Depth-First Search pattern

Graphs Overview

Nodes, edges, and why DFS needs a visited set. Watch it run step by step, then write your own pseudocode and get it checked by AI.

  • Concept
  • 1 approach
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Depth-First Search

Concept lesson

The approach

  1. 01 DFS with a visited set O(V + E)O(V) space
Played step by step, with its time and space.

What you will learn

  • The idea behind Depth-First Search, drawn one step at a time
  • DFS with a visited set: O(V + E) time, O(V) space
  • The pseudocode for each approach, its line lit as the animation runs

More Depth-First Search

See Graphs Overview run, step by step

Sign in and this page opens on the animation, with all 18 Depth-First Search problems beside it.

Sign in to open itSee plans

DSA comes with the all labs plan and every ChaiCode batch.