Programming & Computer Science Answers

10. Adding certain numbers to their reversals sometimes produces a palindromic number. For

instance, 241 + 142 = 383. Sometimes, we have to repeat the process. For instance, 84 + 48 =

132 and 132 + 231 = 363. Write a program that finds both two-digit numbers for which this

process must be repeated more than 20 times to obtain a palindromic number.

Secondhand Rose Resale Shop is having a seven-day sale during which the price of any unsold item drops 10 percent each day. For example, an item that costs $10.00 on the first day costs 10 percent less, or 9.00, on the second day. On the third day, the same item is 10 percent less than $9.00, or $8.10. Design an application that allows a user to input a price until an appropriate sentinel value is entered. Output is the price of each item on each day, one through seven.

Give an example of a class and an example of an object. Describe what a class is, what an object is, and how they are related. Use your examples to illustrate the descriptions.

You are required to create a software for a restaurant. The restaurant charges $ 7 for people over the age of 17 and for children under or equal the age of 17 are charged $ 3.5. Write a C++ program that inputs how many people are eating at the restaurant and asks each person’s age and calculates the total amount to be charged using while and if else statements.

What is the meaning of every symbol used when programming? In more simplified way.

Explain the relationships between Procedural, Object oriented and Event-driven paradigms.

True or false question

A graphical user interface controls how to feed a computer with a data ( input) and how processed information is displayed on the monitor (output).

Do Exercise 6.4 from your textbook using recursion and the is_divisible function from Section 6.4. Your program may assume that both arguments to is_power are positive integers. Note that the only positive integer that is a power of "1" is "1" itself.

After writing your is_power function, include the following test cases in your script to exercise the function and print the results:

print("is_power(10, 2) returns: ", is_power(10, 2))

print("is_power(27, 3) returns: ", is_power(27, 3))

print("is_power(1, 1) returns: ", is_power(1, 1))

print("is_power(10, 1) returns: ", is_power(10, 1))

print("is_power(3, 3) returns: ", is_power(3, 3))

You should submit a script file and a plain text output file (.txt) that contains the test output. Multiple file uploads are permitted. Don’t forget to include descriptive comments in your Python code.

Note answer in C language only

Create a struct called Invoice that a hardware store might use to represent an invoice

for an item sold at the store. An Invoice should include four data members—a part

number (type string), a part description (type string), a quantity of the item being

purchased (type int) and a price per item (type float). Your program should initialize the

four data members. In addition, it should calculate the invoice amount (i.e., multiplies the

quantity by the price per item), If the quantity is not positive, it should be set to 0. If the

price per item is not positive, it should be set to 0. Write a test program that demonstrates

struct Invoice’s capabilities.

Note: Perform this work using

1. pointer to 2d arrays and design function for calculating the results by passing array to function by value and by

reference.

From a rectangular sheet of paper tartan (N rows, M columns) have removed some of the cells. How many pieces fall apart the rest of the sheet? Two cells do not break if they have a common side.