add new linked list

Add new Linked list

@@ -0,0 +1,63 @@
+#include <stdio.h>  
+#include <stdlib.h>  
+//Represent a node of singly linked list  
+struct node{  
+    int data;  
+    struct node *next;  
+};      
+
+//Represent the head and tail of the singly linked list  
+struct node *head, *tail = NULL;  
+
+//addNode() will add a new node to the list  
+void addNode(int data) {  
+    //Create a new node  
+    struct node *newNode = (struct node*)malloc(sizeof(struct node));  
+    newNode->data = data;  
+    newNode->next = NULL;  
+
+    //Checks if the list is empty  
+    if(head == NULL) {  
+        //If list is empty, both head and tail will point to new node  
+        head = newNode;  
+        tail = newNode;  
+    }  
+    else {  
+        //newNode will be added after tail such that tail's next will point to newNode  
+        tail->next = newNode;  
+        //newNode will become new tail of the list  
+        tail = newNode;  
+    }  
+}  
+
+//display() will display all the nodes present in the list  
+void display() {  
+    //Node current will point to head  
+    struct node *current = head;  
+
+    if(head == NULL) {  
+        printf("List is empty\n");  
+        return;  
+    }  
+    printf("Nodes of singly linked list: \n");  
+    while(current != NULL) {  
+        //Prints each node by incrementing pointer  
+        printf("%d ", current->data);  
+        current = current->next;  
+    }  
+    printf("\n");  
+}  
+
+int main()  
+{  
+    //Add nodes to the list  
+    addNode(1);  
+    addNode(2);  
+    addNode(3);  
+    addNode(4);  
+
+    //Displays the nodes present in the list  
+    display();  
+
+    return 0;  
+}