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Explain top-down design and structure chart of function in C language
A function is a self-contained block that carries out a specific well defined task.
Advantages of functions in C language include −
- Reusability.
- The length of the program can be reduced.
- It is easy to locate and find any faulty function.
- It facilitates top-down modular programming.
Top down design and structure charts
It is a problem solving method in which a complex problem is solved by splitting into sub problems.
Structure chart is a documentation tool that shows the relationships among the sub problems of a problem.
The splitting of a problem into its related sub problems is the process of refining an algorithm. For example, performing arithmetic operations on 2 numbers, we can do the following −
- Find sum.
- Find difference.
- Find product.
- Find quotient.
Refined algorithm for first step is as follows −
- Take 2 numbers a, b
- Find sum, c = a + b
- Print sum
Structure chart
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