博客园 首页 私信博主 显示目录 隐藏目录 管理
摘要: Consider a rooted tree. A rooted tree has one special vertex called the root. All edges are directed from the root. Vertex u is called a child of vert 阅读全文
posted @ 2019-02-13 09:29 Brave_WTZ 阅读(129) 评论(0) 推荐(0) 编辑