题解 | #万万没想到之聪明的编辑#

import java.util.Scanner;

public class Main {
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);

        while(in.hasNext()){
            solution(in);
        }
    }

    /**
     * 正则
     * @param in
     */
    private static void solution(Scanner in){
        int n = Integer.parseInt(in.nextLine());

        for(int i=1; i<=n; i++){
            System.out.println(in.nextLine().replaceAll("(\\w)\\1{2,}","$1$1").replaceAll("(\\w)\\1(\\w)\\2","$1$1$2"));
        }
    }
}