Merge K Sorted Linked Lists - Leetcode 23

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leetcode, coding interview question, data structures, data structures and algorithms, faang
  1. Greg Hogg
  2. leetcode
  3. coding interview question
  4. data structures
  5. data structures and algorithms
  6. backtracking
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Комментарии
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GregHogg
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I mean this question looks very idiotic imo.
Obviously the solution would be to use priority queue but don’t you think why to have so much effort? We can get the answer in O(N) where N= sum of all elements.
You would ask how?
Basically we do offline heapify of all the elements and get the priority queue in O(N). Now simply pop in O(1)😅

hit
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You put 2 dashes while the third dash is supposed to be the number 1. That's confusing af.

PaulSebastianM
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What "all of these elements"? 😕

PaulSebastianM
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Don’t you think it’s the easiest problem on lt?

janfraczak
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Can’t you create a new list containing all the lists and sort it with sort function?

kevinitaliya