return (num2 == 0) ? num1 : func1(num2, num1 % num2);
| LIST I | LIST II |
|---|---|
| (A) Circular Linked List | (I) Recursive Function Calls |
| (B) Doubly Linked List | (II) Round Robin Queue in CPU |
| (C) Stack | (III) Hash Tables |
| (D) Singly Linked List | (IV) Undo and Redo Functionality |