PARTS file with Part# as the hash key (K) includes records with the following Part# values:2360, 3760, 5232, 4692, 4871, 2659, 1821, 3074, 7115, 1620, 2428, 1943, 4750, 2975, 4981, 1111, 3123, 3211, 5654, and 2208. The hash file has 30 cells , numbered 0 to 29. Eachcell holds one record. Calculate the average search length for searching all entries
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PARTS file with Part# as the hash key (K) includes records with the following Part# values:2360, 3760, 5232, 4692, 4871, 2659, 1821, 3074, 7115, 1620, 2428, 1943,
4750, 2975, 4981, 1111, 3123, 3211, 5654, and 2208. The hash file has 30 cells , numbered 0 to 29. Eachcell holds one record.
- Calculate the average search length for searching all entries.
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- Password Cracking Each student should be able to access* one PassXX.hash file. This file contains 4 unsalted md5 password hashes (md5 is commonly used for hashing passwords, though it is a bit weak for modern use. It is very important to salt passwords before hashing them, since leaving them unsalted makes them easier to crack. However, many sites fail to do this). Your assignment is to use Hashcat (or another password cracking or password "recovery" tool) to retrieve the original passwords from the hashes, and submit the password/hash pairs. Each set of hashes contains 1 very easy password and 3 slightly challenging passwords of differing format. Link to hashcat: https://hashcat.net/hashcat/ Note: You will also need one or more dictionaries to perform a dictionary attack. *access: Files are accessible based on your last name. You should see a large number of files that are not accessible due to your account having a wrong last name, and one file that is accessible that lacks…2. load_friendsdb This function does the reverse of save_friendsdb -- it takes a single argument, filename, and opens that specified file for reading. Then it reads the file one line at a time and creates a new friends database to return. Like in the previous function, each line will contain a friend's name followed by a tab, then the friend's height, and then a newline. Sample calls should look like this: >>> load friendsdb("friendsdb.tsv") [{'name': ' bimmy', 'height': 600}, {'name': 'Ian Donald Calvin Euclid Zappa', height': 175}]What collection-type data type is most useful with data values that are heterogeneous and may be processed differently? record data types arrays associative arrays hashes
- 2. load_friendsdb This function does the reverse of save_friendsdb -- it takes a single argument, filename, and opens that specified file for reading. Then it reads the file one line at a time and creates a new friends database to return. Like in the previous function, each line will contain a friend's name followed by a tab, then the friend's height, and then a newline. Sample calls should look like this: >>> load_friendsdb("friendsdb.tsv") [{'name': ' bimmy', 'height': 600}, {'name': Ian Donald Calvin Euclid Zappa', height': 175}]A ValueError exception is raised if you try to retrieve a value from a dictionary using a nonexistent key. True or FalseData structure and advance programming: For an open hashing scheme with 1000 buckets and 2000 records,What is the maximum number of reads it takes to locate a record ?*show all work*
- struct insert_into_hash_table { // Function takes a constant Book as a parameter, inserts that book indexed by // the book's ISBN into a hash table, and returns nothing. void operator()(const Book& book) { ///// /// TO-DO (8) ||||. // Write the lines of code to insert the key (book's ISBN) and value // ("book") pair into "my_hash_table". /// END-TO-DO (8) // } std::unordered_map& my_hash_table; };Assume that grade records are dictionaries that always contain three keys: "Assi gnments", "Midterm“, and "Final". An example of such a record might be: {"Assignments" :[99, 98, 100, 100, 80], "Midterm" :95, "Final" : 90} Note that the "Assignments" key is associated with a list, rather than a single integer; this is because there were 5 assignment grades in the class. All numeric values will be in the range 0 to 100 (i.e. they are percent ages). Also assume that dictionary_students is a dictionary in which the keys are student names and the values are grade records. Define a function called final_grades () that accepts dictionary_students as its only parameter. The function should add a new key-value pair to each grade record in dictionary_students. The key for this pair should always the be word "Grade", and the value should be the student's final overall grade in the class. The final grade can be calculated according to the following information from the course syllabus: • Each…PYTHON CODE (DATABASE) #flask_SQLAchemy using: db.session.add() and db.session.delete (add): Implement a database code that allows the user to enter the name of a fruit. This fruit should be saved in a list of favorites. If it’s already on the list, nothing should happen. (delete):Now the user will be allowed to enter a name of a fruit. This fruit should be deleted from the list of favorites. If it’s not on the list, nothing should happen. (output): The ouput page should return the statement “You have X saved fruits”, where X is the number of fruit the user has saved, as well as a list of the saved fruits. The number should increment when a new fruit is entered, and decrement when a fruit is deleted.
- Hash Search Design a hash table which the phone number is the key word and can be used to do search. The phone number is looked on as key and thus the hash function should be designed based on it. Basic Requirements 1) Each record contains 3 data items, i.e. name, sex and phone number. 2) Read the datum from txt file, use phone number as the key to design hash function, using open addressing method to solve conflicts. Build hash table and show highest number of hashes. There are 450 records in total, and the size of hash table is defined as 467. The maximum number of hashes is required to be no more than 80 3) When the user input a phone number, your program should do hash search based on this number. If the number dose exist then the corresponding information should be shown, and the number of hashes should be shown as well. If the number does not exist in the table, still show the number of hashes and the information My data LiuJing Female 13814231733 WangAnqi Male 15855129526…Which search method is the most efficient for an ordered file? a) binary search b) hashing method c) linear searchAttached File: a2provided: grades = [[71, 14, 41, 87, 49, 93],[66, 73, 54, 55, 94, 79],[20, 51, 77, 20, 86, 15],[79, 63, 72, 57, 63, 73],[30, 66, 78, 65, 41, 45],[11, 83, 51, 47, 68, 63],[99, 43, 85, 86, 24, 75],[67, 102, 11, 84, 64, 109],[16, 24, 101, 78, 55, 89],[100, 26, 37, 95, 106, 100],[55, 77, 30, 34, 28, 15],[87, 67, 13, 71, 67, 83],[95, 65, 94, 56, 15, 92],[102, 23, 36, 39, 60, 39],[90, 59, 96, 105, 83, 16],[101, 40, 17, 12, 44, 36],[39, 63, 96, 12, 65, 82],[95, 20, 105, 34, 69, 95],[95, 93, 75, 18, 105, 102],[35, 15, 82, 106, 73, 30],[80, 52, 67, 49, 11, 88],[86, 17, 44, 75, 78, 49],[22, 60, 74, 110, 92, 37],[13, 14, 15, 82, 75, 57],[71, 106, 15, 77, 30, 98],[43, 80, 76, 85, 102, 53],[26, 98, 60, 80, 104, 79],[12, 28, 40, 106, 88, 84],[82, 75, 101, 29, 51, 75],[20, 31, 84, 35, 19, 85],[84, 63, 56, 101, 83, 102],[25, 106, 36, 24, 61, 80],[86, 75, 89, 47, 28, 27],[38, 48, 22, 72, 53, 83],[70, 34, 46, 86, 32, 58],[83, 59, 38, 16, 94, 104],[62, 110, 13, 12, 13, 83],[90, 59, 55,…