DoublyLinkedList.c

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

struct node  {
	int data;
	struct node *next;
	struct node *prev;
}*head=NULL;

struct node *yeniNodeOlustur(int gelen){
	struct node *yeniNode = (struct node*)malloc(sizeof(struct node));
	
	yeniNode->data = gelen;
	yeniNode->next = NULL;
	yeniNode->prev = NULL;
	
	return yeniNode;
}

void ekle (int gelen);
void bastanSonaYazdir ();
void sondanBasaYazdir ();


int main() {
	ekle(434);
	ekle(6);
	ekle(94);
	ekle(414);
	
	bastanSonaYazdir();
	sondanBasaYazdir();
}


void ekle (int gelen) {
	struct node *temp = head;
	struct node *yeniNode = yeniNodeOlustur(gelen);
	
	if (head == NULL) {
		head = yeniNode;
		return;
	}
	
	while (temp->next != NULL) {
		temp = temp->next;
	}
	
	temp->next = yeniNode;
	yeniNode->prev = temp;
}


void bastanSonaYazdir () {
	struct node *temp = head;
	
	printf("Bagli Liste (Duz): ");
	
	while (temp!= NULL) {
		printf("%d ",temp->data);
		temp = temp->next;
	}
	
	printf("\n\n");
}


void sondanBasaYazdir () {
	struct node* temp = head;
	
	if(temp == NULL) {
		return;
	}

	while(temp->next != NULL) {
		temp = temp->next;
	}

	printf("Bagli Liste (Tersten): ");
	
	while(temp != NULL) {
		printf("%d ",temp->data);
		temp = temp->prev;
	}
}