NeetCode #917LC-1780MediumMath & Geometry
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#917 · #1780 · Check if Number is a Sum of Powers of Three(判断一个数字是否可以表示成三的幂的和)

📌 Problem Statement & Constraints

Given an integer n, return true if it can be written as the sum of distinct powers of three, otherwise false. Constraints: 1 <= n <= 10^7.
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