Q:

Write C++ program to find reverse of a number using recursion

YasminRadwan26
Save to bookmark
|
2022-05-08
|
  205 
Easy
0

Write C++ program to find reverse of a number using recursion

C++ programming, examples, C++ programming examples,
login and add your own answer to this question

All Answers

YasminRadwan26
2022-05-08
need an explanation for this answer? contact us directly to get an explanation for this answer

I have used CodeBlocks compiler for debugging purpose. But you can use any C++ programming language compiler as per your availability.

#include <iostream>
#include <math.h>
 
using namespace std;
 
 //Fuction declaration
int reverseNumber(int num);
 
int main()
{
    int num, reverse;
 
    // Inputting number from user
    cout<<"Enter any number: ";
    cin>>num;
 
    // Calling function to reverse any number
    reverse = reverseNumber(num);
 
    cout<<"Reverse of number "<<num <<" is: "<<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:

Enter any number: 123

Reverse of number 123 is: 321

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

c++ language function and recursion programming exercises
This question belongs to these collections

Similar questions

need a help?

find thousands of online teachers now
Write C++ program to find LCM of two numbers using... >>
<< Write C++ program to print even or odd numbers in ...