> 算出的结果正确 但总是WA
> #include<iostream>
> #include<cmath>
> using namespace std;
> 
> int main()
> {
> 	int times, find; 
> 	double answer, temp;
> 
> 	cin >> times;
> 
> 	for (int i = 0; i < times; i ++)
> 	{
> 		cin >> find;
> 
> 		answer = -0.5 + sqrt(0.0625 + find/2) * 2;
> 		 
> 		temp = int(answer);
> 		 
> 		if (answer - temp == 0)
> 			cout << temp << endl;
> 		else
> 			cout << find - (temp/2*temp + temp/2) << endl;
> 	}
> 
> 	return 0;
> }