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All topics›JavaScript›Linked lists

Reorder List

intermediatelayer B9 · Linked lists5 tests

Rearrange a list n0 -> n1 -> ... -> nk into n0 -> nk -> n1 -> nk-1 -> ..., alternating from the front and the back.

  • Reorder the nodes in place — the function returns nothing
  • Only relink nodes; do not swap their val fields
  • Lists of length 0, 1 or 2 come out unchanged

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