[并查集] 洛谷P1551 亲戚 java版

题目链接：

https://www.luogu.org/problem/P1551

并查集模板：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StreamTokenizer;

public class Main {
	static int father[];
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		StreamTokenizer in=new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
		while(in.nextToken()!=StreamTokenizer.TT_EOF) {
			int n=(int)in.nval;
			father=new int[n+1];
			for(int i=1;i<=n;i++) {
				father[i]=i;
			}
			in.nextToken();
			int m=(int)in.nval;
			in.nextToken();
			int p=(int)in.nval;
			for(int i=0;ib) {
			father[a]=b;
		}else
			father[b]=a;
		
	}
	private static int findParent(int f) {
		// TODO Auto-generated method stub
		while(father[f]!=f) {
			f=father[f];
		}
		return f;
	}

}