In this post, we will be covering all the solutions to SQL on the HackerRank platform. HackerRank is a platform for competitive coding. It is very important that you all first give it a try & brainstorm yourselves before having a look at the solutions. Let us code and find answers to our given problems.Installing Survey Solutions. Download the Survey Solutions installer. Run SurveySolutions.exe. It will ask you for two parameters: install location and PostgreSQL connection parameters. For the install location – choose any or keep the default ( C:\Survey Solutions\) 📷 Survey Solutions location.Jun 15, 2021 · Bandit. Bandit is an open-source tool written in Python that helps you analyze your Python code and find common security issues in it. It will be able to scan your Python code, spot the vulnerabilities and exploits such as the ones that were mentioned in the previous section. Bandit can be installed locally or inside your virtual environment ... hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ...Top Competitors. Julia just finished conducting a coding contest, and she needs your help assembling the leaderboard! Write a query to print the respective hacker_id and name of hackers who achieved full scores for more than one challenge. Order your output in descending order by the total number of challenges in which the hacker earned a full ...Get FREE SQL Certification with HackerRank, pass in one attempt.All 5 Questions Solution: https://www.azhark.com/2022/06/05/hackerrank-sql-basic-certificatio...GitHub: Let’s build from here · GitHubNov 3, 2022 · Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. - GitHub - qanhnn12/SQL-Hackerrank-Challenge-Solutions: Solutions for all SQL challenges on HackerRank executed o... Top Competitors. Julia just finished conducting a coding contest, and she needs your help assembling the leaderboard! Write a query to print the respective hacker_id and name of hackers who achieved full scores for more than one challenge. Order your output in descending order by the total number of challenges in which the hacker earned a full ... HackerRank's computing infrastructure is provided by Amazon Web Services, a secure cloud services platform. Amazon’s physical infrastructure has been accredited under ISO 27001, SOC 1/SOC 2/SSAE 16/ISAE 3402, PCI Level 1, FISMA Moderate, and Sarbanes-Oxley. Application Vulnerability AssessmentOne 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. Java HackerRank Solutions. Welcome to Java! – Hacker Rank Solution; Java Stdin and Stdout I – Hacker Rank Solution; Java If-Else – Hacker Rank ...About Us. HackerRank is a technology hiring platform that is the standard for assessing developer skills for over 3,000+ companies around the world. By enabling tech recruiters and hiring managers to objectively evaluate talent at every stage of the recruiting process, HackerRank helps companies hire skilled developers and innovate faster!Top Competitors. Julia just finished conducting a coding contest, and she needs your help assembling the leaderboard! Write a query to print the respective hacker_id and name of hackers who achieved full scores for more than one challenge. Order your output in descending order by the total number of challenges in which the hacker earned a full ...Query the name and abbreviated occupation for each person in OCCUPATIONS.Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Interviews – HackerRank Solution. 15 Days of Learning SQL – HackerRank Solution. Draw the Triangle 1 – HackerRank Solution. Draw The Triangle 2 – HackerRank Solution. Print Prime Numbers – HackerRank Solution. Disclaimer: These problems are generated by HackerRank but the solutions are provided by CodingBroz. Code your solution in our custom editor or code in your own environment and upload your solution as a file. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 6 of 6GitHub - kg-0805/HackerRank-Solutions: This Repository ...Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Discussions. Sort 1336 Discussions, By: recency. Please Login in order to post a comment. nghialntfx20420. 17 hours ago. Try this query if you need a solution for this challenge: SELECT CEIL(AVG(Salary) - AVG(REPLACE(Salary, '0', ''))) FROM EMPLOYEES;I know I can use Else for Leaf but why is this wrong? **SELECT N, CASE WHEN P IS NULL THEN "Root" WHEN N IN (SELECT P FROM BST) THEN "Inner" WHEN N NOT IN (SELECT P FROM BST) THEN "Leaf" END AS Tree FROM BST;Jul 26, 2023 · For information regarding the program timeline, eligibility, and program or registration process, you can reach out to IBM at [email protected]. On this page, we have compiled a list of preparation checklists, a short walkthrough video, and some commonly asked questions with their answers to give you a smooth test-taking experience.. In Cisco Hack to Secure Coding Challenge 2023, you will answer coding and multiple-choice questions. Here is a short video to walk you through