Question

Write a python script to calculate the average length of the game shortest game , longest game and the overall average length of a snake and ladder game

The game length is the number of throws of the die. We are asked to write a python script which calculate that together with the average

Answer 1

I am not clear with the question but I can help you calculate the average as mentioned in the problem:

The is as follows:

Because as a parent one gets roped into these board (boring?) games
	every so often, and I wanted to calculate the average duration of a
	snakes and ladders game. Turns out it's about 36 moves (though
	admittedly that's for a single-player game). :-)
	> python snakes_and_ladders.py
	Played 10000 rounds, averaged 36.0559 moves, max 324 moves, took 0.508s
	"""
	from __future__ import division
	import random
	import time
	try:
	range = xrange # Make range a generator on Python 2.7
	except NameError:
	pass
	# Defines the snakes and ladders on the board. A low:high item
	# represents a ladder going from low to high, whereas a high:low
	# item represents a snake going from high to low.
	SNAKES_LADDERS = {
	1: 38, 4: 14, 9: 31,
	16: 6,
	21: 42, 28: 84,
	36: 44,
	48: 26, 49: 11,
	51: 67, 56: 53,
	62: 19, 64: 60,
	71: 91, 80: 100,
	87: 24,
	93: 73, 95: 75, 98: 78,
	}
	MAX_SQUARE = 100
	MAX_MOVES = 100000
	def play_one():
	"""Play one game and return the number of moves it took."""
	square = 0
	for num_moves in range(1, MAX_MOVES + 1):
	dice_roll = random.randrange(1, 7)
	square += dice_roll
	square = SNAKES_LADDERS.get(square, square)
	if square >= MAX_SQUARE:
	return num_moves
	return MAX_MOVES
	def play_all(num_rounds):
	"""Play num_rounds games and return tuple of (total, max, time)."""
	start_time = time.time()
	total_moves = 0
	max_moves = 0
	for _ in range(num_rounds):
	num_moves = play_one()
	total_moves += num_moves
	max_moves = max(max_moves, num_moves)
	elapsed_time = time.time() - start_time
	return (total_moves, max_moves, elapsed_time)
	if __name__ == '__main__':
	import argparse
	parser = argparse.ArgumentParser()
	parser.add_argument('-n', '--num-rounds', type=int, default=10000,
	help='number of rounds (games) to play')
	args = parser.parse_args()
	total_moves, max_moves, elapsed_time = play_all(args.num_rounds)
	print('Played {} rounds, averaged {} moves, max {} moves, took {:.3f}s'.format(
	args.num_rounds,
	total_moves / args.num_rounds,
	max_moves,
	elapsed_time,
	))