POJ系列——java

import java.util.Scanner;

/**
* Created by admin on 2017/10/25.
*/
public class POJ1005 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
for (int i=0;i<n;i++) {
float x = in.nextFloat();
float y = in.nextFloat();
double s = (Math.PI)*((Math.pow(x,2))+(Math.pow(y,2)))/2;
int year = (int)s/50;
System.out.println("Property "+(i+1)+": This property will begin eroding in year "+(year+1)+".");
}
System.out.println("END OF OUTPUT.");
}
}