Problem Solving with C++ (9th Edition)
9th Edition
ISBN: 9780133591743
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2.5, Problem 35STE
The following if-else statement will compile and run without any problems. However, it is not laid out in a way that is consistent with the other if-else statements we have used in our
if (x < 0) {x = 7; cout << “x is now positive.”;}
else {x = –7; cout << “x is now negative.”;}
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Debugging:
There are errors in the following code snippet. Locate and fix all the errors with your own comments
to get full credit for the question. Assume the goal of the program is to perform a simulation to
estimate the probability of rolling three of a kind in a single roll of three six-sided dice.
File Edit Format Run Options Window Help
# Estimate the probability of rolling three of a kind
# in a singel roll of three six-sided dice.
def main ():
n input ("How many rolls would you like to simulate?")
hits = 0
for i in range (n):
if equalRolls (3):
hits += 1
print ("Estimated prob = ", float (hits) /n)
def equalRolls (count):
first = randrange (1,7)
for i in range (count) :
roll
if roll != first:
return False
return True
name
------
randrange (1,7)
1
if
main ()
Note: your output will not be exactly the same due to (pseudo)randomness
Test Case1:
How many rolls would you like to simulate? 100
Estimated prob = 0.01
_main____¹:
Test Case2:
How many rolls would you like to simulate?…
7) The ideal gas law allows the calculation of volume of a gas given the pressure(P), amount ofthe gas (n), and the temperature (T). The equation is:V = nRT / PSince we only have used integer arithmetic, all numbers will be integer values with nodecimal points. The constant R is 8.314 and will be specified as (8314/1000). This givesthe same result. Implement the idea gas law program where the user is prompted for andenters values for n, T, and P, and V is calculated and printed out. Be careful toimplement an accurate version of this program. Your program should include a properand useful prompt for input, and print the results in a meaningful manner
Exercise III: Catalan numbers
For n e N, denote by c, to be the number of ways to form a "mountain range" with n
upstrokes (U) and n downstrokes (D) that all stay above a horizontal line. For instance:
for n = 1, only UD is allowed, so c = 1;
• for n = 2, only UUDD and UDUD are allowed, so c2 = 2.
1. Check that c3 = 5 by writing down or drawing all possible options.
2. Consider the power series
+00
g(x) = 2
n=0
(by definition co =
1) called the generating function of the sequence (en). Justify
that cn < 4" for each n, and deduce that the radius of convergence of g is at least
1/4.
3. It can be show that for r E (-1/4, 1/4),
g(x) = 1+ xg(r)?
and therefore
1- VI
4.x
g(x) =
2.x
Use this formula and the known power series of V1+ x to write the first terms of
the power series expansion of g, in the form
g(x) = co + c1x + c2x2 + C3x + c4x* + ·..
Show how you obtain a few terms, but you do not need to show all computations
and you can use a calculator for fractions. Check that you recover co,…
Chapter 2 Solutions
Problem Solving with C++ (9th Edition)
Ch. 2.1 - Give the declaration for two variables called feet...Ch. 2.1 - Give the declaration for two variables called...Ch. 2.1 - Give a C++ statement that will change the value of...Ch. 2.1 - Give a C++ statement that will increase the value...Ch. 2.1 - Give a C++ statement that will change the value of...Ch. 2.1 - Prob. 6STECh. 2.1 - Prob. 7STECh. 2.2 - Give an output statement that will produce the...Ch. 2.2 - Give an input statement that will fill the...Ch. 2.2 - Prob. 10STE
Ch. 2.2 - Write a complete C++ program that writes the...Ch. 2.2 - Write a complete C++ program that reads in two...Ch. 2.2 - Prob. 13STECh. 2.2 - Write a short program that declares and...Ch. 2.3 - Convert each of the following mathematical...Ch. 2.3 - Prob. 16STECh. 2.3 - What is the output of the following program lines...Ch. 2.3 - Write a complete C++ program that reads two whole...Ch. 2.3 - Given the following fragment that purports to...Ch. 2.3 - What is the output of the following program lines...Ch. 2.4 - Write an if-else statement that outputs the word...Ch. 2.4 - Suppose savings and expenses are variables of type...Ch. 2.4 - Write an if-else statement that outputs the word...Ch. 2.4 - Write an if-else statement that outputs the word...Ch. 2.4 - Consider a quadratic expression, say x2 x 2...Ch. 2.4 - Consider the quadratic expression x2 4x + 3...Ch. 2.4 - What is the output of the following cout...Ch. 2.4 - What is the output produced by the following (when...Ch. 2.4 - What output would be produced in the previous...Ch. 2.4 - What is the output produced by the following (when...Ch. 2.4 - What is the output produced by the following (when...Ch. 2.4 - What is the most important difference between a...Ch. 2.4 - What is the output produced by the following (when...Ch. 2.4 - Write a complete C++ program that outputs the...Ch. 2.5 - The following if-else statement will compile and...Ch. 2.5 - Prob. 36STECh. 