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Depth-First Search (DFS)

9 min · Swift examples

Dive deep along one path before backtracking — great for exploring all reachable nodes.

Examples in:PythonJavaScriptTypeScriptJavaC++CC#KotlinGoOCamlRubyPHPDartElixirRustScalaSwift
Swift · Depth-First Search (DFS)0/5 cleared

Enemy 1 of 5

DFS uses recursion or an explicit stack to go as far as possible, then back up. Mark nodes visited so you don't loop forever.

Counting connected components in a grid is a classic DFS job.

You
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