Graphs

9 min · Python examples

Represent nodes and edges with an adjacency list, then traverse to explore connections.

Examples in:Python JavaScript TypeScript Java C++C C#Kotlin Go OCaml Ruby PHP Dart Elixir Rust Scala Swift

Techniques · Graphs0/5 cleared

Enemy 1 of 5

A graph is a set of nodes (vertices) and edges between them. An adjacency list maps each node to its neighbors — perfect for sparse graphs and interview problems.

Once you have adjacency, BFS and DFS from a start node count reachable nodes, detect cycles, or find paths.

You

Syntax Skeleton

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