Compute the weakest precondition for each of the following statements based on their postconditions. 2. if ( x==4) x = y /2+3; else x = y/ 2; {x > 1}
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- Compute the weakest precondition for each of the following statements based on their postconditions. 1. b= 2*a + 3*b 1; a = 2*b {a >= 2}i cant use static void Main(string[] args) for this assignment for C# this is what I have to work with using System; using static System.Console; class GuessingGame { static void Main() { // Write your main here } } This problem relies on the generation of a random number. You can create a random number that is at least min but less than max using the following statements: Random ranNumberGenerator = new Random();int randomNumber;randomNumber = ranNumberGenerator.Next(min, max); Write a program named GuessingGame that generates a random number between 1 and 10. (In other words, in the example above, min is 1 and max is 11.) Ask a user to guess the random number, then display the random number and a message indicating whether the user’s guess was too high, too low, or correct.T/F 2. In Java, only if and if-else expressions are used in selection statements.
- Question 13 In C programming, construct an expression to express the following test condition: Tests that str1 is not equal to "xyz" and the length of str1 is less than or equal to 3b) Given the following function in C++ language. i. 10 20 30 40 50 60 70 80 90 100 void ValveControl (int pressure, int temperature) { if (pressure >=100) { } else { OpenTheValve(); cout 27) { EnableCoolingCoil(); cout<<"Cooling coil enabled\n"; Define the valid and invalid equivalence partition for all possible test case(s) and TWO (2) example data for each partition.Void Do1 (int: &, a. int &b) { a = 5; a = a + b; b = a + 2; } Int main() { Int x = 10; Do1 (x,x); Cout << x << endl; } The output of this program is
- 1-Compute the weakest precondition for the following statements A. x = 2 * (y + 2*x); y=3*x-6 {y > 9} B. if (x >y) y=6*x+ 2 else y= 3 *x+9; {y > 2}Which operator can not be overloaded? (A) + (B) - (C) * (D) ::Using the following description, please replace the return line in C code; /* * logicalShift: logical shift x to the right by n, * where 0 <= n <= 31 * Examples: * logicalShift(0xFFFFFFFF,0) = 0xFFFFFFFF * logicalShift(0xFFFFFFFF,1) = 0x7FFFFFFF * logicalShift(0xFFFFFFFF,2) = 0x3FFFFFFF * logicalShift(0xFFFFFFFF,3) = 0x1FFFFFFF * logicalShift(0xFFFFFFFF,4) = 0x0FFFFFFF * logicalShift(0xFFFFFFFF,8) = 0x00FFFFFF * logicalShift(0xFFFFFFFF,12) = 0x000FFFFF * Legal ops: ! ~ & ^ | + << >> * Max ops: 20 * Rating: 3 * Hints/notes: * */ int logicalShift(int x, int n) { return 2 } You cannot: 1. Use any control constructs such as if, do, while, for, switch, etc. 2. Define or use any macros. 3. Define any additional functions in this file. 4. Call any functions. 5. Use any other operations, such as &&, ||, -, or ?:, not listed in the the "Legal ops" list for the function. 6. Use any form of casting. 7. Use any data type other than int.
- Assignment Write a program in C that converts temperatures between Fahrenheit, Celsius, and Kelvin. Functional Requirements • MUST correctly convert temperatures between scales • MUST read input by prompting the user Nonfunctional Requirements • MUST compile without warnings and errors • MUST print error message "Invalid temperature scale" on invalid input • MUST return 0 on success • MUST return non-0 value on failure Sample run $ ./temp Enter input temperature: 18c 18.00 C converts to: 64.40 F 291.15 Κ The conversion formulas are listed below: Celsius = (Fahrenheit - 32) / 1.8 Kelvin = Celcius + 273.15Programing Language: C++ Your time machine is capable of going forward in time up to 24 hours. The machine is configured to jump ahead in minutes. To enter the proper number of minutes into your machine, you would like a program that can take a start time (in hours, minutes, and a Boolean indicating AM or PM) and a future time (in hours, minutes, and a Boolean indicating AM or PM) and calculate the difference in minutes between the start and future time. A time is specified in your program with three variables: int hours, minutes; bool isAM; // You can also use a char, i.e. A or P for example, to represent 11:50 PM, you would store: hours = 11,minutes = 50, isAM = false or if using a char, hours = 11,minutes = 50, isAM = 'A' This means that you need six variables to store a start and future time. Write a program that allows the user to enter a start time and a future time. Include a function named computeDifference that takes the six variables as parameters that represent the start…Consider the following code (with line numbers): 1 typedef struct_lock_t (int flag; } lock_t; 2 4 6 7 30 11 15 void init (lock_t *mutex) { } // 0-> lock is available, 1 -> held mutex->flag = 0; void lock (lock_t *mutex) ( while (mutex->flag == 1) // TEST the flag ; // spin-wait (do nothing) mutex-> flag = 1; } void unlock (lock_t *mutex) { mutex->flag = 0; // now SET it! This code is defective in that it allows two threads to enter a critical section at the same time. Please give me a sequence of operations where this might occur.