How to reverse a number using recursion in c

Write a program to print the reverse of an integer number. Number entered by user using recursion.

 

In this post we shall learn how to revers a number using recursion in c programming.In this we shall write a program that take an input integer value from user and display the reverse of the entered number.

Example:

  user entered number  = 123456

  output of program      = 654321.

Now see the program: 

#include<stdio.h>
#include<conio.h>
int reversenumber(int);
int main()
{
    int number,result;
    printf("Enter Number\t");
    scanf("%d",&number);
    result = reversenumber(number);
    printf("The reverse of number %d is = %d",number,result);
}
int reversenumber(int n)
{
    int x;
    static int r = 0;
    if(n == 0)
    {
        return(n);
    }
    else
    {
        x = n%10;
        r = r*10 + x;
        reversenumber(n/10);
    }
    return(r);
}

Output:

   Enter Number   456123
  The reverse of number 456123 is = 321654.


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