#include <iostream>
using namespace std;
#include <cassert>

int main()
{
  int count,n;
  double e,r,guess,oldguess;
  cout << "Number to compute the square root? ";
  cin >> n;
  assert(n>0);
  cout << "To which precision?";
  cin >> e;
  assert(e>0);

  guess = n/2.0;
  count = 0;
  do {
    r = n/guess;
    oldguess = guess;
    guess = (guess+r)/2.0;
    cout << guess << endl;
    count++;
  } while(guess - oldguess >= e || oldguess - guess >= e);
  cout << "The answer is " << guess << endl;
  cout << "I did " << count << " iterations.\n";
  return 0;
}