Answered: while (number > 8) { mystery = mystery…

Engineering

Computer Science

while (number > 8) { mystery = mystery number - number / 10; * 10 + (number × 10); %3D

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

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In C language
Consider a network of streets laid out in a rectangular grid, In a northeast path from one point in the grid to another, one may walk only to the north (up) and to the east (right). Write a program that must use a recursive function to count the number of northeast paths from one point to another in a rectangular grid. Your program should prompt the user to input the numbers of points to the north and to east respectively, and then output the total number of paths. Notes: 1. Here is a file (timer.h download and timer.cpp download) which should be included in your program to measure time in Window or Unix (includes Mac OS and Linux) systems (use start() for the beginning of the algorithm, stop() for the ending, and show() for printing). 2. The computing times of this algorithm is very high, and the number of paths may be overflow, don't try input numbers even over 16. 3. Name your recursive function prototype as calcPath(int north, int east) to ease grading. 4. Paste your output
write a C++program that finds the total amount to be spent on a vacation. In Main ask the user for the number of days for the trip and the name of the person booking the trip. It should then call FindHotelCost() and pass both of these variables to that function. The FindHotelCost() function should give a message using the persons name who is booking the trip with the hotel bill. The bill will be 550 dollars for each day of the trip. It should then call AddRentalCar() and pass the name and number of days and the hotel bill to that function AddRentalCar() asks the user for the number of miles that were driven on the rental car and calculates the price of the car. It is $50 per day and .08 cents per mile driven. Show this charge to the user and then add it to the hotel bill for the total bill for the stay. Show this total to the user as well with the person’s name booking the trip.
please code in python MCQ are a very popular form of assessment because they can be automatically graded…and the students can choose an answer at random if they don’t know.The goal of this exercise is to write a function scoreMCQ(attempt, correct), where attempt is a string that contains the answers of the student and correct is a string with the correct answers.The function should return the number of correct answers.Check first that both strings have the same length, otherwise raise an exception.If both strings are empty the score should be 0 of course.To test your code, you can copy paste the following assert statements as your main function:assert(scoreMCQ("","")==0), "First test failed"assert(scoreMCQ("TFTF","TTTT")==2), "Second test failed"assert(scoreMCQ("TTTT","TTTT")==4), "Third test failed"assert(scoreMCQ("CCCC","ABCD")==1), "Fourth test failed"print("All tests succesfull")
Mathematical functions introduced in chapter 4 can be used in the mathematical calculations and simulations of the engineering and scientific problems. In these cases, we formulate the mathematical problem and then use the computer for calculations and simulations. Can a computer code solve the math problem and come up with mathematical formulas, i.e. can a computer program do what a mathematician does?
Given a letter, created a function which returns the nearest vowel to the letter. If two vowels are equidistant to the given letter, return the earlier vowel. Examples nearest Vowel("b") - "a" nearestVowel("s") → "u" nearest Vowel ("c") → "a" nearest Vowel("i") → "i"
The food pantry provides its volunteers with keys to unlock doors and a Food Pantry vest to let customers know they work there. There are a limited amount of keys and vests, so volunteers need to check them out of the office.Complete the program by creating a CheckoutEquipment function that takes in the number of keys and vests currently available at the office. If there are enough keys and vests, the function should reduce the number of keys and vests by 1 and return true. Otherwise, the number of keys and vests will stay the same, and the function will return false. Take note that the number of keys and vests will be defined in the main function and the CheckoutEquipment function should modify the values of those variables declared in main. #include <iostream> int main() { int keys = 10; int vests = 10; bool checked_out = CheckoutEquipment(keys, vests); if (checked_out) { std::cout << "Successfully checked out.\n"; } else { std::cout << "Not…
5. Given an integer n, you need to find the digital root of that integer using a recursive function. If n has only 1 digit, then its digital root is n. Otherwise, the digital root is equal to the digital root of the sum of the digits of n. The process continues until a single-digit number is reached. For example, digital_root of 576 is calculated as: digital_root (576) = 5+7+ 6 = 18 digital_root (18) = 1 +8=9 digital_root (9) = 9 Programming Language :- C So, the digital root of 576 is 9