Create CircularLinkedlist.cpp

CircularLinkedlist.cpp

@@ -0,0 +1,68 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+/* structure for a node */
+class Node
+{
+    public:
+    int data;
+    Node *next;
+};
+
+/* Function to insert a node at the beginning
+of a Circular linked list */
+void push(Node **head_ref, int data)
+{
+    Node *ptr1 = new Node();
+    Node *temp = *head_ref;
+    ptr1->data = data;
+    ptr1->next = *head_ref;
+
+    /* If linked list is not NULL then
+    set the next of last node */
+    if (*head_ref != NULL)
+    {
+        while (temp->next != *head_ref)
+            temp = temp->next;
+        temp->next = ptr1;
+    }
+    else
+        ptr1->next = ptr1; /*For the first node */
+
+    *head_ref = ptr1;
+}
+
+/* Function to print nodes in
+a given Circular linked list */
+void printList(Node *head)
+{
+    Node *temp = head;
+    if (head != NULL)
+    {
+        do
+        {
+            cout << temp->data << " ";
+            temp = temp->next;
+        }
+        while (temp != head);
+    }
+}
+
+/* Driver program to test above functions */
+int main()
+{
+    /* Initialize lists as empty */
+    Node *head = NULL;
+
+    /* Created linked list will be 11->2->56->12 */
+    push(&head, 12);
+    push(&head, 56);
+    push(&head, 2);
+    push(&head, 11);
+
+    cout << "Contents of Circular Linked List\n ";
+    printList(head);
+
+    return 0;
+}
+