Create f2

f2

@@ -0,0 +1,19 @@
+struct Node *addToEmpty(struct Node *last, int data) 
+{ 
+	// This function is only for empty list 
+	if (last != NULL) 
+	return last; 
+
+	// Creating a node dynamically. 
+	struct Node *last = 
+		(struct Node*)malloc(sizeof(struct Node)); 
+
+	// Assigning the data. 
+	last -> data = data; 
+
+	// Note : list was empty. We link single node 
+	// to itself. 
+	last -> next = last; 
+
+	return last; 
+}