Flowchart in C Language
Flowchart is a diagrammatic representation of sequence of logical steps of a program. Flowcharts use simple geometric shapes to depict processes and arrows to show relationships and process/data flow.
Flowchart Symbols
Here is a chart for some of the common symbols used in drawing flowcharts.
| Symbol | Symbol Name | Purpose |
|---|---|---|
| Start/Stop | Used at the beginning and end of the algorithm to show start and end of the program. | |
| Process | Indicates processes like mathematical operations. | |
| Input/ Output | Used for denoting program inputs and outputs. | |
| Decision | Stands for decision statements in a program, where answer is usually Yes or No. | |
| Arrow | Shows relationships between different shapes. | |
| On-page Connector | Connects two or more parts of a flowchart, which are on the same page. | |
| Off-page Connector | Connects two parts of a flowchart which are spread over different pages. |
Guidelines for Developing Flowcharts
These are some points to keep in mind while developing a flowchart −
- Flowchart can have only one start and one stop symbol
- On-page connectors are referenced using numbers
- Off-page connectors are referenced using alphabets
- General flow of processes is top to bottom or left to right
- Arrows should not cross each other
Example Flowcharts
Here is the flowchart for going to the market to purchase a pen.
Here is a flowchart to calculate the average of two numbers.
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