279. Perfect Squares
題目： Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n. For example, given ...
原文：LeetCode 279. Perfect Squares
Given a positive integern, find the least number of perfect square numbers for example, , , , , ... which sum ton. For example, givenn , return because givenn , return because . 題目分析 一個數可以由一些完全平方數相加得到 ...
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