46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
from utils import get, init_table, print_table
|
|
|
|
def max_haul(capacity, items, names):
|
|
table = init_table(rows=len(items), cols=capacity, default=0)
|
|
items_table = init_table(rows=len(items), cols=capacity, default=[])
|
|
for row in range(len(table)):
|
|
for col in range(len(table[row])):
|
|
kg, value = items[row]
|
|
curr_capacity = col + 1
|
|
|
|
if kg > curr_capacity:
|
|
a = 0
|
|
else:
|
|
a = value + get(table, row - 1, curr_capacity - kg - 1)
|
|
b = get(table, row - 1, col)
|
|
|
|
if a > b:
|
|
rest = get(items_table, row - 1, curr_capacity - kg - 1)
|
|
knapsack = [names.get(items[row])]
|
|
if rest:
|
|
knapsack += rest
|
|
else:
|
|
knapsack = get(items_table, row - 1, col)
|
|
|
|
table[row][col] = max([a, b])
|
|
items_table[row][col] = knapsack
|
|
print_table(table)
|
|
return items_table[-1][-1]
|
|
|
|
water = (3, 10)
|
|
book = (1, 3)
|
|
food = (2, 9)
|
|
jacket = (2, 5)
|
|
camera = (1, 6)
|
|
items = [water, book, food, jacket, camera]
|
|
result = max_haul(6, items, {
|
|
water: 'water',
|
|
book: 'book',
|
|
food: 'food',
|
|
jacket: 'jacket',
|
|
camera: 'camera',
|
|
})
|
|
expected = ['camera', 'food', 'water']
|
|
print(result, expected)
|
|
assert result == expected
|
|
print("Success!")
|