Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
9th Edition
ISBN: 9780134443829
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 45RQE
T F All lines in a block should be indented one level.
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule02:29
Students have asked these similar questions
3."""Code _Write a function validSolution/ValidateSolution/valid_solution()that accepts a 2D array representing a Sudoku board, and returns trueif it is a valid solution, or false otherwise. The cells of the sudokuboard may also contain 0's, which will represent empty cells.Boards containing one or more zeroes are considered to be invalid solutions.The board is always 9 cells by 9 cells, and every cell only contains integersfrom 0 to 9.
(More info at: http://en.wikipedia.org/wiki/Sudoku)"""
# Using dict/hash-tablefrom collections import defaultdict
def valid_solution_hashtable(board): for i in range(len(board)): dict_row = defaultdict(int) dict_col = defaultdict(int) for j in range(len(board[0])): value_row = board[i][j] value_col = board[j][i] if not value_row or value_col == 0: return False if value_row in dict_row: return False else: dict_row[value_row] += 1.
Dec2Hex function :
def decimal_to_hex(number): hex_map = {0: '0', 1: '1', 2: '2', 3: '3', 4: '4', 5: '5', 6: '6', 7: '7', 8: '8', 9: '9', 10: 'A', 11: 'B', 12: 'C', 13: 'D', 14: 'E', 15: 'F'} hex_digits = [] while number > 0: hex_digits.append(hex_map[number % 16]) number //= 16 # Reverse the order of the hex digits and join them to form the final hex string hex_string = ''.join(reversed(hex_digits)) return f'0x{hex_string}' if hex_string else '0x0'
Perform a Profile of your Dec2Hex function.
Write a function that takes a timedate object as a parameter andcalculates the number of years from NOW to the time in the timedateobject.
Add unit-testing code to your Dec2Hex exercise, and then perform aUnit test of the updated Dec2Hex code.
USE C++
(Display matrix of 0s and 1s) Write a function that displays an n-by-n matrix using the following header:
void printMatrix(int n)
Each element is 0 or 1, which is generated randomly. Write a test program that prompts the user to enter n and displays an n-by-n matrix. Here is a sample run:
Chapter 4 Solutions
Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
Ch. 4.1 - Prob. 4.1CPCh. 4.1 - Indicate whether the following statements about...Ch. 4.1 - Prob. 4.3CPCh. 4.1 - Prob. 4.4CPCh. 4.2 - Write an if statement that performs the following...Ch. 4.2 - Write an if statement that performs the following...Ch. 4.2 - Write an if statement that multiplies payRate by...Ch. 4.2 - True or False: Both of the following i f...Ch. 4.2 - True or false: Both of the following if statements...Ch. 4.3 - Write an if statement that performs the following...
Ch. 4.3 - The following code segment is syntactically...Ch. 4.4 - True or false: The following if/else statements...Ch. 4.4 - Write an if/else statement that assigns 1 to x if...Ch. 4.4 - Write an if/else statement that assigns 0.10 to...Ch. 4.5 - If you executed the following code, what would it...Ch. 4.6 - What will the following code display? int funny =...Ch. 4.6 - The following code is used in a bookstore program...Ch. 4.9 - Prob. 4.18CPCh. 4.9 - Assume the variables a = 2, b = 4, and c = 6....Ch. 4.9 - Write an if statement that prints the message The...Ch. 4.9 - Write an if statement that prints the message The...Ch. 4.12 - Prob. 4.22CPCh. 4.12 - Indicate whether each of the following relational...Ch. 4.13 - Rewrite the following if/else statements as...Ch. 4.13 - The following statements use conditional...Ch. 4.13 - Prob. 4.26CPCh. 4.14 - Explain why you cannot convert the following if...Ch. 4.14 - What is wrong with the following switch statement?...Ch. 4.14 - What will the following program display? #include...Ch. 4.14 - Complete the following program skeleton by writing...Ch. 4.14 - Rewrite the following program. Use a switch...Ch. 4 - Describe the difference between the if /else if...Ch. 4 - In an if/else if statement, what is the purpose of...Ch. 4 - What is a flag and how does it work?Ch. 4 - Can an if statement test expressions other than...Ch. 4 - Briefly describe how the operator works.Ch. 4 - Briefly describe how the | | operator works.Ch. 4 - Why are the relational operators called...Ch. 4 - Why do most programmers indent the conditionally...Ch. 4 - An expression using the greater-than, less-than,...Ch. 4 - A relational expression is either ______ or...Ch. 4 - Prob. 11RQECh. 