From 9e1f5ad4d9ce51fc17214a8e378688e21a88ae65 Mon Sep 17 00:00:00 2001
From: akash-ranjan8 <powerakash8@gmail.com>
Date: Fri, 11 Oct 2019 01:53:30 +0530
Subject: [PATCH] modified the Fundamentals

---
 .../Fundamental/circulardoublelink.c          | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Data Structures/Fundamental/circulardoublelink.c

diff --git a/Data Structures/Fundamental/circulardoublelink.c b/Data Structures/Fundamental/circulardoublelink.c
new file mode 100644
index 0000000..eee918f
--- /dev/null
+++ b/Data Structures/Fundamental/circulardoublelink.c	
@@ -0,0 +1,48 @@
+#include<stdio.h>
+#include<stdlib.h>
+struct node
+{ int data;
+  struct node *next;
+  struct node *prev;
+};
+struct node *head=NULL;
+void create(int d)
+{ struct node *new,*t;
+  new=(struct node*)malloc(sizeof(struct node));
+  new->data=d;
+  new->next=NULL;
+  new->prev=NULL;
+  if(head==NULL)
+  { head=new;
+    new->next=head;
+    head->prev=new;
+    new->prev=head;
+  }
+  else
+  { t=head;
+    do
+    { t=t->next;
+    }while(t!=head->next);
+    t->next=new;
+    new->prev=t;
+    t=new;
+    new->next=head;
+    head->prev=new;
+    
+  }
+}
+void display()
+{ struct node *ptr;
+  ptr=head;
+  do
+  { printf("%d",ptr->data);
+    ptr=ptr->next;
+  }while(ptr!=head);
+    
+}
+void main()
+{ create(1);
+  create(2);
+  create(5);
+  display();
+}