If your purpose is to compare the efficiency, I recommend you to use tic/toc or timeit instead of clock/etime. The clock function measures the operating system time which is less reliable as compared to tic/toc measurements.
Who Has the Most Change?
Project Euler: Problem 16, Sums of Digits of Powers of Two
Is A the inverse of B?
Matrix indexing with two vectors of indices
Change a specific color in an image
Unique - Very Very Large Numbers
GJam 2014 China Rd A: Read Phone Number (Large)
Solve Rubik's Cube - Up to Two Face Moves
Spherical radius given four points
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