Learn Recursion by Solving the Tower of Hanoi Puzzle - Step 31

Python
1

Tell us what’s happening:

I really do not know where I went wrong. It feels like I tried everthing but it still isn‘t right. It would be great if someone could point out what I‘m missing.

Your code so far

NUMBER_OF_DISKS = 3
number_of_moves = 2**NUMBER_OF_DISKS - 1
rods = {
    'A': list(range(NUMBER_OF_DISKS, 0, -1)),
    'B': [],
    'C': []
}

# User Editable Region

def make_allowed_move(rod1, rod2):
    forward = False
    if not rods[rod2]:
        forward = True
    elif rods[rod1][-1] < rods[rod2][-1]:
        forward = True
    if forward:
        print(f'Moving disk {rods[source][-1]} from {source} to {target}')
        rods[rod2].append(rods[rod1].pop())
    else:
        print(f'Moving disk {rods[target][-1]} from {target} to {source}')
        rods[rod1].append(rods[rod2].pop())

    # display our progress
    print(rods)


def move(n, source, auxiliary, target):
    # display starting configuration
    print(rods)
    for i in range(number_of_moves):
        remainder = (i + 1) % 3
        if remainder == 1:
            print(f'Move {i + 1} allowed between {source} and {target}')
            

# User Editable Region

        elif remainder == 2:
            print(f'Move {i + 1} allowed between {source} and {auxiliary}')
        elif remainder == 0:
            print(f'Move {i + 1} allowed between {auxiliary} and {target}')

# initiate call from source A to target C with auxiliary B
move(NUMBER_OF_DISKS, 'A', 'B', 'C')

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Challenge Information:

Learn Recursion by Solving the Tower of Hanoi Puzzle - Step 31

2

Welcome to the forum @SKY000

Here is a comparison of the original code and your code.

The code in blue is the original code, the code in red is your code.
The code in magenta is the overlap.

image
image813×347 40.3 KB

It looks like you modified the code.

You were not asked to do that, only move it.

Please reset the step to restore the seed code and try again.

Happy coding

3

Thank you it worked :grin:

1 Like