#include <iostream>
#include <cmath>

using namespace std;

  float distance(int aX, int aY, int bX, int bY)
{
  int a= aY - bY;
  int b= aX - bY;

  int cKvadrat = a*a + b*b;

  int c = sqrt(cKvadrat); //square root

  return c;
  //return sqrt(pow(aY - bY,2)+ pow(aX - bY,2))
}

int main() 
{
  cout << distance(5,6,2,2);
 return 0;
}

#include <iostream>
#include <cmath>

using namespace std;
float distance(int aX, int aY, int bX, int bY)
{
  int a= aY - bY;
  int b= aX - bY;

  int cKvadrat = a*a + b*b;

  int c = sqrt(cKvadrat); //square root

  return c;
  //return sqrt(pow(aY - bY,2)+ pow(aX - bY,2))
}
bool pointIsInCircle(int cX, int cY, int cRadius, int pX, int pY)
{
  return distance(cX, cY, pX, pY) < cRadius;
}

int main() 
{
  cout << pointIsInCircle(3,3,2,5,5) << endl;
 return 0;
}