#include <stdio.h>
#include <stdlib.h>
 
struct node {
	int v;
	struct node * next;
};
 
struct node * head=NULL;  // Cabeza apunta a nulo porque todav&#237;a no hay ning&#250;n elemento
 
void push (int n){ // Insertar elementos
 
	struct node *m;
	m=(struct node *) malloc (sizeof(struct node));
 
	m->next=head;
	m->v=n;
	head=m;
 
}
 
int pop (){ // Sacar elementos
	int m;
 
	struct node * rem;
 
	rem=head;
	m=rem->v;
	head=rem->next;
 
	return m;
}
 
int main (void){
 
	struct node * mostrar; // PARA MOSTRAR LA LISTA
 
	push (50);
	push (90);
 
	printf ("Elemento que he sacado: %d\n",pop());
 
	push (90);
 
	mostrar=head;
 
	while (mostrar != NULL){
		printf ("%d\n",mostrar->v);
		mostrar=mostrar->next;
	}
 
 
 
	return 0;
}