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How to Solve Friend Requests II: Who Has the Most Friends Problem
Master the Friend Requests II: Who Has the Most Friends LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
Phantom Code generates complete solutions and debugging hints that you can use while explaining your approach, so you stay calm and in control.
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Start Free for WindowsMedium#602
LeetCode ProblemFriend Requests II: Who Has the Most Friends
Table: RequestAccepted Write a solution to find the people who have the most friends and the most friends number. The test cases are generated so that only one person has the most friends. The result format is in the following example. Example 1: Follow up: In the real world, multiple people could have the same most number of friends. Could you find all these people in this case?
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Problem Breakdown
Understanding the Friend Requests II: Who Has the Most Friends Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
Table: RequestAccepted Write a solution to find the people who have the most friends and the most friends number. The test cases are generated so that only one person has the most friends. The result format is in the following example. Example 1: Follow up: In the real world, multiple people could have the same most number of friends. Could you find all these people in this case?
MediumProblem #602
LeetCodeFriend Requests II: Who Has the Most Friends
Related Topics
Database
How Phantom Code Helps
Get real-time assistance for Friend Requests II: Who Has the Most Friends problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
—
Output
—
# Example 2
Input
RequestAccepted table: +--------------+-------------+-------------+ | requester_id | accepter_id | accept_date | +--------------+-------------+-------------+ | 1 | 2 | 2016/06/03 | | 1 | 3 | 2016/06/08 | | 2 | 3 | 2016/06/08 | | 3 | 4 | 2016/06/09 | +--------------+-------------+-------------+
Output
+----+-----+ | id | num | +----+-----+ | 3 | 3 | +----+-----+
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Solve Friend Requests II: Who Has the Most Friends — Table: RequestAccepted Write a solution to find the people who have the most fri...
Here's the optimal approach using Database:
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 Friend Requests II: Who Has the Most Friends and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Friend Requests II: Who Has the Most Friends 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 Friend Requests II: Who Has the Most Friends?
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 Friend Requests II: Who Has the Most Friends?
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 Friend Requests II: Who Has the Most Friends 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 Friend Requests II: Who Has the Most Friends 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 Friend Requests II: Who Has the Most Friends 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 Friend Requests II: Who Has the Most Friends 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 Friend Requests II: Who Has the Most Friends 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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