mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-12-24 12:10:16 +00:00
47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
import random
|
|
from typing import List
|
|
|
|
|
|
class Dice:
|
|
NUM_SIDES = 6
|
|
|
|
def __init__(self):
|
|
""" Initialize a six sided dice """
|
|
self.sides = list(range(1, Dice.NUM_SIDES + 1))
|
|
|
|
def roll(self):
|
|
return random.choice(self.sides)
|
|
|
|
def _str_(self):
|
|
return "Fair Dice"
|
|
|
|
|
|
def throw_dice(num_throws: int, num_dice: int = 2) -> List[float]:
|
|
"""
|
|
Return probability list of all possible sums when throwing dice.
|
|
|
|
>>> random.seed(0)
|
|
>>> throw_dice(10, 1)
|
|
[10.0, 0.0, 30.0, 50.0, 10.0, 0.0]
|
|
>>> throw_dice(100, 1)
|
|
[19.0, 17.0, 17.0, 11.0, 23.0, 13.0]
|
|
>>> throw_dice(1000, 1)
|
|
[18.8, 15.5, 16.3, 17.6, 14.2, 17.6]
|
|
>>> throw_dice(10000, 1)
|
|
[16.35, 16.89, 16.93, 16.6, 16.52, 16.71]
|
|
>>> throw_dice(10000, 2)
|
|
[2.74, 5.6, 7.99, 11.26, 13.92, 16.7, 14.44, 10.63, 8.05, 5.92, 2.75]
|
|
"""
|
|
dices = [Dice() for i in range(num_dice)]
|
|
count_of_sum = [0] * (len(dices) * Dice.NUM_SIDES + 1)
|
|
for i in range(num_throws):
|
|
count_of_sum[sum([dice.roll() for dice in dices])] += 1
|
|
probability = [round((count * 100) / num_throws, 2) for count in count_of_sum]
|
|
return probability[num_dice:] # remove probability of sums that never appear
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import doctest
|
|
|
|
doctest.testmod()
|