Check if the Array is Dominant Array - Common Coding Interview Question

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Check if the Array is a dominant array or not
What is dominant Array
An element X is said to be dominant if the frequency of X in A is strictly greater than the frequency of any other element in the A. For example, if A = [ 2 , 1 , 4 , 4 , 4 ] A = [2, 1, 4, 4, 4] A=[2,1,4,4,4] then 4 is a dominant element since its frequency is higher than the frequency of any other element in A.

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