits within Text
Rotate and display numbered tile
Close MATLAB with keyboard
Area of a circle
Find the path through the cell
Chess ELO rating system
Recycled Numbers (CodeJam Qualification Round 2012)
Mirror, mirror on the wall, who is fairest of them all?
Negation and new variables
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