What is Recursion | Recursion Introduction | Data Structures using C in Hindi

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Introduction to Recursion
Recursion - Calling oneself, is a programming technique in which a function continuously calls itself until a certain condition is met. It is a powerful tool for solving problems that can be divided into smaller subproblems, but it can also be difficult to understand and debug if not used correctly.
A recursive function must have a base case, which is a condition that causes the function to stop calling itself. In the example above, the base case is when n == 0. If the function does not have a base case, it will continue calling itself indefinitely and will eventually run out of memory, causing a stack overflow error.
A recursive function should make progress towards the base case each time it calls itself. If the function does not make progress, it will also continue calling itself indefinitely and will eventually run out of memory.
Recursive functions can be more expensive in terms of memory and processing power than non-recursive functions, because each call to the function creates a new frame on the call stack. It is important to use recursion wisely and make sure that it is the most efficient solution to the problem at hand.
Recursion can be used to solve problems in many different fields, such as computer science, mathematics, and linguistics. Some common examples of problems that are well-suited to recursion include searching and sorting algorithms, tree traversal, and generating and manipulating recursive data structures.
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