Hackerrank Super Reduced String Solution - JAVA

 Hackerrank Super Reduced String Solution - JAVA

For explanation watch Video ::

Code:

import java.io.*;

import java.math.*;

import java.security.*;

import java.text.*;

import java.util.*;

import java.util.concurrent.*;

import java.util.function.*;

import java.util.regex.*;

import java.util.stream.*;

import static java.util.stream.Collectors.joining;

import static java.util.stream.Collectors.toList;

class Result {

    /*

     * Complete the 'superReducedString' function below.

     *

     * The function is expected to return a STRING.

     * The function accepts STRING s as parameter.

     */

    public static String superReducedString(String s) {

        StringBuilder sb = new StringBuilder(s);

        for(int i=1;i<sb.length();i++){

            if(sb.charAt(i)==sb.charAt(i-1)){

                sb.delete(i-1,i+1);

                i=0;

            }

        }

        String ans = sb.toString();

        if(ans.length()==0){

            return "Empty String";

        }else{

            return ans;

        }

    }

}

public class Solution {

    public static void main(String[] args) throws IOException {

        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        String s = bufferedReader.readLine();

        String result = Result.superReducedString(s);

        bufferedWriter.write(result);

        bufferedWriter.newLine();

        bufferedReader.close();

        bufferedWriter.close();

    }

}