Maximum Element After Decreasing and Rearranging
To satisfy the given conditions, we first sort the array arr
to make sure the differences between adjacent elements can be handled more easily. Then we iterate through the sorted array and adjust the values as needed to ensure that the absolute difference between any two adjacent elements is less than or equal to 1.
Here’s the code:


Explanation:
 We first sort the array to allow easier handling of adjacent elements.
 The first element must be 1, so we set it explicitly.
 We then iterate through the rest of the sorted array, checking the difference between adjacent elements. If the difference is greater than 1, we set the current element to one more than the previous element, as this will satisfy the given conditions.
 Finally, we return the last element in the adjusted array, as it will be the largest element.