Lista simple

#include <stdio.h>
#include <stdlib.h>

struct nodo {
 int inf;
 struct nodo *sig;
};

main()
{
 int i = 0;
 int num;
 struct nodo *p,*q;
 printf ("favor digite numero");
 scanf("%d",& num);
 p=(struct nodo *) malloc (sizeof (struct nodo));
 p->inf=num;
 p->sig=NULL;
 
while (i<5){
 q=(struct nodo *)malloc (sizeof(struct nodo));
 printf("Si est an gentil digite el HP numero :");
 scanf("%d",&num);
 q->sig=p;
 p=q;
 i++;
} 
}