4301786   2006-02-02 05:29:25  Accepted 0.023 Minimum 28565 C++ 10233 - Dermuba Triangle
{{{~cpp
#include <iostream>
#include <math.h>
using namespace std;

void process(int num1, int num2)
{
	cout.setf(ios::fixed, ios::floatfield);  
    cout.setf(ios::showpoint);  
    cout.precision(3);
	double num1_x, num1_y, num2_x, num2_y, height = sqrt(3)/2, temp;
	int i;

	for(i = 0; num1 - i > 0; i +=2)
	{
		num1 -= i;
		if(i == 0)
			i++;
	}
	i /= 2;
	if(i != 0)
		num1 -= i + 1;
	else
		num1 = 0;
	num1_x = num1 *0.5;
	temp = i;
	if(i !=0)
	{
		num1_y = height*(temp-1.0/3.0);
		if((i + num1)%2 == 0)
			num1_y += height/3;
	}
	else
		num1_y = 0;

	for(i = 0; num2 - i > 0; i +=2)
	{
		num2 -= i;
		if(i == 0)
			i++;
	}
	i /= 2;
	if(i != 0)
		num2 -= i + 1;
	else
		num2 = 0;
	num2_x = num2 *0.5;
	temp = i;
	if(i !=0)
	{	
		num2_y = height*(temp-1.0/3.0);
		if((i + num2)%2 == 0)
			num2_y += height/3;
	}
	else
		num2_y = 0;
	
	num1_x -= num2_x;
	num1_y -= num2_y;
	cout << sqrt(pow(num1_x,2) + pow(num1_y,2)) << endl;
}

int main()
{
//	cout << sqrt(pow(sqrt(3)*5/6,2) + 0.25);
	int num1, num2;
	while(cin >> num1 >> num2)
		process(num1,num2);

	return 0;
}
}}}