A comprehensive Java Data Structures & Algorithms (DSA) repository, structured topic-wise for learning, practice, revision, and interview preparation.

This repository contains well-organized Java implementations of core DSA concepts, following a clear progression from basics to advanced topics.

src/
├── _1Array                     → Array problems
├── _2String                    → String problems
├── _3LinkedList              → Linked List (Basics, Methods, PW)
├── _4Stack                   → Stack (Basics & Questions)
├── _5Queue                   → Queue & Deque
├── _6Tree                    → Binary Tree & BST
├── _7Hashing                 → HashSet, HashMap, TreeMap
├── _8Heap                    → Heap (Min/Max Heap & Problems)
├── _9Graph                   → Graph (BFS, DFS, Shortest Paths)
├── _10PrefixSum               → Prefix Sum techniques
├── _11BitManipulation         → Bit Manipulation
├── _12SlidingWindow           → Sliding Window problems
├── _13Searching              → Searching algorithms
├── _14Sorting                → Sorting algorithms & questions
├── _15Greedy                 → Greedy algorithms
├── _16Tries                  → Trie data structure
├── _17SegmentTree            → Segment Tree
├── _18Recursion              → Recursion basics
├── _19BackTracking           → Backtracking questions
├── _20DynamicProgramming     → Dynamic Programming (Memoization & Tabulation)
├── COMPARATOR                → Comparator & Lambda examples

• Arrays & Strings
• Linked List
• Stack & Queue
• Trees (Binary Tree & BST)
• Hashing
• Heap (Priority Queue)
• Graphs (BFS, DFS, Dijkstra, MST, etc.)
• Prefix Sum
• Sliding Window
• Searching & Sorting
• Bit Manipulation
• Recursion & Backtracking
• Greedy Algorithms
• Tries
• Segment Tree
• Dynamic Programming

• Language: Java
• IDE: IntelliJ IDEA
• Version Control: Git & GitHub

• 📌 Build strong DSA fundamentals in Java
• 📌 Prepare for coding interviews (FAANG / Product-based companies)
• 📌 Practice problem-solving patterns
• 📌 Quick revision before interviews

1. Clone the repository:

   git clone https://github.com/anuragtiwari-stacks/JAVA_DSA.git

2. Open in IntelliJ IDEA

3. Navigate topic-wise inside src/

4. Run and modify individual Java files

• ✔ Core DSA topics implemented
• ✔ Searching, Sorting, DP, Graphs covered
• ⏳ Continuous updates with new problems

Contributions are welcome!

• Improve existing solutions
• Add optimized approaches
• Enhance code readability and comments

If you find this repository helpful:

• ⭐ Star the repo
• 🍴 Fork it
• 📢 Share it

Happy Coding & DSA Practice! 💻🔥