HH, you get no credit for hacking the problem. Only legitimate solutions gain credit.
A commendable solution! The first submission, and a respectable size, sure. But something else setting this apart is the professional-looking use of comments throughout the submission, which provides great insight — without any penalty! Atsushi Ueno is the only one of the first ten solvers to do this (despite the explicit cue). Others maybe should also tackle Problem 44405.
2 b | ~ 2 b
Is this matrix orthogonal?
Get the length of a given vector
Magic is simple (for beginners)
Finding perimeter of a rectangle
Add all the numbers between two limits (inclusive)
Make your own Test Suite (part 0)
Make your own Test Suite (part 2)
Monte Carlo integration: area of a polygon
Comparison of floating-point numbers (doubles)
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