# Hackerrank Candidates Knowledge Base ## Test ### Getting Started - [Introduction to HackerRank Tests](https://candidatesupport.hackerrank.com/articles/9881337709-getting-familiar-with-hackerrank-tests) - [Execution Environment](https://candidatesupport.hackerrank.com/articles/2201684846-execution-environment) - [Question Types in HackerRank Tests](https://candidatesupport.hackerrank.com/articles/9586502651-question-types-in-hackerrank) - [Supported Programming Languages](https://candidatesupport.hackerrank.com/articles/2200226909-supported-programming-languages) - [Browser Recommendations for HackerRank Tests](https://candidatesupport.hackerrank.com/articles/3310749702-browser-recommendations-for-hackerrank-tests) - [Attempting Tests using HackerRank Desktop App](https://candidatesupport.hackerrank.com/articles/5105545533-attempting-tests-using-hackerrank-desktop-app) - [AI Assistant in Tests](https://candidatesupport.hackerrank.com/articles/7634558376-ai-assistant-in-tests) - [Test Integrity and Plagiarism Detection](https://candidatesupport.hackerrank.com/articles/9579706989-malpractices-in-tests) - [Best Practices for Receiving HackerRank Emails](https://candidatesupport.hackerrank.com/articles/8417808585-best-practices-for-receiving-hackerrank-emails) - [Troubleshooting Test Login Errors](https://candidatesupport.hackerrank.com/articles/2573735554-test-login-errors) - [Sample Problem Statement & Solutions](https://candidatesupport.hackerrank.com/articles/4671005102-sample-problem-statement-solutions) - [Introduction to HackerRank Community](https://candidatesupport.hackerrank.com/articles/1527035880-introduction-to-hackerrank-s-coding-community) ### During - [Answering Prompt Engineering Questions](https://candidatesupport.hackerrank.com/articles/9597805344-answering-prompt-engineering-questions) - [Answer Cloud Questions](https://candidatesupport.hackerrank.com/articles/3281902930-answering-aws-questions) - [Answer DevOps Questions](https://candidatesupport.hackerrank.com/articles/5106204040-answer-devops-questions) - [Answer Coding Questions](https://candidatesupport.hackerrank.com/articles/9623161883-answer-coding-questions) - [Answer Multiple-choice Questions](https://candidatesupport.hackerrank.com/articles/3904571125-answer-multiple-choice-questions) - [Answer Subjective Question](https://candidatesupport.hackerrank.com/articles/6005503805-answering-subjective-questions) - [Answer File Upload Questions](https://candidatesupport.hackerrank.com/articles/9653183164-answering-file-upload-type-questions) - [Answer Sentence Completion Questions](https://candidatesupport.hackerrank.com/articles/8169508319-answering-sentence-completion-questions) - [Answer Database Programming Questions](https://candidatesupport.hackerrank.com/articles/9680920868-answer-database-programming-questions) - [Answer Data Science Questions](https://candidatesupport.hackerrank.com/articles/8119048607-answering-data-science-questions) - [Answering Diagram Questions](https://candidatesupport.hackerrank.com/articles/1784755184-answering-diagram-questions) - [Answering HTML/CSS/JavaScript based Questions](https://candidatesupport.hackerrank.com/articles/6693652955-answering-html-css-javascript-based-questions) - [Answer Front-end, Back-end, Full-stack, Mobile Developer, and Generative AI Assessments](https://candidatesupport.hackerrank.com/articles/8606305957-taking-front-end-back-end-full-stack-and-mobile-developer-assessments) - [Cookie Settings for HTML/CSS/JavaScript and Projects Questions](https://candidatesupport.hackerrank.com/articles/3961812303-cookie-settings-for-html-css-javascript-and-projects-questions) - [Using Code Auto-Complete](https://candidatesupport.hackerrank.com/articles/5333090786-using-code-auto-complete) - [Test Cases in your Coding