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All topics›JavaScript›Graphs: representation

Clone Graph

intermediatelayer I4 · Graphs: representation5 tests

Given a reference to one node of a connected, undirected graph, return a deep copy of the whole graph.

  • A node is new GNode(val, neighbors) — neighbors defaults to an empty array
  • The copy must contain entirely new node objects — not one node may be shared with the original
  • The shape must match exactly: same values, same neighbour relationships
  • cloneGraph(null) returns null
  • GNode, a builder buildGraph, a serialiser serialize and collectNodes are already written for you

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