Algorithm on which mall is more favorable which pair

To solve this problem, you should consider how to minimize the discount rate! Other factors, such as the duration of the event, will not be considered if the question is not required.

First of all, it can be seen from the observation that 370 yuan of woolen sweater + 230 yuan of T-shirt = 600 yuan, just can get a 5% discount in a shopping mall, since it is a shopping mall, people do not necessarily only sell clothes, when you go to buy daily necessities, the 300 yuan shopping coupon is not still money? So there is no need to worry about the issues mentioned above, and the title does not say that it is a one-time purchase.

The remaining 80 yuan shirt is just less than 100 yuan, even if you buy it in mall A, you can't get a discount, so you can get a 7% discount on the shirt you buy in mall B, which is 56 yuan, so it is equivalent to a total of 356 yuan.

B mall is more favorable! Because according to the preferential conditions of shopping mall A, the most cost-effective algorithm is that Mr. Wang first buys a 370 yuan woolen sweater, then there is a 150 yuan shopping coupon, and then uses the 150 yuan shopping coupon to buy a 230 yuan T-shirt and an 80 yuan shirt only 160 yuan in cash, so Mr. Wang has a total of 530 yuan.

And if calculated according to the preferential conditions of shopping mall B, Mr. Wang only needs 476 yuan when buying the same goods! Therefore, it is more affordable to choose B shopping mall!

The title is ambiguous, and many conditions are very vague! The disconnect with reality is more serious! In fact, the 300 shopping mall will not let you use it directly as cash, since he competes with other shopping malls, other 7% off, if the 50 yuan shopping coupon can be used directly as cash, then it is not equivalent to 5% off?

A 5% off, a 7% off, than what? That is to say, his 5% discount is actually discounted, and there are many conditions attached to it, such as how much you have to spend in order to use the shopping coupon.

Remembering a sentence that the teacher often says, to understand the intention of the questioner, the question of primary school, don't think too complicated, the meaning of the mention is probably that whether it is 300 or 200, it is just a return of 50 shopping coupons. In this case, he will have to pay 370 + 230 + 80-50-50 = 580, so mall B is good.

Elementary school questions will not deliberately embarrass children, and the math teacher is right.

The idea of "helping rookies" is right, but after buying a 370 yuan woolen sweater in mall A, you will return a 50 yuan shopping coupon, and then a 230 yuan T-shirt will return a 50 yuan shopping coupon, a total of 100 shopping coupons can buy 80 yuan of shirts, so the total cost is 370 + 230 = 600 yuan. So in the case of B business.

Full 200 minus 80, (200-80) 200 = 6 folds.

Full 100 minus 50 (100-50) 100 = 5% off.

Let's say that if you move in in September, it will be a little more than a month until October 8th, why do a few people spend 445 yuan on water and electricity bills? Is it a fire?

A few discounts are multiplied by the original ** of the product.

For example, what you said: the original product was 76 yuan, but now it is 6% off.

That's 76 yuan).

Each discount is 10 percent.

If the price is discounted, it is the original commodity price multiplied by 90%.

One percent discount is 10 percent.

Then six percent off is sixty percent.

That is to say, 76 * yuan pull.

X discount is the price * (x * 10)%.

That is to say, 76 * yuan pull.

Whose loss is the discounted part?

It is recommended to read Chinese.

Analysis:1"Introduction to Algorithms" is a book that can be described as "comprehensive", in which the proof of algorithms accounts for a large proportion, which is rare in general algorithm books, and it is also a reflection of its rigor.

The difference between Chinese and English understanding lies in how to derive the algorithm and why the algorithm is correct. However, although these proofs are of great significance, they are generally not as valuable as the algorithms themselves. When I learn algorithms, I first understand the idea of algorithms, then understand the algorithm execution process, then memorize **, then do questions, and finally review the guidance and proof, that is, I know what it is, and then I know why it is so.

You can't just know what it is, you can't grasp the thought, the thought is the essence; And as soon as it came up, it went straight to the proof, and it lacked learning efficiency. (Maybe this is just my personal characteristic) As far as the algorithm execution process itself is concerned, both Chinese and English are the same, and because there is no difference between the pseudo-** itself, read Chinese first to master the algorithm.

2.When participating in international competitions, the topics are described in English; When the research on algorithms is taken to a higher level, the domestic translation materials can no longer meet the learning needs. If you want to progress, reach a high level of field, and achieve "excellence" and "leadership", you must study a lot of foreign literature.

This requires a good command of English.

To sum up, my suggestion is: read the Chinese version of "Introduction to Algorithms", master the algorithm, and then read the explanation and understand it, in order to better use it. Learn English well to prepare for higher levels.

Introduction to Algorithms is very informative, you should read it several times, and it's not too late to read it in English when the time comes.

Every 10 is called a fold.

Therefore, the full 400 minus 210 should be called four seven and a half off.

The correction downstairs is good, the fold is impossible, but the 95 fold is called the nine-five fold, so and so on, the number before the decimal point is read directly, and it is not necessary to read it completely.

Upstairs should be folded, rightly so. But the discount is not called 10% off, how to calculate that there will be no such a 4 times ** discount, the minimum should be 0 discount, which is equal to free delivery.

The upstairs supplement was very humble and in place, and the attitude towards the discussion of problems was good. Recommended as the correct answer.

This algorithm schedules jobs based on the length of the job, that is, the service time of the job, and the short service time will be prioritized for execution.

The disadvantage of the algorithm is that it may not be scheduled for a long time for relatively long jobs, which is not conducive to long jobs. In addition, the service time of the job is set when the user submits the job to the system, and it is inevitable that some users will shorten the service time in order to schedule their jobs first, that is, there are human factors in it.

Hello, adjusting the algorithm can only continue to pay attention to your ** and other people's ** situation, and will not tell anyone about his algorithm, which is confidential. The few people who really know the algorithm are also insiders.

The objective function should be marked with a semicolon at the end.

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