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How to Solve Replace Non-Coprime Numbers in Array Problem
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LeetCode ProblemReplace Non-Coprime Numbers in Array
You are given an array of integers nums. Perform the following steps: Return the final modified array. It can be shown that replacing adjacent non-coprime numbers in any arbitrary order will lead to the same result. The test cases are generated such that the values in the final array are less than or equal to 108. Two values x and y are non-coprime if GCD(x, y) > 1 where GCD(x, y) is the Greatest Common Divisor of x and y.
ArrayMathStackNumber Theory
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Problem Breakdown
Understanding the Replace Non-Coprime Numbers in Array Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given an array of integers nums. Perform the following steps: Return the final modified array. It can be shown that replacing adjacent non-coprime numbers in any arbitrary order will lead to the same result. The test cases are generated such that the values in the final array are less than or equal to 108. Two values x and y are non-coprime if GCD(x, y) > 1 where GCD(x, y) is the Greatest Common Divisor of x and y.
HardProblem #2197
LeetCodeReplace Non-Coprime Numbers in Array
Related Topics
ArrayMathStackNumber Theory
How Phantom Code Helps
Get real-time assistance for Replace Non-Coprime Numbers in Array problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
nums = [6,4,3,2,7,6,2]
Output
[12,7,6]
# Example 2
Input
nums = [2,2,1,1,3,3,3]
Output
[2,1,1,3]
Constraints
1 <= nums.length <= 105
1 <= nums[i] <= 105
The test cases are generated such that the values in the final array are less than or equal to 108.
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Solve Replace Non-Coprime Numbers in Array — You are given an array of integers nums. Perform the following steps: Return the...
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def solve(input):
# Optimal O(n) solution
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Frequently Asked Questions
Common questions about solving Replace Non-Coprime Numbers in Array and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Replace Non-Coprime Numbers in Array 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 Replace Non-Coprime Numbers in Array?
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 Replace Non-Coprime Numbers in Array?
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 Replace Non-Coprime Numbers in Array 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 Replace Non-Coprime Numbers in Array 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 Replace Non-Coprime Numbers in Array 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 Replace Non-Coprime Numbers in Array 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 Replace Non-Coprime Numbers in Array 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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