Inverzni broj

#include <iostream>
#include <cmath>
using namespace std;
main()
{
      int n, s, i, m;
      cin >> n;
      i=0;
      m=n;
      do
      {
          m = m/10;
          i=i+1;
      }
      while (m > 0);
      s=0;
      do
      {
            s = s + (n%10) * pow(10.0,i-1);
            n = n / 10;
            i = i - 1;
      }
      while (i>0);
      cout << s;
      system("PAUSE");
}