What is the significance of external declaration, C/C++ Programming

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Problem

1 What is the difference between function declaration and function definition?

2 Write a recursive function to find sum of even numbers from 2 to 10.

3 List some of the storage classes available in C.

4 What is the significance of external declaration?

5 With the help of pointers, write a program that uses functions to swap the data.

6 What is a structure? How does a structure differ from an array? How is a structure type pointer variable declared?


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