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.
Back to basics 1 - Saving
Energy of a photon
Return the first and last character of a string
Find the biggest empty box
Pernicious Anniversary Problem
Word Distance - Sum
Radiation Heat Transfer — View Factors (4)
Lights Out 5 - 5x5, 10 moves
Rule of mixtures (composites) - lower and upper bounds
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