the process of taking coding questions on the HackerRank platform. You can take a look at the article Answering Multiple-Choice Questions to understand how to solve MCQs on the HackerRank platform.Optiver hackerrank discussion. I recently applied for optiver new grad role and have an upcoming hackerrank discussion stage, I have no idea what to expect in this round (Apart from the hackerrank discussion). I have scored 💯 in the online hackerrank test and thereby think that the discussion would provide more time to discuss other concepts ...These are the essential principles to grasp for understanding how SSL/TLS works: Secure communication begins with a TLS handshake, in which the two communicating parties open a secure connection and exchange the public key. During the TLS handshake, the two parties generate session keys, and the session keys encrypt and decrypt all ... hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ...In this post, you will find the solution for Exceptional Server in C++-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank . If you are not able to solve any problem, then you can take help from our Blog/website. HackerRank's computing infrastructure is provided by Amazon Web Services, a secure cloud services platform. Amazon’s physical infrastructure has been accredited under ISO 27001, SOC 1/SOC 2/SSAE 16/ISAE 3402, PCI Level 1, FISMA Moderate, and Sarbanes-Oxley. Application Vulnerability AssessmentHackerRank Hotel Prices solution in c++ programming. HackerRank Cpp exception handling solution in c++ programming. HackerRank Rectangle Area solution in c++ programming. HackerRank Multi Level Inheritance solution in c++ programming. HackerRank Overloading Ostream Operator solution in c++ programming.Output one of the following statements for each record in the table: Equilateral: It’s a triangle with 3 sides of equal length. Isosceles: It’s a triangle with 2 sides of equal length. Scalene: It’s a triangle with 3 sides of differing lengths. Not A Triangle: The given values of A , B, and C don’t form a triangle. HackerRank Hotel Prices solution in c++ programming. HackerRank Cpp exception handling solution in c++ programming. HackerRank Rectangle Area solution in c++ programming. HackerRank Multi Level Inheritance solution in c++ programming. HackerRank Overloading Ostream Operator solution in c++ programming.Solved submissions (one per hacker) for the challenge: correct. Your submission score factor (lies between 0 and 1) based on correctness of the submission: sf. Minimum score a challenge can have: 20. Maximum score a challenge can have: 100. We calculate, Success ratio , sr = correct/total.Cisco Hack to Secure is an online contest powered by the HackerRank coding platform. The contest is from March 24, 2023 to March 26, 2023 between 9:00 A.M. to 9:00 P.M. IST . Participants will be challenged to solve three coding problems with varying complexities within a duration of 90 minutes. Participants can join the challenge on any one of ...Merit Rewards. SELECT ei.employee_ID, ei.name FROM employee_information ei JOIN last_quarter_bonus b ON b.employee_ID = ei.employee_ID WHERE ei.division LIKE 'HR' AND b.bonus >= 5000; This is one question solution to the HackerRank SQL Basic Certification problem and this is shared for your increasing knowledge. Here’s GitHub Repo: https ...GitHub - kg-0805/HackerRank-Solutions: This Repository ...Leave a Comment / HackerRank, HackerRank C++ / By CodeBros Today we are going to solve Exceptional Server HackerRank Solution in C++ . Table of Contents Toggle Dec 1, 2022 · Hackerrank SQL Advanced Certification - Crypto Market Algorithms Reporthttps://www.hackerrank.com Sep 15, 2022 · Type of triangle problem of hackerrank SQl Advance select. Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. Output one of the following statements for each record in the table: Equilateral: It's a triangle with sides of equal length. Isosceles: It's a triangle with sides of equal length. hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ...Solution for exception server question from hackerrank.#exceptionalserverhackerranksolution #exceptionalserverhackerranksolutioninc++ #exceptionalserverhacke...Feb 13, 2021 · YASH PAL February 13, 2021 In this HackerRank Exceptional server problem in the c++ programming language, In this challenge, you are required to handle error messages while working with small computational server that performs complex calculations. It has a function that takes 2 large numbers as its input and returns a numeric result. Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. - GitHub - qanhnn12/SQL-Hackerrank-Challenge-Solutions: Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server.Hope y’all enjoyed my long drawn explanation to a simple problem, I’m trying to get better at SQL querying, so if you see any errors or have any suggestions, I am all ears.170+ solutions to Hackerrank.com practice problems using Python 3, С++ and Oracle SQL hackerrank hackerrank-python hackerrank-solutions hackerrank-sql Updated on Aug 1 Python omonimus1 / competitive-programming Sponsor Star 846 Code Issues Pull requests Contest Leaderboard. SELECT hacker_id, name, SUM(max_score) total_score FROM ( SELECT h.hacker_id AS hacker_id, h.name AS name, s.challenge_id, MAX(s.score) AS max_score FROM hackers AS h INNER JOIN submissions AS s ON h.hacker_id = s.hacker_id GROUP BY h.hacker_id, h.name, s.challenge_id ) AS Student_challenges GROUP BY hacker_id, name HAVING ...MSSQL solution: with cte as ( select h.hacker_id,h.name,count (c.challenge_id) as totalc from hackers h inner join challenges c on h.hacker_id=c.hacker_id group by h.hacker_id,h.name ) -- Taking only hacker information who has maximum challenges select * from cte where totalc = (select max (totalc) from cte) -- Taking the hackers whose ...Hope y’all enjoyed my long drawn explanation to a simple problem, I’m trying to get better at SQL querying, so if you see any errors or have any suggestions, I am all ears.Output one of the following statements for each record in the table: Equilateral: It’s a triangle with 3 sides of equal length. Isosceles: It’s a triangle with 2 sides of equal length. Scalene: It’s a triangle with 3 sides of differing lengths. Not A Triangle: The given values of A , B, and C don’t form a triangle.{"payload":{"allShortcutsEnabled":false,"fileTree":{"SQL/Basic Select":{"items":[{"name":"Employee Names.sql","path":"SQL/Basic Select/Employee Names.sql ...Solved submissions (one per hacker) for the challenge: correct. Your submission score factor (lies between 0 and 1) based on correctness of the submission: sf. Minimum score a challenge can have: 20. Maximum score a challenge can have: 100. We calculate, Success ratio , sr = correct/total.hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ...Get FREE SQL Certification with HackerRank, pass in one attempt.All 5 Questions Solution: https://www.azhark.com/2022/06/05/hackerrank-sql-basic-certificatio...HackerRank's computing infrastructure is provided by Amazon Web Services, a secure cloud services platform. Amazon’s physical infrastructure has been accredited under ISO 27001, SOC 1/SOC 2/SSAE 16/ISAE 3402, PCI Level 1, FISMA Moderate, and Sarbanes-Oxley. Application Vulnerability Assessment Top Competitors. Julia just finished conducting a coding contest, and she needs your help assembling the leaderboard! Write a query to print the respective hacker_id and name of hackers who achieved full scores for more than one challenge. Order your output in descending order by the total number of challenges in which the hacker earned a full ...Discussions. Sort 1336 Discussions, By: recency. Please Login in order to post a comment. nghialntfx20420. 17 hours ago. Try this query if you need a solution for this challenge: SELECT CEIL(AVG(Salary) - AVG(REPLACE(Salary, '0', ''))) FROM EMPLOYEES;hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ... Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. the above hole problem statement is given by hackerrank.com but the solution is generated by the codeworld19 authority if any of the query regarding this post or website fill the following contact form thank you.Get FREE SQL Certification with HackerRank, pass in one attempt.All 5 Questions Solution: https://www.azhark.com/2022/06/05/hackerrank-sql-basic-certificatio...As a first step, we can compute the maximum score achieved per hacker and challenge, so that we filter out any other submissions with lower scores. SELECT. h.hacker_id, h.name, s.challenge_id, MAX(score) max_score. FROM. hackers h INNER JOIN submissions s ON h.hacker_id = s.hacker_id. GROUP BY.For information regarding the program timeline, eligibility, and program or registration process, you can reach out to IBM at [email protected]. On this page, we have compiled a list of preparation checklists, a short walkthrough video, and some commonly asked questions with their answers to give you a smooth test-taking experience..Self Balancing Tree. An AVL tree (Georgy Adelson-Velsky and Landis' tree, named after the inventors) is a self-balancing binary search tree. In an AVL tree, the heights of the two child subtrees of any node differ by at most one; if at any time they differ by more than one, rebalancing is done to restore this property.{"payload":{"allShortcutsEnabled":false,"fileTree":{"SQL/3_Aggregation/07_The Blunder":{"items":[{"name":"The blunder.mysql","path":"SQL/3_Aggregation/07_The Blunder ...Jul 19, 2023 · Installing Survey Solutions. Download the Survey Solutions installer. Run SurveySolutions.exe. It will ask you for two parameters: install location and PostgreSQL connection parameters. For the install location – choose any or keep the default ( C:\Survey Solutions\) 📷 Survey Solutions location. Oct 24, 2022 · HackerRank Sql Basic - Merit Rewards solutionhttps://www.hackerrank.com HackerRank Sql Basic - Merit Rewards solutionhttps://www.hackerrank.comA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior.Interviews – HackerRank Solution. 