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...
find 和 unionSet 操作都可以看成是常数级的,或者准确来说,在一个包含nn 个元素的并查集中,进行mm 次查找或合并操作,最坏情况下所需的时间为O(mα(n))O(mα(n)),这里的αα是Ackerman 函数的某个反函数,在极大的范围内(比可观察到的宇宙中估计的原子数量10801080 还大很多)都可以认为是不大于 4 的。...
Use "Disjoin-set".But I use "HashSet" and "HashMap" of Java API.Does "Disjoin-set" have its own data structure? see also [url]http://www.csie.ntnu.edu.tw/~u91029/DisjointSets.html[/url] */ private final int SIZE=7; private int[] father;//the root in disjion set. private ...
I. Introduction 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. ・Variable names in Fortran ...
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 ...
Initialize your data structure here. """ self.intervals = [] def addNum(self, val): """ :type val: int :rtype: void """ heapq.heappush(self.intervals, (val, Interval(val, val))) def getIntervals(self): """ :rtype: List[Interval] """ stack = [] while self.intervals: idx...
* https://www.programcreek.com/2014/08/leetcode-data-stream-as-disjoint-intervals-java/ * 本题最快捷的方法就是使用TreeSet等结构,这是第一次用, * */ class SummaryRanges { TreeSet<Interval> set=null; /** Initialize your data structure here. */ ...
MDTA modifies the RELAX function to include additional information about the remaining links in the graph, which are not considered in Dijkstra’s algorithm, to provide a comprehensive characterization of the graph in just one data structure, the CM. These adjustments include storing the accumulated...
A disjoint set has no common element between them. For example, if there are two sets, A = {x, y} and B = {p, q}. As we can see that there are no common elements between the sets. We can take the intersection of two sets. A?B=?.A?B=?. Therefore, the intersection of two...
Following are the time complexities of disjoint set operations: Find(x):O(log n) where n is the number of elements. Union(x, y):O(log n) where n is the number of elements. MakeSet(x):O(1) Following are the applications of disjoint set data structure: ...