// reverse.cpp
// Reverse the digits of a number.
#include <iostream>
using std::cin;
using std::cout;
using std::endl;

#include <iomanip>
using std::setw;

/* Write prototype for reverseDigits */
int reverse (int number);



int main()
{
int number; // input number
int ans;

cout << "Enter a number between 1 and 9999: ";
cin >> number;

cout << "The number with its digits reversed is: ";

// find number with digits reversed
ans = reverse(number);


cout << ans << endl;

return 0; // indicate successful termination
} // end main



// reverseDigits returns number obtained by reversing digits of n
/* Write function header for reverseDigits */
// STUDENT WRITES CODE BELOW ***************
int reverse (int divisor, int multiplier)
{

{
int reverse = 0; // reversed number
int divisor = 1000; // current divisor
int multiplier = 1; // current multiplier

// loop until single-digit number
while ( n > 9 )
{
// if n >= current divisor, determine digit
if ( n >= divisor )
{
// update reversed number with current digit
reverse += n / divisor * multiplier;
n %= divisor; // update n
/* Write a line of code that reduces divisor by a factor of 10 */
// STUDENT WRITES CODE HERE ***************


/* Write a line of code that increases multiplier by a factor of 10 */
// STUDENT WRITES CODE HERE ***************


} // end if
else // else, no digit
divisor /= 10; // update divisor
} // end while

reverse += n * multiplier;
return reverse; // return reversed number
} // end function reverseDigits