2.5 - Write a complete C++ program that asks the user...Ch. 2 - A metric ton is 35,273.92 ounces. Write a program...Ch. 2 - The Babylonian algorithm to compute the square...Ch. 2 - Many treadmills output the speed of the treadmill...Ch. 2 - Write a program that plays the game of Mad Lib....Ch. 2 - The following is a short program that computes the...Ch. 2 - A government research lab has concluded that an...Ch. 2 - Workers at a particular company have won a 7.6%...Ch. 2 - Modify your program from Programming Project 2 so...Ch. 2 - Negotiating a consumer loan is not always...Ch. 2 - Write a program that determines whether a meeting...Ch. 2 - Prob. 6PPCh. 2 - It is difficult to make a budget that spans...Ch. 2 - You have just purchased a stereo system that cost...Ch. 2 - Write a program that reads in ten whole numbers...Ch. 2 - Modify your program from Programming Project 9 so...Ch. 2 - Sound travels through air as a result of...Ch. 2 - Prob. 12PPCh. 2 - The HarrisBenedict equation estimates the number...Ch. 2 - Write a program that calculates the total grade...Ch. 2 - It is important to consider the effect of thermal...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Java programmers concentrate on creating, which contain fields and the set of methods that manipulate those fie...
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
True or False: Constructors are not inherited.
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
HTML Table of Names and Scores Write a class whose constructor takes a vector of Student objects, where each St...
Starting Out with C++: Early Objects (9th Edition)
Assume that the reference variable r refers to a serializable object. Write code that serializes the object to ...
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
What is a constructor?
Computer Science: An Overview (12th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Write an application that reads an integer and determines and prints whether it’s odd or even. [Hint: Use the remainder operator. An even number is a multiple of 2. Any multiple of 2 leaves a remainder of 0 when divided by 2.]arrow_forwardWhat is the final value of y? int x = 4; 6; int y if (x < 10) { if (y < 5) { y = y + 1; } } else { } y = 7; } else { y = y + 10;arrow_forwardplz solve it asap ????????: Write a program for a game that consists of two players. The rule of the game is that player 1 inputs a random number from 1-100. Player 2 will input 5 numbers. If the summation of those numbers is equal to the number OR less than or greater than the number by 3 (+3 or -3), then player 2 wins. Otherwise, player 1 wins. Test Case 1 Input Player 1, enter a number: 50 Player 2, enter a number: 10 Player 2, enter a number: 10 Player 2, enter a number: 20 Player 2, enter a number: 5 Player 2, enter a number: 7 Output Player 2 wins Explanation: The summation of 10,10,20,5 and 7 is 52 which is greater than 50 by 2. According to the rule, player 2 wins. Test Case 2 Input Player 1, enter a number: 50 Player 2, enter a number: 10 Player 2, enter a number: 10 Player 2, enter a number: 20 Player 2, enter a number: 5 Player 2, enter a number: 1 Output Player 1 wins Explanation: The summation of 10,10,20,5 and 1 is 46 which is less than 50 and also doesn’t…arrow_forward
- Problem Description Did you know that in lotteries, a 3-digit number with the same numbers in all digits like 777 will hit the jackpot in a casino? In the same manner, let's make a program that will test if a certain 3-digit number hits a jackpot or not by identifying if all the digits of a given number is the same as the second inputted number. If it is, print "Jackpot!"; else, print "Nah". Input A line containing two integers separated by a space. 777·7 Output A line containing a string. Jackpot! -USED JAVA PROGRAMMING LANGUAGEarrow_forwardThe body mass index, BMI, is a measure used to determine if a person is overweight or not. We can calculate BMI from the weight of the person (in pounds) and the height (in inches) of the person.The formula for calculating BMI is:BMI = (weightInPounds * 703) divided by (heightInInches squared)In this problem, you will develop a Java program as a BMI calculator, that reads the user’s weight in pounds and height in inches, then calculates and displays the user’s body mass index BMI. Also, display the following information {from the US Department of Health} so the user can evaluate his/her BMI:BMI values:Underweight: less than 18.5Normal: between 18.5 and 24.9Overweight: between 25 and 29.9Obese: 30 or greaterarrow_forwardAnalyze the following code. int x = 13B while (0 < x) && (x < 100) System.out .printin(x++); The numbers 2 to 100 are displayed. The code does not compile because the loop body is not in the braces. O The loop runs forever. The code does not compile because (0 < x) && (x < 100) is not enclosed in a pair of parentheses. The numbers 1 to 99 are displayed.arrow_forward
