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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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