Functions programming exercises and solutions in C++

By: Prof. Dr. Fazal Rehman | Last updated: September 4, 2024

Pass by value and pass by reference

1. Pass by value and pass by reference – Program to add two numbers

1. Program to calculate the bill in c++
2. CPP program to check that the entered character is small, capital, or a special character
3. Program in C++ to check that whether a number is even or odd with flowchart
4. 0 is a positive or negative number
5. Program to find the positive and negative number
6. Write a function to compute the square-root of a given number. If the given number is negative, your function should give an error message.
7. Enter Range of numbers and replaced them in C++
8. Program to find greater number among three numbers in c++
9. Armstrong Number Program in C++
10. ASCII code Program in C++
11. Find the Maximum value program in C++
12. C++ Program to find the maximum between three numbers by using the user define functions.
13. C++ Program to take a value from the user as input the basic salary of an employee and calculate its Gross salary according to the following: Basic Salary <= 10000: HRA = 20%, DA = 80%………………………………..Basic Salary <= 20000 : HRA = 25%, DA = 90%………………………………Basic Salary > 20000 : HRA = 30%, DA = 95%.
14. C++ Program to find the maximum between two numbers by using the user define functions. Maximum Number Program
15. Using the user define functions C++ Program to take a value from the user as input electricity unit charges and calculate total electricity bill according to the given condition: For the first 50 units Rs. 0.50/unit………….For the next 100 units Rs. 0.75/unit…..For the next 100 units Rs. 1.20/unit ……………For unit above 250 Rs. 1.50/unit………An additional surcharge of 20% is added to the bill…….Using user define functions.
16. Write a program that determines a student’s grade. The program will read three types of scores (quiz, mid-term, and final scores) and determine the grade based on the following rules:if the average score =90% =>grade=A…………………..-if the average score >= 70% and <90% => grade=B……………………-if the average score>=50% and <70% =>grade=C……………………..-if the average score<50% =>grade=F.
17. C++ Program to check whether a number is divisible by 5 and 11 or not by using user define functions. The number is divisible by 11 or 5 or not
18. C++ Program to count the total number of notes in a given amount. Using user define functions
19. C++ Program to take a value from the user as input the angles of a triangle and check whether the triangle is valid or not by using the user define functions. Triangle program
20. C++ Program to take a value from the user as input all sides of a triangle and check whether the triangle is valid or not. Using user define functions.
21. C++ Program to check whether the triangle is an equilateral, isosceles or scalene triangle. Using the user define functions.
22. C++ Program to find all the roots of a quadratic equation. Using user define functions.
23. C++ Program to calculate profit or loss. Using user define functions.
24. C++ Program to check whether a year is a leap year or not by using an user define functions. Leap year program
25. C++ Program to check whether a character is an alphabet or not. Using user define functions.
26. C++ Program to take a value from the user as input any alphabet and check whether it is vowel or consonant. Using user define functions.
27. Using user define functions C++ Program to take a value from the to take a value from the user as input marks of five subjects Physics, Chemistry, Biology, Mathematics, and Computer. Calculate percentage and grade according to the following: Percentage >= 90% : Grade A, Percentage >= 80% : Grade B, Percentage >= 70% : Grade C, Percentage >= 60% : Grade D, Percentage >= 40% : Grade E, Percentage < 40% : Grade F, Write this program with the help of  user define functions. Grade and Percentage Program
28. C++ Program to take a value from the user as input any character and check whether it is the alphabet, digit or special character. Using user define functions.
29. C++ Program to check whether a character is an uppercase or lowercase alphabet. Using user define functions.
30. C++ Program to take value from the user as an input weekday number and print weekday by using user define functions. Weekday program
31. C++ Program to take a value from the user as input the month number and print number of days in that month. Using user define functions.
32. C++ Program to check whether a number is a prime or composite number.
33. Program to take the hours and minutes as input by the user and the show that whether it is AM or PM using user define functions
34. Write a program to swap the values of two number if values of both variables are not the same using user define functions
35. Program to update even number into its upper nearest odd number. C++ Program to update even to odd
36. Write a C program to calculate profit or loss by using user define functions. Profit Loss Program
37. Write a C++ Program to convert centimeter into meter and kilometer using the user define functions. Program of centimeter into meter and kilometer
38. Write a C++ program to input all sides of a triangle and check whether the triangle is valid or not. Using the switch statement. Triangle Program
39. C PROGRAM TO INPUT THE BASIC SALARY OF AN EMPLOYEE AND CALCULATE ITS GROSS SALARY BY USING THE IF-ELSE STATEMENT – Salary Program
40. Write a C++ program in which a user enters a number, and the program will find the Even and odd number. Your program should only accept integers of length 2 or higher and should ask the user to re-enter a value if the value containing total numbers of integers less than 2. The program with goto statement. Even odd program with goto statement.
41. C++ program to calculate area of the circle if the radius is greater than 0 using goto statement.
42. Write a C++ program to find the roots of a quadratic equation ax2 + bx + c = 0