C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Chapter 4, Problem 4.20E
(Validating User Input) The examination-results
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( MindTap - Cenage )Example 5-6 implements the Number Guessing Game program. If the guessed number is not correct, the program outputs a message indicating whether the guess is low or high.
Modify the program as follows: Suppose that the variables num and guess are as declared in Example 5-6 and diff is an int variable. Let diff = the absolute value of (num - guess).
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Suppose diff is not 0. Then the program outputs the message as follows:
If diff is greater than or equal to 50, the program outputs the message indicating that the guess is very high (if guess is greater than num) or very low (if guess is less than num).
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(Even or Odd) Write a program that inputs a series of integers and passes them one at a timeto function isEven, which uses the remainder operator to determine whether an integer is even. Thefunction should take an integer argument and return 1 if the integer is even and 0 otherwise.
(Algebra: solve 2 * 2 linear equations) A linear equation can be solved using Cramer’s rule given in Programming Exercise 1.13. Write a program that prompts the user to enter a, b, c, d, e, and f and displays the result. If ad - bc is 0, report that “The equation has no solution.”
Chapter 4 Solutions
C++ How to Program (10th Edition)
Ch. 4 - (Correct the Code Errors) Identity and correct the...Ch. 4 - (What Does this Program Do?) What does the...Ch. 4 - For Exercises 4.13—4.16, perform each of these...Ch. 4 - For Exercises 4.13—4.16, perform each of these...Ch. 4 - For Exercises 4.13—4.16, perform each of these...Ch. 4 - For Exercises 4.13—4.16, perform each of these...Ch. 4 - (Find the largest) The process of finding the...Ch. 4 - (Tabular Output) Write a C++ program that uses a...Ch. 4 - (Find the Two Largest Numbers) Using an approach...Ch. 4 - (Validating User Input) The examination-results...
Ch. 4 - (What Does this Program Do?) What does the...Ch. 4 - (What Does this Program Do?) What does the...Ch. 4 - (Dangling-else Problem)C++ compliers always...Ch. 4 - (Another Dangling-else Problem) Based on the...Ch. 4 - (Another Dangling-else Problem) Based on the...Ch. 4 - (Square of Asterisks) Write a program that reads...Ch. 4 - (Palindromes) A palindrome is a number or a text...Ch. 4 - (Printing the Decimal Equivalent of a Binary...Ch. 4 - (Checkerboard Pattern of Asterisks) W rite a...Ch. 4 - (Multiples of 2 with an Infinite Loop) write a...Ch. 4 - (Calculating a Circle’s Diameter, circumference...Ch. 4 - What’s wrong with the following statement? Provide...Ch. 4 - (Sides of a Triangle) Write a program that reads...Ch. 4 - (Sides of a Right Triangle) Write a program that...Ch. 4 - (Factorial) The factorial of a nonnegative integer...Ch. 4 - (Modified Account Class) Modify class Account...Ch. 4 - (Enforcing Privacy with Cryptography) The...Ch. 4 - (World Population Growth) World population has...
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- (The conical paper cup problem) You have been given the contract for making little conical cups that come with bottled water. These cups are to be made from a circular waxed paper of 4 inches in radius by removing a sector of length x (see Figure 5-4 below). By closing the remaining part of the circle, a conical cup is made. Your objective is to remove the sector so that the cup is of maximum volume. Instructions Write a program that prompts the user to enter the radius of the circular waxed paper. The program should then output: The length of the removed sector so that the resulting cup is of maximum volume The maximum volume Calculate your answer to two decimal places.Use 3.141592654 for PIarrow_forward(The conical paper cup problem) You have been given the contract for making little conical cups that come with bottled water. These cups are to be made from a circular waxed paper of 4 inches in radius by removing a sector of length x (see Figure 5-4 below). By closing the remaining part of the circle, a conical cup is made. Your objective is to remove the sector so that the cup is of maximum volume. Instructions Write a program that prompts the user to enter the radius of the circular waxed paper. The program should then output: The length of the removed sector so that the resulting cup is of maximum volume The maximum volume Calculate your answer to two decimal places.Use 3.141592654 for PI Format your output with setprecision(2) to ensure the proper number of decimals for testing!arrow_forward5. (Algebra: solve 2 X 2 linear equations) You can use Cramer's rule to solve the following 2 X 2 system of linear equation: ax + by = e cx + dy = f ● x = ed - bf bc ad y = af - ec ad bc - Write a program that prompts the user to enter a, b, c, d, e, and f and display the result. If ad- bc is 0, report that The equation has no solution. Enter a, b, c, d, e, f: 9.0, 4.0, 3.0, -5.0, -6.0, -21.0 Enter x is -2.0 and y is 3.0 Enter a, b, c, d, e, f: 1.0, 2.0, 2.0, 4.0, 4.0, 5.0 Enter The equation has no solutionarrow_forward
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