- UID
- 1417563
- 在线时间
- 小时
- 注册时间
- 2019-8-29
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
DS的核心点在于判断所给出的条件是否有(唯一解或能否求出解),而不在于解的本身,所以我通常不会花时间去求很复杂的解,只要判断能求出来,既算过。这里的唯一解指的是针对问题的唯一,举个OG20的例子:
354.A company makes and sells two products, P and Q. The costs per unit of making and selling P and Q are $8.00 and $9.50, respectively, and the selling prices per unit of P and Q are $10.00 and $13.00, respectively. In one month the company sold a total of 834 units of these products. Was the total profit on these items more than $2,000.00?
profit有无数种可能,但是 profit on these items more than $2,000.00是唯一、非黑即白的。
|
|