C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN: 9781337102087
Author: D. S. Malik
Publisher: Cengage Learning
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Chapter 4, Problem 20PE
The cost of renting a room at a hotel is, say $100.00 per night. For special occasions, such as a wedding or conference, the hotel offers a special discount as follows: If the number of rooms booked at least 10, the discount is 10%; at least 20, the discount is 20%; and at least 30, the discount is 30%. Also if rooms are booked for at least three days, then there is an additional 5% discount. Write a
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Write a program that asks a student for his grade (out of 100) in 3 exams and then print out his final grade (out of 100), given that the weight of the first exam is 30%, the second 30%, and the third 40%.Example Input:Exam1: 70Exam2: 80Exam3: 90Example Output:Total Grade = 81Explanation: 0.3 * 70 + 0.3 * 80 + 0.4 * 90 = 81
Suppose you can buy chocolate bars from a vending machine for $1 each.Inside every chocolate bar is a coupon. You can redeem 7 coupons for 1chocolate bar from the machine.For example, if you have $20, you can initially buy 20 chocolate bars.This gives you 20 coupons. You can redeem 14 coupons for 2 additionalchocolate bars. These 2 chocolate bars have 2 more coupons, so you now have atotal of 8 coupons. This gives you enough to redeem for 1 final chocolate bar.Write a recursive function that would accept the amount of dollars andcoupons as its parameters and output the total number of chocolate bars thatcan be bought (including those redeemed via coupons).Write a test program in C++that would allow the user to enter amount of dollarsand then use the recursive function to compute the number of chocolate barsthe user can buy, and output the number to the screen.
Let's modify the program from this section so that the user can supply the interest rate. For very small interest rates, it may take a very long time for the balance to double. Assume the user can't wait for more than twenty years. Stop adding interest when the balance has doubled or twenty years have elapsed.
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finaldoubleTARGET=2*INITIAL_BALANCE;
doublebalance=INITIAL_BALANCE;
intyear=0;
Scannerin=newScanner(System.in);
System.out.print("Interest rate in percent: ");
doublerate=in.nextDouble();
// TODO: Count the years required for the investment to double
// but no more than 20 years
/* Your code goes here */
System.out.println("Year: "+year);
System.out.printf("Balance: %.2f%n", balance);
}
Chapter 4 Solutions
C++ Programming: From Problem Analysis to Program Design
Ch. 4 - Prob. 1TFCh. 4 - Prob. 6SACh. 4 - Prob. 12SACh. 4 - Write a program that prompts the user to input a...Ch. 4 - Write a program that prompts the user to output an...Ch. 4 - Prob. 4PECh. 4 - In a right triangle, the square of the length of...Ch. 4 - Write a program that mimics a calculator. The...Ch. 4 - Redo Exercise 8 to handle floating-point numbers....Ch. 4 - The number of lines that can be printed on a paper...
Ch. 4 - The short-term, 0-24 hours, parking fee, F, at an...Ch. 4 - Write a program to implement the algorithm that...Ch. 4 - Samantha and Vikas are looking to by a house in a...Ch. 4 - One way to determine how healthy a person is by...Ch. 4 - Ron bought several acres of farm to grow and sell...Ch. 4 - The cost of renting a room at a hotel is, say...Ch. 4 - Let l be a line in the x-y plane. If l is a...Ch. 4 - The first 11 prime integers are 2, 3, 5, 7, 11,...
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