【试题 基础练习 矩形面积交】最废的矩形相交面积解

import java.io.BufferedWriter;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.*;

public class Main {
    public  static  void main(String [] args){
        Scanner sc =new Scanner(System.in);
        double a=sc.nextDouble();
        double b=sc.nextDouble();
        double c=sc.nextDouble();
        double d=sc.nextDouble();
        double A=sc.nextDouble();
        double B=sc.nextDouble();
        double C=sc.nextDouble();
        double D=sc.nextDouble();

       double m = Math.max(Math.min(a,c),Math.min(A,C));
       double n = Math.max(Math.min(b,d),Math.min(B,D));
       double M = Math.min(Math.max(a,c),Math.max(A,C));
       double N =Math.min(Math.max(b,d),Math.max(B,D));

       if(M>m&&N>n) System.out.printf("%.2f",(M-m)*(N-n));
       else System.out.println("0.00");
   }
}