#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <bits/stdc++.h>
//#include <conio.h>
 
using namespace std;
 
 
/*http://w...content-available-to-author-only...t.com/c++-faq/floating-point-arith.html*/
inline bool isEqual(double x, double y)
{
  const double epsilon = 1e-9 /* some small number such as 1e-5 */;
  return std::fabs(x - y) <= epsilon;// * std::abs(x);
  // see Knuth section 4.2.2 pages 217-218
}
 
 
int main()
{
    double x1,y1,slobodni1,x2,y2,slobodni2;
    float m, n;
 
    cout<<isEqual(0,10);
    cout<<isEqual(10,10);
    cout<<isEqual(10,0);
    cout<<isEqual(0,0);
 
}

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