: Find the weakest precondition for the following code. Show all intermediate conditions. Simplify your answerQuestion 4.as much as possible.{} // This is the weakest precondition. Please fill in.x++;{} // This is an intermediate condition. Please fill in.if (z != 5) {{} // This is an intermediate condition. Please fill in.z = x + 1;{} // This is an intermediate condition. Please fill in.y{}%3Dz;} // This is an intermediate condition. Please fill in.{} // This is an intermediate condition. Please fill in.Z =yz;{ z != 0 }// This is the postcondition.

Answered: : Find the weakest precondition for the…

: Find the weakest precondition for the following code. Show all intermediate conditions. Simplify yo Question 4. as much as possible. { } // This is the weakest precondition. Please fill in.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Regular expression to NFA to DFA conversion: Describes the process of taking a unique regular expression, converting that regular expression to an NFA, then converting the NFA into a DFA. Your regular expression must have at minimum two union, two concatenation, and two Kleene star operations. As followed, concatenations of single charaters can be condensed. Your regular expression cannot be a solved problem from any book. You should describe the regular expression with both processes to convert the regular expression to an NFA and the conversion of that NFA into a DFA.
INSTRUCTIONS: Write a C++ script/code to do the given problems. MOVIE PROBLEM: Write a function that checks whether a person can watch an R18+ rated movie. One of the following two conditions is required for admittance: The person is atleast 18 years old. • They have parental supervision. The function accepts two parameters, age and isSupervised. Return a boolean. Example: acceptIntoMovie(14, true) → true acceptIntoMovie(14, false) → false
Write a recursive function that displays an integer value reversely on the console using the following header:def reverseDisplay(value):For example, invoking reverseDisplay(12345) displays 54321. Write a testprogram that prompts the user to enter an integer and displays its reversal.
It is required to implement a MATLAB program By using "user define function" that used to: • Read (100) diagnosis data shown in the table below from the key board. • Display all Patient's data who have a "High Risk "condition only "High Risk" are patient who have an age greater than or equal to 75 If there are no high risk patients the program should terminated with an appropriate message Diagnosis Data Sample No. Patient ID Name Ag Height (cm) Weight(kg) e 1 905792 K.M. Liam 50 166 90 126987 A.H. Noah 60 170 105 100 913376 L.S.Benjami 80 160 85
Python only* Use recursive function*. Define concentricCircles with 4 parameters Use def to define concentricCircles with 4 parameters here is the specification for concentricCircles function: It draws a series of concentric circles, where the first parameter specifies the radius of the outermost circle, and the second parameter specifies the number of circles to draw. When viewed as nested rings, all rings should have the same thickness. The third and fourth parameters specify an outer color and an other color, respectively. The outer color is used for the outermost circle, and then every other circle in to the center alternates between that color and the other color. We will test both how many circles are drawn as well as whether the correct circles are drawn in the correct order. Hint: Each function call frame only needs to draw a single circle. Note that you must use the turtleBeads drawDot function to draw each circle Do not use any kind of loop Within the definition of…
You are working on problem set: HW2 - loops (Pause) Pause) ? variableScope ♡ Language/Type: Java expressions for % A variable's scope is the part of a program in which it exists. In Java, the scope of a variable starts when it is declared and ends when the closing curly brace for the block that contains it is reached. A variable is said to be in scope where it is accessible. Consider the following program: public class Example { public static void main(String[] args) { performTest (); } } public static void performTest() { int count = 12: for (int i = 1; i <= 12; i++) { runSample(); K } } } System.out.print(count); public static void runSample() { System.out.print("sample"); 7 с M 31 In which of these blocks is the variable count in scope for the entirety of the block? runSample method a. b. main method c. for loop d. O performTest method (order shuffled) In which of these blocks is the variable i in scope for the entirety of the block? a. O main method b. O runSample method c. O…
Python only* Use recursive function*. Define concentricCircles with 4 parameters Use def to define concentricCircles with 4 parameters here is the specification for concentricCircles function: It draws a series of concentric circles, where the first parameter specifies the radius of the outermost circle, and the second parameter specifies the number of circles to draw. When viewed as nested rings, all rings should have the same thickness. The third and fourth parameters specify an outer color and an other color, respectively. The outer color is used for the outermost circle, and then every other circle in to the center alternates between that color and the other color. We will test both how many circles are drawn as well as whether the correct circles are drawn in the correct order. Hint: Each function call frame only needs to draw a single circle. Note that you must use the turtleBeads drawDot function to draw each circle Do not use any kind of loop Within the definition of…
C++ A robot is initially located at position (0; 0) in a grid [?5; 5] [?5; 5]. The robot can move randomly in any of the directions: up, down, left, right. The robot can only move one step at a time. For each move, print the direction of the move and the current position of the robot. If the robot makes a circle, which means it moves back to the original place, print "Back to the origin!" to the console and stop the program. If it reaches the boundary of the grid, print \Hit the boundary!" to the console and stop the program. A successful run of your code may look like:Down (0,-1)Down (0,-2)Up (0,-1)Left (-1,-1)Left (-2,-1)Up (-2,0)Left (-3,0)Left (-4,0)Left (-5,0)Hit the boundary! or Left (-1,0)Down (-1,-1)Right (0,-1)Up (0,0)Back to the origin! About: This program is to give you practice using the control ow, the random number generator, and output formatting. You may use <iomanip> to format your output. You may NOT use #include "stdafx.h".
Ex: Let A1 ={x, y}, A2 ={1, 2}, and A3 ={a, b}, Find A1 × A2, (A1 × A2) × A3, A1 × A2 × A3.
Assume the parameters in the following code are being passed by reference. What numbers reside in the variables a and b after the swap takes place? Next, assume the parameters are being passed by value-result. What numbers reside in the variables a and b after the swap takes place this time? void swap(int x, int y, int z){ int tmp = x; x = y; y = z; z = tmp;} int main(){ int a = 3; int b = 4; swap(a, b, b);}
Complete the following function using pass-by-reference: void findMax(int &max, int a) which assigns value ‘a’ to ‘max’ if a > max. Write a pseudo-code then implement a program in C language to find the maximum in a sequence of numbers using this function.
Write these in Pseudocode #1a – In pseudocode, write a call to a function that passes 1 Integer variable and 1 Integer array, and saves a Boolean value in return. #1b – In pseudocode, write the function that accepts 1 Integer and 1 Integer array and returns a Boolean. In the function, search the Integer array with a for-loop, and if the Integer parameter is found in the array, return false. If the Integer parameter is not found, return true. #2a – In pseudocode, write a call to a module that passes 1 Integer variable, 1 Real variable, 1 String constant, and 1 String literal as arguments. #2b – In pseudocode, write the module header that accepts 1 Integer, 1 Real, and 2 Strings as parameters. #3 – This pseudocode has multiple problems. Fix the calling statement and the definition below so that the routine accepts 3 grades as parameters and returns the average into a variable.…