4 - The if statement regards an expression with the...Ch. 4 - The if statement regards an expression with a...Ch. 4 - For an if statement to conditionally execute a...Ch. 4 - In an if/else statement, the if part executes its...Ch. 4 - The trailing else in an if/else if statement has a...Ch. 4 - The if/else if statement is actually a form of the...Ch. 4 - If the subexpression on the left of the _________...Ch. 4 - If the subexpression on the left of the __________...Ch. 4 - The ________ logical operator has higher...Ch. 4 - The logical operators have _________...Ch. 4 - The _________ logical operator works best when...Ch. 4 - The __________ logical operator works best when...Ch. 4 - A variable with _________ scope is only visible...Ch. 4 - Prob. 25RQECh. 4 - An expression using the conditional operator is...Ch. 4 - The expression that is tested by a switch...Ch. 4 - Prob. 28RQECh. 4 - A program will fall through a case section if it...Ch. 4 - What value will be stored in the variable t after...Ch. 4 - Write an if statement that assigns 100 to x when y...Ch. 4 - Write an if/else statement that assigns 0 to x...Ch. 4 - Using the following chart, write an if/else if...Ch. 4 - Write an if statement that sets the variable hours...Ch. 4 - Write nested if statements that perform the...Ch. 4 - Write an if statement that prints the message The...Ch. 4 - Write an if statement that prints the message The...Ch. 4 - Write an if statement that prints the message The...Ch. 4 - Assume str1 and str2 are string objects that have...Ch. 4 - Convert the following if/else if statement into a...Ch. 4 - Match the conditional expression with the if /else...Ch. 4 - T F The = operator and the == operator perform the...Ch. 4 - Prob. 43RQECh. 4 - T F A conditionally executed statement should be...Ch. 4 - T F All lines in a block should be indented one...Ch. 4 - T F Its safe to assume that all uninitialized...Ch. 4 - T F When an if statement is nested in the if part...Ch. 4 - T F When an if statement is nested in the el se...Ch. 4 - T F The scope of a variable is limited to the...Ch. 4 - T F You can use the relational operators to...Ch. 4 - T F x ! = y is the same as (x y || x y)Ch. 4 - T F y x is the same as x = yCh. 4 - T F x = y is the same as (x y x = y)Ch. 4 - T F x == 5 || y 3Ch. 4 - T F 7 = x z 4Ch. 4 - T F 2 != y z != 4Ch. 4 - T F x = 0 || x = yCh. 4 - Each of the following programs has errors. Find as...Ch. 4 - // This program divides a user-supplied number by...Ch. 4 - // This program uses an if/else if statement to...Ch. 4 - // This program uses a switch-case statement to...Ch. 4 - The following statement should determine if x is...Ch. 4 - The following statement should determine if count...Ch. 4 - The following statement should determine if count...Ch. 4 - The following statement should assign 0 to z if a...Ch. 4 - Minimum/Maximum Write a program that asks the user...Ch. 4 - Roman Numeral Converter Write a program that asks...Ch. 4 - Magic Dates The date June 10, 1960 is special...Ch. 4 - Areas of Rectangles The area of a rectangle is the...Ch. 4 - Body Mass Index Write a program that calculates...Ch. 4 - Mass and Weight Scientists measure an objects mass...Ch. 4 - Time Calculator Write a program that asks the user...Ch. 4 - Color Mixer The colors red, blue, and yellow are...Ch. 4 - Change for a Dollar Game Create a change-counting...Ch. 4 - Days in a Month Write a program that asks the user...Ch. 4 - Math Tutor This is a modification of Programming...Ch. 4 - Software Sales A software company sells a package...Ch. 4 - Book Club Points Serendipity Booksellers has a...Ch. 4 - Bank Charges A bank charges 10 per month plus the...Ch. 4 - Shipping Charges The Fast Freight Shipping Company...Ch. 4 - Running the Race Write a program that asks for the...Ch. 4 - Personal Best Write a program that asks for the...Ch. 4 - Fat Gram Calculator Write a program that asks for...Ch. 4 - Spectral Analysis If a scientist knows the...Ch. 4 - Prob. 20PCCh. 4 - The Speed of Sound in Gases When sound travels...Ch. 4 - Freezing and Boiling Points The following table...Ch. 4 - Prob. 23PCCh. 4 - Long-Distance Calls A long-distance carrier...Ch. 4 - Mobile Service Provider A mobile phone service...Ch. 4 - Mobile Service Provider, Part 2 Modify the Program...Ch. 4 - Wi-Fi Diagnostic Tree Figure 4-11 shows a...Ch. 4 - Restaurant Selector You have a group of friends...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Consider the adage Never ask a question for which you do not want the answer. a. Is following that adage ethica...
