Whats Wrong in My simple program?
Code:
#include <malloc.h>
#include <stdio.h>
struct list
{
int data;
struct list next;
};
typedef struct list node;
typedef node link;
main()
{
link ptr,head;
int num,i;
ptr=(link)malloc(sizeof(node));
ptr=head;
printf("please input 5 numbers==>\n");
for(i=0;i<=4;i++)
{
scanf("%d",&num);
ptr->data=num;
ptr-next=(link)malloc(sizeof(node));
if(i==4) ptr->next=NULL;
else ptr=ptr->next;
}
ptr=head;
while(ptr!=NULL)
{
printf("The value is ==>%d\n",ptr->data);
ptr=ptr->next;
}
}
what's wrong with it? help me, thanx..
change the first error,thanx,may be i should rewrite this program,i am newbit , sorry at all...
