201709-1打酱油

题目：

代码：

 import java.util.Scanner;

public class BuySauce {
    
    public static void main(String[] args) {
        int money;
        int num;
        int saucePrice = 10;
        Scanner scan = new Scanner(System.in);
        
        money = scan.nextInt();
        
        if(money<30)
            num = money/saucePrice;
        else if(money>=30 && money<50)
            num = (money/30)*4 + (money%30)/saucePrice;
        else
            num = (money/50)*7 + ((money%50)/30)*4 + ((money%50)%30)/saucePrice;
        
        System.out.println(num);
        
    }

}

主类名称改为Main