Given an array equations of strings that represent relationships between variables, each string equations[i] has length 4and takes one of two different forms: "a==b" or "a!=b".  Here, a and b are lowercase letters (not necessarily diff…

class Finder: def __init__(self): self.Parent = [i for i in range(26)] def union(self, p, q): self.Parent[self.find(p)] =self.find(q) def find(self, p): if self.Parent[p] != p: return self.find(self.Parent[p]) else: return p class Solution(object): d…

并查集算法,也叫Union-Find算法,主要用于解决图论中的动态连通性问题. Union-Find算法类 这里直接给出并查集算法类UnionFind.class,如下: /** * Union-Find 并查集算法 * @author Chiaki */ public class UnionFind { // 连通分量个数 private int count; // 存储若干棵树 private int[] parent; // 记录树的"重量" private int[] size…