Quick Union 的时间复杂度就完全取决于树的深度,但是对树的平衡性完全没有控制,因此在最坏情况下,输入的数据是一条链形的结构,即树变成了链表,那么 union 和 find 的复杂度都会变成 $O(N)$ ,比 Quick Find 还要差。 Quick Union 的代码如下,由于经产需要查找根结点的操作,因此单独定义了 root 函数。 22cl...
}~UnionFind() {//析构函数delete[] parents;delete[] ranks; }#if0//递归实现路径压缩intfindParent(intvalue) { assert(value< capacity_ && value >=0);if(parents[value] !=value) { parents[value]=findParent(parents[value]); }returnparents[value]; }#elif0//迭代实现路径压缩1intfindParent(...
20while(p !=root):21newp = self.__parent[p]22self.__parent[p] =root23p =newp24returnp2526defconnected(self, p, q):27returnself.find(p) ==self.find(q)28#Merges the component containig site p with29#the component containing site q30defunion(self, p, q):31rootP=self.find(p)32...
Lock-free parallel disjoint set data structure (aka UNION-FIND) with path compression and union by rank - wjakob/dset
A union-find disjoint sets data structure implemented in Python with the "Weighted Quick Union with Path Compression" algorithm. algorithms-datastructuresunion-findunion-by-rank-and-path-compression UpdatedOct 7, 2021 Python ryanmcdermott/algorithms ...
Union-Find (Python recipe) A.k.a. Disjoint set forests. Minimalistic implementation. Directly ported from pseudo code on the Wikipedia page:http://en.wikipedia.org/wiki/Disjoint-set_data_structure Employs path compression and union by rank as described in the link above....
The ability to find satisfactory solutions for complex problems in a time-efficient manner has solidified the importance of these methods in the field of optimization. However, as the intricacy of such problems continues to grow, the challenges associated with efficiently solving them also intensify....
Error scaffolding when I try to add "new controller with view using entity framework" Error when adding View : Unable to retrieve metadata for 'efEntity' . Could not find the CLR type for 'Model' Error while uploading large files (FAILED to load resource: net::ERR_CONNECTION_RESET) Error...
Union-by-rank with path compression, O(log(n)*)≃ O(1) (推荐使用) ## 解法三:UnionFind 并查集经典解法 class UnionFind: ## 定义为一个类。后面类似的题目,也可以直接搬去使用 def __init__(self, grid): ## 初始化 m, n = len(grid), len(grid[0]) self.count = 0 ## count 是最...
Python Set Union Method - Learn how to use the set union method in Python to combine multiple sets. Understand its syntax and practical examples to enhance your coding skills.