Count Inversions in an Array | Explained with Animation | Merge Sort Method
#dsa #datastructures #countinversions #mergesort #array #coding #programming #javacoding #cppprogramming #python #animation #interviewquestions #shreyaansjain
In this video, we learn how to Count Inversions in an Array using the Merge Sort approach.
💡 What is an Inversion?
An inversion in an array occurs when a pair of elements is out of order.
Example: In [2, 4, 1, 3, 5] the inversion pairs are (2,1), (4,1), (4,3).
In this animation, I explain:
• What an inversion means in simple words
• How to count inversions using the merge sort technique
• Step-by-step clear visualization
This is an important concept in DSA and commonly asked in coding interviews at companies like Amazon, Google, Microsoft, etc.
Algorithm Animations Playlist Link: • Algorithms Animations
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