EBK C HOW TO PROGRAM
8th Edition
ISBN: 9780133964639
Author: Deitel
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Textbook Question
Chapter 21, Problem 21.7E
(Inputting Decimal, Octal and Hexadecimal Values) Write a
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(Phone key pads) The international standard letter/number mapping found on the
telephone is shown below:
100
2 abc
3 def
4 ghi
5 ikl
6mno
7pgrs
8 tuv
9wxyz
Write a program that prompts the user to enter a letter and displays its correspond-
ing number.
Q. Write the output of the code given below
(Count positive and negative numbers and compute the average of numbers)
Write a program that reads an unspecified number of integers, determines how many positive and negative values have been read, and computes the total and average of the input values (not counting zeros). Your program ends with the input 0. Display the average as a floating-point number.
*********** USE PYTHON *********
Sample Run 1
Sample Output 1:
Enter an integer, the input ends if it is 0: 1
Enter an integer, the input ends if it is 0: 2
Enter an integer, the input ends if it is 0: -1
Enter an integer, the input ends if it is 0: 3
Enter an integer, the input ends if it is 0: 0
The number of positives is 3
The number of negatives is 1
The total is 5
The average is 1.25
Sample Run 2
Sample Output 2:
Enter an integer, the input ends if it is 0: 0
No numbers are entered except 0
Chapter 21 Solutions
EBK C HOW TO PROGRAM
Ch. 21 - (Write C++ Statements) Write a statement for each...Ch. 21 - (Inputting Decimal, Octal and Hexadecimal Values)...Ch. 21 - Prob. 21.8ECh. 21 - Prob. 21.9ECh. 21 - Prob. 21.10ECh. 21 - Prob. 21.11ECh. 21 - (Converting Fahrenheit to Celsius) Write a program...Ch. 21 - In some programming languages, strings are entered...Ch. 21 - Prob. 21.14ECh. 21 - Prob. 21.15E
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- draw the output of the codearrow_forwardUse print statements to find out the ASCII code for '1', 'A', 'B', 'a', and 'b'. Use print statements to find out the character for the decimal codes 40, 59, 79, 85, and 90. Use print statements to find out the character for the hexadecimal code 40, 5A, 71, 72, and 7A.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
- 61. State true or false: If I = read(Q) and J = read(Q) then the order of I and J does not matter. a. True b. False c. May be d. Can't sayarrow_forward(Financial: credit card number validation) Credit card numbers follow certain pat- terns. A credit card number must have between 13 and 16 digits. It must start with: 4 for Visa cards 5 for Master cards 37 for American Express cards 6 for Discover cards In 1954, Hans Luhn of IBM proposed an algorithm for validating credit card numbers. The algorithm is useful to determine whether a card number is entered correctly or whether a credit card is scanned correctly by a scanner. Credit card numbers are generated following this validity check, commonly known as the Luhn check or the Mod 10 check, which can be described as follows (for illustra- tion, consider the card number 4388576018402626): 1. Double every second digit from right to left. If doubling of a digit results in a two-digit number, add up the two digits to get a single-digit number. 4388576018402626 → 2 * 2 = 4 → 2 * 2 = 4 → 4 * 2 = 8 → 1 * 2 = 2 6 * 2 = 12 (1+ 2 = 3) → 5 * 2 = 10 (1+ 0 = 1) → 8 * 2 = 16 (1 + 6 = 7) → 4 * 2 = 8arrow_forwardFind the output of code given below.arrow_forward
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