The Polymathic Engineer

The Polymathic Engineer

The Depth-First Search Pattern: Exploring Trees and Graphs

How to systematically search through all paths by going as deep as possible before backtracking

Franco Fernando's avatar
Franco Fernando
Jun 13, 2026
∙ Paid

Hi Friends,

Welcome to the 177th issue of the Polymathic Engineer newsletter.

This is the final article in our series on recursion. In the last article, we looked at the divide-and-conquer pattern, which breaks a problem into independent subproblems, solves each one, and combines the results. This time, we examine depth-first search, a pattern for traver…

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