I am getting wrong answer. But output is identical in my computer. Here is my code -

#include <stdio.h>
#include <math.h>
#define ARRSIZE 32768

int main(){
    unsigned long int n, a[ARRSIZE];
    int i = -1;

    while(!feof(stdin)){
        i++;
        scanf("%lu", &n);
        a[i] = n;
    }

    i--;

    for(; i >=0; i--){
        printf("%0.4lf\n", sqrt(a[i]));
    }

    return 0;
}