Compute the weakest precondition for each of the following statements based on their postconditions. b= 2*a + 3*b – 1; a = 2*b {a >= 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.
b= 2*a + 3*b – 1; a = 2*b {a >= 2}
if ( x==4) x = y /2+3; else x = y / 2; {x > 1}
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- Compute the weakest preconditions of the following statements for the given postconditions. Assume all variables are integers1)a = 2*b + 1;b = a*a + 1;{ a > 10 } 2)if (b > 0)a = 4*b - 10;elsea = b + 172;{ a > 0 }Compute the weakest precondition for each of the following sequencesof assignment statements and their postconditions:1. a = 2 * b + 1;b = a - 3{b < 0}2. a = 3 * (2 * b + a);b = 2 * a - 1{b > 5}Can I please have the answer in C++ language 4.7: Time Machine 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…
- Explain these c++ statements void bar(int panam) {panam +=1;}State the order of evaluation of the operators in each of the following C statements andshow the value of x after each statement is performed.a) x = 7 + 3 * 6 / 2 - 1;b) x = 2 % 2 + 2 * 2 - 2 / 2;c) x = ( 3 * 9 * ( 3 + ( 9 * 3 / ( 3 ) ) ) );T/F 2. In Java, only if and if-else expressions are used in selection statements.
- Write the following statements in terms of ?, ?, ?, and logical connectives:a. Either 4 > 1 or 4 < 5.b. If 3 ≤ 3 , then 2 > 2. c. It is not the case that 2 > 2 or 4 > 1Write the following compound statement in terms of the simple statements p, q, and r. "I go to office hours and ask questions, and my professor does not remember me." p: I go to office hours. q: I ask questions. r: My professor remembers me.In a Java if-statement, a _________ goes in the blank in the following: If(_________)
- 2a - Determine the weakest precondition for the following sequence of expressions. Pleaseprovide all your work including calculations, logic implications if any applies, and final answer.(10 points){ ? } a = 4 * (3 * b - a); b = 4 * a - 6; { b > 10 }2b - Determine the strongest precondition for the following if-else statement. Please provide allyour work including calculations, logic implications if any applies, and final answer. (15 points){ ? } if (x > y) then y = 2 * x - 1 else y = 3 * x + 1; {y>7}State the order of evaluation of the operators in each of the following Java statements, and show the value of x after each statement is performed: a) int x =7+3 *6/2-1; b) int x =2% 2+2*2-2/2;You will get practice in this assignment in the following areas in C/C++:• Writing a simple C++ program• Compiling and linking• Logical expressions• Simple arithmetic and/or assignment statements• Standard Input and output• Variable Declaration• Simple If statements• Simple while statement• Declaring constants and variables• Good programming practices Programming Specifications:1. Your program must produce the minimal bill and coin count.2. Your program must accept values between 1 and 1,000,000 pennies. If a number is entered outside that range your program should continue to ask for a valid number.3. No Global Variables BUT your program must use global constants.4. You must use declared constants in your program and not literal values.5. Only print out non-zero values.. So, if there are no Five’s ….then don’t print zero fives. Design Considerations/Algorithms To see if you need to issue 100 dollar bills you divide the amount of pennies by the number of pennies in a 100 dollar bill.…