Most nonzero elements in row
Return the first and last character of a string
Sum the Digits of a Number
Fibonacci-Sum of Squares
length of a vector
Project Euler: Problem 9, Pythagorean numbers
Poker Series 01: isStraightFlush
Siblings of a graphics object
Project Euler: Problem 6, Natural numbers, squares and sums.
Project Euler: Problem 5, Smallest multiple
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