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Code on a monitor representing graph traversal practice

Posted inCoding Interview Walkthroughs Interview Preparation

Graph BFS vs DFS for Coding Interviews: 2026

Master BFS and DFS for coding interviews with reusable templates and worked solutions for Number of Islands, Rotting Oranges and Course Schedule.

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NiraswaAI October 13, 2026

Code editor on laptop screen — topological sort coding interview pattern

Posted inCoding Interview Walkthroughs Coding Interviews

Topological Sort Pattern for Coding Interviews 2026

Master the Topological Sort pattern: spot the hidden DAG, memorize the Kahn’s algorithm Java template, and get cycle detection free. 4 classic problems.

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NiraswaAI August 22, 2026