int n=12345,m=0;
cout«"Orginal No:“<
while(n>0)
{
m *= 10;
m += n%10;
n /= 10;
}
cout«”\nRevesed No:“<
Recursive function
int reverse\_num(int n,int m)
{
if(n==0)
return m; //base (exit condition)
m\*=10;
m+=n%10;
return reverse\_num(n/10,m); //recursive call
}
```