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.
Determine if input is a perfect number
Image Processing 2.1.1 Planck Integral
Packing Santa's Sleigh: First Layer
GJam 2015 Rd1B: Counter Culture
ICFP2021 Hole-In-Wall: Solve Score=0, where number of Figure Vertices = Hole Vertices + 1
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