2014年2月5日
URAL 1018 Binary Apple Tree（树DP）
摘要： Let's imagine how apple tree looks in binary computer world. You're right, it looks just like a binary tree, i.e. any biparous branch splits up to exactly two new branches. We will enumerate by integers the root of binary apple tree, points of branching and the ends of twigs. This way we may 阅读全文
posted @ 2014-02-05 19:48 Oyking 阅读(420) 评论(0) 推荐(0)