Computers and Technology, 20.10.2021 14:00 coronaaa7
An array of integers is almost sorted if at most one element can be deleted from it to make it perfectly sorted, ascending. For example, arrays [2, 1, 7], [13], [9, 2]; and [1, 5, 6] are almost sorted because they have 0 or 1 elements out of place. The arrays [4, 2, 1], [1, 2, 6, 4, 3] are not because they have more than one element out of place. Given an array of n unique integers, determine the minimum number of elements to remove so it becomes almost sorted.
Example
arr = [3, 4, 2, 5, 1]
Remove 2 to get arr' = [3, 4, 5, 1] or remove 1 to get arr' = [3, 4, 2, 5), both of which are almost sorted. The minimum number of elements that must be removed in this case is 1.
Function Description
Complete the function
minDeletions in the editor below. minDeletions has the following parameter(s): int arr[n): an unsorted array of integers
Returns:
int: the minimum number of items that must be deleted to create an almost sorted array
Write in Python
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