Why TLE on 1 test?
It takes no time on example. Any piece of advice?

#include <cstdio>
#include <vector>
#include <cmath>
using namespace std;

int main()
{
    vector<long long> n;
    long long a = 0;
    while( a != EOF)
    {
        scanf("%llu", &a);
        n.push_back(a);
    }
    for (int i = n.size() - 2; i >= 0; i--)
    {
        printf("%.4f\n", sqrt(long double(n.at(i))));
    }
    return 0;
}

Looks like I've caught it. It freezes if ctrl+d used for EOF and it's do not response if ctrl+z used, when -1 used everything is OK.

Edited by author 01.05.2013 20:12

Edited by author 01.05.2013 20:12