Tell us what’s happening:
My function call will not pass even though I have used source and target as parameters. Is my spacing off?
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': []
}
def make_allowed_move(rod1, rod2):
forward = False
if not rods[rod2]:
forward = True
elif rods[rod1] and rods[rod1][-1] < rods[rod2][-1]:
forward = True
if forward:
print(f'Moving disk {rods[rod1][-1]} from {rod1} to {rod2}')
rods[rod2].append(rods[rod1].pop())
else:
print(f'Moving disk {rods[rod2][-1]} from {rod2} to {rod1}')
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
# User Editable Region
if remainder == 1:
make_allowed_move(source,target)
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 34