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- Merge Sort: Counting Inversions
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Merge Sort: Counting Inversions
Merge Sort: Counting Inversions
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For people looking for PHP solution. You can use the merge sort procedure to solve this
Python3 My Solution
JavaScript:
If you're confused about the reason why it's still
timeout
with the usage of merge sort, you can consider to turn the creation of the helper vector to a reference in the parameter list of merge sort funtion to reduce the time spent on creation.JS version
Ref: https://www.geeksforgeeks.org/inversion-count-in-array-using-merge-sort/