Algorithms and Flowcharts

A typical programming task can be divided into two phases:
1-Problem solving phase
•produce an ordered sequence of steps that describe solution of problem
•this sequence of steps is called an algorithm
2-Implementation phase
•implement the program in some programming language
Steps for writing an algorithm for a program:
1. Keep in mind that algorithm is a step-by-step process.
2. Depending upon programming language, include syntax where necessary.
3. Begin.
4. Include variables and their usage.
5. If they are any loops, try to give sub number lists.
6. Try to give go back to step number if loop or condition fails.
7. Use jump statement to jump from one statement to another.
8. Define expressions.
9. Use break and stop to terminate the process.
Qualities of a good algorithm
1. Input and output should be defined precisely.
2. Each steps in algorithm should be clear and unambiguous.
3. Algorithm should be most effective among many different ways to solve a problem. 4. An algorithm shouldn t have computer code. Instead, the algorithm should be written in such a way that, it can be used in similar programming languages.