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  Arrays....
What is the difference between a variable and an array?
 
 
Why arrays are used?
 
 
 
Classes....
Differentiate between a structure and a class.
 
What do you mean by separation of Interface from the implementation?
 
What do you mean by constructor?
 
 
Functions....
What is the advantage of compiling a function separately?
 
 
Why is a parameter that is passed by value referred to as "read-only"?
 
What are the differences between passing a parameter by reference and by constant reference?
 
 
 
Input / Output....
Why we include iostream.h file in all of the programs of c++?
 
 
Write a program that finds the roots of the quadratic equation.
 
 
Introduction....
Describe data types available in C++.
 
How and why comments be used in a C/C++ program?
 
What is a variable? Also write the rules to give name to a variable.
 
 
Loops....
Write a program that will generate a random number in the range 1 to 999. The user is to guess the number. Your program provides maximum 10 attempts to the user. The user inputs his/her guess. The program helps the user in such a way that it tells the user if the guess is larger or smaller than the number. In case of success the program displays - You have succeeded - along with number of attempts made, other wise -Sorry you could not guess-.
 
Write a program to check the integer value entered by the user, is a prime number or not?
 
 
Write a program that reads two integers and prints their Least Common Multiple (LCM).
 
 
Operators....
Write a program that inputs a five-digit number, find the number in reverse order. Also find the difference between the new number and the original number.
 
Write a program to find arithmetic mean and variance of 5 values to be given by the user.
 
Calculate the length of the hypotenuse of a right triangle whose base and height are given.
 
 
Selection Structures....
What are decision statements? Explain?
 
Explain switch statement with an example.
 
Write a program to accept an integer and print whether the given integer is Odd or Even.
 
 
Structures....
Describe the syntax for defining the composition of a structure.
 
What is a structure?
 
 
 
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Here you can find questions about different topics in c language and c++ language. Similarly programming problems with their solutions by different people of the field. So that you can choose best answer of a theory question or a best solution of a programming problem.

Life before Computers:

Window was a square or rectangular hole in a room.

Application was something written in paper.

Mouse was an animal.

Keyboard was a Piano.

File was an important office material.

Hard Drive was an uncomfortable road trip.

Cut was done with Knife and Paste was done with Glue.

Web was spider's home.

Virus was flue.

Apple and Blackberry were just fruits.