Count frequency of each element in an array
[Question]: Count frequency of each element in a given array .For example: Given Array [5,4,5,5,6,9,5,6]. Output is [4: 1, 6: 2, 9: 1, 5: 4] Which indicates 4 is 1 time, 6 is 2 times and so on…#Approach 1: – Use HashMap /Dictionary . Because dictionary key are unique so we can use of that …