An algorithm is a set of step by step instructions for solving a problem to achieve a result.
Important charecteristics of an algorithm
- An algorithm is well orderd
- An algorithm has unambiguous operations
- An algorithm has effectively computable operations
- An algorithm produces a result
- An algorithm halts in a finite amount of time
Representation of Algorithms
Flow charts
Example 01
Example 02
Write an algorithm for adding all even numbers between 2 and 1000 to sum Even numbers
- Initialize Sum-of-even numbers
- Initialize an index
- Repeat Until index is 1000
- Increment the index by 2;
- Add index to sum-of-even-numbers
In Pseudo code
Sum-of -Even-numbers=0
Number=0
Repeat
Number=Number+2
Sum-of-Even-numbers=Sum-of-Even-numbers +Number
Util Number==10
algorithm 