mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-24 05:21:09 +00:00
07e991d553
* 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:
|
|
def __init__(self, name, value, weight):
|
|
self.name = name
|
|
self.value = value
|
|
self.weight = weight
|
|
|
|
def __repr__(self):
|
|
return f"{self.__class__.__name__}({self.name}, {self.value}, {self.weight})"
|
|
|
|
def get_value(self):
|
|
return self.value
|
|
|
|
def get_name(self):
|
|
return self.name
|
|
|
|
def get_weight(self):
|
|
return self.weight
|
|
|
|
def value_weight(self):
|
|
return self.value / self.weight
|
|
|
|
|
|
def build_menu(name, value, weight):
|
|
menu = []
|
|
for i in range(len(value)):
|
|
menu.append(Things(name[i], value[i], weight[i]))
|
|
return menu
|
|
|
|
|
|
def greedy(item, max_cost, key_func):
|
|
items_copy = sorted(item, key=key_func, reverse=True)
|
|
result = []
|
|
total_value, total_cost = 0.0, 0.0
|
|
for i in range(len(items_copy)):
|
|
if (total_cost + items_copy[i].get_weight()) <= max_cost:
|
|
result.append(items_copy[i])
|
|
total_cost += items_copy[i].get_weight()
|
|
total_value += items_copy[i].get_value()
|
|
return (result, total_value)
|
|
|
|
|
|
def test_greedy():
|
|
"""
|
|
>>> food = ["Burger", "Pizza", "Coca Cola", "Rice",
|
|
... "Sambhar", "Chicken", "Fries", "Milk"]
|
|
>>> value = [80, 100, 60, 70, 50, 110, 90, 60]
|
|
>>> weight = [40, 60, 40, 70, 100, 85, 55, 70]
|
|
>>> foods = build_menu(food, value, weight)
|
|
>>> foods # doctest: +NORMALIZE_WHITESPACE
|
|
[Things(Burger, 80, 40), Things(Pizza, 100, 60), Things(Coca Cola, 60, 40),
|
|
Things(Rice, 70, 70), Things(Sambhar, 50, 100), Things(Chicken, 110, 85),
|
|
Things(Fries, 90, 55), Things(Milk, 60, 70)]
|
|
>>> greedy(foods, 500, Things.get_value) # doctest: +NORMALIZE_WHITESPACE
|
|
([Things(Chicken, 110, 85), Things(Pizza, 100, 60), Things(Fries, 90, 55),
|
|
Things(Burger, 80, 40), Things(Rice, 70, 70), Things(Coca Cola, 60, 40),
|
|
Things(Milk, 60, 70)], 570.0)
|
|
"""
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import doctest
|
|
|
|
doctest.testmod()
|