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How to Solve Is Graph Bipartite? Problem

Master the Is Graph Bipartite? LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.

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Medium#785

LeetCode Problem

Is Graph Bipartite?

There is an undirected graph with n nodes, where each node is numbered between 0 and n - 1. You are given a 2D array graph, where graph[u] is an array of nodes that node u is adjacent to. More formally, for each v in graph[u], there is an undirected edge between node u and node v. The graph has the following properties: A graph is bipartite if the nodes can be partitioned into two independent sets A and B such that every edge in the graph connects a node in set A and a node in set B. Return true if and only if it is bipartite.

Depth-First SearchBreadth-First SearchUnion FindGraph

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Problem Breakdown

Understanding the Is Graph Bipartite? Problem

Let's break down this LeetCode problem and understand what makes it challenging in interview settings.

Problem Statement

MediumProblem #785

LeetCode

Is Graph Bipartite?

How Phantom Code Helps

Get real-time assistance for Is Graph Bipartite? problems during coding interviews. Phantom Code provides instant solutions and explanations.

Examples

# Example 1

Input

graph = [[1,2,3],[0,2],[0,1,3],[0,2]]

Output

false

# Example 2

Input

graph = [[1,3],[0,2],[1,3],[0,2]]

Output

true

Constraints

graph.length == n

1 <= n <= 100

0 <= graph[u].length < n

0 <= graph[u][i] <= n - 1

graph[u] does not contain u.

All the values of graph[u] are unique.

If graph[u] contains v, then graph[v] contains u.

How Phantom Code Helps with LeetCode Problems

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Solve Is Graph Bipartite? — There is an undirected graph with n nodes, where each node is numbered between 0...

Here's the optimal approach using Depth-First Search:

def solve(input):

# Optimal O(n) solution

return result

Time: O(n) | Space: O(n)

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Undetectability Checklist

Run compatibility test before interviews

Use recommended Zoom version settings

Enable advanced screen capture options

Verify native desktop architecture

Test with screen recording software

Platform Compatibility

Zoom

Supported

Google Meet

Supported

HackerRank

Supported

CodeSignal

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CoderPad

Supported

Teams

Supported

User results and traction

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Undetectability and technical details

Our native desktop architecture avoids common detection vectors used by browser extensions. We provide a clear checklist so you can run basic checks and confirm the app will be invisible.

Platform compatibility and limitations

We work with Zoom, HackerRank, CodeSignal, CoderPad and other web-based platforms. Check the compatibility note and request a browser link if a specific desktop app is unsupported.

Frequently Asked Questions

Common questions about solving Is Graph Bipartite? and using Phantom Code during coding interviews.

How does Phantom Code help me solve coding problems like Is Graph Bipartite? 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 Is Graph Bipartite??

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 Is Graph Bipartite??

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 Is Graph Bipartite? 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 Is Graph Bipartite? 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 Is Graph Bipartite? 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 Is Graph Bipartite? 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 Is Graph Bipartite? 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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