Question](https://candidatesupport.hackerrank.com/articles/6642031123-test-cases-in-your-coding-question) - [Sample Test Cases](https://candidatesupport.hackerrank.com/articles/1258064241-sample-test-cases) - [Hidden Test Cases](https://candidatesupport.hackerrank.com/articles/6052652546-hidden-test-cases) - [Custom Input Values Format](https://candidatesupport.hackerrank.com/articles/5966509302-custom-input-values-format) - [Failed test cases or “Wrong answer” status](https://candidatesupport.hackerrank.com/articles/9080216250-failed-test-cases-or-wrong-answer-status) - [Debugging a Complete Program](https://candidatesupport.hackerrank.com/articles/1404575144-debugging-a-complete-program) - [Debug Using Custom Input Values](https://candidatesupport.hackerrank.com/articles/2715283041-debug-using-custom-input-values) - [Debugging the Logic in Functions (Code-Stubs)](https://candidatesupport.hackerrank.com/articles/2149732827-debugging-the-logic-in-functions-code-stubs) - [Modifying the Answers in a Test](https://candidatesupport.hackerrank.com/articles/8640369776-modifying-the-answers-in-a-test) - [Modifying the Answer Submissions in a Test](https://candidatesupport.hackerrank.com/articles/9597312641-modifying-the-answer-submissions-in-a-test) - [Modifying the Code Submissions in a Test](https://candidatesupport.hackerrank.com/articles/5994519354-modifying-the-code-submissions-in-a-test) - [Evaluation of a Question During Test Time-Out](https://candidatesupport.hackerrank.com/articles/3576626591-evaluation-of-a-question-during-test-time-out) - [Terminated Due to Timeout status](https://candidatesupport.hackerrank.com/articles/4495712051-terminated-due-to-timeout-status) - [Using STDIN for inputs and STDOUT for outputs](https://candidatesupport.hackerrank.com/articles/8758620864-using-stdin-for-inputs-and-stdout-for-outputs) - [Writing State Information to a File](https://candidatesupport.hackerrank.com/articles/9415657673-writing-state-information-to-a-file) - [Sample Problem Statement](https://candidatesupport.hackerrank.com/articles/2056952066-sample-problem-statement) - [Debug in Projects and Code Repositories ](https://candidatesupport.hackerrank.com/articles/2607395746-debugging-in-projects-and-code-repositories) - [Answer Whiteboard Question](https://candidatesupport.hackerrank.com/articles/8261786061-answer-whiteboard-question) ### After - [Evaluation Method of Coding Questions](https://candidatesupport.hackerrank.com/articles/4513323466-evaluation-method-of-coding-questions) - [Evaluation Methods of your HackerRank Tests](https://candidatesupport.hackerrank.com/articles/3563234324-evaluation-methods-of-your-hackerrank-tests) - [Retaking a Test](https://candidatesupport.hackerrank.com/articles/7951526053-retaking-a-test) - [Results of your HackerRank Tests](https://candidatesupport.hackerrank.com/articles/1596800567-results-of-your-hackerrank-tests) ## Interview ### Getting Started - [Introduction to HackerRank Interviews](https://candidatesupport.hackerrank.com/articles/1952658165-logging-into-hackerrank-interview) - [Interview Preparation Checklist for Candidates](https://candidatesupport.hackerrank.com/articles/6865301029-interview-preparation-checklist-for-candidates) - [Browser Recommendations for HackerRank Interviews](https://candidatesupport.hackerrank.com/articles/8455316478-browser-recommendations-for-hackerrank-interviews) - [Select Audio and Video Devices in Interviews](https://candidatesupport.hackerrank.com/articles/5735983307-select-audio-and-video-devices-in-interviews) - [Supported Programming Languages](https://candidatesupport.hackerrank.com/articles/5175379223-supported-programming-languages) - [AI Assistant in Interviews](https://candidatesupport.hackerrank.com/articles/6665907643-ai-assistant-in-interviews) ### During - [Front-end, Back-end, Full-stack, and