│ Given a sorted array, A, with possibly duplicated elements, find the │ indices of the first and last occurrences of a target element, x. │ Return -1 if the target is not found. │ Example: │Input: A = [1,3,3,5,7,8,9,9,9,15], target = 9 │Output: [6,8] │Input: A = [100, 150, 150, 153], target = 150 │Output: [1,2] │Input: A = [1,2,3,4,5,6,10], target = 9 │Output: [-1, -1] │ │ Here is a function signature example: │class Solution: │ def getRange(self, arr, target): │ # Fill this in. │ │# Test program │arr = [1, 2, 2, 2, 2, 3, 4, 7, 8, 8] │x = 2 │print(Solution().getRange(arr, x)) │# [1, 4]