It appears that Alfonso took 7 minutes to solve this challenge.
very clever simplifications (constant term in linear model is irrelevant, and optimal slope can only take a discrete set of values)
Tobias took at least 2 minutes to solve this challenge with Matlab. An elegant usage of a function and a Matlab optimization function. This solution also crushed the GJam BigDataset in 1.2 seconds.
Replace NaNs with the number that appears to its left in the row.
The Tower of Hanoi
Combinations without using nchoosek
Solve Quadratic : No * - or key functions permitted
User defined nextpow function
GJam: 2013 Rd1a Bullseye Painting - Large Numbers
Script file size
Text File Read: 64 bit data set
Criss-Cross Verification: NHL
Minimum Sum thru a Lower Triangle
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