633-sum-of-square-numbers.md

633. Sum of Square Numbers - 平方数之和

给定一个非负整数 c ，你要判断是否存在两个整数 a 和 b，使得 a² + b² = c。

示例1:

输入: 5
输出: True
解释: 1 * 1 + 2 * 2 = 5

 

示例2:

输入: 3
输出: False

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题目标签：Math

题目链接：LeetCode / LeetCode中国

题解

Language	Runtime	Memory
python3	212 ms	N/A

class Solution:
    def judgeSquareSum(self, c):
        """
        :type c: int
        :rtype: bool
        """
        tmp = set()
        for i in range(int(c**0.5)+1):
            tmp.add(i*i)
        for ii in tmp:
            if c - ii in tmp:
                return True
        return False