problem1073

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Published: Feb 15, 2020 License: MIT Imports: 0 Imported by: 0

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1073. Adding Two Negabinary Numbers

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 == [0] or arr[0] == 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. 1 <= arr1.length <= 1000
  2. 1 <= arr2.length <= 1000
  3. arr1 and arr2 have no leading zeros
  4. arr1[i] is 0 or 1
  5. arr2[i] is 0 or 1

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