Solution: Perfect Squares
Explore how to determine the minimum count of perfect square numbers that sum to a given integer by applying the Four-Square and Three-Square theorems. Learn a step-by-step approach that avoids brute force, utilizing number theory for a fast and elegant solution, helping you master this common coding interview problem.
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We'll cover the following...
Statement
Given an integer, n, return the least number of perfect square numbers that sum to n.
A perfect square is an integer that is the square of an integer. In other words, it is an integer that is the result of multiplying a whole integer by itself. For example,
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