 1073. Adding Two Negabinary Numbers

# 1073. Adding Two Negabinary Numbers

## 刷题内容

Given two numbers arr1 and arr2 in base -2, return the result of adding them together.

Each number is given in array format:  as an array of 0s and 1s, from most significant bit to least significant bit.  For example, arr = [1,1,0,1] represents the number (-2)^3 + (-2)^2 + (-2)^0 = -3.  A number arr in array format is also guaranteed to have no leading zeros: either arr ==  or arr == 1.

Return the result of adding arr1 and arr2 in the same format: as an array of 0s and 1s with no leading zeros.

Example 1:

Input: arr1 = [1,1,1,1,1], arr2 = [1,0,1]
Output: [1,0,0,0,0]
Explanation: arr1 represents 11, arr2 represents 5, the output represents 16.

Note:

1 <= arr1.length <= 1000
1 <= arr2.length <= 1000
arr1 and arr2 have no leading zeros
arr1[i] is 0 or 1
arr2[i] is 0 or 1

- 时间复杂度: O(N)- 空间复杂度: O(1)

python不需要关注大数,直接硬刚, 复用1017题的代码

`python
class Solution:
def addNegabinary(self, arr1: List[int], arr2: List[int]) -> List[int]:
def toNegativeBase(n, neg_base):
if n == 0:
return '0'
res = ''
while n:
remainder = n % (neg_base)