Define Tower of Hanoi. Explain Problem statement for Tower of Hanoi ? 

==> Tower of Hanoi---

• Tower of Hanoi, is a mathematical puzzle which consists of three tower (pegs) and more than one rings;
• These rings are of different sizes and stacked upon in ascending order i.e. the smaller one sits over the larger one. There are other variations of puzzle where the number of disks increase, but the tower count remains the same.