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All topics›JavaScript›Linked lists

Merge Two Sorted Lists

beginnerlayer B9 · Linked lists5 tests

You are handed the heads of two linked lists, each already sorted in non-decreasing order. Splice them into one sorted list and return its head.

  • Build the answer by re-linking the existing nodes, not by copying values into an array
  • Either list may be empty
  • Equal values may appear in either order relative to each other

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