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Merge K Sorted Lists

HardLinked List
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Merge k sorted linked lists into one sorted linked list and return its head.

Constraints
  • 0 <= k <= 10^4
  • Total nodes <= 10^4
Sheets
Blind 75Grind 75NeetCode 150NeetCode 250
merge-k-sorted-lists.cpp
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Custom input (stdin)
Output

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