leetcode1018

 1 class Solution(object):
 2     def prefixesDivBy5(self, A: 'List[int]') -> 'List[bool]':
 3         n = len(A)
 4         result = list()
 5         preNum = 0
 6         for i in range(n):
 7             binNum = A[i]
 8             X = preNum * 2 + binNum
 9             if X % 5 == 0:
10                 result.append(True)
11             else:
12                 result.append(False)
13             preNum = X
14         return result