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- ATM machines allow 4 or 6 digit PIN codes and PIN codes cannot contain anything but exactly 4 digits or exactly 6 digits. Your task is to create a function that takes a string and returns true if the PIN is valid and false if it's not. Examples validatePIN("1234") ➞ true validatePIN("12345") ➞ false validatePIN("a234") ➞ false validatePIN("") ➞ false Notes ● Some test cases contain special characters. ● Empty strings must return false.num1 – a positive integer representing the first digit in the combination num2 – a positive integer representing the second digit in the combination num3 – a positive integer representing the third digit in the combination num4 – a positive integer representing the fourth digit in the combination num5 – a positive integer representing the fifth digit in the combination Description: You own a combination lock that only opens when presented with the correct sequence of odd and even numbers that are less than 10. Write a function that takes in 5 integers. Check whether they are in this order: odd, even, odd, even, odd. If they are in the correct order and all below 10, then print the string “You opened the lock.” Otherwise, print “You are locked out.” Enclose function in a while loop and ask user for parameters using input(). Test Cases: >>>comboLock(9, 2, 5, 4, 1) You opened the lock. >>>comboLock(1, 8, 3, 6, 8) “You are locked out.” >>>comboLock(2, 2, 5, 6, 4)…Write a function named “endingWithSlashSlash” that accepts the same parameters as command line arguments (argc and argv). It returns true if at least one of the arguments have a “//” at the end and false otherwise. This function also returns the number of arguments that have “//” at the end. For example, “//” will return true and 1 “one// two three// four” will return true and 2 “one” will return false and 0 “one two” will return false and 0 Please note that for question #5, you cannot refer or use string class, string methods such length() or size() or any string function such as strlen(), strcmp or strstr(). Please use only array notation, pointer to character, and/or pointer arithmetic and make use of the fact that this is a C-string.
- Which line of code reserves space in memory and which line puts a value into memory?LINE 1: int x;LINE 2: x = 1;most_frequent_word() takes a string as the input parameter and returns two values; the word that appears most frequently in that string and the total number of times that word appears in that string. In case of a tie, return the first word that appears in the string. Hint: you can use the unique_words function that you wrote in (4). Sample outputs:>>> data = “chapter one hottest day summer so far drawing close drowsy silence lay over large square houses privet drive cars usually gleaming stood dusty drives lawns once emerald green lay parched yellowing”>>> word = most_frequent_word(data)>>> print(word)('lay', 2)>>> data_2 = "a cat in a hat and a big black bear on a big black rug">>> word = most_frequent_word(data_2)>>> print(word)('a', 4)In C programming language: Write a function that takes one double parameter, and returns a char. The parameter represents a grade, and the char represents the corresponding letter grade. If you pass in 90, the char returned will be ‘A’. If you pass in 58.67, the char returned will be an ‘F’ etc. Use the grading scheme on the syllabus for this course to decide what letter to return.
- What is a stub? Group of answer choices A stub is an inline function with a single line that simply sends a "Hello" message to others, indicating that it has been activated. A stub is a function that has an empty body. It will be developed later. A stub is an inline function with a single line that simply increases the pass in value by one. A stub is a function with a single line that simply prints the name of the function, indicating that it has been activated. A stub is a short function that will generate an error message.Le Chef Heureux Restaurant has 20 tables that can be reserved at 5 p.m., 7 p.m., or 9 p.m. Design a program that accepts reservations for specific tables at specific times; the user enters the number of customers, the table number, and the time. Do not allow more than four guests per table or invalid table numbers or times. If an attempt is made to reserve a table already taken, reprompt the user. Continue to accept reservations until the user enters a sentinel value or all slots are filled. Then display all empty tables in each time slot. For this homework assignment you need to: create a flowchart using RAPTORLe Chef Heureux Restaurant has 20 tables that can be reserved at 5 p.m., 7 p.m., or 9 p.m.Design a program that accepts reservations for specific tables at specific times; the user entersthe number of customers, the table number, and the time. Do not allow more than four guests pertable or invalid table numbers or times. If an attempt is made to reserve a table already taken,reprompt the user. Continue to accept reservations until the user enters a sentinel value or allslots are filled. Then display all empty tables in each time slot. Pseudocode and flowchart (RAPTOR please) if possible. Do not write it in any particular language, that is not required.
- 3. Which among the following shows a valid use of the Direction enumeration as a parameter to the moveCharacter function? Select al that apply. enum Direction { case north, south, west, east}func moveCharacter(x: Int, y: Int, facing: Direction) {// code here} moveCharacter(x: 0, y: 0, facing: .southwest) moveCharacter(x: 0, y: 0, facing: Direction.north) moveCharacter(x: 0, y: 0, facing: .south) moveCharacter(x: 0, y: 0, facing: Direction.northeast)Each function should accept two integer parameters indicating the minimum and maximum X value to be plotted. The functions should have no return values. Create class-level constants for things we might wish to change later, e.g., a char called PLOT_CHAR that holds an “x” (per samples below), another char called FILL_CHAR that holds an unobtrusive character like ASCII 183, generated with a cast, e.g., (char)183. JAVA PLEASE THOSE ARE NOT PERIODS OR DOTS. USE (System.out.print((Char)183); for (.) Please DON'T USE Loops(while);, if, Arrays, lists, or other data structures, objects, libraries, or methods. Sideways Ploty = 20sin(.5x)+20 where -11<=x<=11 ··································x ·······································x ·······································x ···································x ···························x ·················x········x·xx···x··········x····················x ·····························x ····································x…Which of the following is false?a. A function can return one or more values to the statement that invoked it.b. A function can accept one or more items of data passed to it.c. The parameterList in a function header is optional.d. At times, a memory location inside the computer’s internal memory may have more than one name.