Number of zeros in a binary array

class Solution:
    def countZeroes(self, arr, N):
        start = 0
        end = N-1;
        
        if (arr[0] == 0): return N
        if (arr[0] == 1 and arr[1] == 0): return N-1
        if (arr[N-1] == 1): return 0
        
        while (start <= end):
            mid = start + (end-start)//2
            if (arr[mid] == 0 and arr[mid-1] == 1): return N-mid
            if (arr[mid] == 1 and arr[mid+1] == 0): return N-(mid+1)
            
            if (arr[mid] == 1 and arr[mid+1] == 1): start = mid+1
            else: end = mid-1
        return N

Source: grepper.com

Similar codes

31 votes117 views6 answers
Java for loop example
Java
0 vote128 views1 answer
Java tester si un caractere est une lettre
Java
1 vote140 views1 answer
Java rgb to color
Java
0 vote127 views1 answer
Android java how to stop activity from opening twice programatically
Java
1 vote130 views1 answer
Java convert java.util.Date to LocalDate
Java
0 vote139 views1 answer
Android list newline
Java
0 vote142 views2 answers
Android studio pass value to another activity
Java
0 vote138 views1 answer
Fast Search in java
Java
0 vote131 views1 answer
Longadder
Java
5 votes132 views2 answers
How to import java.util
Java