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Solution: Powerful Integers

Explore how to find all powerful integers less than or equal to a given bound by combining exponential powers of two numbers. Understand how to use hash sets to manage duplicates and handle edge cases when bases equal one. This lesson helps you implement an efficient solution leveraging hash maps and logarithmic complexity.

Statement

Given three integers x, y, and bound, return a list of all powerful integers whose value is less than or equal to bound.

An integer is considered powerful if it can be expressed as xi^i + yj^j for some non negative integers ii and jj (i.e., i0i \geq 0 and j0j ...