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need the code in java or c++ An array of integers arr, of size n is defined as [a[O], a[1], a[n-1]. You will be given
need the code in java or c++
An array of integers arr, of size n is defined as [a[O], a[1], a[n-1]. You will be given an array of integers to sort. Sorting must first be by frequency of occurrence, then by value. For instance, given an array [4, 5, 6, 5, 4, 3], there is one each of 6's and 3's, and there are two 4's, two 5's. The sorted list is [3, 6, 4, 4, 5, 5 Function Description Complete the function customSort in the editor below. The function must return an array sorted ascending first by frequency of occurrence, then by value within frequency. customSort has the following parameter(s): arr[arr,.arr : an array of integers to sort Constraints 1s ns 2 x 10 Sample Input O 5 1 2 4 Sample Output 0 4 2 2Step by Step Solution
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