题解 | 计算商场折扣

import java.util.*;
class Main 
{
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        int price = sc.nextInt();
        int cost = (int)(price<100 ? price : price<500
        ? price*0.9 : price<2000
        ? price*0.8 : price<5000
        ? price*0.7 : price*0.6
        );
        System.out.print(cost);
    }    
}