题解 | #计算商场折扣#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        int price = console.nextInt();
        int cost = 0;

        //write your code here......
        if (price>=5000){
            cost = (int)Math.floor(price*0.6);
        } else if (price>=2000){
            cost = (int)Math.floor(price*0.7);
        }else if (price>=500){
            cost = (int) Math.floor(price*0.8);
        } else if (price>=100) {
            cost = (int)Math.floor(price*0.9);
        }else {
            cost = (int) Math.floor(price);
        }

        System.out.println(cost);
    }
}