[LeetCode]633. Sum of Square Numbers

[LeetCode]633. Sum of Square Numbers

题目描述

思路

代码

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

class Solution {
public:
bool judgeSquareSum(int c) {
int high = sqrt(c), low = 0;
while (low <= high) {
int res = low * low + high * high;
if (res == c) return true;
else if (res < c) ++low;
else --high;
}
return false;
}
};

int main() {
int num;
Solution s;
while (cin >> num) {
cout << s.judgeSquareSum(num) << endl;
}
}