代码语言:python 代码运行次数:0 运行 AI代码解释 classDisjointSet:def__init__(self,size):self.parent=[iforiinrange(size)]self.rank=[0]*sizedeffind(self,x):ifself.parent[x]!=x:self.parent[x]=self.find(self.parent[x])# 路径压缩re
disjoint_set_network.union(3,4)print(are_nodes_connected(disjoint_set_network,0,2))# 输出: Trueprint(are_nodes_connected(disjoint_set_network,0,3))# 输出: False 总结 并查集是一种用于处理集合的高效数据结构,通过路径压缩和按秩合并等优化策略,可以在常数时间内执行合并和查找操作。在Python中,可以通...
classDisjointSet:def__init__(self,size):self.parent=[iforiinrange(size)]self.rank=[0]*sizedeffind(self,x):ifself.parent[x]!=x:self.parent[x]=self.find(self.parent[x])# 路径压缩returnself.parent[x]defunion(self,x,y):root_x=self.find(x)root_y=self.find(y)ifroot_x!=root_y...
A Disjoint-Set implementation which makes use of the the "Union by Rank" and "Path Compression" heuristic optimizations while being as simple and effective as possible. It support the following operations: Find-SetinO(1)amortized running time ...
The disjoint set forest is stored as an array of vertices, with each entry storing the index of the parent (same as parent tree in graph search). For non-integer vertices, a hash function may be used, and the disjoint forest is stored as a hash table. In the specific implementation, ...
第二种启发式策略是路径压缩,也相当简单和高效。正如下图所示,在find_set(x)操作中,使用这种策略可以使查找路径中的每个结点直接指向根。路径压缩并不改变任何结点的秩。~ 并查集的Python实现 class UnionFind(object): """并查集类""" ...
Union find / disjoint union set pythonalgorithmsdata-structuresdisjoint-setdisjoint-setsdisjoint-unions UpdatedApr 17, 2022 Python aKhfagy/data-structures-algorithms Star1 What I learned from Data Structures and Algorithms Specialization on Coursera. ...
disjoint-set:Python的DisjointSet数据结构实现 不相交 于Python的 (又称联合查找数据结构或合并查找集)实现。 先决条件 唯一的要求是安装Python 3,您可以通过运行以下命令进行验证: $ python --version Python 3.7.2 安装 pip install disjoint-set 您可以通过运行以下命令来验证您正在运行最新的软件包版本: >> >...
Assume you have k<=10^5 intervals [a_i, b_i] \in [1,10^18] (some of them may overlap), and you need to choose a set of intervals mutuallydisjointsuc sed c++ ide 编程题 转载 mob604756e97f09 2019-08-23 15:11:00 129阅读 ...
In this second phase, MDTA derives multiple link- or node-disjoint trees among S, and the set of destination nodes. These trees are stored and returned in a new matrix named Tree Matrix (TM). This design allows MDTA to compute multiple (link- or node-) disjoint trees in a single run...