Python/maths/Hanoi.py
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2019-07-01 16:10:18 +08:00

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Python

"""Tower of Hanoi."""
# @author willx75
# Tower of Hanoi recursion game algorithm is a game, it consists of three rods
# and a number of disks of different sizes, which can slide onto any rod
import logging
log = logging.getLogger()
logging.basicConfig(level=logging.DEBUG)
def Tower_Of_Hanoi(n, source, dest, by, movement):
"""Tower of Hanoi - Move plates to different rods."""
if n == 0:
return n
elif n == 1:
movement += 1
# no print statement
# (you could make it an optional flag for printing logs)
logging.debug('Move the plate from', source, 'to', dest)
return movement
else:
movement = movement + Tower_Of_Hanoi(n - 1, source, by, dest, 0)
logging.debug('Move the plate from', source, 'to', dest)
movement = movement + 1 + Tower_Of_Hanoi(n - 1, by, dest, source, 0)
return movement