根据题目的hint,使用单层循环计算: class Solution(object): def prefixesDivBy5(self, A: 'List[int]') -> 'List[bool]': n = len(A) result = list() preNum = 0 for i in range(n): binNum = A[i] X = preNum * 2 + binNum if X % 5 == 0: result.append(True) else: result.appen…