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Re:求教高手，此题只能分组做么？有数学方法么？

Posted by fantasyorg at 2007-07-14 11:08:38 on Problem 1019
In Reply To:求教高手，此题只能分组做么？有数学方法么？ Posted by:Nowitzki at 2007-02-23 18:50:21 
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;
}
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