Experiencing MIS
Draw state diagrams of the control software for: an automatic washing machine that has different programs for d...
Software Engineering (10th Edition)
What does the following code print? System.out.print(""); System.out.print(""); System.out.print(""); System.ou...
Java How To Program (Early Objects)
Convert the following for loop to a while loop: for (int x = 50; x 0; x) { Cout x " seconds to go.\n"; }
Starting Out with C++: Early Objects
Write a function e that takes as its arguments two t structures and returns a t structure that represents the e...
Programming in C
Explain the use of the SQL transaction control language (TCL) statements BEGIN TRANSACTION, COMMIT TRANSACTION,...
Database Concepts (7th 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
- 1. Examine the following code segment. What will be printed?If there are any errors indicate the nature of each error.int a[7] = { 31, 12, 32, 14, 25, 16, 27 };int *ptr ;ptr = & a[ 2 ] ;for( i = 1; i <= 5; i = i + 2)cout << *( ptr + i ) ;cout << a[0] << *ptr << *ptr - 2 << *(ptr - 1)) << endl;arrow_forwardC function please Write a C function named(Count_elements), that accepts a one-dimensional array and its size, returns how many elements of the array divisible by 3 and by 2. e.g. the array is [1,7,13,22,15,6,4,3,2,9,21] the output is:2arrow_forwardCreate an R code that with two (2) vectors. One is numeric and other one is character. Assign five (5) values to each vectors. Use equal operator for numeric and rightward operator for character. Display the items from the 2 vectors created. Display also the data type of each vectors using class() function.arrow_forward
- C++ please 3.9.3: Populating a vector with a for loop. Write a for loop to populate vector userGuesses with NUM_GUESSES integers. Read integers using cin. Ex: If NUM_GUESSES is 3 and user enters 9 5 2, then userGuesses is {9, 5, 2}.arrow_forwardCode to calling a block multiple times Write method can invoke a block as many times as it wants.arrow_forward10. Examine the following code segment. What will be printed? If there are any errors indicate the nature of the error. int a[9] = { 1, 12, 3, 14, 25, 16, 7, 8, 9 }; int *ptr ; ptr = & a[ 2 ] ; for( i = 1; i <= 5; i = i + 2) cout << a[i] << *( ptr + i ); cout << ” ” << a[0] << ” ” << *ptr << ” ” << *ptr - 1 << ” ” << *(ptr - 2));arrow_forward
- Code uses C++ language If the user chooses to generate a Pentagono This is a combination of a triangular shape and a square shape -- a symmetrictriangle sits on top of a rectangle.o The triangular shape must be symmetric about the vertical axis. There must beexactly one character in the first line, and the number of characters increases by2 in every successive lineo The rectangle shape must have LENGTH lines of height and all lines are 13characters wide.o Make sure to add delay to view a progressively growing pentagon, otherwise youwill just see the final shape. Code for triangle: for (int i = 1; i <= length; i++) { sleep (1); for (int j = length - i; j > 0; j--) cout << " "; for (int b = 1; b <= i; b++) cout << char(rdm) << " "; cout << endl; } Code for square: for (int row = 1; row <=…arrow_forwardMust be C++ Assume v is a vector that has been declared and initialized. Write an expression whose value is the number of values that have been stored in v .arrow_forwardComplete the code below to display all values inside the customers_per_hour std::vector. Display each value in a separate line (using std::endl or "\n"). #include #include int main() { std::vector customers_per_hour {2, 4, 1, 4, 3, 2, 1, 1}; for (int customers : customers_per_hour) { std::cout << customers << "\n"; } return 0; } #include #include int main() { std::vector customers_per_hour {2, 4, 1, 4, 3, 2, 1, 1}; for (int customers : customers_per_hour) { std::cout << customers << "\n"; } return 0; } #include #include int main() { std::vector customers_per_hour {2, 4, 1, 4, 3, 2, 1, 1}; for (int customers : customers_per_hour) { std::cout << customers << "\n"; } return 0; }arrow_forward
- 6. Complete code Do not use ready String class functions like reverse() or arrays and array functions!!! Input FormatA line contains an Integer N. Constraints 1 <= N <= 999999 Output FormatA text containing either "This number is a palindrome" or "This number is not a palindrome".arrow_forwardDon't need code.arrow_forwardWrite a statement that subtracts the number 10 from the first element in the intOrders array.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrC++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
Control Structure in Data Structure - Data Structures - Computer Science Class 12; Author: Ekeeda;https://www.youtube.com/watch?v=9FTw2pXLhv4;License: Standard YouTube License, CC-BY