HackerRank Capturing & Non-Capturing Groups Solution

Hello Programmers, In this post, you will learn how to solve HackerRank Capturing & Non-Capturing Groups 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 Capturing & Non-Capturing Groups Solution
HackerRank Capturing & Non-Capturing Groups 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 Capturing & Non-Capturing Groups Solution

()
Parenthesis ( ) around a regular expression can group that part of regex together. This allows us to apply different quantifiers to that group.

These parenthesis also create a numbered capturing. It stores the part of string matched by the part of regex inside parentheses.

These numbered capturing can be used for backreferences. ( We shall learn about it later )

(?: )
(?: ) can be used to create a non-capturing group. It is useful if we do not need the group to capture its match.

Task

You have a test String S.
Your task is to write a regex which will match S with the following condition:

  • S should have 3 or more consecutive repetitions of ok.

Note

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

HackerRank Capturing & Non-Capturing Groups Solution in Cpp

HackerRank Capturing & Non-Capturing Groups Solution in Java

public class Solution {    

    public static void main(String[] args) {
        
        Regex_Test tester = new Regex_Test();
        tester.checker("((?:ok){3,})");
    }
}

HackerRank Capturing & Non-Capturing Groups Solution in Python

Regex_Pattern = r'(ok){3,}'   # Do not delete 'r'.

HackerRank Capturing & Non-Capturing Groups Solution in JavaScript

var Regex_Pattern = /(?:ok){3}/; //Do not delete '/'. Replace __________ with your regex. 

HackerRank Capturing & Non-Capturing Groups Solution in PHP

$Regex_Pattern = "/(ok){3,}/"; //Do not delete '/'. Replace __________ with your regex. 

Disclaimer: This problem (Capturing & Non-Capturing Groups) is generated by HackerRank but the solution is provided by Chase2learn. This tutorial is only for Educational and Learning purposes.

FAQ:

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


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