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How to Solve Adding Two Negabinary Numbers Problem
Master the Adding Two Negabinary Numbers LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsMedium#1073
LeetCode ProblemAdding 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.
ArrayMath
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Problem Breakdown
Understanding the Adding Two Negabinary Numbers Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
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.
MediumProblem #1073
LeetCodeAdding Two Negabinary Numbers
Related Topics
ArrayMath
How Phantom Code Helps
Get real-time assistance for Adding Two Negabinary Numbers problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
arr1 = [1,1,1,1,1], arr2 = [1,0,1]
Output
[1,0,0,0,0]
# Example 2
Input
arr1 = [0], arr2 = [0]
Output
[0]
# Example 3
Input
arr1 = [0], arr2 = [1]
Output
[1]
Constraints
1 <= arr1.length, arr2.length <= 1000
arr1[i] and arr2[i] are 0 or 1
arr1 and arr2 have no leading zeros
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Solve Adding Two Negabinary Numbers — Given two numbers arr1 and arr2 in base -2, return the result of adding them tog...
Here's the optimal approach using Array:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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Frequently Asked Questions
Common questions about solving Adding Two Negabinary Numbers and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Adding Two Negabinary Numbers during interviews?
Phantom Code generates complete solutions instantly with proper complexity analysis, letting you focus on explaining your approach and demonstrating problem-solving skills rather than getting stuck on implementation details during high-pressure situations.
What if the interviewer asks follow-up questions or modifications to problems like Adding Two Negabinary Numbers?
Phantom Code adapts in real-time. Screenshot the modified problem or use audio mode to capture the interviewer's follow-up, and get an updated solution within seconds — including edge cases and optimizations.
Can Phantom Code help me communicate my solution for problems like Adding Two Negabinary Numbers?
Yes. Phantom Code provides step-by-step approach explanations with 3 progressive thoughts, so you can walk through your solution naturally. It also provides time and space complexity analysis to discuss trade-offs.
How does Phantom Code assist with different programming languages for Adding Two Negabinary Numbers type problems?
Phantom Code supports 11 programming languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set your preferred language and get idiomatic solutions.
What coding mistakes does Phantom Code help me avoid during Adding Two Negabinary Numbers interviews?
Phantom Code catches common mistakes like off-by-one errors, missing edge cases, incorrect base conditions, and suboptimal approaches. It provides clean, well-structured code that handles all edge cases.
Is Phantom Code detectable when solving problems like Adding Two Negabinary Numbers during live interviews?
No. Phantom Code runs as an invisible desktop overlay that doesn't appear in screen shares, recordings, or proctoring software. It works with Zoom, HackerRank, CodeSignal, CoderPad, and all major platforms.
How does Phantom Code help when I'm struggling with Adding Two Negabinary Numbers style questions under pressure?
The AI provides structured guidance: first the approach (what algorithm/data structure to use and why), then the implementation with clean code, and finally complexity analysis. This helps you think clearly even under pressure.
Does Phantom Code work for the coding platforms used in Adding Two Negabinary Numbers interviews?
Yes. Phantom Code works with all major coding platforms including LeetCode, HackerRank, CodeSignal, CoderPad, HackerEarth, and any browser-based coding environment.
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