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Coding Interview Resources

Coding Interview Resources

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This channel contains the free resources and solution of coding problems which are usually asked in the interviews. Managed by: @love_data

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📈 Telegram 频道 Coding Interview Resources 的分析概览

频道 Coding Interview Resources (@crackingthecodinginterview) 英语 语言赛道中的 是活跃参与者。目前社区聚集了 52 260 名订阅者,在 技术与应用 类别中位列第 2 474,并在 印度 地区排名第 6 699

📊 受众指标与增长动态

невідомо 创建以来,项目保持高速增长,吸引了 52 260 名订阅者。

根据 17 九月, 2026 的最新数据,频道保持稳定运转。过去 30 天订阅人数变化为 -43,过去 24 小时变化为 1,整体触达仍然可观。

  • 认证状态: 未认证
  • 互动率 (ER): 平均受众互动率为 1.59%。内容发布后 24 小时内通常能获得 0.73% 的反应,占订阅者总量。
  • 帖子覆盖: 每篇帖子平均可获得 833 次浏览,首日通常累积 383 次浏览。
  • 互动与反馈: 受众积极参与,单帖平均反应数为 1
  • 主题关注点: 内容集中在 array, stack, algorithm, programming, sort 等核心主题上。

📝 描述与内容策略

作者将该频道定位为表达主观观点的平台:
This channel contains the free resources and solution of coding problems which are usually asked in the interviews. Managed by: @love_data

凭借高频更新(最新数据采集于 18 九月, 2026),频道始终保持新鲜度与高覆盖。分析显示受众积极互动,使其成为 技术与应用 类别中的关键影响点。

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频道帖子
Complete DSA Roadmap |-- Basic_Data_Structures | |-- Arrays | |-- Strings | |-- Linked_Lists | |-- Stacks | └─ Queues | |-- Advanced_Data_Structures | |-- Trees | | |-- Binary_Trees | | |-- Binary_Search_Trees | | |-- AVL_Trees | | └─ B-Trees | | | |-- Graphs | | |-- Graph_Representation | | | |- Adjacency_Matrix | | | └ Adjacency_List | | | | | |-- Depth-First_Search | | |-- Breadth-First_Search | | |-- Shortest_Path_Algorithms | | | |- Dijkstra's_Algorithm | | | └ Bellman-Ford_Algorithm | | | | | └─ Minimum_Spanning_Tree | | |- Prim's_Algorithm | | └ Kruskal's_Algorithm | | | |-- Heaps | | |-- Min_Heap | | |-- Max_Heap | | └─ Heap_Sort | | | |-- Hash_Tables | |-- Disjoint_Set_Union | |-- Trie | |-- Segment_Tree | └─ Fenwick_Tree | |-- Algorithmic_Paradigms | |-- Brute_Force | |-- Divide_and_Conquer | |-- Greedy_Algorithms | |-- Dynamic_Programming | |-- Backtracking | |-- Sliding_Window_Technique | |-- Two_Pointer_Technique | └─ Divide_and_Conquer_Optimization | |-- Merge_Sort_Tree | └─ Persistent_Segment_Tree | |-- Searching_Algorithms | |-- Linear_Search | |-- Binary_Search | |-- Depth-First_Search | └─ Breadth-First_Search | |-- Sorting_Algorithms | |-- Bubble_Sort | |-- Selection_Sort | |-- Insertion_Sort | |-- Merge_Sort | |-- Quick_Sort | └─ Heap_Sort | |-- Graph_Algorithms | |-- Depth-First_Search | |-- Breadth-First_Search | |-- Topological_Sort | |-- Strongly_Connected_Components | └─ Articulation_Points_and_Bridges | |-- Dynamic_Programming | |-- Introduction_to_DP | |-- Fibonacci_Series_using_DP | |-- Longest_Common_Subsequence | |-- Longest_Increasing_Subsequence | |-- Knapsack_Problem | |-- Matrix_Chain_Multiplication | └─ Dynamic_Programming_on_Trees | |-- Mathematical_and_Bit_Manipulation_Algorithms | |-- Prime_Numbers_and_Sieve_of_Eratosthenes | |-- Greatest_Common_Divisor | |-- Least_Common_Multiple | |-- Modular_Arithmetic | └─ Bit_Manipulation_Tricks | |-- Advanced_Topics | |-- Trie-based_Algorithms | | |-- Auto-completion | | └─ Spell_Checker | | | |-- Suffix_Trees_and_Arrays | |-- Computational_Geometry | |-- Number_Theory | | |-- Euler's_Totient_Function | | └─ Mobius_Function | | | └─ String_Algorithms | |-- KMP_Algorithm | └─ Rabin-Karp_Algorithm | |-- OnlinePlatforms | |-- LeetCode | |-- HackerRank DSQ Resources: https://whatsapp.com/channel/0029VbBKM0eJENy38bbzbg2m React ❤️ for more

