CS CORNER Sunita Rai
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All study material AND coding related stuffs 🎁

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Group Link: telegram.me/cscorner
Discussion Link: telegram.me/cscornersunitarai

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5 Programming websites you probably don’t know about πŸ‘‡

1/ Responsively App:
Test your website on multiple screen sizes at once, perfect for responsive design debugging.
https://responsively.app/

2/ DevDocs:
All documentation in one place with lightning-fast search, works offline and saves huge time while coding.
https://devdocs.io/

3/ UI Verse:
Ready-to-use UI components like buttons, loaders, cards with clean CSS you can directly copy.
https://uiverse.io/

4/ JSON Crack:
Visualizes JSON data into interactive graphs, making complex data structures easy to understand instantly.
https://jsoncrack.com/

5/ HTTPie:
User-friendly API testing tool with clean UI, easier than traditional tools for beginners.
https://httpie.io/app
🐍 *Python for Everything β€” Why It Still Wins in Tech*

Python isn’t just popularβ€”it grows with your career. From data analysis to AI, automation to GenAI, it’s everywhere.

πŸ”Ή *Data* : Pandas, NumPy

πŸ”Ή *Visualization* : Matplotlib, Plotly

πŸ”Ή *ML/AI* : Scikit-learn, TensorFlow, PyTorch

πŸ”Ή *GenAI* : OpenAI, Hugging Face

πŸ”Ή *Big Data* : PySpark, Dask

πŸ”Ή *Automation* : Selenium, Scrapy

πŸ’‘ *Key Insight* :
Don’t try to learn everything.
β€’ Master core Python
β€’ Go deep in one domain
β€’ Stay aware of others

