🚀 Cracking Leetcode Problems Fast = Recognizing Patterns!

Here’s a DSA patterns cheatsheet to solve 90-95% of interview problems👇

🔹 Graph
→ DFS/BFS traversal
→ Adjacency lists
→ Cycles/shortest paths

🔹 Sliding Window
→ Dynamic window sizing
→ Two pointers
→ Optimize sums/counts

🔹 Linked Lists
→ Two Pointers for cycles/middle
→ Reverse in-place

🔹 Max/Min Subarrays
→ DP for optimal subarrays
→ Running sum + maxi/mini
→ Subproblems

🔹 In-Place Operations
→ Swap without extra space
→ Manage indices

🔹 Top/Least K Elements
→ Heaps or QuickSelect
→ Window of K elements

🔹 Permutations/Subsets
→ Backtracking
→ Prune invalid paths
→ Revert state

🔹 Common String Problems
→ Maps/Tries for search
→ Count frequencies

🔹 No Recursion?
→ Stacks to simulate
→ Track state

🔹 Sorted Arrays
→ Binary Search
→ Two Pointers

🔹 Trees
→ DFS/BFS traversal
→ Handle imbalance

🔹 Other Tips
→ Maps/Sets for O(1) lookups
→ Sorting = O(nlogn)

🌐 Top Free Websites to Learn Programming

Boost your coding skills with these amazing free resources:

✅ inprogrammer
✅ JavaScript.info
✅ The Odin Project
✅ Stack Overflow
✅ GeeksforGeeks
✅ Studytonight
✅ freeCodeCamp
✅ MDN Web Docs
✅ JavaTpoint
✅ Codecademy (free courses)
✅ SoloLearn
✅ Programiz
✅ W3Schools
✅ Tuts+
✅ YouTube (coding channels galore)
✅ Scrimba

Programmer's Flowers 💐

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Whale Cursor 🐋

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Animated Birthday Cake 🎂

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🐍 Python Roadmap for Beginners 2025

├── 🐍 Introduction to Python
├── 📦 Modules, Comments, & Pip
├── 🔢 Variables & Data Basics
├── 📊 Python Data Types in Detail
├── 🔁 Flow Control in Python
├── 🔄 Loops in Python
├── 📝 String Operations (Advanced)
├── 🏗 Functions in Python
├── 📂 File Handling in Python
├── 🏛 OOPs
├── ⚠️ Exception Handling

#techinfo

Top Programming Frameworks on GitHub in 2025 👨🏻‍💻⚙️

🔷 React (234,369 stars)
🚀 Vue.js (208,671 stars)
📊 TensorFlow (~186,000 stars)
🔸 Angular (97,453 stars)
🔗 Django (83,095 stars)
💡 Svelte (82,163 stars)
🐍 Flask (69,300 stars)
⚡ Express.js (66,702 stars)
🦄 Laravel (~57,800 stars)
🛠️ Spring Framework (~57,800 stars)

#techinfo

401 Cow Error Page

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VSCode Windows Shortcuts📝

React ❤️ for more like this

#resources

400+ JS Questions😎📝

Python Quiz will be posted later today👀

React ❤️ for more

#resources

Animated Login Page 🖥

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FREE Sites to Host Backend Code
⚡️ Vercel
⚡️ Netlify Functions
⚡️ Render
⚡️ Fly .io
⚡️ Glitch
⚡️ Cyclic .sh
⚡️ Railway .app
⚡️ Supabase
⚡️ Appwrite
⚡️ Firebase
⚡️ PlanetScale
⚡️ Sanity .io
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⚡️ Stormkit .io
⚡️ Cloudflare Workers
⚡️ Google Cloud Functions

Love Animation Code

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