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𝗧𝗼𝗽 𝟭𝟱 𝗣𝘆𝘁𝗵𝗼𝗻 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 𝗬𝗼𝘂 𝗠𝗨𝗦𝗧 𝗞𝗻𝗼𝘄! 🔥 Preparing for a Python Developer
𝗧𝗼𝗽 𝟭𝟱 𝗣𝘆𝘁𝗵𝗼𝗻 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 𝗬𝗼𝘂 𝗠𝗨𝗦𝗧 𝗞𝗻𝗼𝘄! 🔥 Preparing for a Python Developer or Data Analyst interview? Strengthen your fundamentals with these essential interview topics. 🎯 Perfect for Students • Freshers • Python Learners • Data Analyst Aspirants 🔗 𝗚𝗲𝘁 𝘁𝗵𝗲 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 👇 https://pdlink.in/3TAUwk7 📌Save this for your next interview and share it with a friend!
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🟤 Part 16 — Dynamic Programming Start with: • Memoization, Tabulation, 1D DP, 2D DP Then: • Fibonacci pattern, Climbing stairs, Knapsack, Coin change, Subset sum • Longest Common Subsequence, Longest Increasing Subsequence, Matrix DP, Grid problems, DP on trees, DP on strings 🎯 Goal: Recognize overlapping subproblems and optimal substructure. 🟤 Part 17 — Advanced Data Structures After the core DSA topics: • Trie, Segment Tree, Fenwick Tree / BIT, Sparse Table, Advanced heaps, Advanced graph structures 🏆 Part 18 — Problem-Solving Patterns This is extremely important for interviews. Master: • Two pointers, Sliding window, Fast & slow pointers, Prefix sum, Binary search, Hashing • Monotonic stack, Recursion, Backtracking, Divide & conquer, Greedy, Dynamic programming • BFS/DFS, Topological sorting, Union-Find 💼 Part 19 — Interview Preparation Practice problems across: • Arrays, Strings, Linked Lists, Stack & Queue, Hashing, Trees, BST, Heap, Graphs, Greedy, DP, Recursion & Backtracking Don't just solve problems—learn to explain: Approach → Why it works → Complexity → Edge cases → Code 🚀 Part 20 — Competitive & Advanced Practice Once you're comfortable with interview-level DSA: • Timed problem solving, Mixed-topic problems, Contest practice, Optimization • Advanced graph problems, Advanced DP, Hard-level problems, Mock interviews 🎯 Double Tap ❤️ For Detailed Explanation ----- 1.4 ₽ · /balance_help
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💻 DSA Learning Roadmap 2026 If you're starting Data Structures & Algorithms from scratch, follow this order and practice each topic before moving ahead. 🟢 Part 1 — Programming Fundamentals • Variables and data types, Operators, Conditions, Loops, Functions • Recursion basics, Arrays and strings, Input/output, Basic problem solving 🎯 Goal: Become comfortable writing code before starting DSA. 🟢 Part 2 — Complexity Analysis • Time complexity, Space complexity, Big O notation, Big Ω, Big Θ • Best, average and worst case, Comparing algorithms, Complexity of common operations 🎯 Goal: Learn to judge whether a solution is efficient. 🟡 Part 3 — Arrays • Traversal, Searching, Insertion and deletion, Prefix sums • Two pointers, Sliding window, Kadane's algorithm, Sorting-based problems, Subarrays 🎯 Goal: Solve common array problems efficiently. 🟡 Part 4 — Strings • String manipulation, Character frequency, Palindromes, Anagrams, Substrings • Two pointers, Sliding window, String hashing basics 🟡 Part 5 — Searching & Sorting Learn: • Searching: Linear search, Binary search, Binary search on answer • Sorting: Bubble sort, Selection sort, Insertion sort, Merge sort, Quick sort, Counting sort, Heap sort 🎯 Goal: Understand both the algorithms and when to use them. 