πŸ‘‰ Depth + adaptability > tool hoarding
πŸ₯°1
Master DSA πŸš€

DSA MASTER TREE
β”‚
β”œβ”€β”€ 1. Foundations
β”‚ β”œβ”€β”€ What is Data Structure
β”‚ β”œβ”€β”€ What is Algorithm
β”‚ β”œβ”€β”€ Time Complexity
β”‚ β”‚ β”œβ”€β”€ Big-O
β”‚ β”‚ β”œβ”€β”€ Big-Ξ©
β”‚ β”‚ └── Big-Θ
β”‚ β”œβ”€β”€ Space Complexity
β”‚ └── Recurrence Relations
β”‚
β”œβ”€β”€ 2. Mathematical Basics
β”‚ β”œβ”€β”€ Logarithms
β”‚ β”œβ”€β”€ Modular Arithmetic
β”‚ β”œβ”€β”€ Prime Numbers
β”‚ β”œβ”€β”€ GCD / LCM
β”‚ └── Sieve of Eratosthenes
β”‚
β”œβ”€β”€ 3. Arrays
β”‚ β”œβ”€β”€ Traversal
β”‚ β”œβ”€β”€ Searching
β”‚ β”‚ β”œβ”€β”€ Linear Search
β”‚ β”‚ └── Binary Search
β”‚ β”œβ”€β”€ Prefix Sum
β”‚ β”œβ”€β”€ Sliding Window
β”‚ β”œβ”€β”€ Two Pointers
β”‚ β”œβ”€β”€ Kadane’s Algorithm
β”‚ └── Matrix / 2D Arrays
β”‚
β”œβ”€β”€ 4. Strings
β”‚ β”œβ”€β”€ String Manipulation
β”‚ β”œβ”€β”€ Pattern Matching
β”‚ β”‚ β”œβ”€β”€ Naive
β”‚ β”‚ β”œβ”€β”€ KMP
β”‚ β”‚ β”œβ”€β”€ Rabin-Karp
β”‚ β”‚ └── Z Algorithm
β”‚ β”œβ”€β”€ Palindrome Problems
β”‚ β”œβ”€β”€ String Hashing
β”‚ └── Trie
β”‚
β”œβ”€β”€ 5. Linked Lists
β”‚ β”œβ”€β”€ Singly Linked List
β”‚ β”œβ”€β”€ Doubly Linked List
β”‚ β”œβ”€β”€ Circular Linked List
β”‚ β”œβ”€β”€ Reverse Linked List
β”‚ β”œβ”€β”€ Cycle Detection (Floyd)
β”‚ └── Merge Lists
β”‚
β”œβ”€β”€ 6. Stack
β”‚ β”œβ”€β”€ Stack Implementation
β”‚ β”œβ”€β”€ Balanced Parentheses
β”‚ β”œβ”€β”€ Next Greater Element
β”‚ β”œβ”€β”€ Monotonic Stack
β”‚ └── Min Stack
β”‚
β”œβ”€β”€ 7. Queue
β”‚ β”œβ”€β”€ Queue Implementation
β”‚ β”œβ”€β”€ Circular Queue
β”‚ β”œβ”€β”€ Deque
β”‚ β”œβ”€β”€ Priority Queue
β”‚ └── Monotonic Queue
β”‚
β”œβ”€β”€ 8. Hashing
β”‚ β”œβ”€β”€ Hash Tables
β”‚ β”œβ”€β”€ Collision Handling
β”‚ β”‚ β”œβ”€β”€ Chaining
β”‚ β”‚ └── Open Addressing
β”‚ β”œβ”€β”€ Load Factor
β”‚ └── Rehashing
β”‚
β”œβ”€β”€ 9. Trees
β”‚ β”œβ”€β”€ Binary Tree
β”‚ β”‚ β”œβ”€β”€ Traversals
β”‚ β”‚ β”‚ β”œβ”€β”€ Inorder
β”‚ β”‚ β”‚ β”œβ”€β”€ Preorder
β”‚ β”‚ β”‚ └── Postorder
β”‚ β”‚ β”œβ”€β”€ Height / Depth
β”‚ β”‚ └── Diameter
β”‚ β”œβ”€β”€ Binary Search Tree
β”‚ β”œβ”€β”€ AVL Tree
β”‚ β”œβ”€β”€ Red-Black Tree
β”‚ β”œβ”€β”€ Segment Tree
β”‚ β”œβ”€β”€ Fenwick Tree
β”‚ └── Heap
β”‚ β”œβ”€β”€ Min Heap
β”‚ └── Max Heap
β”‚
β”œβ”€β”€ 10. Graphs
β”‚ β”œβ”€β”€ Graph Representation
β”‚ β”‚ β”œβ”€β”€ Adjacency Matrix
β”‚ β”‚ └── Adjacency List
β”‚ β”œβ”€β”€ BFS
β”‚ β”œβ”€β”€ DFS
β”‚ β”œβ”€β”€ Topological Sort
β”‚ β”œβ”€β”€ Cycle Detection
β”‚ β”œβ”€β”€ Shortest Path
β”‚ β”‚ β”œβ”€β”€ Dijkstra
β”‚ β”‚ β”œβ”€β”€ Bellman-Ford
β”‚ β”‚ └── Floyd-Warshall
β”‚ β”œβ”€β”€ Minimum Spanning Tree
β”‚ β”‚ β”œβ”€β”€ Kruskal
β”‚ β”‚ └── Prim
β”‚ └── Disjoint Set (Union-Find)
β”‚
β”œβ”€β”€ 11. Recursion & Backtracking
β”‚ β”œβ”€β”€ Recursion Basics
β”‚ β”œβ”€β”€ Subsets
β”‚ β”œβ”€β”€ Permutations
β”‚ β”œβ”€β”€ N-Queens
β”‚ └── Sudoku Solver
β”‚
β”œβ”€β”€ 12. Greedy Algorithms
β”‚ β”œβ”€β”€ Activity Selection
β”‚ β”œβ”€β”€ Huffman Coding
β”‚ β”œβ”€β”€ Fractional Knapsack
β”‚ └── Job Scheduling
β”‚
β”œβ”€β”€ 13. Dynamic Programming
β”‚ β”œβ”€β”€ Memoization
β”‚ β”œβ”€β”€ Tabulation
β”‚ β”œβ”€β”€ 1D DP
β”‚ β”œβ”€β”€ 2D DP
β”‚ β”œβ”€β”€ Knapsack Variants
β”‚ β”œβ”€β”€ Longest Common Subsequence
β”‚ β”œβ”€β”€ Longest Increasing Subsequence
β”‚ └── Matrix Chain Multiplication
β”‚
β”œβ”€β”€ 14. Bit Manipulation
β”‚ β”œβ”€β”€ Bitwise Operators
β”‚ β”œβ”€β”€ Set / Clear Bits
β”‚ β”œβ”€β”€ Count Set Bits
β”‚ └── XOR Tricks
β”‚
β”œβ”€β”€ 15. Advanced DSA
β”‚ β”œβ”€β”€ Sparse Table
β”‚ β”œβ”€β”€ Heavy-Light Decomposition
β”‚ β”œβ”€β”€ Treap
β”‚ β”œβ”€β”€ Splay Tree
β”‚ └── Skip List
β”‚
└── 16. Interview Patterns
β”œβ”€β”€ Two Pointer Pattern
β”œβ”€β”€ Sliding Window Pattern
β”œβ”€β”€ Binary Search Pattern
β”œβ”€β”€ BFS / DFS Pattern
β”œβ”€β”€ Greedy Choice Pattern
└── DP Pattern Recognition
❀3
Read β€œβš‘ Stop Coding Like It’s 2020 β€” These 7 AI Skills Will Decide Your Futureβ€œ by Sunita Rai on Medium: https://medium.com/@sunita.rai_5226/stop-coding-like-its-2020-these-7-ai-skills-will-decide-your-future-b8b901cf86c3
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