L1-035. 情人节(java) PAT团体程序设计天梯赛-练习集

时间:2023-02-14 17:20:17

朋友圈中一奇葩贴:“2月14情人节了,我决定造福大家。第2个赞和第14个赞的,我介绍你俩认识…………咱三吃饭…你俩请…”。现给出此贴下点赞的朋友名单,请你找出那两位要请客的倒霉蛋。

输入格式:

输入按照点赞的先后顺序给出不知道多少个点赞的人名,每个人名占一行,为不超过10个英文字母的非空单词,以回车结束。一个英文句点“.”标志输入的结束,这个符号不算在点赞名单里。

输出格式:

根据点赞情况在一行中输出结论:若存在第2个人A和第14个人B,则输出“A and B are inviting you to dinner…”;若只有A没有B,则输出“A is the only one for you…”;若连A都没有,则输出“Momo… No one is for you …”。

输入样例1:

GaoXZh
Magi
Einst
Quark
LaoLao
FatMouse
ZhaShen
fantacy
latesum
SenSen
QuanQuan
whatever
whenever
Potaty
hahaha
.

输出样例1:

Magi and Potaty are inviting you to dinner…

输入样例2:

LaoLao
FatMouse
whoever
.

输出样例2:

FatMouse is the only one for you…

输入样例3:

LaoLao
.

输出样例3:

Momo… No one is for you …

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = 1;
        String name = scanner.next();
        String A = null, B = null;
        while (!".".equals(name)) {
            if (n == 2) {
                A = name;
            }
            if (n == 14) {
                B = name;
            }
            name = scanner.next();
            n++;
        }

        if (n > 14) {
            System.out.println(A + " and " + B + " are inviting you to dinner...");
        } else if (n > 2 && n < 14) {
            System.out.println(A + " is the only one for you...");
        } else {
            System.out.println("Momo... No one is for you ...");
        }
    }
}