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A simple powerball simulator
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| from numpy.random import choice | |
| JACKPOT = 1.5e9 | |
| NUM_TICKETS = 1000 | |
| def gen_numbers(): | |
| ''' | |
| Pick 5 numbers, without replacement, from 1-69 | |
| and the powerball from 1-26 | |
| To remove the numpy dependency, you can use | |
| import random | |
| numbers = random.sample(list(range(1,70)), 5) | |
| ... etc. | |
| ''' | |
| numbers = list(choice(list(range(1,70)),size=5,replace=False)) | |
| powerball = choice(list(range(1,27)),size=1)[0] | |
| return set(numbers), powerball | |
| def winnings(picked_number_set, | |
| picked_powerball, | |
| drawn_number_set, | |
| drawn_powerball): | |
| ''' | |
| Calculate winnings | |
| ''' | |
| if len(picked_number_set & drawn_number_set) == 0 and picked_powerball == drawn_powerball: | |
| return 4.0 | |
| elif len(picked_number_set & drawn_number_set) == 1 and picked_powerball == drawn_powerball: | |
| return 4.0 | |
| elif len(picked_number_set & drawn_number_set) == 2 and picked_powerball == drawn_powerball: | |
| return 7.0 | |
| elif len(picked_number_set & drawn_number_set) == 3 and picked_powerball != drawn_powerball: | |
| return 7.0 | |
| elif len(picked_number_set & drawn_number_set) == 3 and picked_powerball == drawn_powerball: | |
| return 100.0 | |
| elif len(picked_number_set & drawn_number_set) == 4 and picked_powerball != drawn_powerball: | |
| return 100.0 | |
| elif len(picked_number_set & drawn_number_set) == 4 and picked_powerball == drawn_powerball: | |
| return 50000.0 | |
| elif picked_number_set == drawn_number_set and picked_powerball != drawn_powerball: | |
| return 1.0e6 | |
| elif picked_number_set == drawn_number_set and picked_powerball == drawn_powerball: | |
| return JACKPOT | |
| else: | |
| return 0.0 | |
| def jackpot(picked_number_set, | |
| picked_powerball, | |
| drawn_number_set, | |
| drawn_powerball): | |
| return picked_number_set == drawn_number_set and picked_powerball == drawn_powerball | |
| def simulation(): | |
| picks = [] | |
| for i in range(NUM_TICKETS): | |
| picks.append(gen_numbers()) | |
| trials = 0 | |
| total_winnings = 0.0 | |
| while True: | |
| drawn_number_set, drawn_powerball = gen_numbers() | |
| trials = trials + 1 | |
| for picked_number_set, picked_powerball in picks: | |
| total_winnings = total_winnings + winnings(picked_number_set, | |
| picked_powerball, | |
| drawn_number_set, | |
| drawn_powerball) | |
| if jackpot(picked_number_set, | |
| picked_powerball, | |
| drawn_number_set, | |
| drawn_powerball): | |
| print('JACKPOT!') | |
| print('Trials: {} Spent: {:,.2f} Total winnings: {:,.2f}'.format(trials, | |
| NUM_TICKETS*trials*2.0, | |
| total_winnings)) | |
| return | |
| print('Trials: {} Spent: {:,.2f} Total winnings: {:,.2f}'.format(trials, | |
| NUM_TICKETS*trials*2.0, | |
| total_winnings)) | |
| if NUM_TICKETS*trials*2.0 - total_winnings >= JACKPOT: | |
| print('You have spent more than the jackpot and your winnings, why continue?') | |
| return | |
| if trials/104.0 > 25: | |
| print('You have been doing this for 25 years, why continue?') | |
| return | |
| if __name__ == '__main__': | |
| simulation() |
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