Leetcode 633. Sum of Square Numbers

文章作者：Tyan
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1. Description

Sum of Square Numbers

2. Solution

class Solution {
public:
    bool judgeSquareSum(int c) {
        int root = int(sqrt(c)) + 1;
        for(int i = 0; i < root; i++) {
            int difference = c - i * i;
            int j = int(sqrt(difference));
            if(i * i + j * j == c) {
                return true;
            }
        }
        return false;
    }
};

Reference

1. https://leetcode.com/problems/sum-of-square-numbers/description/