Available now! Telegram Research 2025 โ the year's key insights 
Coding Free Books | Python | AI
Open in Telegram
Best Channel for Programmers and Hackers All in one channel to learn ๐ 1. Python 2. Ethical Hacking 3. Java 4. App development 5. Machine learning 6. Data structures 7. Algorithms Promotions: @coderfun
Show more๐ Analytical overview of Telegram channel Coding Free Books | Python | AI
Channel Coding Free Books | Python | AI (@codingwithsagar) in the English language segment is an active participant. Currently, the community unites 30 847 subscribers, ranking 6 232 in the Education category and 13 394 in the India region.
๐ Audience metrics and dynamics
Since its creation on ะฝะตะฒัะดะพะผะพ, the project has demonstrated rapid growth, gathering an audience of 30 847 subscribers.
According to the latest data from 25 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 64 over the last 30 days and by -14 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 4.75%. Within the first 24 hours after publication, content typically collects 1.13% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 466 views. Within the first day, a publication typically gains 350 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 8.
- Thematic interests: Content is focused on key topics such as learning, link:-, css, algorithm, sql.
๐ Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
โBest Channel for Programmers and Hackers
All in one channel to learn
๐
1. Python
2. Ethical Hacking
3. Java
4. App development
5. Machine learning
6. Data structures
7. Algorithms
Promotions: @coderfunโ
Thanks to the high frequency of updates (latest data received on 26 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Education category.
30 847
Subscribers
-1424 hours
-507 days
+6430 days
Data loading in progress...
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Channel Posts
| 2 | Maczo Pet Monster Game
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| 4 | ๐ป Software Engineer Roadmap ๐
๐ Computer Fundamentals
โ๐ Operating Systems (Processes, Threads, Memory, Scheduling)
โ๐ Networking Basics (HTTP/HTTPS, TCP/IP, DNS, APIs)
โ๐ DBMS (SQL, Indexing, Normalization, Transactions)
โ๐ Git & Version Control (GitHub workflow)
๐ Programming Fundamentals
โ๐ Language (Python / JavaScript / Java / C++)
โ๐ Variables, Loops, Functions
โ๐ OOP (Class, Object, Inheritance, Polymorphism)
โ๐ Error Handling & Debugging
๐ Data Structures & Algorithms
โ๐ Arrays, Strings, HashMap
โ๐ Stack, Queue, Linked List
โ๐ Trees, Graphs (Basics)
โ๐ Recursion & Backtracking
โ๐ Patterns (Sliding Window, Two Pointers, Binary Search, DFS/BFS)
โ๐ Dynamic Programming (Basic)
๐ Development (Choose One Path)
โ๐ Web Development ๐
โโ Frontend (HTML, CSS, JavaScript, React)
โโ Backend (Node.js / Django / FastAPI)
โโ Database (MongoDB / PostgreSQL)
โโ REST APIs + Authentication
โ๐ Backend / Systems โ๏ธ
โโ APIs & Microservices
โโ Databases (SQL + NoSQL)
โโ Caching (Redis)
โโ Message Queues (Kafka/RabbitMQ Basics)
โ๐ AI / Data ๐ค
โโ Python (NumPy, Pandas)
โโ Machine Learning Basics
โโ APIs + AI Integration
โโ LLMs / RAG / AI Apps
๐ Tools & Development Skills
โ๐ Git & GitHub
โ๐ Linux Basics
โ๐ VS Code / IDE
โ๐ Postman (API Testing)
โ๐ Docker (Basics)
๐ System Design (Basics โ Advanced)
โ๐ Scalability (Load Balancing, Caching)
โ๐ Database Design
โ๐ API Design
โ๐ Real-world Systems (URL Shortener, Chat App)
๐ Projects (Very Important ๐ฅ)
โ๐ Beginner (Calculator, CLI Apps)
โ๐ Intermediate (CRUD App, Auth System)
โ๐ Advanced (Full Stack App / SaaS / AI Tool)
โ๐ Deploy Projects (Vercel / AWS / Render)
๐ Interview Preparation
โ๐ DSA Practice (LeetCode)
โ๐ Core Subjects Revision (OS, DBMS, CN)
โ๐ Mock Interviews
๐ Portfolio & Resume
โ๐ GitHub Projects
โ๐ Personal Portfolio Website
โ๐ Strong Resume (Project-focused)
๐ Job Preparation
โ๐ Apply Daily (Internships + Jobs)
โ๐ Cold DM + Networking
โ๐ Build Online Presence (LinkedIn / Instagram)
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| 7 | There's a floating-point number in Python and you need to output it as a percentage - use the % format in the f-string
x = .023
print(f'{x:.2%}')ย # 2.30%
x = .02375
print(f'{x:.2%}')ย # 2.38% -- rounded off!
x = 1.02375
print(f'{x:.2%}')ย # 102.38%
๐ @PythonRe | 1 715 |
| 8 | โ
Step-by-Step Approach to Learn Programming ๐ป๐
โ Pick a Programming Language
Start with beginner-friendly languages that are widely used and have lots of resources.
