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* ci(pre-commit): Add pep8-naming to `pre-commit` hooks (#7038) * refactor: Fix naming conventions (#7038) * Update arithmetic_analysis/lu_decomposition.py Co-authored-by: Christian Clauss <cclauss@me.com> * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * refactor(lu_decomposition): Replace `NDArray` with `ArrayLike` (#7038) * chore: Fix naming conventions in doctests (#7038) * fix: Temporarily disable project euler problem 104 (#7069) * chore: Fix naming conventions in doctests (#7038) Co-authored-by: Christian Clauss <cclauss@me.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
class Things:
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def __init__(self, name, value, weight):
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self.name = name
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self.value = value
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self.weight = weight
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def __repr__(self):
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return f"{self.__class__.__name__}({self.name}, {self.value}, {self.weight})"
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def get_value(self):
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return self.value
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def get_name(self):
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return self.name
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def get_weight(self):
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return self.weight
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def value_weight(self):
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return self.value / self.weight
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def build_menu(name, value, weight):
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menu = []
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for i in range(len(value)):
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menu.append(Things(name[i], value[i], weight[i]))
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return menu
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def greedy(item, max_cost, key_func):
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items_copy = sorted(item, key=key_func, reverse=True)
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result = []
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total_value, total_cost = 0.0, 0.0
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for i in range(len(items_copy)):
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if (total_cost + items_copy[i].get_weight()) <= max_cost:
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result.append(items_copy[i])
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total_cost += items_copy[i].get_weight()
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total_value += items_copy[i].get_value()
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return (result, total_value)
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def test_greedy():
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"""
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>>> food = ["Burger", "Pizza", "Coca Cola", "Rice",
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... "Sambhar", "Chicken", "Fries", "Milk"]
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>>> value = [80, 100, 60, 70, 50, 110, 90, 60]
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>>> weight = [40, 60, 40, 70, 100, 85, 55, 70]
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>>> foods = build_menu(food, value, weight)
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>>> foods # doctest: +NORMALIZE_WHITESPACE
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[Things(Burger, 80, 40), Things(Pizza, 100, 60), Things(Coca Cola, 60, 40),
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Things(Rice, 70, 70), Things(Sambhar, 50, 100), Things(Chicken, 110, 85),
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Things(Fries, 90, 55), Things(Milk, 60, 70)]
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>>> greedy(foods, 500, Things.get_value) # doctest: +NORMALIZE_WHITESPACE
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([Things(Chicken, 110, 85), Things(Pizza, 100, 60), Things(Fries, 90, 55),
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Things(Burger, 80, 40), Things(Rice, 70, 70), Things(Coca Cola, 60, 40),
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Things(Milk, 60, 70)], 570.0)
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"""
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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