#include <cstdio>
#include <cmath>
#include <iostream>
using namespace std;
int main()
{
    double ssqrt[4370],n;
    int i=0;
    while(cin>>n) {
    ssqrt[i]=sqrt(n);
    i++;
    }
    for(i-=1;i>=0;i--)
    printf("%.4f\n",ssqrt[i]);
    return 0;
}

Why 4370?
;)
And how I see, you have "Crash (access violation)".
It's problem of sizes.
I thing you must thing in this way.

Good Luck!