Submission #111506

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Source Code Expand

#include<iostream>
#include<cmath>
struct Pos
{

  double x;
  double y;

};

using namespace std;

int main()
{

  Pos a,b,c;

  double A,B,C;

  double x,h;

  cin >> a.x >> a.y >> b.x >> b.y >> c.x >> c.y;

  A = sqrt( pow( b.x - a.x,2.0) + pow( b.y - a.y,2.0));
  B = sqrt( pow( c.x - b.x,2.0) + pow( c.y - b.y,2.0));
  C = sqrt( pow( a.x - c.x,2.0) + pow( a.y - c.y,2.0));

  x = (pow(C,2.0) + pow(A,2.0) - pow(B,2.0)) / (2*A);

  h = sqrt( pow(C,2.0) - pow(x,2.0));

  cout << (A*h)/2.0 << endl;

  return 0;

}

Submission Info

Judge Result