Maby this one needs some more test suites ;)
improve test suit
Maybe more test cases here? ;-)
give nth decimal place of pi
Flag largest magnitude swings as they occur
Say something funny
Find nth maximum
Convert a number to its Roman representation
Create the following sequence : 0 1 1 4 9 25 64 169 ...
Find the square of the sum of the digits of a number
Reverse a matrix
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