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How to Solve Largest Number After Digit Swaps by Parity Problem
Master the Largest Number After Digit Swaps by Parity LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsEasy#2231
LeetCode ProblemLargest Number After Digit Swaps by Parity
You are given a positive integer num. You may swap any two digits of num that have the same parity (i.e. both odd digits or both even digits). Return the largest possible value of num after any number of swaps.
SortingHeap (Priority Queue)
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Problem Breakdown
Understanding the Largest Number After Digit Swaps by Parity Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given a positive integer num. You may swap any two digits of num that have the same parity (i.e. both odd digits or both even digits). Return the largest possible value of num after any number of swaps.
EasyProblem #2231
LeetCodeLargest Number After Digit Swaps by Parity
Related Topics
SortingHeap (Priority Queue)
How Phantom Code Helps
Get real-time assistance for Largest Number After Digit Swaps by Parity problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
num = 1234
Output
3412
# Example 2
Input
num = 65875
Output
87655
Constraints
1 <= num <= 109
How Phantom Code Helps with LeetCode Problems
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Solve Largest Number After Digit Swaps by Parity — You are given a positive integer num. You may swap any two digits of num that ha...
Here's the optimal approach using Sorting:
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 Largest Number After Digit Swaps by Parity and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Largest Number After Digit Swaps by Parity 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 Largest Number After Digit Swaps by Parity?
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 Largest Number After Digit Swaps by Parity?
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 Largest Number After Digit Swaps by Parity 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 Largest Number After Digit Swaps by Parity 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 Largest Number After Digit Swaps by Parity 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 Largest Number After Digit Swaps by Parity 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 Largest Number After Digit Swaps by Parity 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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