Algorithms in Data Structure

Algorithm:
             An algorithm is a method or process followed to solve a problem.
             Algorithms are created independent of understanding language,i.e an algorithm can be implemented in more than one programming language.

Properties of algorithm :-

• It must be correct.
• It is composed of a series of concrete steps.
• There can be no ambiguity asto which step will be performed next.
• Must be composed of finite number of steps.
• It must terminate.

Eg:
Algorithm to add two number,

1. Read a
2. Read b
3. c=a+b
4. display c 

                   This is implemented by a C , C++ , Java Language etc.
Program:-
A computer program can be seen as an instance or concrete representation of an algorithm , in some programming language.
Summary:-
 A problem is a function or a mapping of inputs to outputs
An algorithm is a recipe for a solving a problem whose steps are concrete and unambiguous.
The algorithm must be correct of finite length and must terminate all inputs.A program  is an instantiate of an algorithm in a computer programming language.