- QUESTION 5 This is a MULTIPLE ANSWER question, which means you are able to select one or more answers as being correct. Note that this does not necessarily mean that there are multiple correct answers. In any case, select all the answers you believe are correct. (NB: There are no part marks awarded for multiple answer questions.) Consider the following Python code, where the variables level and threshold have integer values: alarm = 3 if level = threshold: if level < 100: alarm = 1 alarm = 2 What initial values for variables level and threshold guarantee that variable alarm ends up with the value of 2 after the code has executed? When level is 200 and threshold is 99 When level is 4 and threshold is 5 ☐ When level is 200 and threshold is 100 When level is 400 and threshold is 300 When level is 5 and threshold is 4 When level is 3 and threshold is 4 When level is 1 and threshold is 2 O When level is 10 and threshold is 10arrow_forwardSummary When you borrow money to buy a house, a car, or for some other purposes, then you typically repay it by making periodic payments. Suppose that the loan amount is L, r is the interest rate per year, m is the number of payments in a year, and the loan is for t years. Suppose that i = (r / m) and r is in decimal. Then the periodic payment is (first image which R=....): You can also calculate the unpaid loan balance after making certain payments. For example, the unpaid balance after making k payments is (second image which L'=....) : where R is the periodic payment. (Note that if the payments are monthly, then m = 12.) Instructions Write a program that prompts the user to input the values of L, r, m, t, and k. The program then outputs the appropriate values. Your program must contain at least two functions, with appropriate parameters, to calculate the periodic payments and the unpaid balance after certain payments. Make the program menu driven and use a loop so that the…arrow_forward3. What does this code print? int i = 0; while (i < 12) { int j; for (j = 0; j < i; j++) { if ((i+j)%3 Ø) == j += 2; } i += j+1; } System.out.println("i = "+i);arrow_forward
- Fix any errors that you find. Use in-line comments to explain how and why you fixed the bugs. Test your program. If you found and fixed all the errors, your code should function as specified: The code should allow users to enter basic, one operator arithmetic expressions using integers or doubles. Then, it should calculate the result of the expression and output the results. For example, if the user inputs “2 + 2,” the calculator should output “2 + 2 = 4.” The operations the program should perform are addition (+), subtraction (-), multiplication (*), and division (/). The user should be asked whether they wish to continue after evaluating each expression. If the user types “Y” or “y,” the program should ask for a new arithmetic expression. If the user types “N” or “n,” the program should terminate with the message: “Program Finished.”arrow_forwardThe Game of Nim: The game of Nim starts with a random number of stones between 15 and 30. Two players alternate turns and on each turn may take either 1, 2, or 3 stones from the pile. The player forced to take the last stone loses. The computer player will make random choices during their turn. Your program must check to make sure that neither the computer nor the human player attempts to take 3 if there are only 1 or 2 stones left. The computer should only take 1 or 2 stones when 3 are left, and only 1 stone when 2 stones are left. Make sure you are using functions, importing random, and making it at around grade 10 coding levels, haha!arrow_forwardThe objective of this program is to demonstrate your proficiency with the if-elif-else construct. Your program will consist of a simple guessing game. Using the random module, generate an integer between 1 and 10. This will be the secret. You will then ask the user for a guess between 1 and 10. . If the guess is greater than the secret respond, "Too high". • If the guess is less than the secret respond, "Too low". . If both numbers are equal respond, "Success!". Remember to test your program to ensure that all of the comparisons work. Please note that a loop is not required. The images below shows the program being run multiple times to display the three different possible output messages. Your display should look like this. User input is highlighted in green. Please enter your guess: 10 Too high! Please enter your guess: 5 Too low! Please enter your guess: 1 Success!arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Python Tutorial #10; Math Functions in Python; Author: Art of Engineer;https://www.youtube.com/watch?v=OviXsGf4qmY;License: Standard YouTube License, CC-BY