hats problem
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dotfiles/lib/python/hats_problem.py
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27
dotfiles/lib/python/hats_problem.py
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import random
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class HatsProblem(object):
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def __init__(self, size):
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self.size = size
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def build_hats(self):
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return [self.hat() for _ in range(self.size)]
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def hat(self):
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return random.randint(0, self.size - 1)
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def go(self):
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hats = self.build_hats()
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guesses = [
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self.calculate_guess_modulus(self.sum_of_all_but_i(i, hats), i)
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for i in range(self.size)
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]
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return zip(hats, guesses)
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def calculate_guess_modulus(self, current, desired):
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return ((desired - current) + self.size) % self.size
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def sum_of_all_but_i(self, i, hats):
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return sum(hat for index, hat in enumerate(hats) if index != i)
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