0473. Matchsticks to Square
https://leetcode.com/problems/matchsticks-to-square
Description
You are given an integer array matchsticks
where matchsticks[i]
is the length of the ith
matchstick. You want to use all the matchsticks to make one square. You should not break any stick, but you can link them up, and each matchstick must be used exactly one time.
Return true
if you can make this square and false
otherwise.
Example 1:
Example 2:
Constraints:
1 <= matchsticks.length <= 15
1 <= matchsticks[i] <= 108
ac
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