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master
maths/monte_carlo_dice.py
44 строки
1 KB
Caeden Perelli-Harris
Raise error not string (#7945)
06 ноя 2022, 17:54
Не верифицирован
06 ноя 2022, 17:54
daa1c75
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from __future__ import annotations import random 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 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 _ 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()