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How to Solve Relocate Marbles Problem
Master the Relocate Marbles LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsMedium#2766
LeetCode ProblemRelocate Marbles
You are given a 0-indexed integer array nums representing the initial positions of some marbles. You are also given two 0-indexed integer arrays moveFrom and moveTo of equal length. Throughout moveFrom.length steps, you will change the positions of the marbles. On the ith step, you will move all marbles at position moveFrom[i] to position moveTo[i]. After completing all the steps, return the sorted list of occupied positions. Notes:
ArrayHash TableSortingSimulation
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Problem Breakdown
Understanding the Relocate Marbles 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 representing the initial positions of some marbles. You are also given two 0-indexed integer arrays moveFrom and moveTo of equal length. Throughout moveFrom.length steps, you will change the positions of the marbles. On the ith step, you will move all marbles at position moveFrom[i] to position moveTo[i]. After completing all the steps, return the sorted list of occupied positions. Notes:
MediumProblem #2766
LeetCodeRelocate Marbles
Related Topics
ArrayHash TableSortingSimulation
How Phantom Code Helps
Get real-time assistance for Relocate Marbles problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
nums = [1,6,7,8], moveFrom = [1,7,2], moveTo = [2,9,5]
Output
[5,6,8,9]
# Example 2
Input
nums = [1,1,3,3], moveFrom = [1,3], moveTo = [2,2]
Output
[2]
Constraints
1 <= nums.length <= 105
1 <= moveFrom.length <= 105
moveFrom.length == moveTo.length
1 <= nums[i], moveFrom[i], moveTo[i] <= 109
The test cases are generated such that there is at least a marble in moveFrom[i] at the moment we want to apply the ith move.
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Solve Relocate Marbles — You are given a 0-indexed integer array nums representing the initial positions ...
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 Relocate Marbles and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Relocate Marbles 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 Relocate Marbles?
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 Relocate Marbles?
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 Relocate Marbles 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 Relocate Marbles 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 Relocate Marbles 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 Relocate Marbles 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 Relocate Marbles 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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