Leetcode 633 Sum of Square Numbers

Leetcode 633 Sum of Square Numbers

#include <math.h>class Solution {public:    bool judgeSquareSum(int c) {    for(int i = 0;i <= (int)sqrt(c);i++)    {        double tmp = c - i * i;        if(sqrt(tmp) == (int)sqrt(tmp))//only two numbers' square sum          return true;    }    return false;    }};