import java.text.*;
import java.util.*;

public class Main {

    public static final int TREAD_MAX_SIZE = 262144;

    public static void main (String[] args) {

        DecimalFormatSymbols s = new DecimalFormatSymbols();
        s.setDecimalSeparator('.');
        DecimalFormat f = new DecimalFormat("0.0000",s);

        Scanner scan = new Scanner(System.in);

        int size = 0;
        String string = "";
        while (scan.hasNextLine()) {
            String line = scan.nextLine();
            int sizeline = line.length();
            size += sizeline;
            if (size <= TREAD_MAX_SIZE) {
                string += line;
            } else {
                break;
            }
        }
        scan.close();

        double min = 0;
        double max = Math.pow(10, 18);
        String[] str = string.trim().split("\\s+");
        for (int i = str.length - 1; i >= 0; i--) {
            Double val = Double.valueOf(str[i]);
            if (val >= min && val <= max) {
                val = Math.sqrt(val);
                System.out.println(f.format(val));
            }
        }
    }
}

What's wrong?
Code without checking the boundary conditions passed test (0 ≤ Ai ≤ 10^18 and 256КB)! Why?



Edited by author 28.01.2016 14:06