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Replace NaNs with the number that appears to its left in the row.
Inner product of two vectors
Factorize THIS, buddy
Convert a vector into a number
Detect a number and replace with two NaN's
Toads and Frogs Puzzle 2
007: Chinese Barrack Invasion
Penny Distribution Machine
Expand 10^n to Powers of 4
The Generalized-N Eggs Problem
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