โ Python โ Great for beginners, versatile (web, data, automation)
โ JavaScript โ Perfect for web development
โ C++ / Java โ Ideal if you're targeting DSA or competitive programming
Goal: Be comfortable with syntax, writing small programs, and using an IDE.
โ Learn Basic Programming Concepts
Understand the foundational building blocks of coding:
โ Variables, data types
โ Input/output
โ Loops (for, while)
โ Conditional statements (if/else)
โ Functions and scope
โ Error handling
Tip: Use visual platforms like W3Schools, freeCodeCamp, or Sololearn.
โ Understand Data Structures & Algorithms (DSA)
โ Arrays, Strings
โ Linked Lists, Stacks, Queues
โ Hash Maps, Sets
โ Trees, Graphs
โ Sorting & Searching
โ Recursion, Greedy, Backtracking
โ Dynamic Programming
Use GeeksforGeeks, NeetCode, or Striver's DSA Sheet.
โ Practice Problem Solving Daily
โ LeetCode (real interview Qs)
โ HackerRank (step-by-step)
โ Codeforces / AtCoder (competitive)
Goal: Focus on logic, not just solutions.
โ Build Mini Projects
โ Calculator
โ To-do list app
โ Weather app (using APIs)
โ Quiz app
โ Rock-paper-scissors game
Projects solidify your concepts.
โ Learn Git & GitHub
โ Initialize a repo
โ Commit & push code
โ Branch and merge
โ Host projects on GitHub
Must-have for collaboration.
โ Learn Web Development Basics
โ HTML โ Structure
โ CSS โ Styling
โ JavaScript โ Interactivity
Then explore:
โ React.js
โ Node.js + Express
โ MongoDB / MySQL
โ Choose Your Career Path
โ Web Dev (Frontend, Backend, Full Stack)
โ App Dev (Flutter, Android)
โ Data Science / ML
โ DevOps / Cloud (AWS, Docker)
โ Work on Real Projects & Internships
โ Build a portfolio
โ Clone real apps (Netflix UI, Amazon clone)
โ Join hackathons
โ Freelance or open source
โ Apply for internships
โ Stay Updated & Keep Improving
โ Follow GitHub trends
โ Dev YouTube channels (Fireship, etc.)
โ Tech blogs (Dev.to, Medium)
โ Communities (Discord, Reddit, X)
๐ฏ Remember:
โข Consistency > Intensity
โข Learn by building
โข Debugging is learning
โข Track progress weekly
Useful WhatsApp Channels to Learn Programming Languages
Python Programming: https://whatsapp.com/channel/0029VaiM08SDuMRaGKd9Wv0L
JavaScript: https://whatsapp.com/channel/0029VavR9OxLtOjJTXrZNi32
C++ Programming: https://whatsapp.com/channel/0029VbBAimF4dTnJLn3Vkd3M
Java Programming: https://whatsapp.com/channel/0029VamdH5mHAdNMHMSBwg1s
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| 9 |  CVE | Cyber Vulnerabilities Exchange
Group dedicated to sharing and discussing CVEs, zero-days, critical vulnerabilities, exploits, PoCs, and technical analyses of offensive and defensive security.
What you'll find here:
โข Newly disclosed CVEs
โข Public and private exploits
โข Technical analysis and bypasses
โข Offensive/defensive security
โข Penetration testing and red team discussions
Technical, direct, and straightforward content.
Channel=> https://t.me/cve0day
Think. Break. Secure. | 0 |
| 10 | +3 ๐ป Collection of cheat sheets on SQL
I've gathered for you short and understandable cheat sheets on the main topics:
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โถ๏ธ SQL for data analysis.
An excellent set to refresh your knowledge before a job interview or quickly recall the syntax.
