题解 | #汽水瓶#

1. 不要在意变量名

2. 要有3个变量 喝的瓶数是在变的，所以，需要另一个变量来记录最终喝的多少，还要记录空瓶数

3. 不足之处请给与指正

import java.util.ArrayList;
import java.util.Iterator;
import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        ArrayList<Integer> result = new ArrayList<>();
        Scanner sc = new Scanner(System.in);

        while (sc.hasNext()){
            int he = 0;
            int resulthe =0;
            int kong = sc.nextInt();
            if(kong ==0){
                break;
            }else {
                while (kong >=3){
                    he = kong/3;
                    kong = kong%3 + he;
                    resulthe += he;
                    if(kong ==2){
                        resulthe +=1;
                    }
                }
                result.add(resulthe);
            }

        }
        Iterator<Integer> it = result.iterator();
        while (it.hasNext()){
            System.out.println(it.next());
        }
    }
}