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LLM and Graph Traversal
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LLM and Graph Traversal

MediumPython

Problem

Explain what an LLM is and solve a BFS/DFS style graph traversal problem.

An LLM is a neural network trained to predict tokens from context. For the coding task, implement BFS traversal on a directed graph represented by an adjacency-list dictionary.

Input and Output

graph maps each vertex to a list of neighboring vertices, and start is a vertex in the graph. Return vertices in BFS order, visiting neighbors in the order provided. Each vertex must appear at most once.

Constraints

  • 1 <= number of vertices <= 10^4
  • 0 <= number of directed edges <= 2 * 10^4
  • Every vertex appears as a key in graph
  • start is a vertex in graph
  • Neighbor lists preserve the required traversal order

Function Signature

def bfs_traversal(graph, start):
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