🔵 Part 6 — Linked Lists • Singly linked list, Doubly linked list, Circular linked list • Insert/delete, Reverse a linked list, Fast & slow pointers, Cycle detection, Merge linked lists, Find middle node 🔵 Part 7 — Stack & Queue • Stack: Push/pop, Applications, Balanced parentheses, Monotonic stack, Next greater element • Queue: Enqueue/dequeue, Circular queue, Deque, Priority queue 🟣 Part 8 — Hashing • Hash tables, Hash maps, Hash sets, Frequency counting • Duplicate detection, Two-sum pattern, Prefix-sum + hashing, Collision concepts 🎯 Goal: Learn how hashing can reduce many problems from O(n²) to O(n). 🟣 Part 9 — Recursion & Backtracking • Recursion fundamentals, Base cases, Recursive trees • Subsets, Subsequences, Permutations, Combination problems, N-Queens, Sudoku, Maze problems 🟠 Part 10 — Trees • Binary trees, Tree terminology, DFS, BFS, Preorder, Inorder, Postorder, Level-order traversal • Height/depth, Diameter, Balanced trees, Lowest Common Ancestor 🟠 Part 11 — Binary Search Trees • BST properties, Search, Insert, Delete, Minimum/maximum, Successor/predecessor, Validate BST, LCA in BST 🔴 Part 12 — Heap & Priority Queue • Min heap, Max heap, Heapify, Insert/delete, Priority queue • Top K problems, Kth largest/smallest, Heap sort, Merge K sorted lists 🔴 Part 13 — Graphs • Graph representation, Adjacency matrix, Adjacency list, BFS, DFS • Connected components, Cycle detection, Bipartite graphs, Topological sorting 🔴 Part 14 — Advanced Graph Algorithms • Dijkstra, Bellman-Ford, Floyd-Warshall, Minimum Spanning Tree • Prim's algorithm, Kruskal's algorithm, Disjoint Set Union, Strongly connected components, Shortest paths 🟤 Part 15 — Greedy Algorithms • Greedy strategy, Activity selection, Fractional knapsack, Job scheduling, Interval problems, Minimum platforms, Huffman coding 🎯 Goal: Learn when making the locally optimal choice leads to a global solution.
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Here is an A-Z list of essential programming terms: 1. Array: A data structure that stores a collection of elements of the same type in contiguous memory locations. 2. Boolean: A data type that represents true or false values. 3. Conditional Statement: A statement that executes different code based on a condition. 4. Debugging: The process of identifying and fixing errors or bugs in a program. 5. Exception: An event that occurs during the execution of a program that disrupts the normal flow of instructions. 6. Function: A block of code that performs a specific task and can be called multiple times in a program. 7. GUI (Graphical User Interface): A visual way for users to interact with a computer program using graphical elements like windows, buttons, and menus. 8. HTML (Hypertext Markup Language): The standard markup language used to create web pages. 9. Integer: A data type that represents whole numbers without any fractional part. 10. JSON (JavaScript Object Notation): A lightweight data interchange format commonly used for transmitting data between a server and a web application. 11. Loop: A programming construct that allows repeating a block of code multiple times. 12. Method: A function that is associated with an object in object-oriented programming. 13. Null: A special value that represents the absence of a value. 14. Object-Oriented Programming (OOP): A programming paradigm based on the concept of "objects" that encapsulate data and behavior. 15. Pointer: A variable that stores the memory address of another variable. 16. Queue: A data structure that follows the First-In-First-Out (FIFO) principle. 