2014 北京区域赛 dp
摘要：
Matt has N friends. They are playing a game together. Each of Matt’s friends has a magic number. In the game, Matt selects some (could be zero) of his 阅读全文
posted @ 2017-11-14 22:31 九月旧约 阅读(273) 评论(0) 推荐(0) 编辑
Heron and His Triangle 2017 沈阳区域赛
摘要：
A triangle is a Heron’s triangle if it satisfies that the side lengths of it are consecutive integers t−1, t, t+ 1 and thatits area is an intege 阅读全文
posted @ 2017-11-14 21:38 九月旧约 阅读(478) 评论(0) 推荐(0) 编辑
