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Count the Zeros
Easy Accuracy: 54.06% Submissions: 17248 Points: 2

Given an array of size N consisting of only 0's and 1's. The array is sorted in such a manner that all the 1's are placed first and then they are followed by all the 0's. Find the count of all the 0's.

Example 1:

Input:
N = 12
Arr[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0}
Output: 3
Explanation: There are 3 0's in the given array.


Example 2:

Input:
N = 5
Arr[] = {0, 0, 0, 0, 0}
Output: 5
Explanation: There are 5 0's in the array.

You don't need to read input or print anything. Your task is to complete the function countZeroes() which takes the array of integers arr[] and its size as input parameters and returns the number of zeroes present in the array.

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

Constraints:
1 <= N <= 105
0 <= Arr[i] <= 1