HDOJ 2552 三足鼎立

HDACM 2552

注意： System.out.println((int)(v*u-s*u-s*v))；是错误的。

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner sc = new Scanner(System.in);int t = sc.nextInt();while(t-->0){double s = sc.nextDouble();double u = sc.nextDouble();double v = 1.0/Math.tan(Math.atan(1.0/s)-Math.atan(1.0/u));System.out.printf("%.0f",(v*u-s*u-s*v));System.out.println();}sc.close();}
}