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All topics›JavaScript›Linked lists

Sort List

advancedlayer B9 · Linked lists5 tests

Sort a linked list into non-decreasing order and return the new head.

  • Must run in O(n log n) time — merge sort is the natural fit for linked lists
  • Relink the existing nodes; do not dump the values into an array and sort that
  • Values may be negative and may repeat

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