Top K Frequent Elements
beginnerGiven a non-empty integer array arr[]. Your task is to find and return the top k elements which have the highest frequency in the array.
K2
Result[]
Initializing
1
[0]1
[1]1
[2]2
[3]2
[4]3
[5]Frequency Map
empty
Buckets (index = frequency)
1×—
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