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1. Introduction to Recursive Calls in C Language
In C, recursion refers to the process where a function calls itself in order to solve smaller
instances of a problem. A recursive function typically has two main components:
1. Base case: The condition that stops the recursion to prevent infinite calls.
2. Recursive case: The part where the function calls itself with modified
parameters.
A common example of recursion is the calculation of factorials or Fibonacci numbers.
Here's a basic example of a recursive function in C:
In this example:
• The base case is when n == 0 or n == 1, where the recursion stops.
• The recursive case is when the function calls itself with n - 1.
Quiz: Understanding Recursive Calls
Here are two quizzes to test your understanding of how a recursive function works.
Below are C program that contains a recursive function. Predict the output for n = 3.
2. Write a program to create a single linked list with four nodes. Each node represents a
user containing the name and the age of this user.
Example:
Input:
Output:
3. Fill in the blanks or complete the following program to make it work as
described.
Output:
Length of str1: 6
Concatenated string (str1 + str2): APSIPA ASC 2024
Comparison result (strcmp(str1, str4)): -1 (since "APSIPA" is lexicographically
smaller than "apsipa")
Converted integer + 10: 52
Copied string into str1: ASC 2024