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Shayan

7 Graph Algorithms You Should Know for Coding Interviews in 2026

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2026-02-04

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Shayan

CF Round 1063 Div 3 - Discussion

2025-11-20

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Shayan

Discussion of CF Round 1063

2025-11-10

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Shayan

AI Models in CP (2727 ELO, ICPC and IOI Gold)

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2025-10-31

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Graphs come up in about 35-40% of coding interviews at major tech companies. Social networks, map routing, dependency chains, web crawlers. If you don't know graph patterns, you'll easily fail the interview.

I've seen candidates stuck on problems like "Number of Islands" because they hadn't practiced grid traversal. These problems become straightforward once you know the patterns.

In this post, I'll show you 7 graph algorithms that cover about 85% of graph-related interview questions. For each

Questions or Discussions.

Ask your questions about this round.

Hey guys, This is Shayan.

As someone passionate about both Competitive Programming and AI, I closely look into the progress that models have had recently in CP contests.

Shockingly, o3 has now achieved the rating of 2727 on Codeforces! (Take a look at their own announcement here) As it was evident, AI cannot replace me in CP. (My max rating is 2751) So I'm not scare, if we just stop the developm