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Number of occurrence
Basic Accuracy: 61.05% Submissions: 8219 Points: 1

Given a sorted array Arr of size N and a number X, you need to find the number of occurrences of X in Arr.

Example 1:

Input:
N = 7, X = 2
Arr[] = {1, 1, 2, 2, 2, 2, 3}
Output: 4
Explanation: 2 occurs 4 times in the
given array.

Example 2:

Input:
N = 7, X = 4
Arr[] = {1, 1, 2, 2, 2, 2, 3}
Output: 0
Explanation: 4 is not present in the
given array.

Your Task:
You don't need to read input or print anything. Your task is to complete the function count() which takes the array of integers arr, and x as parameters and returns an integer denoting the answer.

Expected Time Complexity: O(logN)
Expected Auxiliary Space: O(1)

Constraints:
1 ≤ N ≤ 105
1 ≤ Arr[i] ≤ 106
1 ≤ X ≤ 106

 

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