Leetcode 1018. Binary Prefix Divisible By 5

2021-08-10 10:40:53 浏览数 (1)

文章作者:Tyan 博客:noahsnail.com | CSDN | 简书

1. Description

2. Solution

**解析:**Version 1,每次数组索引向右移动,相当于当前数字左移一位,因此当前数值应在上一数值的基础上乘以2,加上当前位。

  • Version 1
代码语言:javascript复制
class Solution:
    def prefixesDivBy5(self, nums: List[int]) -> List[bool]:
        n = len(nums)
        pre = 0
        result = [0] * n
        for i in range(n):
            current = pre * 2   nums[i]
            #current = (pre << 1)   nums[i]
            result.append(current % 5 == 0)
            pre = current
        return result

Reference

  1. https://leetcode.com/problems/binary-prefix-divisible-by-5/

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