cheap and signs

Ann has recently started commuting by subway. We know that a one ride subway ticket costsARubles. Besides, Ann found out that she can buy a special ticketMRides (she can buy it several times). It costsBRubles. Ann did the math; she will need to use subwayNTimes. help Ann, tell her what is the minimum sum of money she will have to spend to makeNRides?Input The single line contains four space-separated IntegersN,M,A,B(1? ≤?N,?M,?A,?B? ≤? (1000)-the number of rides Ann has planned, the number of ri

I advocate that products should be simple and adequate. This is the foundation of a good user experience. However, the ultimate goal of any product design is to sell money for life. Therefore, the design of any product should never be too infatuated with the theory in textbooks, which are not practical. Most of such products aim to satisfy their own spiritual world or confuse VC. Something that is too simple. If users do not know the goods, they will think it is not worth the money. Sometimes u

Cheap VM really cannot believe it! In addition to the last. htacess file, I only moved the website and the program was not moved. Today I found a bunch of problems. ; Magic quotes for incoming GET/POST/Cookie data. Magic_quotes_gpc = Off ; Magic quotes for runtime-generated data, e.g. data from SQL, from exec (), etc. Magic_quotes_runtime = Off ; Use Sybase-style magic quotes (escape 'with ''Instead \'). Magic_quotes_sybase = Off It

As long as you find that adding a character and deleting one character is equivalent, it's a pretty naked interval dp.Because adding a character x at the current position is equivalent to deleting the character X in his symmetrical position, so long as the deletion is considered, the deletion fee is the addition and deletion of the minSet F[I][J] for the price from I to J, the length from small to large enumeration update on the line F[i][j]=min (F[i][j-1]+cost[s[j]],f[i+1][j]+cost[s[i]]), if S[

earned, then leave is a matter of sooner or later! third, let them see hope is always an outside chain Commissioner, certainly no one can persist, do good should be able to reward, the appropriate time for him to promote promotion; In addition to these also let them see the industry's prospects and the company's hope, such as some more successful site is how to optimize out, how much money to make, etc. These cases can at least let them know to do this line is a bit of hope, do SEO confidence

, happy traveling". In the next three months, through the three activities of "youdao", "Happy Flying chess", and "", we advocate that all traffic participants abide by traffic regulations and make travel civilized and polite. Among them, the biggest highlight is "youdao". From October 16 to October 16, all riders who sign up for the event will not be in violation of traffic laws within the next 49 days. According to the traffic signs, no lights, no v

Technical Background:Nowadays, cars are becoming more and more popular. No matter which type of car you are driving, you must have knowledge about safe driving and transportation. First, you must learn the theoretical knowledge before obtaining a driver's license, and then use the actual driving experience.Driving Technology to get a driver's license can ultimately get the driving qualification.But now there are more and more traffic accidents, many of which are caused by our own driving technol

First step: Create a new blank Word document, and set the page layout to landscape. Step two: Insert a text box where we want to write text and insert a picture. Step three: In one of the text boxes, insert a non-smoking picture that we do with Photoshop. Step Fourth: Insert WordArt in another text box Step Fifth: Adjust the size and style of the WordArt. I have added a reflection effect here, you can set according to your own preferences. Triple Recommendation: Click for free Dow

Slow-running old computers make you extremely inefficient? Thanks to the rapid development of processor technology in recent years, today's laptops are not only lighter and thinner, but also dramatically extend their endurance while performance soars. These advantages may not allow you to generate enough power to change the machine, but once your notebook appears in the following "signs of aging", then it really should be upgraded. 1. Slow start

Everyone seems to be excited about the new neural network architecture of the Capsule Network (capsnet), I am no exception, can not help to use the capsule network to establish a road side traffic signs identification system, this article is the introduction of this process, of course, also includes some basic concepts of the capsule network elaborated. The project, developed using TensorFlow, is based on the Sabour,nicholas Frosst and Geoffrey E. Hin

The string data is enclosed in single quotation marks, and the + sign is used to concatenate the strings. Database fields are integral type of time do not add single quotation marks, is a string to add, other types according to the actual situation, the double quotation marks are used to stitch strings, single quotation marks are the inherent wording of SQL, because you want to be dynamic splicing, involving variables, so you want to use "+" to combine each string fragment. The end result is a S

Base64 plus signs (+) in the URL passed after base64 are changed to space links and cannot be correctly redirected. functions of the urlencode class cannot be used, only spaces in the string can be replaced with the plus sign on the receiving page. how can I replace them? Note that there is a space here, not % 20 ------ solution ------------------ $ urlstr_ireplace (, +, $ var); base64 plus sign After base64, all the plus

Sometimes the calendar program involves the sequence of 12 Chinese zodiac signs and Related algorithms. Here we will summarize: Algorithm:The year minus 3 divided by 12, and the remainder is the serial number of the corresponding 12 zodiac signs. If the remainder is 0, the serial number is 12. Then, follow the instructions below to get the Chinese zodiac:One mouse, two cows, three tigers, four rabbits,Wu Lo

To see whether a person is a long life there are many kinds of statements, often heard there are longer eyebrows, high forehead, large earlobe and Palm lifeline, these from the face and the signs of life is not scientific, not all letter, and some of the physiological basis, but lack of universality, such as skinny, can sleep, no Subar, no disease before 60 years old. To be able to sleep, for example, some people can lie down to sleep, live long, but

Python operator ** (two multiplication signs are the multiplication party), and python multiplication party A multiplication Number *. If the operand is two digits, the two digits are multiplied. For example, 2*4, the result is 8.** Two multiplication signs are the multiplication parties. For example, 3 ** 4, the result is the 4 power of 3, and the result is 81. * If the string, list, And tuples are multi

realized that they should actually use Linux. The following 9 signs may prove that you are a great fit for a Linux system, and you may find it really worth a try.1, you are still using the XP system and there is no plan to upgradeThe reason you don't want to upgrade your new system may be that the computer is too old to run a new system, or just because it's a win7 or Win8 interface or way of operation. Or just too lazy for this upgrade to spend (PS:

Many public places are not allowed to attract, because smoking not only harmful to health, but also affect the health of others, but also pollute the environment, so in some places it is necessary to put a "no smoking sign", as in many public places see the same signs. So how do we make this "no smoking sign"? In fact, we only need to use a software, Word can complete this logo. The following Word federation to share with you the prohibition of smokin

Seven signs indicate that you may be vulnerable to APT attacks. APT attacks, that is, Advanced Persistent penetration attacks (APT) or target attacks, are designed to avoid existing management policies and solutions in the target network, therefore, detecting them is a major challenge. As we have emphasized in the previous articles on five misunderstandings of APT attacks, there are no applicable solutions to deal with them; enterprises need to place

[Reprinted] 40 signs indicate that you are still a PHP Cainiao, and you are a PHP Cainiao. if you: 1. do not use tools such as phpDoc to properly comment your code 2. turning a blind eye to excellent integrated development environments such as ZendStudio or EclipsePDT 3. I have never used any form of version control system, such as Subclipse4. not using [Reprinted] 40 signs that you are still a PHP rookie Y

APT attacks, that is, advanced persistent penetration attacks (APT) or target attacks, are designed to avoid existing management policies and solutions in the target network, therefore, detecting them is a major challenge. As we have emphasized in the previous articles on five misunderstandings of APT attacks, there are no applicable solutions to deal with them; enterprises need to place sensors wherever they need them for protection. At the same time, it must have enough equipment to identify n