qq_15351029的博客

并查集算法参考文档:https://baike.baidu.com/item/%E5%B9%B6%E6%9F%A5%E9%9B%86/9388442?fr=aladdinhttps://www.cnblogs.com/gzh-red/p/11011539.htmlhttps://baijiahao.baidu.com/s?id=1651803445417553212&wfr=spider&for=pchttps://zhuanlan.zhihu.com/p/93647900/前

leetCode算法 997问题：https://leetcode-cn.com/problems/find-the-town-judge/package com.leetCode;import java.util.HashMap;import java.util.Map;/** * 描述: * leetCode 997 * * @author jimmy * @create 2020-10-29 21:05 */public class Leet997 { publ