package 并查集; import java.util.Scanner; public class 并查集 { //英文名字叫Disjoint Set,作用检查一个图是否存在一个环 //将代表父节点的数组parent[],每一个元素的值初始化为-1,代表每一个节点都是根节点,是一棵独立的树。 //rank数组表示树的高度,一开始一棵树只有一个节点则每棵树的高度都初始
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...
voidunionSet(intx,inty) { if((x = find(x)) == (y = find(y)))return; if(uset[x] < uset[y]) { uset[x] += uset[y]; uset[y] = x; }else{ uset[y] += uset[x]; uset[x] = y; } } 如果要获取某个元素 x 所在集合包含的元素个数,可以使用 -uset[find(x)] 得到。
首先的问题是:如何去表示各个不相交集合,一说到集合,很容易想到使用Java内置的Set,那么就会有\(Set_{0},Set_{1},Set_{2}...\) 因此可以使用List<Set<Integer>>的形式表示,这里假设元素类型是Integer,其实视频里说,这是Berkeley学生的想法,我也没想到,(= =)这种数据结构看起来比较复杂,Josh说实现起来也很...
Given an array nums, partition it into two (contiguous) subarrays left and right so that: Every element in left is less than or equal to every element ... java i++ 转载 mb5fdb1365b75a0 2021-07-23 05:25:00 53阅读 2 并查集(DisjointSet)详解+例题 ...
TreeSet UnknownFormatConversionException UnknownFormatFlagsException UUID Vector WeakHashMap Java.Util.Concurrent Java.Util.Concurrent.Atomic Java.Util.Concurrent.Locks Java.Util.Functions Java.Util.Jar Java.Util.Logging Java.Util.Prefs Java.Util.RandomGenerators ...
disjoint-set:Java Disjoint Set 数据结构实现 不相交集 Java 数据结构实现 用法 org.nnsoft.trudeau.collections.disjointset.DisjointSet是一个泛型友好的数据结构,它提供E find( E e )和void union( E e1, E e2 ) 。 上传者:weixin_42157556时间:2021-06-22 ...
Java MST-ReplacementEdges: Find Minimum Spanning Tree Replacement Edges graphmstgraph-theorytarjan-algorithmdisjoint-setsminimum-spanning-treedisjoint-unionsgraph-algorithm UpdatedDec 16, 2020 C Union find / disjoint union set pythonalgorithmsdata-structuresdisjoint-setdisjoint-setsdisjoint-unions ...
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...
public void addDisjointClasses(List<ATermAppl> classes) { addDisjointClasses( ATermUtils.toSet( classes ) );