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Grokking the Coding Interview Patterns

Matchsticks to Square

Explore how to solve the Matchsticks to Square problem using backtracking methods. Understand the constraints of using all matchsticks once without breaking them to form a square, and practice implementing an optimal solution with efficient time and space complexity.

We'll cover the following...

Statement

Given an integer array, matchsticks, where matchsticks[i] is the length of the ithith matchstick. Use every single matchstick to create a square. No stick should be broken, although they can be connected, and each matchstick can only be used once.

Return TRUE if we can make this square; otherwise, return FALSE.

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