并查集 ( Disjoint-Set or Union-Find data structure ) 什么是并查集 1.将n个不重复的元素( distinct elements ), 分配到几个不相交集合( disjoint sets )的应用。 换句话说,一个不相交的集合(disjoint sets)是一组集合,其中任何项都不能出现在一个以上的集合中。 ( A d
有一个联合-查找算法(Union-find Algorithm)定义了两个用于此数据结构的操作: Find:确定元素属于哪一个子集。它可以被用来确定两个元素是否属于同一子集。 Union:将两个子集合并成同一个集合。 由于支持这两种操作,一个不相交集也常被称为联合-查找数据结构(Union-find Data Structure)或合并-查找集合(Merge-find...
Union-FindThe union-find data structure is motivated by Kruskal's minimum spanning tree algorithm (Algorithm 2.6), in which we needed two operations on disjoint sets of verticesdoi:10.1007/978-1-4612-4400-4_10Dexter C. KozenSpringer New York...
A basic union-find data structure for node.js. For more information, see wikipdia: Disjoint Set Datastructures Union find data structures solve the incremental connectivity problem. (That is maintaining a spanning forest under incremental insertions of edges.) To handle fully dynamic connectivity, you...
因为它支持这两种操作,一个不相交集也常被称为联合-查找数据结构(union-find data structure)或合并-查找集合(merge-find set)。 为了更加精确的定义这些方法,需要定义如何表示集合。一种常用的策略是为每个集合选定一个固定的元素,称为代表,以表示整个集合。接着。Find(x)返回x所属集合的代表,而Union使用两个集...
This patch implements a union-find data structure in the kernel library, which includes operations for allocating nodes, freeing nodes, finding the root of a node, and merging two nodes. Signed-off-by: Xavier <xavier_qy@163.com> Signed-off-by: Tejun Heo <tj@kernel.org>...
Based on the operational model, we describe our data structure in Sect. 3. Our algorithm for efficiently process- ing runtime events and updating the data structure is presented in Sect. 4. We discuss the performance of our approach first by providing bounds for the time complexity of a ...
This data structure is used to solve "Dynamic Connectivity" problem. 1. Applications ・Pixels in a digital photo. ・Computers in a network. ・Friends in a social network. ・Transistors in a computer chip. ・Elements in a mathematical set. ...
publicclassUF {privateint[] parent;//parent[i] = parent of iprivatebyte[] rank;//rank[i] = rank of subtree rooted at i (never more than 31)privateintcount;//number of components/*** Initializes an empty union-find data structure with ...
不相交集合数据结构(Disjoint-set data structure)是一种用于跟踪集合被分割成多个不相交的子集合的数据结构,每个集合通过一个代表来标识,代表即集合中的某个成员。 Union-Find 算法为该数据结构提供了两种非常有用的操作: Find:判断子集中是否存在特定的元素。可以用于检测是否两个元素存在于相同的子集中。