Matchsticks to Square

Try to solve the Matchsticks to Square problem.

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.

Constraints:

  • 1≤1 \leq matchsticks.length ≤15\leq 15

  • 1≤1 \leq matchsticks[i] ≤103\leq 10^3

Examples

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