2017年2月20日

1013. Battle Over Cities (25)

摘要： It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enemy, all the highways from/toward that c 阅读全文

posted @ 2017-02-20 21:35 小小旅行商 阅读(114) 评论(0) 推荐(0) 编辑