Coding Interview Preparation

@coding_interview_preparation - Chaîne Telegram

Technologie

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13/07/26

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À propos de Coding Interview Preparation

Coding Interview Preparation est un canal Telegram dédié à Technologie, avec plus de 5k abonnés. Coding interview preparation for software engineers Interview questions, DSA, clean solutions. Join 👉 https://rebrand.ly/bigdatachannels Buy ads: https://telega.io/c/coding_interview_preparation D... Rejoignez le canal pour recevoir toutes les mises à jour directement sur Telegram.

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Coding interview preparation for software engineers Interview questions, DSA, clean solutions. Join 👉 https://rebrand.ly/bigdatachannels Buy ads: https://telega.io/c/coding_interview_preparation DMCA: @disclosure_bds Contact: @mldatascientist

Messages récents

📊 SQL SATURDAY #3 - GROUP BY and Aggregates orders +----+-------------+--------+------------+ | id | customer_id | amount | order_date | +----+-------------+--------+------------+ | 1 | 1 | 250 | 2024-01-05 | | 2 | 1 | 100 | 2024-02-14 | | 3 | 2 | 75 | 2024-01-20 | | 4 | 3 | 500 | 2024-03-01 | | 5 | 2 | 200 | 2024-03-15 | Quest

25/07/26 201

📄 RESUME ROAST #2 Real-style bullet incoming: > "Familiar with Python, Java, C++, JavaScript, React, Angular, Vue, Node.js, Docker, Kubernetes, AWS, Azure, GCP, MongoDB, PostgreSQL, Redis, Kafka, GraphQL" What's wrong here? 👇 . . . The roast: This is the "keyword salad" resume. It signals one of two things to an experienced hiring manager: either you're exaggerating your depth in most of these, or

25/07/26 225

Sorting Algortihm Comparison

26/07/26 199

🏗️ SYSTEM DESIGN MONDAY #3 - Load Balancing & Horizontal Scaling One server is now overwhelmed. Two options: make it bigger (vertical scaling) or add more of them (horizontal scaling). Horizontal scaling is what most large systems actually do - there's a ceiling on how big one machine can get, but no real ceiling on how many machines you can add. ┌─────────┐ ┌───── ▶ │ Server 1│ │ └─────────┘

27/07/26 184

💰 SALARY NEGOTIATION #2 - Handling "What's Your Current Salary?" This question puts a lot of candidates on the spot - and in many US states, it's actually illegal for employers to ask. But it still comes up, especially in phone screens or in regions where it's legal. The problem with answering directly: it anchors your new offer to your old salary, especially if you were underpaid before. ✅ A scri

27/07/26 159

🧠 EDUCATIONAL CS #3 - Recursion Without the Headache Recursion clicks once you stop thinking about "the whole problem" and start thinking about these two things: 1️⃣ Base case - the simplest version of the problem you can answer directly, no further recursion needed. 2️⃣ Recursive case - how to break the problem into a smaller version of itself, plus some work. python def factorial(n): if n == 0:

28/07/26 133

🐛 SPOT THE BUG #3 Language: Python python def binary_search(arr, target): left, right = 0, len(arr) while left < right: mid = (left + right) // 2 if arr[mid] == target: return mid elif arr[mid] < target: left = mid else: right = mid return -1 Subtle one. Spot it before scrolling 👇 . . . The bug: Infinite loop risk. When arr[mid] < target , the code sets left = mid instead of left = mid + 1 . If mi

29/07/26 78

💰 SALARY NEGOTIATION #3 - Comparing Multiple Offers Having multiple offers is the single strongest negotiation position you can be in - but a surprising number of people mishandle it by staying quiet about it. ✅ The script, once you have a competing offer: "I wanted to be transparent with you - I've received another offer at $X with [notable perk, e.g., more equity / remote flexibility]. I'm genui

29/07/26 60

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