题解 | #计算商场折扣#

import java.util.Scanner;
public class Main{
    public static void main(String[]args){
        Scanner in = new Scanner(System.in);
        int input = in.nextInt();
        if(input>=5000)
        {
            System.out.println((int)((double)input*0.6));
        }
        else if(input>=2000)
        {
            System.out.println((int)((double)input*0.7));
        }
        else if (input>=500)
        {
            System.out.println((int)((double)input*0.8));
        }
        else if (input>=100)
        {
            System.out.println((int)((double)input*0.9));
        }
        else
        {
            System.out.println(input);
        }
    }
}