Introduction
I have used Code::blocks 12 compiler for debugging purpose. But you can use any C programming language compiler as per your availability.
Write C program to find reverse of a number using recursion
#include <stdio.h>
#include <math.h>
//Fuction declaration
int reverseNumber(int num);
int main()
{
int num, reverse;
// Inputting number from user
printf("Enter any number: ");
scanf("%d", &num);
// Calling function to reverse any number
reverse = reverseNumber(num);
printf("Reverse of %d : %d", num, reverse);
return 0;
}
//Recursive function to find reverse of any number
int reverseNumber(int num)
{
// Find total digits in num
int digit = (int) log10(num);
// Base condition
if(num == 0)
return 0;
return ((num%10 * pow(10, digit)) + reverseNumber(num/10));
}
Result
