Write a C++ program to check three given integers (small, medium and large) and return true if the difference between small and medium and the difference between medium and large is same

#include <iostream>

using namespace std;

bool test(int x, int y, int z)
         {
            if (x > y && x > z && y > z) return x - y == y - z;
            if (x > y && x > z && z > y) return x - z == z - y;
            if (y > x && y > z && x > z) return y - x == x - z;
            if (y > x && y > z && z > x) return y - z == z - x;
            if (z > x && z > y && x > y) return z - x == x - y;
            return z - y == y - x;
         }
        
       
int main() 
 {
  cout << test(4, 5, 6) << endl;  
  cout << test(7, 12, 13) << endl;  
  cout << test(-1, 0, 1) << endl;  
  return 0;    
}