Towers Of Hanoi

The Tower of Hanoi is a mathematical game or puzzle. It consists of three rods, and a number of disks of different sizes which can slide onto any rod.

The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules:

  1. Only one disk is allowed to move at a time..
  2. Bigger disk cannot be placed on the top of smaller disk.

Tower-Of-Hanoi

Tower-Of-Hanoi

Approach:

  • Recursively Move N-1 disk from source to Auxiliary peg.
  • Move the last disk from source to destination.
  • Recursively Move N-1 disk from Auxiliary to destination peg.

Code:


Output:

Move disc 1 from A to C
Move disc 2 from A to B
Move disc 1 from C to B
Move disc 3 from A to C
Move disc 1 from B to A
Move disc 2 from B to C
Move disc 1 from A to C
Move disc 4 from A to B
Move disc 1 from C to B
Move disc 2 from C to A
Move disc 1 from B to A
Move disc 3 from C to B
Move disc 1 from A to C
Move disc 2 from A to B
Move disc 1 from C to B

1 Response

  1. Carlos de la Torre says:

    As a complement to your post, I think you will be interested in this: https://thewalnut.io/visualizer/visualize/1322/342/ Instead of using recursion, the solution is based on a really simple, iterative, program (available in the same site) that’s guaranteed to solve Towers of Hanoi in the minimum number of steps.

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