Count Unique Values

JUNIOR

SoftServeCiklum

Write a function that counts the number of unique values in a sorted array.

Example:

Input: [1, 1, 1, 2, 3, 3, 4, 5, 5, 5]
Output: 5

Input 1:{"arr":[1,1,1,2,3,3,4,5,5,5]}

Output 1:5

Input 2:{"arr":[1,2,3,4,5]}

Output 2:5

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