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  Arrays....
Why arrays are used?
 
 
What is the difference between a variable and an array?
 
 
 
Classes....
What do you mean by constructor?
 
What do you mean by separation of Interface from the implementation?
 
What do you mean by destructor?
 
 
Functions....
Where can the declaration of a function be placed?
 
 
What is the difference between a function and its definition?
 
 
What are the advantages of using functions to modularize a program?
 
 
 
Input / Output....
Write a program that finds the roots of the quadratic equation.
 
Why we include iostream.h file in all of the programs of c++?
 
 
 
Introduction....
Differentiate between Low Level Languages and High Level Languages.
 
What is machine language?
 
Differentiate between compiler and interpreter.
 
 
Loops....
Why loops are so important in all programming languages?
 
Write a program that reads two integers and prints their Greatest Common Divisor (GCD).
 
Write a program to calculate the factorial of n. The value of n should be accepted through keyboard
 
 
Operators....
Calculate the length of the hypotenuse of a right triangle whose base and height are given.
 
Explain with examples the logical operators used in C/C++.
 
Write a program to find arithmetic mean and variance of 5 values to be given by the user.
 
 
Selection Structures....
Differentiate between the if-else structure and switch structure
 
Write a program that reads three nonzero integers and determines and prints if they could be sides of a right triangle.
 
Write a program which checks whether the roots of the quadratic equation are equal, real or imaginary.
 
 
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.