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Control structures
Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.
Switch Statement
The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.
KEY:SALIH
MASSAGE:MICHAEL
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- school has 100 lockers and 100 students. All lockers areclosed on the first day of school. As the students enter, the first student, denotedas S1, opens every locker. Then the second student, S2, begins with the secondlocker, denoted as L2, and closes every other locker. Student S3 begins with thethird locker and changes every third locker (closes it if it was open and opens it ifit was closed). Student S4 begins with locker L4 and changes every fourth locker.Student S5 starts with L5 and changes every fifth locker, and so on, until studentS100 changes L100.After all the students have passed through the building and changed the lockers,which lockers are open? Write a program to find your answer and display all openlocker numbers separated by exactly one space.Complete the following function according to its docstring. def check_password_exclusive(passwd: str) -> bool: """ An exclusive strong password has a length greater than or equal to 6, and contains ONLY letters and numbers. Return True if and only if passwd is considered an exclusive strong password. >>> check_password_exclusive('I<3csc108!') False >>> check_password_exclusive('time2sleep4me') True """Fill in the blank question- Only answer needed without explanation Q. Access control can be achieved by ____________________.
- Crypto Columns The columnar encryption scheme scrambles the letters in a message (or plaintext) using a keyword as illustrated in the following example: Suppose BATBOY is the keyword and our message is MEET ME BY THE OLD OAK TREE. Since the keyword has 6 letters, we write the message (ignoring spacing and punctuation) in a grid with 6 columns, padding with random extra letters as needed: MEETME BYTHEO LDOAKT REENTH Here, we've padded the message with NTH. Now the message is printed out by columns, but the columns are printed in the order determined by the letters in the keyword. Since A is the letter of the keyword that comes first in the alphabet, column 2 is printed first. The next letter, B, occurs twice. In the case of a tie like this we print the columns leftmost first, so we print column 1, then column 4. This continues, printing the remaining columns in order 5, 3 and finally 6. So, the order the columns of the grid are printed would be 2, 1, 4, 5, 3, 6, in this case. This…T T i e arelation R(A, A, A3Ag)if Ay is candidate key then find the number ofI need plagiarism free response only don't try to copy.
- 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.Collision is caused due to the presence of two keys having the same value.a) Trueb) False/** * Inserts the specified key-value pair into the symbol table while maintaining the * ordering of keys. Overwrites the old value with the new value if the symbol table * already contains the specified key. Deletes the specified key (and its associated * value) from this symbol table if the specified value is {@code null}. * * @param key the key * @param val the value * @throws IllegalArgumentException if {@code key} is {@code null} */ public void put(Key key, Value val) { // TODO // Change this code to make sure the list remains sorted! Also, solve this using recursion. // To do this, you will need to add a recursive helper function that takes the front of a // list (Node) as an argument and returns the front of the modified list (Node). if (key == null) throw new IllegalArgumentException("first argument to put() is null"); if (val == null) { delete(key); return; }…
- Please answer all subparts compulsory either dislike is ready... Please alllMongoDB 1) The customers collection includes documents that have accounts as a field that contains an array of values. Write a statement to retrieve a cursor containing all documents where there is only one account. 2) Write a statement that returns only the email addresses of all customer documents. 3) Write a statement to retrieve a cursor containing all customer documents where the active field within the main document (i.e., do not worry about nested documents) is set to true. 4) Write a statement to retrieve a cursor containing all customer documents that do not have the active field within the main document (i.e., do not worry about nested documents). (Hint: Take a look at the Query and Projection operators in the MongoDB documentation to find an operator that helps determine whether a field exists within a document.)A hash function is bi-directional, it allows us to create a fingerprint of a file and also reverse the processes to get the contents of the file Group of answer choices True False