poj1005

package easy;


import java.util.Scanner;

/**
 *poj1005 easy
 * 使用Math里，要写完整 java.lang.Math不然poj编译过不了
 * @author NC
 */
public class Poj1005 {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        if (scan.hasNext()) {
            int n = scan.nextInt();
            for (int i = 1; i <= n; i++) {
                double x = scan.nextFloat();
                double y = scan.nextFloat();
                double s = java.lang.Math.PI * (java.lang.Math.pow(x, 2) + java.lang.Math.pow(y, 2)) / 2;
                int count = 0;
                while (s > 0) {
                    s = s - 50;
                    count++;
                }
                System.out.println("Property " + i
                        + ": This property will begin eroding in year " + count+".");
            }
            System.out.println("END OF OUTPUT.");
        }
    }
}