15 Days of Learning SQL – HackerRank Solution. Draw the Triangle 1 – HackerRank Solution. Draw The Triangle 2 – HackerRank Solution. Print Prime Numbers – HackerRank Solution. Disclaimer: These problems are generated by HackerRank but the solutions are provided by CodingBroz. 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. Java HackerRank Solutions. Welcome to Java! – Hacker Rank Solution; Java Stdin and Stdout I – Hacker Rank Solution; Java If-Else – Hacker Rank ... For each test case, print a single line containing whichever message described in the Problem Statement above is appropriate. After all messages have been printed, the locked stub code in your editor prints the server load. These are the essential principles to grasp for understanding how SSL/TLS works: Secure communication begins with a TLS handshake, in which the two communicating parties open a secure connection and exchange the public key. During the TLS handshake, the two parties generate session keys, and the session keys encrypt and decrypt all ...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. Java HackerRank Solutions. Welcome to Java! – Hacker Rank Solution; Java Stdin and Stdout I – Hacker Rank Solution; Java If-Else – Hacker Rank ...Ask Question Asked 3 years ago Modified 1 year, 6 months ago Viewed 6k times 7 I'm solving a problem on HackerRank where I'm required to implement a simple stack. It's passing all the tests except for the last 4 where it fails due to surpassing the time constraint of 10s. These 4 failing tests are running 200,000 operations on the stack.MSSQL solution: with cte as ( select h.hacker_id,h.name,count (c.challenge_id) as totalc from hackers h inner join challenges c on h.hacker_id=c.hacker_id group by h.hacker_id,h.name ) -- Taking only hacker information who has maximum challenges select * from cte where totalc = (select max (totalc) from cte) -- Taking the hackers whose ...Network Security is the protection of the underlying network infrastructure from unauthorized access, misuse, or theft. It involves creating a secure infrastructure for devices, applications, users, and applications to work securely. Network and Routing Protocols / Services - Understanding of the OSI Model, the concepts of electronic data ...In this HackerRank Network administration problem solution For each network transformation in form 3 AB ai ou should output: "No connection" if there is no path between the requested servers considering just the links controlled by ai. "D security devices placed" where D is the number of security devices placed so far on the existing connection ...Dec 1, 2021 · Hackerrank’s “Weather Observation Station 15” question This question is under the SQL Aggregation section and is classified as “Easy” 2 min read · Dec 6, 2021 170+ solutions to Hackerrank.com practice problems using Python 3, С++ and Oracle SQL hackerrank hackerrank-python hackerrank-solutions hackerrank-sql Updated on Aug 1 Python omonimus1 / competitive-programming Sponsor Star 846 Code Issues Pull requestsDiscussions. Sort 1336 Discussions, By: recency. Please Login in order to post a comment. nghialntfx20420. 17 hours ago. Try this query if you need a solution for this challenge: SELECT CEIL(AVG(Salary) - AVG(REPLACE(Salary, '0', ''))) FROM EMPLOYEES; Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.MSSQL solution: with cte as ( select h.hacker_id,h.name,count (c.challenge_id) as totalc from hackers h inner join challenges c on h.hacker_id=c.hacker_id group by h.hacker_id,h.name ) -- Taking only hacker information who has maximum challenges select * from cte where totalc = (select max (totalc) from cte) -- Taking the hackers whose ...For each test case, print a single line containing whichever message described in the Problem Statement above is appropriate. After all messages have been printed, the locked stub code in your editor prints the server load.Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ... Cisco Hack to Secure is an online contest powered by the HackerRank coding platform. The contest is from March 24, 2023 to March 26, 2023 between 9:00 A.M. to 9:00 P.M. IST . Participants will be challenged to solve three coding problems with varying complexities within a duration of 90 minutes. Participants can join the challenge on any one of ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"SQL/Basic Select":{"items":[{"name":"Employee Names.sql","path":"SQL/Basic Select/Employee Names.sql ... 170+ solutions to Hackerrank.com practice problems using Python 3, С++ and Oracle SQL hackerrank hackerrank-python hackerrank-solutions hackerrank-sql Updated on Aug 1 Python omonimus1 / competitive-programming Sponsor Star 846 Code Issues Pull requests
