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

Python
1

The code seems fine, but the tester is not accepting. I even ran the following steps and they seemed to be working fine as well, though the testing of the subsequent steps may not depend on the code in step 31https://www.freecodecamp.org/learn/scientific-computing-with-python/learn-recursion-by-solving-the-tower-of-hanoi-puzzle/step-31

2

Could you share your code?

3

Yeah sure. Is the link creating an issue? If you click it, it should take you to the code

4

Yeah, but not to the changes that you made.

6

The issue is with this piece:

def make_allowed_move(rod1, rod2):
    forward = False
    if not rods[target]:
        forward = True
    elif rods[source] and rods[source][-1] < rods[target][-1]:
        forward = True
    if forward:
        print(f'Moving disk {rods[source][-1]} from {source} to {target}')
        rods[target].append(rods[source].pop())
    else:
        print(f'Moving disk {rods[target][-1]} from {target} to {source}')
        rods[source].append(rods[target].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}')
7

Thanks, test is a bit strict in this step, if you add space after the # on the below line, it will pass.

    # display our progress
8

Thanks a lot man. Done it! The tester’s gonna give people sleepless nights one of these days. New year’s greetings

1 Like
9

hey Sanity, i got the same problem but already had space in between the comment and the hashtag. nevertheless its not passing :frowning: have i misunderstood smtn here?

def make_allowed_move(rod1, rod2):
    forward = False
            if not rods[target]:
                forward = True
            elif rods[source] and rods[source][-1] < rods[target][-1]:
                forward = True
            if forward:
                print(f'Moving disk {rods[source][-1]} from {source} to {target}')
                rods[target].append(rods[source].pop())
            else:
                print(f'Moving disk {rods[target][-1]} from {target} to {source}')
                rods[source].append(rods[target].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}')
10

Hey @d.v.behrendt, for convenience please start new thread.

11

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