Help in code... Needs a desired update in a function though already works!😂for a PALINDROME number

Question

The reverse()function in the attached code with specifications: no use of revnum variable(or such)or loop and no use of string and the function signature should remain intact
Necessarily should be a recursive function
https://code.sololearn.com/cQmSL8rWOyA7/?ref=app
Sorry for the lack of comments😐

Answer 1

ok instead of loop (to find the length of the number) use
log10​(n)

or many
if (n>=100_000) .. else if (n>=10_000) ...

or write intLength( n ) as recursive method

Answer 2

{
y = 1234_5
int revnum = reverse(1234) // 4321
in loop
4321
432
43
4
// (4x)
return 5*10000 +4321
}

end of recursion if y is only one digit

Answer 3

Sorry, but not using of a loop is a specification here

Answer 4

Thanks