tags: #sql #useful
https://t.me/DataAnalyticsX | 0 |
| 11 | Master DSA ๐
DSA MASTER TREE
โ
โโโ 1. Foundations
โ โโโ What is Data Structure
โ โโโ What is Algorithm
โ โโโ Time Complexity
โ โ โโโ Big-O
โ โ โโโ Big-ฮฉ
โ โ โโโ Big-ฮ
โ โโโ Space Complexity
โ โโโ Recurrence Relations
โ
โโโ 2. Mathematical Basics
โ โโโ Logarithms
โ โโโ Modular Arithmetic
โ โโโ Prime Numbers
โ โโโ GCD / LCM
โ โโโ Sieve of Eratosthenes
โ
โโโ 3. Arrays
โ โโโ Traversal
โ โโโ Searching
โ โ โโโ Linear Search
โ โ โโโ Binary Search
โ โโโ Prefix Sum
โ โโโ Sliding Window
โ โโโ Two Pointers
โ โโโ Kadaneโs Algorithm
โ โโโ Matrix / 2D Arrays
โ
โโโ 4. Strings
โ โโโ String Manipulation
โ โโโ Pattern Matching
โ โ โโโ Naive
โ โ โโโ KMP
โ โ โโโ Rabin-Karp
โ โ โโโ Z Algorithm
โ โโโ Palindrome Problems
โ โโโ String Hashing
โ โโโ Trie
โ
โโโ 5. Linked Lists
โ โโโ Singly Linked List
โ โโโ Doubly Linked List
โ โโโ Circular Linked List
โ โโโ Reverse Linked List
โ โโโ Cycle Detection (Floyd)
โ โโโ Merge Lists
โ
โโโ 6. Stack
โ โโโ Stack Implementation
โ โโโ Balanced Parentheses
โ โโโ Next Greater Element
โ โโโ Monotonic Stack
โ โโโ Min Stack
โ
โโโ 7. Queue
โ โโโ Queue Implementation
โ โโโ Circular Queue
โ โโโ Deque
โ โโโ Priority Queue
โ โโโ Monotonic Queue
โ
โโโ 8. Hashing
โ โโโ Hash Tables
โ โโโ Collision Handling
โ โ โโโ Chaining
โ โ โโโ Open Addressing
โ โโโ Load Factor
โ โโโ Rehashing
โ
โโโ 9. Trees
โ โโโ Binary Tree
โ โ โโโ Traversals
โ โ โ โโโ Inorder
โ โ โ โโโ Preorder
โ โ โ โโโ Postorder
โ โ โโโ Height / Depth
โ โ โโโ Diameter
โ โโโ Binary Search Tree
โ โโโ AVL Tree
โ โโโ Red-Black Tree
โ โโโ Segment Tree
โ โโโ Fenwick Tree
โ โโโ Heap
โ โโโ Min Heap
โ โโโ Max Heap
โ
โโโ 10. Graphs
โ โโโ Graph Representation
โ โ โโโ Adjacency Matrix
โ โ โโโ Adjacency List
โ โโโ BFS
โ โโโ DFS
โ โโโ Topological Sort
โ โโโ Cycle Detection
โ โโโ Shortest Path
โ โ โโโ Dijkstra
โ โ โโโ Bellman-Ford
โ โ โโโ Floyd-Warshall
โ โโโ Minimum Spanning Tree
โ โ โโโ Kruskal
โ โ โโโ Prim
โ โโโ Disjoint Set (Union-Find)
โ
โโโ 11. Recursion & Backtracking
โ โโโ Recursion Basics
โ โโโ Subsets
โ โโโ Permutations
โ โโโ N-Queens
โ โโโ Sudoku Solver
โ
โโโ 12. Greedy Algorithms
โ โโโ Activity Selection
โ โโโ Huffman Coding
โ โโโ Fractional Knapsack
โ โโโ Job Scheduling
โ
โโโ 13. Dynamic Programming
โ โโโ Memoization
โ โโโ Tabulation
โ โโโ 1D DP
โ โโโ 2D DP
โ โโโ Knapsack Variants
โ โโโ Longest Common Subsequence
โ โโโ Longest Increasing Subsequence
โ โโโ Matrix Chain Multiplication
โ
โโโ 14. Bit Manipulation
โ โโโ Bitwise Operators
โ โโโ Set / Clear Bits
โ โโโ Count Set Bits
โ โโโ XOR Tricks
โ
โโโ 15. Advanced DSA
โ โโโ Sparse Table
โ โโโ Heavy-Light Decomposition
โ โโโ Treap
โ โโโ Splay Tree
โ โโโ Skip List
โ
โโโ 16. Interview Patterns
โโโ Two Pointer Pattern
โโโ Sliding Window Pattern
โโโ Binary Search Pattern
โโโ BFS / DFS Pattern
โโโ Greedy Choice Pattern
โโโ DP Pattern Recognition | 0 |
| 12 | +4 Introducing Python 2025.pdf | 0 |
| 13 |  ๐ New Edge for Polymarket Traders: Oracle Lag Sniper
A high-performance, open-source strategy repo is making waves right now among serious Polymarket users: the Oracle Lag Sniper.
๐ Why itโs worth your attention:
โข Exploits oracle timing inefficiencies
โข Built for fast execution & precise entries
โข Fully open-source, inspect, modify, and run it yourself
๐ Check out the repo here:
Oracle Lag Sniper GitHub
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