typedef struct node *NodePtr;

struct node
{
	int num;
	NodePtr next;
};
.
.
.
.
void delete_duplicated_nodes(NodePtr p)
{	
	NodePtr temp_root	= p;
	NodePtr temp_pre	= p;
	NodePtr temp_move	= p->next;


	while(temp_root != NULL){


		while(temp_move != NULL){
			if(temp_move->num == temp_root->num){
				temp_move = temp_move->next;		
				free(temp_pre->next);				
				temp_pre->next = temp_move;			
			}else{
				temp_pre = temp_pre->next;			
				temp_move = temp_move->next;
			}
		}


		temp_root	= temp_root->next;				
		temp_pre	= temp_root->next;				
		temp_move	= temp_root->next->next;		
	}

}