Additional test cases have been added.
Why isn't "Are you okay?" accepted?
Tell me the slope
Back to basics 19 - character types
What is the distance from point P(x,y) to the line Ax + By + C = 0?
MATCH THE STRINGS (2 CHAR) very easy
Find nth maximum
Compress strings (not springs)
Inner product of two vectors
How to add?
Predicting life and death of a memory-less light bulb
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