题解 | 四季

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = a % 10 + a / 10 % 10 * 10;
        if(b==5) System.out.println("spring");
        switch (b) {
            case 11:
            case 12:
            case 1:
                System.out.println("winter");
                break;
            case 2:
            case 3:
            case 4:
                System.out.println("spring");
                break;
            case 6:
            case 7:
                System.out.println("summer");
                break;
            case 8:
            case 9:
            case 10:
                System.out.println("autumn");
                break;
        }
    }
}