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codedecks-in / HackerRank-Solutions

This project include solutions of the problem from HackerRank which will be helpful for coding interview preparations. Subscribe for more updates 👇

python java competition algorithm algorithms solutions competitive-programming hackerrank hacktoberfest competitive-programming-contests hackerrank-solutions hackerrank-java hackerrank-algorithms-solutions competitive-coding codedecks interview-preparations hacketoberfest2020 hacktoberfest-accepted coding-interview-preparations

Updated Dec 5, 2023
Java

MOHITGODARA1 / leetcore

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Leetcore - Open-source placement preparation platform with DSA Roadmaps, CS Core, Interview Preparation, and Coding Practice.

Updated Aug 12, 2026
JavaScript

rishabhsisodiya / trialrun-ai

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Mock technical interviews that run on the Claude Code plan you already have. No API key. Karat-style, AI-agent and custom rounds, with a scored report and answer sheet.

coding-interviews interview-preparation coding-interview mock-interview interview-preparations interview-preparation-questions ai-insights ai-interview mock-interview-platform mock-interview-fullstack ai-interview-assistant

Updated Oct 13, 2026
TypeScript

keshav-07 / data-engineering-interview-questions

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Curated Data Engineering interview questions with worked answers: SQL, PySpark, Spark, Kafka, Airflow, Snowflake, Databricks, Delta Lake, AWS, system design and DSA.

airflow sql database kafka apache-spark snowflake pyspark data-engineering interview-questions datawarehouse databricks interview-preparation interview-preparation-kit interview-preparation-resources interview-preparations

Updated Oct 22, 2026

ualiurrahat / hackerrank-6-star-badge-challenge

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Solving 100 HackerRank problems in 30 days to earn the 6-star badge — C++ solutions with approach notes, complexity analysis, and edge cases explained for interview prep.

competitive-programming hackerrank problem-solving hackerrank-solutions dsa coding-interview hackerrank-challenges data-structures-and-algorithms cpp-solutions 30-days-challenge interview-preparations 6-star-badge

Updated Jul 16, 2026
C++

Vikas6543 / JavaScript_Interview_Questions

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javascript interview coding-challenges interview-preparation data-structures-and-algorithms logical-reasoning interview-preparations

Updated May 21, 2024
JavaScript

Jamshed7664 / data-structures-interview-questions-and-answers

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Top 250 Data Structures Interview Questions and Answers (2026) with Java Examples, Diagrams, Time Complexity, Arrays, Linked Lists, Trees, Graphs, Heaps, Hashing and Advanced DSA.

Updated Oct 16, 2026

0not0 / sql_leetcode

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Leetcode SQL questions for the interview preparations

sql database leetcode postgresql interview interview-practice interview-preparations

Updated Apr 17, 2025

salari-dev / react-native-interview-questions-sample

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Free sample of "Top 300 React Native Interview Questions and Answers" by Mike Salari: one complete senior answer, a weak vs strong comparison, desktop and phone PDFs.