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Coding Interview Preparation
22 Sept, 10:45
System Design Concepts You Need to Master If I Wanted to Crush it.1.Consistent Hashing 2.Sharding 3.CAP Theorem 4.Quorum Consensus 5.Leader Election 6.Raft & Paxos 7.Gossip Protocol 8.Vector Clocks 9.Load Shedding 10.Circuit Breakers 11.Backpressure 12.Tail Latency Reduction 13.Bloom Filters 14.HyperLogLog 15.Reservoir Sampling 16.Split-Brain Resolution@coding_interview_preparation
Coding Interview Preparation
20 Sept, 09:35
🚫 5 Mistakes Beginners Make While Learning CodingLearning to code is not just about writing more code. Avoiding these mistakes can save you months of frustration 👨💻⚡️1. Learning Too Many Languages 🔄 • Jumping between Python, C++, Java and JavaScript • Master one language before moving to another2. Watching Tutorials Without Practicing 📺 • Tutorials feel productive, but passive learning isn't enough • Write the code yourself and solve problems without copying3. Trying to Learn Everything at Once 🧠 • DSA, Web Dev, AI, Cloud, Cybersecurity... • Pick one direction and build a strong foundation first4. Avoiding Projects 🛠 • Completing courses without building anything • Projects help you turn concepts into real skillsCoding Interview Preparation
19 Sept, 16:03
forwarded from @programming_quizz
Coding Interview Preparation
19 Sept, 09:10
Sorting Algorithms Summary
Coding Interview Preparation
17 Sept, 11:40
🧠 DSA Topics You Should Learn in OrderConfused about what to learn in DSA? Follow this order and build your concepts step by step 👨💻🔥🟢 Foundation1. Time & Space Complexity ⏱️ • Understand Big O notation • Learn how to analyze your solutions2. Arrays & Strings 📦 • Master traversal, searching and basic manipulation • Practice two pointers and sliding window3. Recursion & Backtracking 🔄 • Understand recursive thinking • Solve subsets, permutations and combination problems🟡 Core Data StructuresCoding Interview Preparation
16 Sept, 15:14
forwarded from @web_dev_bds
📂 API Design Roadmap ┃ ┣ 📂 Foundations ┃ ┣ 📂 What is an API? ┃ ┣ 📂 HTTP & HTTPS Fundamentals ┃ ┣ 📂 Request & Response Lifecycle ┃ ┣ 📂 JSON & Data Formats ┃ ┗ 📂 API Design Principles ┃ ┣ 📂 REST API Design ┃ ┣ 📂 REST Architecture ┃ ┣ 📂 Resources & Endpoints ┃ ┣ 📂 HTTP Methods (GET, POST, PUT, DELETE, PATCH) ┃ ┣ 📂 Status Codes ┃ ┗ 📂 REST Best Practices ┃ ┣ 📂 API Documentation ┃ ┣ 📂 OpenAPI Specification ┃ ┣ 📂 Swagger UI ┃ ┣ 📂 API Reference DocumentationCoding Interview Preparation
15 Sept, 05:41
Coding Interview Preparation
12 Sept, 15:32
Types of APIs & Their Use Cases
Coding Interview Preparation
11 Sept, 07:40
DSA Topics Linked with Specific LeetCode ProblemsCoding Interview Preparation
9 Sept, 07:51
⚠️ COMMON INTERVIEW MISTAKE #7 (BONUS) - Over-Engineering the SolutionThe opposite failure mode from jumping into code too fast: spending 10 minutes designing an elaborate, "enterprise-grade" solution for a problem that just needed a simple loop.This happens most often to engineers who've read a lot about design patterns and want to show off - but interviewers usually read it as poor judgment about scope, not seniority.✅ What to do instead: match the complexity of your solution to the actual complexity of the problem. If the interviewer explicitly says "assume this only ever runs once, on a small input," you don't need to discuss caching, sharding, or abstract factory patterns.A good gut-check question to ask yourself out loud: "Given the constraints we discussed, is this the SIMPLEST solution that meets them?" If you want to show deeper knowledge, mention the more complexCoding Interview Preparation
8 Sept, 10:45
ESSENTIAL ARRAY PATTERNS 📌 Every Developer Should Know1. TWO POINTERSFind pairs, remove duplicates, compare elements from both ends, and optimize array traversals.2. SLIDING WINDOWSolve subarray and contiguous sequence problems efficiently without repeatedly recalculating values.3. PREFIX SUMAnswer range-sum and cumulative queries quickly by reusing previously computed sums.4. KADANE'S ALGORITHMCoding Interview Preparation
6 Sept, 11:57
🕵️ RECRUITER SECRETS #6 - Why Referrals Actually Work (and How to Get One)An internal referral doesn't guarantee you the job - but it dramatically increases the odds your resume actually gets read by a human, instead of getting buried under hundreds of cold applications.Here's what's actually happening behind the scenes: most companies have an internal referral bonus for employees, AND recruiters are often measured on how many hires come through referrals (it's a cheaper, faster, generally higher-quality channel than cold sourcing). That means employees and recruiters both have real incentive to help you.✅ How to actually get a referral, without being awkward about it:1. Don't message a stranger with "hey, can you refer me?" as your opening line - that's an easy no. 2. Find genuine common ground first (same school, same previous company, mutual connection) or engage with theirCoding Interview Preparation
