17年秋季第四题 PAT甲级 1139 First Contact (30分)

浒鱼鱼

于 2020-03-17 00:13:18 发布

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分类专栏： PAT甲级文章标签： PAT甲级 1139 map c++

本文链接：https://blog.youkuaiyun.com/allisonshing/article/details/104912070

该博客详细介绍了PAT甲级编程竞赛中的1139题——First Contact的问题背景、题意解析、算法分析及满分C++代码实现。通过建立友谊关系网络，解决两性之间或同性之间寻找可以帮助传递消息的朋友配对问题。博客内容包括输入输出规格、样例输入输出、问题分析和完整解决方案，并分享了刷题技巧和备考建议。

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题目来源：https://pintia.cn/problem-sets/994805342720868352/problems/994805343043829760

备考汇总贴：2020年6月PAT甲级满分必备刷题技巧

Unlike in nowadays, the way that boys and girls expressing their feelings of love was quite subtle in the early years. When a boy A had a crush on a girl B, he would usually not contact her directly in the first place. Instead, he might ask another boy C, one of his close friends, to ask another girl D, who was a friend of both B and C, to send a message to B -- quite a long shot, isn't it? Girls would do analogously.

Here given a network of friendship relations, you are supposed to help a boy or a girl to list all their friends who can possibly help them making the first contact.