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All topics›JavaScript›Linked lists

Reverse Nodes in k-Group

advancedlayer B9 · Linked lists5 tests

Reverse the list in consecutive blocks of k nodes and return the new head.

  • If fewer than k nodes remain at the end, leave that leftover chunk as it is
  • With k = 1 nothing changes; with k equal to the length the whole list reverses
  • Relink nodes rather than rewriting values

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