标签：背包 weight -- backpack stuffs total 贪心
博客地址：https://www.cnblogs.com/zylyehuo/
# -*- coding: utf-8 -*-
stuffs = [(60, 10), (100, 20), (120, 30)] # 每个商品元组表示(价格, 重量)
stuffs.sort(key=lambda x: x[0] / x[1], reverse=True)
def fractional_backpack(goods, w):
m = [0 for _ in range(len(goods))]
total_v = 0
for i, (price, weight) in enumerate(goods):
if w >= weight:
m[i] = 1
total_v += price
w -= weight
else:
m[i] = w / weight
total_v += m[i] * price
break
return [total_v, m]
print("=========================分数背包问题=========================")
print(f"共{fractional_backpack(stuffs, 50)[0]}元，各买{fractional_backpack(stuffs, 50)[1]}")
print("============================================================")
标签：背包,
weight,
--,
backpack,
stuffs,
total,
贪心
From： https://www.cnblogs.com/zylyehuo/p/17641798.html
