Determine if a Given Number is a Triangle Number
Sum all integers from 1 to 2^n
Back to basics 22 - Rotate a matrix
Output any real number that is neither positive nor negative
Vectors counting by 2
Create the following sequence : 0 1 1 4 9 25 64 169 ...
Reverse a matrix
Find the square of the sum of the digits of a number
Concatenate two strings
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