Help me to fix a silly problem in stack

[Ltp]

I am almost done with the following code; need a single argument to find the desired output.

#include <iostream>
#include <ctime>
using namespace std;
class stack{
private:
	int *st;
	int s;
	int top;
public:
	stack(int);
	//void set_values();
	//void get_values();
	void push(int);
	void pop(int &);
};

stack::stack(int x)
{
	s=x;
	top=0;
	st=new int[s];
}

/*
void stack::set_values()
{
	for(int i=0; i<s; ++i)
		st[i]=rand()%10;
}
void stack::get_values()
{
	for(int i=0; i<s; ++i)
		cout<<st[i]<<endl;
}
*/

void stack::push(int x)
{
	if(top==s)
        cout<<"Stack full.\n";
	else{
		st[top]=x;
		cout<<st[top]<<" ";
		++top;
	}
}

void stack::pop(int &x)
{
	if(top==0)
        cout<<"Stack empty.\n";
	else{
		st[top]=x;
		cout<<st[top]<<" ";
		--top;
	}
}

int main()
{
	stack s1(10);
	srand (time(0));	
	//sc.set_values();
	//sc.get_values();
	
	cout<<"Pushed values are:\n";
	for(int i=0; i<10; ++i)
		s1.push(rand()%10);

	cout<<"\n\nPoped values are:\n";
	for(int j=0; j<10; ++j)
		s1.pop();
	
	cout<<endl;
	system ("Pause");
	return 0;
}

In the main()[line no.72], what should I put here as argument...

s1.pop(?);

...so that I can send the pushed values to the function...

void stack::pop(int &x)
{
	if(top==0)
        cout<<"Stack empty.\n";
	else{
		st[top]=x;
		cout<<st[top]<<" ";
		--top;
	}
}

...and the function will cout the poped values.

[Zin Byte]

Better, why use this function when you can create a new stack frame using assembly then use push\pop assembly instructions in order to add values to the stack.