Algorithm

An algorithm is a process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer. 

Characteristics of an algorithm:-

1. Finiteness: Total number of steps used in algorithm should be finite.
2. Definiteness: Each step of algorithm must be clear and unambiguous.
3. Effectiveness: Every step must be basic and essential,
4. Input & Output: The algorithm must accept zero or more input and must produce atleast one output.

Example:-

1. Write an algorithm for adding two numbers.