5 Sept, 11:31
forwarded from @programming_quizz
Coding Interview Preparation
5 Sept, 07:45
📊 SQL SATURDAY #8 (BONUS) - Optimization: Why Your Query Is SlowYou've learned the syntax. Now let's talk about WHY some queries crawl on large tables - a favorite senior-level SQL interview topic.The #1 cause: missing indexes. Without an index, the database does a full table scan - checking every single row to find matches, like reading an entire book to find one sentence.sql -- Without an index on email, this scans ALL rows: SELECT FROM users WHERE email = 'alice@example.com';-- Add an index: CREATE INDEX idx_users_email ON users(email); -- Now the database can jump almost directly to matching rows, -- similar in spirit to binary search on a sorted structure.⚠️ But indexes aren't free - they speed up reads, but slow down writes (every INSERT/UPDATE also has to update the index), and they take up disk space. This is exactly why you don't index every column "just in case" -Coding Interview Preparation
4 Sept, 07:56
🐛 SPOT THE BUG #6 Language: Pythonpython class BankAccount: def __init__(self, balance): self.balance = balancedef withdraw(self, amount): if amount <= self.balance: self.balance -= amount return True return False# Two threads calling withdraw(100) at nearly the same time # on an account with balance = 100What breaks here under concurrent access? 👇.Coding Interview Preparation
3 Sept, 15:00
forwarded from @programming_quizz
Coding Interview Preparation
3 Sept, 07:52
🎯 CODING CHALLENGE #12 - Group Anagrams Difficulty: Medium | Asked at: Amazon, Meta, UberGiven an array of strings, group the anagrams together.Input: ["eat","tea","tan","ate","nat","bat"] Output: [["eat","tea","ate"],["tan","nat"],["bat"]]💡 Hint: Two words are anagrams if and only if their sorted characters are identical. That sorted string makes a perfect hash key.Solution: python from collections import defaultdictdef group_anagrams(strs): groups = defaultdict(list) for s in strs: key = ''.join(sorted(s)) groups[key].append(s) return list(groups.values())Coding Interview Preparation
1 Sept, 07:16
💬 CLOSING DISCUSSION - What Are You Working Toward Right Now?We've covered a lot of ground together - coding patterns, SQL, system design, behavioral prep, salary scripts, and enough resume roasts to make anyone paranoid about their bullet points (in a good way).Here's the truth: none of this matters unless you actually put it into practice. Reading about the sliding window pattern doesn't make you fast at recognizing it - solving 5 problems with it does. Reading a negotiation script doesn't make it feel natural - saying it out loud once, even just to yourself, does.So tell us: what's your current goal? A specific company? A level up? Your first engineering job? A career switch into tech?Drop it below. This channel is more useful as a community than as a broadcast - let's actually help each other get there. 🚀Coding Interview Preparation
31 Aug, 11:32
🗣️ BEHAVIORAL INTERVIEW #6 (BONUS) - "Where Do You See Yourself in 5 Years?"This question isn't really about predicting the future - nobody expects a precise 5-year roadmap. It's testing: are your goals compatible with what THIS role/company can actually offer you?❌ Answers that raise flags: - "I want to be a manager" (fine, but say it thoughtfully if the role is individual-contributor track, and be ready to discuss it) - "I'm not sure, just going with the flow" (reads as a lack of direction or ambition) - An answer wildly misaligned with the role (e.g., "I want to move into a completely different field" for a specialized technical role)✅ A strong structure: "In 5 years, I'd like to have deepened my expertise in [relevant technical area], and ideally be mentoring more junior engineers or leading technical design for larger projects. I'm drawn to this role specifically becauseCoding Interview Preparation
30 Aug, 14:12
⚠️ COMMON INTERVIEW MISTAKE #6 (BONUS) - Memorizing Solutions Instead of Understanding PatternsGrinding 300 LeetCode problems by memorizing each specific solution is a losing strategy - the moment an interviewer changes ONE constraint, memorized solutions fall apart, because there was never any real understanding underneath them.✅ The better strategy: learn the ~15 underlying PATTERNS (sliding window, two pointers, BFS/DFS, dynamic programming, backtracking, heaps, intervals, topological sort, and a few others), and practice recognizing which pattern a NEW, unfamiliar problem maps to.A genuinely strong signal in interviews: when given a twist on a problem you've never seen ("now the array is sorted" or "now you need the top K instead of just one"), you can reason your way to the adjusted solution live, instead of freezing because it doesn't match anything memorized.Quick self-tes
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