Mobile Developer Interviews](https://candidatesupport.hackerrank.com/articles/2350269693-front-end-back-end-full-stack-and-mobile-developer-interviews) - [Set up IntelliJ IDEA Keybindings in HackerRank IDE](https://candidatesupport.hackerrank.com/articles/8636764984-set-up-intellij-idea-keybindings-in-hackerrank-ide) - [Understanding the HackerRank Interview Interface](https://candidatesupport.hackerrank.com/articles/6978282920-understanding-the-hackerrank-interview-interface) - [Using STDIN for Inputs and STDOUT for Outputs](https://candidatesupport.hackerrank.com/articles/1522102000-using-stdin-for-inputs-and-stdout-for-outputs) - [Hidden Test Cases](https://candidatesupport.hackerrank.com/articles/9795808760-hidden-test-cases) - [Sample Test Cases](https://candidatesupport.hackerrank.com/articles/4064766467-sample-test-cases) - [Test Cases in your Coding Question](https://candidatesupport.hackerrank.com/articles/7242322364-test-cases-in-your-coding-question) - [Failed test cases or “Wrong answer” status](https://candidatesupport.hackerrank.com/articles/4491518334-failed-test-cases-or-wrong-answer-status) ### After - [Evaluation Method of HackerRank Interviews](https://candidatesupport.hackerrank.com/articles/7214600984-evaluation-method-of-hackerrank-interviews) - [Results of your HackerRank Interviews](https://candidatesupport.hackerrank.com/articles/9461082858-results-of-your-hackerrank-interviews) ## Chakra - [Interview with Chakra](https://candidatesupport.hackerrank.com/articles/4278399240-interview-with-chakra) - [Attempting Chakra using the HackerRank Desktop App](https://candidatesupport.hackerrank.com/articles/7841434572-attempting-chakra-using-the-hackerrank-desktop-app) ## Code Compile and Debugging ### Code Compile and Debugging - [Debugging the logic in functions (code-stubs)](https://candidatesupport.hackerrank.com/articles/3442153049-debugging-the-logic-in-functions-code-stubs) - [Custom input values format](https://candidatesupport.hackerrank.com/articles/4344591639-custom-input-values-format) - [Sample test cases](https://candidatesupport.hackerrank.com/articles/4027374881-sample-test-cases) ## Test Submissions ## Additional Resources - [Contact HackerRank Support](https://candidatesupport.hackerrank.com/articles/7734678532-contacting-hackerrank-support) ### FAQ - [General FAQs](https://candidatesupport.hackerrank.com/articles/7634838075-general-faqs) #### Test - [Frequently Asked Questions Before the Test](https://candidatesupport.hackerrank.com/articles/6145743949-frequently-asked-questions-before-the-test) - [Frequently Asked Questions During the Test](https://candidatesupport.hackerrank.com/articles/2859650598-frequently-asked-questions-during-the-test) - [Frequently Asked Questions After the Test](https://candidatesupport.hackerrank.com/articles/3866187378-frequently-asked-questions-after-the-test) - [Front-end, Back-end, and Full-stack Assessment FAQs](https://candidatesupport.hackerrank.com/articles/5166006679-front-end-back-end-full-stack-assessments-faqs) #### Interview - [Frequently Asked Questions on HackerRank Interviews](https://candidatesupport.hackerrank.com/articles/6184013922-frequently-asked-questions-on-hackerrank-interviews) #### Event Support - [FAQs for Campus Hiring](https://candidatesupport.hackerrank.com/articles/3364125501-faqs-for-campus-hiring) #### Accommodation - [HackerRank's Approach to Accessibility](https://candidatesupport.hackerrank.com/articles/3057255383-hackerrank-s-approach-to-accessibility) ### Videos #### Tutorial Videos - [Getting Started with HackerRank Tests](https://candidatesupport.hackerrank.com/articles/3814607667-getting-started-with-hackerrank-tests) - [HackerRank Interview Video](https://candidatesupport.hackerrank.com/articles/6255162295-getting-started-with-hackerrank-interviews)