The test suite has been enhanced.
The creator of this problem might have indeed banged his head, which has affected his ability to think properly. I wish such stupid and meaningless problems stop showing up on Cody.
I admit that the time I'll spend on correcting the text of sufferers of Bangolangosis is small, but what I learned about regexprep from solving this problem will surely help me in other applications.
7 segment LED display
Compute a dot product of two vectors x and y
Symmetry of vector
Find vampire numbers
Basic electricity in a dry situation
Angle of triangle
Calories in a slice of pizza?
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