How would you design the data structures for a very large social network like Facebook or Linkedln? Describe how you would design an algorithm to show the shortest path between two people (e.g., Me-> Bob-> Susan-> Jason-> You).
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How would you design the data structures for a very large social network like
Facebook or Linkedln? Describe how you would design an
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- Explain the differences between TreeMap, HashMap, and LinkedHashMap in java . Provide an example of when each one would be best.Solve problem on 79 Project Euler. This is a Graph problem in disguise, so the key is to figure out what is node and what is an edge. In other words, what are the things that have relationships in this problem and what defines their relationships? Once you figure that out, you can use topological sort to solve the problem. Create an account on the site to confirm your answer. You can do this in any language, but a key to solving the problem is finding the indegree of each node. The indegree of a node in a directed graph is the number of edges that have that node as a destination,1 or the number of edges that lead into the node. JUNG has a built in method for graphs to do this. The other thing to keep in mind for JUNG is that you can’t make two edges with the same value. So if you’re using a String to represent edges, you can’t have two edges with the value of "A". please use java and intellijSolve problem on 79 Project Euler. This is a Graph problem in disguise, so the key is to figure out what is node and what is an edge. In other words, what are the things that have relationships in this problem and what defines their relationships? Once you figure that out, you can use topological sort to solve the problem. Create an account on the site to confirm your answer. You can do this in any language, but a key to solving the problem is finding the indegree of each node. The indegree of a node in a directed graph is the number of edges that have that node as a destination,1 or the number of edges that lead into the node. JUNG has a built in method for graphs to do this. The other thing to keep in mind for JUNG is that you can’t make two edges with the same value. So if you’re using a String to represent edges, you can’t have two edges with the value of "A".
- Consider s = (((1) ∗ 2 + 3) ∗ 5 ∗ 6 + 7). 1. Explain how the word s came to be.2. Draw the word s's tree structure.3. Use GetExp to track the execution of your application (s, 1). Draw a tree with a box for each time a routine is called, in other terms. Include only whether it is an expression, word, or factor in each field, as well as the parsed string s[i],..., s[j 1].I am learning about Depth First Search Graphs in class. In the book we use for class, this pseudocode came up that explains a basic depth-first-search algorithm. I am trying to implement the pseudocode into actual code and I honestly just don't know where to start. I am trying to write an adjacency list, so would that mean that I would have a LinkedList to store an array in? Or is an ArrayList a better choice?Suppose we built a hash table for strings where the hash value (number) associated to each string is just the numeric value of its first character. (Lowercase 'a' is 97, 'b' is 98, 'c' is 99, and so on, through 'p' at 112, 's' at 115, z' at 122, and on to a few special characters; numbers and capital letters are earlier in the sequence.) If we used the simplest implementation shown in class, separate chaining, where each bucket points to a possibly-empty list of values, adding the words "apple", "bag", “aardvark", and "badger" to an otherwise empty table with five buckets would give us something like се. this: 3 аpple aardvark bag badger a. If we then added "snake" and "pear" to the hash table (in that order), where would they go? b. If we then increased the table size to have ten buckets, where would each of the six strings end up? c. Comment on the efficacy of just using the first letter of a string to compute its hash value.
- Write a regular expression, usable with Python's re.search, which captures in its capture groups the parts of a rudamentary URL as defined below: Examples of URLs: http://bing.com https://google.com https://yahoo.com https://www.ycombinator.com/ The pattern should capture: The scheme (the "https://" part) The domain (the part after the scheme and before the top level domain (TLD), e.g. "bing" or "www.ycombinator") The top level domain (aka. TLD) (the last part, eg. "edu", "com", "gov") You do not need to handle URLs with paths (such as http://google.com/foo/bar), unless the path is just / as above, nor do you need to handle URLs with query strings (such as https://example.com?foo=bar). For the last example: >>> re.search(pattern, 'https://www.ycombinator.com/').groups() ('https://', 'www.ycombinator', 'com') Assign your pattern to a variable named pattern.In C++, using on GLFW3 and glad.h, how do you implement a 3D Sphere in terms of implementation details? What is a way to look into how the vertex, and index buffers come into the idea of rendering the 3D Sphere?Like lets say the color of the sphere, was to be white. How would that be implemented?!Create a PowerPoint presentation in which you describe how to iterate over a singly-linked list. Present this information as if you were teaching this material to a classroom of your peers. Be sure to include both the mechanics of the algorithm as well as the Big-O analysis.
- Design and develop a dictionary named “Javabuzzwords” using hash map in java, where as it stores java keywords(key) along with its description as string sentence(value). While adding such keywords into the dictionary, if the keyword already exists in the dictionary which will add the given description along with the concatenation of previous description of the word. If the keyword does not exist, simply add the new description on to the library in respect of the keyword. Get an input keyword and iterate the hash table to display its complete descrption.The size of the largest linkedlist in terms of the number of nodes it contains is unknown.Is there one that you remember being really lengthy?Computer Science Given a dataframe with two columns (x and y), I have found a function on Python that gives a local fit value (essentially between two set values x it gives the average of all values of y). Now the questions asks us to create 2 graphs - one that shows the average per value of x and another one that shows the difference to that average that we found. What does this mean?