hackerrank competitors

experience to support a series of products, when encountering new opportunities for innovation, whether dare to use, ask yourself, want to do what kind of product, I believe Steve Jobs has made a good example for many product managers.3. Where are the values of the products reflected?Is there a successful product without a user? Is it a successful site? What is the value of this product when you want to be a user-accepted product?4. What is the core function of the product?A product that can im

Analysis of competitors is a very important part of business competition. The same is true for the practitioners of E-commerce. As a platform for E-commerce operations, competitors of the site, of course, also need to focus on analysis. So how to analyze the competitor's website? Here to talk about my little experience, some tool names may not be accurate, have a problem please criticize! One. Look at the

Modern society, whether it is the Internet or the real world, as long as the areas conducive to conflict will inevitably exist competition, since the competition, there will certainly be the first generation. And the first and only one, so everyone is dark am must do the first deal, a look seems to be a dance General Assembly for a leader of the position and make a black and blue (over optimization), the result is still unable to get good rankings. Instead of making big-game optimizations on you

of links. The basic meaning of these services is to add some websites with this service to your site. At the same time, let those websites also add your sites to them. Theoretically, the more websites you join, the higher the popularity of links. However, I have many reserved opinions on how to improve the popularity of site links through this method. (I) Most such sites require a visual chart or text link to the home page. If they ask for a chart link, this will affect the visual effect of the

The use of their competitors to select effective keywords, which requires a certain degree of observation and data analysis capabilities. How to better select the most effective keyword, or select the conversion keyword. We also need to observe the competitor's keywords, which is certain and inevitable. So there are times when competitors can give us favorable conditions, but at the same time opponents are

Remember the first two years to do Baidu bidding, basic as long as make sure to make money, and recently did not necessarily make money, do not yet, it seems that Baidu to achieve their purpose. Do Baidu bidding, and SEO, the basic use of the long tail theory, the previous bid for the long tail keyword for the blue sea, in order to compete with the advertising differences, and the ranking is also very high, the cost is very low. But now a lot of long tail word competition is also very fierce, an

The last two days have been plagued by a tree-shaped knapsack problem. The cause of all this was a knapsack problem, a problem that was done on Hackerrank a year ago.The main topic is:$ to a tree of N nodes, node I for a value of v[i], volume of s[i] goods. Another backpack with a volume m, requires a connecting block on the tree to be loaded into the backpack, \ \ Makes the total value of the selected item the most. $Data range:$N, m\le2000$The naïve

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of the method, see the next chapter of the blog.1228 Sequence summationSource: Hackerrank Base time limit: 3 seconds Space limit: 131072 KB score: 160 Difficulty: 6-level algorithm problem collection attention T (n) = N^k,s (n) = t (1) + t (2) + ... T (n). Given N and K, ask for S (n). For example k = 2,n = 5,s (n) = 1^2 + 2^2 + 3^2 + 4^2 + 5^2 = 55. As a result, output s (n) Mod 1000000007 results. InputLine 1th: A number t that represents the numbe

From September 12 onwards, to now three months, and now the progress is 300/304, the next few problems more difficult, especially DIETPEPSI plus some dynamic programming new problems, they often do not come out to see the answer. Today, I decided to suspend the new question, brush the second time from the beginning, after the new topic, wait until the end of the second again to try to challenge.The second time intends to finish in two months, study discuss version, for each topic can have the be

Continuum.io. It comes packaged with most of the things you'll need ever. The major downside of taking this route is so you'll need to wait for Continuum to update their packages, even when th Ere might be a update available to the underlying libraries. If you is a starter, that should hardly matter.If you face any challenges in installing, you can find more detailed instructions for various OS hereStep 2: Learn the basics of Python languageYou should start by understanding the basics of the la

Look at the ... is to remove the number that must be modified to find the longest non-descending subsequence.Upper_bound+lower_bound to understand. Sometimes-1 sometimes not for a reason.#include 　　1294 modifying an array title Source: Hackerrank Base time limit: 1 seconds space limit: 131072 KB score: 160 Difficulty: 6 level algorithm topic collection focus on giving an integer array A, you can change any number to any positive integer, The result is

The first blog, think about, or to start from C + +, recently looking for a job, interview always ask me if I will C + +, I can only hollow laugh a sound, the last two years have been using python,c++ grammar some forgotten ... Think once is not their own strong language, unexpectedly become their own short board, really some flustered, then rose up and read, decided to regain C + +, and Master as the ultimate goal, rather than simply can use ~Starting from the Internet to find the C + + learnin

---restore content starts---1270 the maximum cost of an array source: Hackerrank Base time limit: 1 seconds space limit: 131072 KB score: 20 Difficulty: 3-level algorithm problem collection concern array A contains n elements A1, A2 ... An. Array B consists of n elements B1, B2 ... BN. And each element of the array, AI, satisfies 1 Line 1th: 1 number N, indicating the length of the array (1 OutputThe maximum cost of output s.Input example510110110Outp

, flask contains reusable data communication modules commonly used in interactive Web projects, and you can generate an interactive feature with just a few lines of code.Vii. development of large-scale projects with DjangoIf you want to develop a complete web framework, try Django, a lot of super-large sites like pinterests and Instagram are developed with Django.Eight, using Python to play the APIAPI is one of the pillars of the web economy, and here is a list of Python third-party API extracts