# Dermuba Triangle/김상섭

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;
}
```