Array Rank Transform
Tata Consultancy Services● EasyOAProblem statement
You are given an integer array arr. Replace each value with its rank after sorting all distinct values in increasing order.
The smallest distinct value has rank 1. Equal values must receive the same rank, and ranks must be consecutive with no gaps.
Return the transformed array in the original order.
Function
arrayRankTransform(arr: int[]) → int[]Examples
Example 1
arr = [40,10,20,30]return = [4,1,2,3]The sorted distinct values are 10,20,30,40, so their ranks are 1,2,3,4.
Example 2
arr = [100,100,100]return = [1,1,1]All values are equal, so all positions receive the same smallest rank.