Thread: My code is not working why ?

My code is not working as it supposed to do. code compile with no errors but it doesn't give the output as expected

What's wrong with the code

Code:

#include<stdio.h>

#include<stdlib.h>


struct node    
{
   int x;
   struct node *next;   
};


int main ()   
{
   struct node *current = NULL; 
   struct node *last = NULL; 
   struct node *head = NULL;
	
   current = malloc(sizeof(*current)); 
   last = malloc(sizeof(*last)); 
  
   
   while ( current!= NULL)
   {
	   current->x = 10;
	   current->next = last;
	   
	   current->x = 30;
	   current->next = NULL;
   }
   
  head = current;
  
  while (head != NULL)
  {
	  printf("%d\n", head->x);
      head = head-> next;
  }
  return 0;
}