I don't understand this system. It writes: "wrong answer". Who can talk me what's wrong with my program:

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
void f()
{
  float d;
  if (!(cin >> d)) return;
  f();
  d = sqrt(d);
  cout.precision(4);
  cout << d;
  cout << "\n";
}

void main()
{
  f();
}

Thank you very much!

Change this :{cout.precision(4);
cout << d;
cout << "\n";}
 to:printf("%.4lf\n",d);

It doesn't work too! (((

make an array[1000000] of __int64
then reverse it and print!!!
May be there is another better solution, but this work's!!!

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

void f()
{

double d;//!

if (!(cin >> d)) return;
f();
d = sqrt(d);
cout << d;
cout << "\n";
}
//!
#pragma comment(linker, "/STACK:16777216")

int main()
{

cout.setf(ios::showpoint | ios::fixed);//!
cout.precision(4);
f();
return 0;
}
It works!

Edited by author 04.03.2008 15:28

Edited by author 04.03.2008 15:29