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  Arrays....
What is the difference between a variable and an array?
 
 
Why arrays are used?
 
 
 
Classes....
What do you mean by destructor?
 
Differentiate between a structure and a class.
 
What do you mean by constructor?
 
 
Functions....
What is wrong with the following declaration?
int f(int a, int b=0, int c);
 
 
What is the difference between a function and its definition?
 
 
What is the advantage of compiling a function separately?
 
 
 
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 compiler and interpreter.
 
How and why comments be used in a C/C++ program?
 
Differentiate between Low Level Languages and High Level Languages.
 
 
Loops....
Why the use of the goto statement generally discouraged?
 
Why loops are so important in all programming languages?
 
Write a program that reads two integers and prints their Least Common Multiple (LCM).
 
 
Operators....
Explain with examples the logical operators used in C/C++.
 
Write a program to accept temperature in Centigrade and convert into Fahrenheit.
 
Write a program that takes radius of a circle from the user and calculates the diameter, circumference and area of the circle and display the result.
 
 
Selection Structures....
Explain switch statement with an example.
 
Write a program to calculate the electricity bill on the following rates. Cost is USD 0.213 per unit for first 100 units, US$ 0.423 per unit for next 200 units and US$ 0.675 for remaining units. General Sales Tax is added to the bill at the rate of 15% of the total cost of electricity.
 
Write a program that reads three nonzero integers and determines and prints if they could be sides of a right triangle.
 
 
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.