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How to Solve Rearrange Array Elements by Sign Problem
Master the Rearrange Array Elements by Sign LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsMedium#2149
LeetCode ProblemRearrange Array Elements by Sign
You are given a 0-indexed integer array nums of even length consisting of an equal number of positive and negative integers. You should return the array of nums such that the the array follows the given conditions: Return the modified array after rearranging the elements to satisfy the aforementioned conditions.
ArrayTwo PointersSimulation
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Problem Breakdown
Understanding the Rearrange Array Elements by Sign Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given a 0-indexed integer array nums of even length consisting of an equal number of positive and negative integers. You should return the array of nums such that the the array follows the given conditions: Return the modified array after rearranging the elements to satisfy the aforementioned conditions.
MediumProblem #2149
LeetCodeRearrange Array Elements by Sign
Related Topics
ArrayTwo PointersSimulation
How Phantom Code Helps
Get real-time assistance for Rearrange Array Elements by Sign problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
nums = [3,1,-2,-5,2,-4]
Output
[3,-2,1,-5,2,-4]
# Example 2
Input
nums = [-1,1]
Output
[1,-1]
Constraints
2 <= nums.length <= 2 * 105
nums.length is even
1 <= |nums[i]| <= 105
nums consists of equal number of positive and negative integers.
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Solve Rearrange Array Elements by Sign — You are given a 0-indexed integer array nums of even length consisting of an equ...
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 Rearrange Array Elements by Sign and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Rearrange Array Elements by Sign 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 Rearrange Array Elements by Sign?
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 Rearrange Array Elements by Sign?
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 Rearrange Array Elements by Sign 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 Rearrange Array Elements by Sign 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 Rearrange Array Elements by Sign 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 Rearrange Array Elements by Sign 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 Rearrange Array Elements by Sign 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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