What are the Needs of User Defined Functions?

  • Functions are the building blocks where every program activity occurs.
  • Functions are self-contained program blocks that carry out some specific, wel-defined task.
  • User defined functions are subordinate to main() and also to one another.
  • If facilitates top-down modular programming.
  • Length of program can be reduced using functions.
  • It makes debugging easier.
  • It provides the facility of reusability of module.

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