3452. Sum of Good Numbers

Given an array of integers nums and an integer k, an element nums[i] is considered good if it is strictly greater than the elements at indices i - k and i + k (if those indices exist). If neither of these indices exists, nums[i] is still considered good. Return the sum of all the good elements in the array. Example 1: Input: nums = [1,3,2,1,5,4], k = 2 Output: 12 Explanation: The good numb