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COEN243-Assignment 2 Control Statements/User‐Defined Functions Solved
Q1. Change your previous temperature conversion program so that it will converts the temperatures from 1 to 50 Celsius to Fahrenheit and Kelvin. The output should look like this:
Celsius Fahrenheit Kelvin
1 33.8 274.15
2 35.6 275.15
3 37.4 276.15
4 38.2 277.15
This continues up to 50.
Q2. Write a program that takes an integer as an input and returns whether it is a prime number or not.
Q3. You are asked to write a C++ program which draws a house with a roof based on the following specifications.
Application name: Display a welcome banner
1) Welcome user: Ask the user for their name and using their name welcome them to your application.
2) Request house dimensions and validate input: Ask the user to enter the width and height of the house to be drawn (Note: Both height and width are integer). The width must be even and bigger than 2. If the user enters odd numbers or a number less than or equal to 2 for the width, you are required to prompt the user until they enter an even number. They have 3 tries for entering width. If after 3 tries they are still entering odd numbers terminate your program with an appropriate personalized message otherwise move on to step 3.
3) Draw the house
a. Draw the roof:
i. The roof consists of a set of stars on each row. Number of stars in the last row of the roof is equal to the width of the house. The first row starts with two stars and you increase the number of starts in the next row bye 2 and repeat this process until you reach to the width. For example, if the width is 6, the roof shape will be like this (2,4 and 6 stars):
**
****
******
Hint: The number of rows needed to print/draw the roof is half the widthof the house.
Note: There is no space between the stars in each row.
b. Draw the body of the house:
i. The body of the house has height+1 rows in all.
ii. Last row are drawn using the dash character (‐). There are width dashes.
iii. The walls are represented by height rows. Each of the rows are made up of 2 characters of | in the left and right sides and the rest are spaces.
c. Keep track of the number of houses you have drawn.
4) Again? Ask the user if they wish you to draw another house. If yes repeat steps
3. If no, move on to step 5.
5) End program: display this message: “Hope you like your house(s)”
Here are a few sample outputs: user input is highlighted in grey
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
House Drawing Program
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
What is your name? Anna
Well Anna, welcome to the house drawing program.
Do you want me to draw a simple house for you? (yes/no) yes
Enter height of the house you want me to draw: 3
Please enter an even number for the width of the house (must be even numbers and bigger than 2): 3
You enter 3 for the width. Not an even number!
Please enter an even number for the width of the house (must be even numbers and bigger than 2): 5
You enter 5 for the width. Not an even number!
Please enter an even number for the width of the house (must be even numbers and bigger than 1): 11
You enter 11 for the width. Not an even number!
it seems you are having troubles entering even numbers! Program ends now.
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
House Drawing Program
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
What is your name? Anna
Well Anna, welcome to my silly house drawing program.
Do you want me to draw a simple house for you? (yes/no) yes
Enter height of the house you want me to draw: 3
Please enter an even number for the width of the house (must be even numbers and bigger than 2): 6
**
****
******
| |
| |
| |
‐‐‐‐‐‐
Do you want me to draw a simple house for you? (yes/no) yes
Enter height of the house you want me to draw: 5
Please enter an even number for the width of the house (must be even numbers and bigger than 2): 10
**
****
******
********
**********
| |
| |
| |
| |
| |
‐‐‐‐‐‐‐‐‐‐
Do you want me to draw a simple house for you? (yes/no) no Hope you like your 2 houses!
Fall 2020
Q2. Write a C++ program that asks the user to enter two positive integer numbers as the lower bound and upper bound. Then it asks the user to enter a character:
‐If the entered character is ‘a’, function1 is called.
‐If the entered character is ‘b’, function2 is called and then the value of result variable is printed
‐If the entered character is ‘c’, function 3 is called and the returned value of the function 3 is printed.
‐If the user enters any other character, the program prints “invalid input” and terminates.
Function 1:
This function accepts the upper bound and lower bound numbers as the input arguments and prints out all the numbers in this range (Inclusive) which are multiples of both 7 and 2.
Function 2:
This function has no return value. It accepts 3 input arguments: the upper bound and lower bound numbers and a variable result (by reference) and calculates the difference between two entered numbers and save it in the result.
Function 3:
This function returns a variable of type double (sum) and accepts the upper bound and lower bound numbers (lower and upper variables) as input arguments. It calculates the results of following equation and returns the sum variable. (please note that the number of digits after the decimal point should be set to 3 for the sum value).
𝟏𝟏 𝟏𝟏 𝟏𝟏 𝟏𝟏 sum= + + + ⋯
𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍 𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍+𝟏𝟏 𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍𝒍+𝟐𝟐 𝒖𝒖𝒖𝒖𝒖𝒖𝒖𝒖𝒖𝒖
Here are several sample outputs:
Please enter two positive integer numbers: (Lower bound/Upper bound): 11 63
Please enter a character: a
List of numbers in this interval which are multiple of both 2 and 7: 14 28 42 56
4/5
Fall 2020
Please enter two positive integer numbers: (Lower bound/Upper bound): 11 63
Please enter a character: b
The difference between two numbers is 52
Please enter two positive integer numbers: (Lower bound/Upper bound): 20 25 Please enter a character: c the value of sum is: 0.268
Please enter two positive integer numbers: (Lower bound/Upper bound): 20 25
Please enter a character: z
Invalid input