17. Recursion: A programming technique where a function calls itself to solve a problem. 18. String: A data type that represents a sequence of characters. 19. Tuple: An ordered collection of elements, similar to an array but immutable. 20. Variable: A named storage location in memory that holds a value. 21. While Loop: A loop that repeatedly executes a block of code as long as a specified condition is true. Best Programming Resources: https://topmate.io/coding/898340 Join for more: https://t.me/programming_guide ENJOY LEARNING 👍👍
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🎓 𝗧𝗼𝗽 𝗜𝗻-𝗗𝗲𝗺𝗮𝗻𝗱 𝗙𝗥𝗘𝗘 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝘁𝗼 𝗠𝗮𝘀𝘁𝗲𝗿 𝗶𝗻 𝟮𝟬𝟮𝟲 🔥 Explore these FREE certi
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🖐 HTML TIPS AND TRICKS+7
🖐 HTML TIPS AND TRICKS
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7 Free AI APIs to build your next project 👇 1/ Google Gemini API — https://ai.google.dev 2/ Groq — https://console.groq.com 3/ OpenRouter — https://openrouter.ai 4/ Cloudflare Workers AI — https://developers.cloudflare.com/workers-ai 5/ Pollinations.ai — https://pollinations.ai (no key needed) 6/ Hugging Face Inference API — https://huggingface.co/inference-api 7/ Cerebras — https://cloud.cerebras.ai
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✅ Top Programming Concepts Every Developer Should Know 👨‍💻🔥 🐍 Python BASICS 1. Variables Data Types 2. Loops (for, while) 3. Functions 4. Lists, Tuples, Dictionaries 5. Exception Handling 6. File Handling 7. Modules Packages 8. OOP Concepts ☕ Java CORE 1. JVM JDK Basics 2. Classes Objects 3. Inheritance 4. Polymorphism 5. Exception Handling 6. Multithreading 7. Collections Framework 8. File I/O 💻 C++ FUNDAMENTALS 1. Pointers 2. Memory Management 3. OOP Concepts 4. STL (Standard Template Library) 5. Recursion 6. File Handling 7. Templates 8. Data Structures 🟨 JavaScript ESSENTIALS 1. DOM Manipulation 2. ES6+ Features 3. Async/Await 4. Promises 5. Event Handling 6. Closures 7. APIs Fetch 8. JSON Handling 🟥 Swift CORE SKILLS 1. Optionals 2. Closures 3. Protocols 4. Memory Management (ARC) 5. UIKit / SwiftUI 6. Error Handling 7. Networking 8. App Lifecycle 🟩 C# KEY CONCEPTS 1. .NET Framework 2. LINQ 3. Async Programming 4. Delegates Events 5. Entity Framework 6. OOP Concepts 7. Exception Handling 8. Windows Forms / WPF 💡 BONUS (Common for All Languages) ✔ Data Structures ✔ Algorithms ✔ Debugging ✔ Version Control (Git) ✔ Problem Solving 💬 Double Tap ❤️ For More
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𝗧𝗼𝗽 𝟱 𝗙𝗥𝗘𝗘 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝘁𝗼 𝗞𝗶𝗰𝗸𝘀𝘁𝗮𝗿𝘁 𝗬𝗼𝘂𝗿 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗖𝗮𝗿𝗲𝗲𝗿 📊 Want to start a ca
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✅ Programming Concepts – Interview Questions 💻⚡ 🧠 Core Programming Concepts 1. What is the difference between compiled and interpreted languages? 2. What is OOP? Explain its 4 pillars. 3. Difference between Abstraction vs Encapsulation? 4. What is Polymorphism? Give a real example. 5. What is the difference between Stack and Heap memory? 6. What is Recursion? When should you avoid it? 7. What is the difference between Pass by Value and Pass by Reference? 8. What are mutable vs immutable objects? 9. What is a deadlock? 10. What is multithreading? 🧩 Data Structures & Algorithms Concepts 1. What is Time Complexity? 2. Difference between Array and Linked List? 3. When would you use a HashMap? 