Learn Recursion by Solving the Tower of Hanoi Puzzle - Step 46

Tell us what’s happening:

Hi, I get the following message "
Your code raised an error before any tests could run. Please fix it and try again."
I have been stuck for hours and can’t find what’s wrong.

Your code so far

NUMBER_OF_DISKS = 4
rods = {
    'A': list(range(NUMBER_OF_DISKS, 0, -1)),
    'B': [],
    'C': []
}

# User Editable Region

 def move(n, source, auxiliary, target):
    if n > 0:
        #move n - 1 disks from source to auxiliary, so they are out of the way
        move(n - 1, source, auxiliary, target)
    
        rods[target].append(rods[source].pop())
        
        #display starting configuration
        print(rods, '\n')
              

# User Editable Region

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

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0

Challenge Information:

Learn Recursion by Solving the Tower of Hanoi Puzzle - Step 46

Hello Madermx,

Can you try resetting your code and type it again?

1 Like

Well thank you ! It works just fine now. when upset reset. Is that the take home message :sweat_smile:?

1 Like

Hahaha, it doesnt happen that much. But yeah occasionally it’s hard to figure what was wrong, could be a magic space somewhere we didn’t see, or something accidently changed in the code before or after… It just easier to start fresh sometimes.