Chapter 10.5, Problem 10.4CP

What is the output of the following program?

#include <iostream>

using namespace std;

int main()

{

int X = 50, y = 60, Z = 70;

int *ptr = nullptr;

cout << x <<" " << y <<" " << z << endl;

ptr = &x;

*ptr *= 10;

ptr = &y;

*ptr *= 5;

ptr = &z;

*ptr *= 2;

cout << x <<" " << y <<" "<< z << endl;

return 0;

}