C++ Answers

Comparing Characters

by CodeChum Admin

Most, if not all things have numeric values. That goes for characters too. In order to find out which character has a higher value, we have to compare them with each other and display the value of the higher character.

Instructions:

1. In the code editor, you are provided with a main() function that asks the user for 2 characters, passes these characters to a function call of the getHigherValue() function, and then prints out the ASCII value of the higher character.
2. Your task is to implement the getHigherValue function which has the following details:
3. Return type - int
4. Name - getHigherValue
5. Parameters - 2 characters to be compared
6. Description - the ASCII value of the higher character.
7. Hint: Comparing characters in C++ is just like comparing integers.
8. DO NOT EDIT ANYTHING IN THE MAIN

Input

1. First character

2. Second character

Output

Enter·first·character:·a
Enter·second·character:·h
Result·value·=·104

Odd-Even-inator

by CodeChum Admin

My friends are geeking out with this new device I invented. It checks if a number is even or odd! 🤯

Do you want to try it out?

Instructions:

1. In the code editor, you are provided with a function that checks whether a number is even or odd.
2. Your task is to ask the user for the number of integer, n, they want to input and then the actual n number values. For each of the number, check whether it is even or odd using the function provided for you.
3. Make sure to print the correct, required message.

Input

1. Integer n

2. N integer values

Output

Enter·n:·5
Enter·value·#1:·3
3·is·odd
Enter·value·#2:·6
6·is·even
Enter·value·#3:·4
4·is·even
Enter·value·#4:·1
1·is·odd
Enter·value·#5:·3
3·is·odd

 Before and After

by CodeChum Admin

The only constant thing in the world is change. That’s why we need to call the toupper() function to change what we already have into a better version.

Instructions:

1. Your task is to ask the user for a character input.
2. Then, include the cctype built-in library and call the toupper() function. In case you do not know what this function is, this function has the following definition:
3. Return type - int
4. Name - toupper
5. Parameter - one integer which represents the ASCII of a character
6. Description - returns the ASCII of the uppercase equivalent of the character passed
7. Extra note - even though it's function definition in the C++ Programming Language Documentation is int toupper(int ch), you can just pass a normal char variable instead and this will just be automatically typecasted/converted to its integer equivalent.
8. Once you get the uppercase equivalent, print this out.

Input

1. Letter to be updated

Output

Enter·a·small·letter:·a
Uppercase·=·A

 Leap Year Detector

by CodeChum Admin

Let’s try to find out whether a year has 365 or 366 days. To do this, we need to create a leap year detector!

Conditions for a leap year:

1.) year must be divisible by 4 and not divisible by 100

2.) If year is divisible by 100, it must be divisible by 400 for it to be a leap year.

Instructions:

1. You are provided with the isLeapYear() function which is already declared and defined for you.
2. Your task is to ask the user for a year and then call the isLeapYear function to check whether the year is a leap year or not.

Input

1. Year to be checked

Output

If a certain year is a leap year, print "<INSERT_YEAR_HERE> is a leap year"

Otherwise, print "<INSERT_YEAR_HERE> is not a leap year"

Enter·year:·2020
2020·is·a·leap·year

Preserving the Gene Pool

by CodeChum Admin

In order to make sure that the future generations will grow into great beings, we must make sure that the gene pool consists of the best genes. In order to do that, we must compare genes from each other and find out which one is the best!

Instructions:

In the code editor, you are provided with a main() function that asks the user for 4 integer inputs and passes these to the getBest() function call.

Your task is to declare and define this getBest() function which has the following details:

Return type - int

Name - getBest

Parameters - 4 integers

Description - returns the highest integer passed

DO NOT EDIT ANYTHING IN THE MAIN

Input

1. First integer

2. Second integer

3. Third integer

4. Fourth integer

Output

Enter·a:·10

Enter·b:·3

Enter·c:·15

Enter·d:·14

Highest·integer·=·15

Pairing Up

by CodeChum Admin

You’re tasked with pairing up people with each other but you need to figure out how well both of them work together. In order to find out how effective each pair is, you need to create a program that adds both of their values and returns their sum.

Instructions:

In the code editor, you are provided with a main() function that asks the user for two integer inputs, passes these to a function called, getSum(), and then prints the returned value.

Your task is to declare and define the getSum() function which has the following details:

Return type - int

Name - getSum

Parameters - 2 integers

Description - adds the passed integers and returns their sum

DO NOT EDIT ANYTHING IN THE MAIN

Input

1. First integer

2. Second integer

Output

Enter·first·number:·24

Enter·second·number:·21

Sum·=·45

Problem:

Compute and display the output of the Area (A) of a rectangle, based on

inputted value for length (L) and the width (W).

Formula: A = L * W

Write a program to create a class students having name , id , age. Create a file "student.txt" and open in append mode. Write details of 3 students into a file and read the data from the file and display on screen. Also copy content to this file into another file. [10 marks]

Qn.Implement a super class Person. Make two classes, Student and Instructor, that inherit from

Person. A person has a name and a year of birth. A student has a course and an instructor has a

salary. Write the class definitions, the constructors, and the functions for all classes. Supply a test

program that test these classes and member functions.

Write a C++ program which performs the following two operations on doubly linked list

 Insertion of a new element at any mentioned position in the list.

 Deletion of an element which contains the given key

 Deletion of an element which found at the given position.