摘要：
链接: https://vjudge.net/problem/HDU 2296 题意: For the hope of a forever love, Steven is planning to send a ring to Jane with a romantic string engraved 阅读全文
摘要：
链接: https://vjudge.net/problem/HDU 2825 题意: Liyuan lives in a old apartment. One day, he suddenly found that there was a wireless network in the build 阅读全文