Distinct Absolute Array Elements

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Question Solve Solutions 
Given a sorted array of size N. Count the number of distinct absolute values present in the array.

Input Format

Input is managed for you

Output Format

Output is managed for you

Constraints

1 <= N <= 10^5
-10^8 <= Arr[i] <= 10^8
The array may contain duplicates

Notice

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2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

Example

Input
6
-3 -2 0 3 4 5
Output
5
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