Write a function to find the 5th root of a number.
It sounds easy, but the typical functions are not allowed (see the test suite), so you'll need to find a non-standard method to solve the problem.
Getting logical indexes
Fibonacci-Sum of Squares
Is this triangle right-angled?
Sums of Multiple Pairs of Triangular Numbers
Parse me a Lisp
Power Times (of the day)
Tic Tac Toe Solver
Self-similarity 2 - Every third term
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