4. Explain Binary Search and its complexity. 5. What is a Stack Overflow error? 6. What is a Queue vs Priority Queue? 7. What is Dynamic Programming? 8. What is Greedy Algorithm? 9. Explain Big-O notation. 10. What is Space Complexity? 🗄 Database & SQL Concepts 1. What is Normalization? 2. Difference between Primary Key and Foreign Key? 3. What is Indexing and why is it used? 4. Difference between INNER JOIN and LEFT JOIN? 5. What is a Transaction? Explain ACID properties. 🌐 System & Backend Concepts 1. What is an API? 2. Difference between REST and SOAP? 3. What is Authentication vs Authorization? 4. What is Caching? 5. What is Load Balancing? ⚡ Advanced Conceptual Questions 1. What is Dependency Injection? 2. What is Design Pattern? Name some common ones. 3. What is Microservices Architecture? 4. What is Event-Driven Architecture? 5. What is Race Condition? 6. What is Memory Leak? 7. Explain Garbage Collection. 8. What is Lazy Loading? 9. What is Idempotency in APIs? 10. What is SOLID principle? Double Tap ♥️ For Detailed Answers ----- 1.34 ₽ · /balance_help
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𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗙𝗥𝗘𝗘 𝗢𝗻𝗹𝗶𝗻𝗲 𝗠𝗮𝘀𝘁𝗲𝗿𝗰𝗹𝗮𝘀𝘀 😍 💫Accelerate your career in Data Science 💫Discover t
𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗙𝗥𝗘𝗘 𝗢𝗻𝗹𝗶𝗻𝗲 𝗠𝗮𝘀𝘁𝗲𝗿𝗰𝗹𝗮𝘀𝘀 😍 💫Accelerate your career in Data Science 💫Discover the skills, tools and career roadmap needed to enter this high-demand field. 🔥 Beginner-friendly online session—no prior experience required! 𝗥𝗲𝗴𝗶𝘀𝘁𝗲𝗿 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘 👇:- https://pdlink.in/46adC3l (Only few slots left ) 📅 Date: September 11, 2026 ⏰ Time: 7:00 PM
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🚀 𝗧𝗔𝗧𝗔 𝗚𝗿𝗼𝘂𝗽 𝗙𝗥𝗘𝗘 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗜𝗻𝘁𝗲𝗿𝗻𝘀𝗵𝗶𝗽 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝘀 😍 Tata Group/TCS virtual job simulation
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🚀 𝗙𝗥𝗘𝗘 𝗖𝗶𝘁𝗶 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝘀 😍 | Boost Your Resume Citi offers virtual ex
🚀 𝗙𝗥𝗘𝗘 𝗖𝗶𝘁𝗶 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝘀 😍 | Boost Your Resume Citi offers virtual experience programs designed to help students and freshers develop job-ready skills through real-world tasks. ✅ 100% FREE ✅ Self-paced learning ✅ Real-world projects ✅ Certificate on completion ✅ Add the experience to your Resume & LinkedIn 🔗 𝗘𝗻𝗿𝗼𝗹𝗹 𝗳𝗼𝗿 𝗙𝗥𝗘𝗘 👇:- https://pdlink.in/4zZqJ4U 🔥 Learn → Complete Projects → Earn Certificate → Strengthen Your Resume
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What to do and What to avoid! When sitting in front of an interviewer, your actions and words can make or break your chances. It’s more than just answering questions, it's about presenting yourself as the ideal candidate. Here are some clear do's and don'ts to keep in mind. 📌Do: 1. Be Prepared. 2. Dress Appropriately. 3. Be Punctual. 4. Maintain Good Posture. 5. Listen Carefully. 6. Ask Thoughtful Questions. 7. Be Honest. 📌Don't: 1. Don’t Fidget. 2. Don’t Speak Negatively About Past Employers. 3. Don’t Interrupt. 4. Don’t Overshare. 5. Don’t Forget to Follow Up. By keeping these dos and don’ts in mind, you’ll be better prepared to make a strong impression in your interview. Good luck!
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🚀 𝗠𝗮𝘀𝘁𝗲𝗿 𝗜𝗻-𝗗𝗲𝗺𝗮𝗻𝗱 𝗧𝗲𝗰𝗵 𝗦𝗸𝗶𝗹𝗹𝘀 𝗳𝗼𝗿 𝗙𝗥𝗘𝗘 𝗶𝗻 𝟮𝟬𝟮𝟲 🔥 Want to upgrade your tech skills wit
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