Write a C Program to Reverse String using Recursion

By | 29.11.2016

C Program to Reverse String using Recursion


Write a C Program to Reverse String using Recursion. Here’s simple Program to Reverse String using Recursion in C Programming Language.


Recursion : :


  • Recursion is the process of repeating items in a self-similar way. In programming languages, if a program allows you to call a function inside the same function, then it is called a recursive call of the function.
  • The C programming language supports recursion, i.e., a function to call itself. But while using recursion, programmers need to be careful to define an exit condition from the function, otherwise it will go into an infinite loop.
  • Recursive functions are very useful to solve many mathematical problems, such as calculating the factorial of a number, generating Fibonacci series, etc.

Problem : :


This C Program uses recursive function & reverses the string entered by user in the same memory location.

Example : :  “codezclub” will be reversed to “bulczedoc”

Below is the source code for C Program to Reverse String using Recursion which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :


/* C Program to Reverse String using Recursion */


#include <stdio.h>
#include <string.h>
 
void reverse(char [], int, int);
int main()
{
    char str1[20];
    int size;
 
    printf("Enter a string to reverse: ");
    scanf("%s", str1);
    size = strlen(str1);
    reverse(str1, 0, size - 1);
    printf("The string after reversing is: %s\n", str1);
    return 0;
}
 
void reverse(char str1[], int index, int size)
{
    char temp;
    temp = str1[index];
    str1[index] = str1[size - index];
    str1[size - index] = temp;
    if (index == size / 2)
    {
        return;
    }
    reverse(str1, index + 1, size);
}

Output : :


***************** OUTPUT ********************


***************** FIRST RUN *****************

Enter a string to reverse: CodezClub
The string after reversing is: bulCzedoC



***************** SECOND RUN *****************

Enter a string to reverse: reverse
The string after reversing is: esrever

If you found any error or any queries related to the above program or any questions or reviews , you wanna to ask from us ,you may Contact Us through our contact Page or you can also comment below in the comment section.We will try our best to reach up to you in the short interval.


Thanks for reading the post….

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About Tunde A

My name is Tunde Ajetomobi, a Tech Enthusiast and Growth Hacker. I enjoy creating helpful content that solves problem across different topics. Codezclub is my way of helping young aspiring programmers and students to hone their skills and find solutions on fundamental programming languages.

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