Question 01

Write a C program that takes an integer input from the user and classifies it as positive, negative, or zero.

Question 02

Write a C program that takes an integer and checks if it is even or odd.

Question 03

Write a C program that takes three integer inputs and determines the largest of the three numbers.

Question 04

Write a C program to solve a quadratic equation of the form ax² + bx + c = 0. The program should calculate and display the real roots of the equation if they exist. When you ask the user for input, you only need to ask for the coefficients a, b, and c. For example, the equation x² − 3x + 1 = 0 should be entered as 2 -3 1.

Question 05

Write a C program to calculate the weekly salary of an employee based on the hours worked. The program should ask the user for the number of hours worked and the hourly pay rate. If the number of hours worked is greater than 40, the employee should receive overtime pay for the extra hours at a rate of 1.5 times the regular hourly rate.

Question 06

Write a C program that checks whether a three-digit number is an Armstrong number. An Armstrong number is a number that is equal to the sum of its own digits raised to the power of the number of digits. A three-digit number is Armstrong if it is equal to the sum of its own digits each raised to the power of three. For example, 153 is an Armstrong number because 1³ + 5³ + 3³ = 153.

Question 07

How many three-digit Armstrong numbers are there? Write a program that gives you this answer.