<![CDATA[deluxify - Medium]]> https://medium.com/deluxify?source=rss----5be2e8768d54---4 https://cdn-images-1.medium.com/proxy/1*TGH72Nnw24QL3iV9IOm4VA.png deluxify - Medium https://medium.com/deluxify?source=rss----5be2e8768d54---4 Medium Fri, 13 Nov 2026 02:36:21 GMT <![CDATA[Coding Interview Patterns, Day 5: HashMap one-pass pattern]]>

It is often the case that you have a brute-force O(n²) solution, and a HashMap lets you bring it down to linear. This is usually a…

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]]> https://medium.com/deluxify/coding-interview-patterns-day-5-hashmap-one-pass-pattern-84f1f7cf625f?source=rss----5be2e8768d54---4 https://medium.com/p/84f1f7cf625f Wed, 22 Jul 2026 22:31:39 GMT 2026-07-22T22:31:38.249Z <![CDATA[Coding Interview Patterns, Day 4: Detect Deadlock (with AI assistance)]]>

Graph problems come up constantly in interviews. And if you think about a deadlock in multithreaded programming, it is really no different…

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]]> https://medium.com/deluxify/coding-interview-patterns-day-4-detect-deadlock-with-ai-assistance-7594d3ffea96?source=rss----5be2e8768d54---4 https://medium.com/p/7594d3ffea96 Tue, 14 Jul 2026 04:11:23 GMT 2026-07-14T04:11:23.059Z <![CDATA[Coding Interview Patterns, Day 3: Finding Spammer(with AI assistance)]]>

This is a commonly asked interview question where you are free to use your AI coding agent.

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]]> https://medium.com/deluxify/coding-interview-patterns-day-3-finding-spammer-with-ai-assistance-96de8f6794be?source=rss----5be2e8768d54---4 https://medium.com/p/96de8f6794be Tue, 07 Jul 2026 18:17:17 GMT 2026-07-07T18:17:17.074Z <![CDATA[System Design Interviews, Day by Day — Day 7: Scalability]]>

S in the CLADS-RI framework is for Scalability. Scalability is a vital part of system design, because it opens up discussions around…

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]]> https://medium.com/deluxify/system-design-interviews-day-by-day-day-7-scalability-ac348abeae8f?source=rss----5be2e8768d54---4 https://medium.com/p/ac348abeae8f Tue, 07 Jul 2026 00:41:54 GMT 2026-07-07T00:41:54.781Z <![CDATA[Coding Interview Patterns, Day 1: LCA of a Binary Tree (and the recursion pattern behind it)]]>

In this series we’ll work through problems grouped by pattern, reasoning about which pattern each problem fits and why. Every problem also…

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]]> https://medium.com/deluxify/coding-interview-patterns-day-1-lca-of-a-binary-tree-and-the-recursion-pattern-behind-it-22ddba35c0c6?source=rss----5be2e8768d54---4 https://medium.com/p/22ddba35c0c6 Thu, 02 Jul 2026 03:29:32 GMT 2026-07-02T03:29:32.005Z <![CDATA[System Design Interviews, Day by Day — Day 5: Availability]]>

A is the Availability in the CLADS-RI framework. Availability is a loaded word, because it does not simply mean that the system is powered…

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]]> https://medium.com/deluxify/system-design-interviews-day-by-day-day-5-availability-2a82af3b1c3c?source=rss----5be2e8768d54---4 https://medium.com/p/2a82af3b1c3c Thu, 02 Jul 2026 01:49:52 GMT 2026-07-02T01:49:52.699Z <![CDATA[System Design Interviews, Day by Day — Day 4: Latency]]>

The L in CLADS-RI: pick an SLA that matches the path, not just ‘as fast as possible’

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]]> https://medium.com/deluxify/system-design-interviews-day-by-day-day-4-latency-48551dcb0cdb?source=rss----5be2e8768d54---4 https://medium.com/p/48551dcb0cdb Wed, 01 Jul 2026 02:17:28 GMT 2026-07-01T02:17:27.133Z <![CDATA[System Design Interviews, Day by Day — Day 3: Consistency]]>

Now that we are on day 3, we will start getting into the inner workings of CLADS-RI and dig deeper into each dimension, one at a time. We…

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]]> https://medium.com/deluxify/system-design-interviews-day-by-day-day-3-consistency-3c9263b8ce24?source=rss----5be2e8768d54---4 https://medium.com/p/3c9263b8ce24 Wed, 01 Jul 2026 00:54:46 GMT 2026-07-06T00:05:13.567Z <![CDATA[System Design Interviews, Day by Day — Day 2: The Tool Chest]]>

Day 1 gave us the four phases — the map of where you are in the interview. Day 2 is what you carry into each one. I’ll walk these in the…

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]]> https://medium.com/deluxify/system-design-interviews-day-by-day-day-2-the-tool-chest-db727d05f7fd?source=rss----5be2e8768d54---4 https://medium.com/p/db727d05f7fd Mon, 29 Jun 2026 00:07:52 GMT 2026-06-29T00:07:52.721Z <![CDATA[System Design Interviews, Day by Day — Day 1: The Framework]]>

System design interviews have a way of feeling bigger than they are. The scope is wide open, the problem is deliberately vague, and if you…

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]]> https://medium.com/deluxify/system-design-interviews-day-by-day-day-1-the-framework-5626e3c725de?source=rss----5be2e8768d54---4 https://medium.com/p/5626e3c725de Sun, 28 Jun 2026 04:53:31 GMT 2026-06-28T04:53:31.657Z