16980. 99989. Joe. 9. 3573. 32157. The maximum earnings value is 69952. The only employee with earnings = 69952 is Kimberly, so we print the maximum earnings value ( 69952) and a count of the number of employees who have earned $69952 (which is 1) as two space-separated values. . Womens cargo pants handm
YASH PAL February 13, 2021 In this HackerRank Exceptional server problem in the c++ programming language, In this challenge, you are required to handle error messages while working with small computational server that performs complex calculations. It has a function that takes 2 large numbers as its input and returns a numeric result.Nov 3, 2022 · Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. - GitHub - qanhnn12/SQL-Hackerrank-Challenge-Solutions: Solutions for all SQL challenges on HackerRank executed o... Hackerrank Coding Questions for Practice. Below you can find the Top 25 Hackerrank based coding questions with solutions for the Hackerrank Coding test. in this article we have collected the most asked and most important Hackerrank coding questions that you need to prepare to successfully crack Hackerrank coding round for companies like IBM, Goldman Sachs, Cisco, Mountblu, Cognizant, etc.In this post, you will find the solution for Exceptional Server in C++-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank . If you are not able to solve any problem, then you can take help from our Blog/website. Bandit. Bandit is an open-source tool written in Python that helps you analyze your Python code and find common security issues in it. It will be able to scan your Python code, spot the vulnerabilities and exploits such as the ones that were mentioned in the previous section. Bandit can be installed locally or inside your virtual environment ...This video contains solution to HackerRank "Exceptional Server" problem. But remember...before looking at the solution you need to try the problem once for b...GitHub - kg-0805/HackerRank-Solutions: This Repository ...Here is my solution to the problem: WITH CTE_VIEW AS ( SELECT CHALLENGE_ID, SUM(TOTAL_VIEWS) AS SUM_TV, SUM(TOTAL_UNIQUE_VIEWS) AS SUM_TUV FROM VIEW_STATS GROUP BY 1) , CTE_SUB AS ( SELECT CHALLENGE_ID, SUM(TOTAL_SUBMISSIONS) AS SUM_TS, SUM(TOTAL_ACCEPTED_SUBMISSIONS) AS SUM_TAS FROM SUBMISSION_STATS GROUP BY 1) , CTE_CONTEST AS ( SELECT CT ...Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.Feb 10, 2023 · Cisco Hack to Secure is an online contest powered by the HackerRank coding platform. The contest is from March 24, 2023 to March 26, 2023 between 9:00 A.M. to 9:00 P.M. IST . Participants will be challenged to solve three coding problems with varying complexities within a duration of 90 minutes. Participants can join the challenge on any one of ... Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.Top Competitors. Julia just finished conducting a coding contest, and she needs your help assembling the leaderboard! Write a query to print the respective hacker_id and name of hackers who achieved full scores for more than one challenge. Order your output in descending order by the total number of challenges in which the hacker earned a full ... Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Optiver hackerrank discussion. I recently applied for optiver new grad role and have an upcoming hackerrank discussion stage, I have no idea what to expect in this round (Apart from the hackerrank discussion). I have scored 💯 in the online hackerrank test and thereby think that the discussion would provide more time to discuss other concepts ...case when Occupation="Singer" then Name end as Singer, case when Occupation="Actor" then Name end as Actor from OCCUPATIONS order by Name. ) Temp group by RowNumber; Disclaimer: The above Problem ( Occupations) is generated by Hacker Rank but the Solution is Provided by CodingBroz. This tutorial is only for Educational and Learning Purpose. hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ...Contest Leaderboard. SELECT hacker_id, name, SUM(max_score) total_score FROM ( SELECT h.hacker_id AS hacker_id, h.name AS name, s.challenge_id, MAX(s.score) AS max_score FROM hackers AS h INNER JOIN submissions AS s ON h.hacker_id = s.hacker_id GROUP BY h.hacker_id, h.name, s.challenge_id ) AS Student_challenges GROUP BY hacker_id, name HAVING ... Below are my solutions to all Medium SQL challenges on HackerRank. 1) The PADS. Question¶ Solution¶ MySQL / MS SQL Server. Output ...Feb 21, 2023 · As a first step, we can compute the maximum score achieved per hacker and challenge, so that we filter out any other submissions with lower scores. SELECT. h.hacker_id, h.name, s.challenge_id, MAX(score) max_score. FROM. hackers h INNER JOIN submissions s ON h.hacker_id = s.hacker_id. GROUP BY. 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. Java HackerRank Solutions. Welcome to Java! – Hacker Rank Solution; Java Stdin and Stdout I – Hacker Rank Solution; Java If-Else – Hacker Rank ...hackerrank-solutions. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python ... .