#include <iostream>
#include <cmath>


struct pointInSpace {
	double xCoord;
	double yCoord;
};

struct rectangle {
	pointInSpace SW;
	pointInSpace NE;
};
struct circle {
	pointInSpace centre;
	double radius;
 };
double distance(pointInSpace a, pointInSpace b){
  return std::sqrt(std::pow(a.xCoord - b.xCoord, 2) + std::pow(a.yCoord - b.yCoord, 2));
}
double rectArea(rectangle caseInPoint){
	return (caseInPoint.NE.xCoord-caseInPoint.SW.xCoord) * (caseInPoint.NE.yCoord-caseInPoint.SW.yCoord);
}

int biggerRect(rectangle a, rectangle b){
	return (rectArea(a) > rectArea(b)) ? rectArea(a) : rectArea(b);
}



int main(int argc, char* argv[]){
	pointInSpace dot = {3.141592, 42.0};
	std::cout << dot.xCoord <<  std::endl << dot.yCoord << std::endl;

	rectangle square = {0.0,0.0,20.0,20.0};
	std::cout << square.SW.xCoord << std::endl << square.SW.yCoord <<  std::endl << square.NE.xCoord <<  std::endl << square.NE.yCoord << std::endl;

	circle wheel = {1.0,1.0,1.0};
	std::cout << wheel.centre.xCoord << std::endl << wheel.centre.yCoord << std::endl << wheel.radius << std::endl;

	std::cout << distance({1.0,1.0},{3.0,1.0}) << std::endl;

	std::cout << rectArea(square) << std::endl;

	rectangle rect1 = {13.0,10.0,15.0,15.0};
	std::cout << biggerRect(square,rect1) << std::endl;


	return 0;

}