Java 洛谷 P1567 统计天数

题目描述：

题目链接：
https://www.luogu.com.cn/problem/P1597
代码实例：

import java.util.Scanner;

public class Main{
    
    
    private static String a = "0", b = "0", c = "0";

    /**
     * 如果左边是abc，就把右边的数更新到成员变量身上
     */
    private static void judge(String left, String right) {
    
    
        switch (left) {
    
    
            case "a": {
    
    
                a = judgeTwo(right);
                break;
            }
            case "b": {
    
    
                b = judgeTwo(right);
                break;
            }
            case "c": {
    
    
                c = judgeTwo(right);
                break;
            }
            default:
                break;
        }
    }

    /**
     * 如果右边是字母，直接返回给成员变量
     * 如果右边是数字，直接赋值给成员变量
     */
    private static String judgeTwo(String right) {
    
    
        switch (right) {
    
    
            case "a": {
    
    
                return a;
            }
            case "b": {
    
    
                return b;
            }
            case "c": {
    
    
                return c;
            }
            default:
                return right;
        }
    }

    /**
     * 程序入口
     */
    public static void main(String[] args) {
    
    
        Scanner scanner = new Scanner(System.in);
        String raw = scanner.next(); // 输入第一行
        String semicolon[] = raw.split(";"); // 分号分割

        // ":="左右两个数进行判断
        for (int i = 0; i < semicolon.length; i++) {
    
    
            String two[] = semicolon[i].split(":=");
            judge(two[0], two[1]);
        }
        System.out.println(a + " " + b + " " + c);
    }

}

测试结果：