While compiler write: "Wrong answer"
On my PC answer is correct...

#include <iostream>
#include <math.h>
#include <vector>
using namespace std;

int main()
{
    double n;

    vector<double> v;

    while(cin >> n){
        v.push_back(n);
    }

    for(unsigned int i=v.size();i>0;i--)
    {
        cout.precision(4);
        cout<<fixed<<sqrt(v[i-1])<<endl;
    }


    return 0;
}