HackerRank Matching Same Text Again & Again Solution

Hello Programmers, In this post, you will learn how to solve HackerRank Matching Same Text Again & Again Solution. This problem is a part of the Regex HackerRank Series.

One more thing to add, don’t straight away look for the solutions, first try to solve the problems by yourself. If you find any difficulty after trying several times, then look for the solutions. We are going to solve the  Regex HackerRank Solutions using  CPP, JAVA, PYTHON, JavaScript & PHP Programming Languages.

You can practice and submit all HackerRank problem solutions in one place. Find a solution for other domains and Sub-domain. I.e. Hacker Rank solution for HackerRank C ProgrammingHackerRank C++ ProgrammingHackerRank Java Programming, HackerRank Python ProgrammingHackerRank Linux ShellHackerRank SQL Programming, and HackerRank 10 days of Javascript.

HackerRank Matching Same Text Again & Again Solution
HackerRank Matching Same Text Again & Again Solution

As you already know that this site does not contain only the Hacker Rank solutions here, you can also find the solution for other problems. I.e. Web Technology, Data StructuresRDBMS ProgramsJava Programs Solutions,  Fiverr Skills Test answersGoogle Course AnswersLinkedin Assessment, and Coursera Quiz Answers.

HackerRank Matching Same Text Again & Again Solution

This tool (\1 references the first capturing group) matches the same text as previously matched by the capturing group.

For Example:

(\d)\1: It can match 0011, 22334455667788 or 99.


You have a test string S.
Your task is to write a regex that will match S with the following conditions:

  • S must be of length: 20
  • 1st character: lowercase letter.
  • 2nd character: word character.
  • 3rd character: whitespace character.
  • 4th character: non word character.
  • 5th character: digit.
  • 6th character: non digit.
  • 7th character: uppercase letter.
  • 8th character: letter (either lowercase or uppercase).
  • 9th character: vowel (a, e, i , o , u, A, E, I, O or U).
  • 10th character: non whitespace character.
  • 11th character: should be same as 1st character.
  • 12th character: should be same as 2nd character.
  • 13th character: should be same as 3rd character.
  • 14th character: should be same as 4th character.
  • 15th character: should be same as 5th character.
  • 16th character: should be same as 6th character.
  • 17th character: should be same as 7th character.
  • 18th character: should be same as 8th character.
  • 19th character: should be same as 9th character.
  • 20th character: should be same as 10th character.


This is a regex only challenge. You are not required to write code.
You have to fill the regex pattern in the blank (_________).

HackerRank Matching Same Text Again & Again Solution in Cpp

HackerRank Matching Same Text Again & Again Solution in Java

public class Solution {    

    public static void main(String[] args) {
        Regex_Test tester = new Regex_Test();
        tester.checker("^([a-z])(\\w)(\\s)(\\W)(\\d)(\\D)([A-Z])([A-Za-z])([aeiouAEIOU])(\\S)\\1\\2\\3\\4\\5\\6\\7\\8\\9\\10$"); // Use \\ instead of using \ 

HackerRank Matching Same Text Again & Again Solution in Python

Regex_Pattern = r'([a-z])(\w)(\s)(\W)(\d)(\D)([A-Z])([A-Za-z])([aeiouAEIOU])(\S)\1\2\3\4\5\6\7\8\9\10'	# Do not delete 'r'.

HackerRank Matching Same Text Again & Again Solution in JavaScript

var Regex_Pattern = /([a-z]{1})(\w{1})(\s{1})(\W{1})(\d{1})(\D{1})([A-Z]{1})([a-zA-Z]{1})([aeiouAEIOU]{1})(\S{1})\1\2\3\4\5\6\7\8\9\10/; //Do not delete '/'. Replace __________ with your regex. 

HackerRank Matching Same Text Again & Again Solution in PHP

$Regex_Pattern = '/([a-z])([\w])([\s])([^\w])([0-9])([^0-9])([A-Z])([a-zA-Z])([aeiouAEIOU])([^\s])\1\2\3\4\5\6\7\8\9\10/'; //Do not delete '/'. Replace __________ with your regex. 

Disclaimer: This problem (Matching Same Text Again & Again) is generated by HackerRank but the solution is provided by Chase2learn. This tutorial is only for Educational and Learning purposes.


1. How do you solve the first question in HackerRank?

If you want to solve the first question of Hackerrank then you have to decide which programing language you want to practice i.e C programming, Cpp Programing, or Java programming then you have to start with the first program HELLO WORLD.

2. How do I find my HackerRank ID?

You will receive an email from HackerRank to confirm your access to the ID. Once you have confirmed your email, the entry will show up as verified on the settings page. You will also have an option to “Make primary”. Click on that option. Read more

3. Does HackerRank detect cheating?

yes, HackerRank uses a powerful tool to detect plagiarism in the candidates’ submitted code. The Test report of a candidate highlights any plagiarized portions in the submitted code and helps evaluators to verify the integrity of answers provided in the Test.

4. Does HackerRank use camera?

No for coding practice Hackerrank does not use camera but for companies’ interviews code submission time Hackerrank uses the camera.

5. Should I put HackerRank certificate on resume?

These certificates are useless, and you should not put them on your resume. The experience you gained from getting them is not useless. Use it to build a portfolio, and link to it on your resume. 

6. Can I retake HackerRank test?

The company which sent you the HackerRank Test invite owns your Test submissions and results. It’s their discretion to permit a reattempt for a particular Test. If you wish to retake the test, we recommend that you contact the concerned recruiter who invited you to the Test and request a re-invite. 

7. What is HackerRank?

HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses. Developers compete by writing programs according to provided specifications. Wikipedia

Finally, we are now, in the end, I just want to conclude some important message for you

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