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Practice Maximum Median Sum of Subsequences of Size 3

Master the Maximum Median Sum of Subsequences of Size 3 LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.

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Medium#3627
LeetCode Problem

Maximum Median Sum of Subsequences of Size 3

You are given an integer array nums with a length divisible by 3. You want to make the array empty in steps. In each step, you can select any three elements from the array, compute their median, and remove the selected elements from the array. The median of an odd-length sequence is defined as the middle element of the sequence when it is sorted in non-decreasing order. Return the maximum possible sum of the medians computed from the selected elements.

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Problem Breakdown

Understanding the Maximum Median Sum of Subsequences of Size 3 Problem

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

Problem Statement

You are given an integer array nums with a length divisible by 3. You want to make the array empty in steps. In each step, you can select any three elements from the array, compute their median, and remove the selected elements from the array. The median of an odd-length sequence is defined as the middle element of the sequence when it is sorted in non-decreasing order. Return the maximum possible sum of the medians computed from the selected elements.

Source: Maximum Median Sum of Subsequences of Size 3 on LeetCode. Use the original task for its coding environment and submissions.

MediumProblem #3627
LeetCode

Maximum Median Sum of Subsequences of Size 3

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How PhantomCodeAI Helps

Get real-time assistance for Maximum Median Sum of Subsequences of Size 3 problems during coding interviews. PhantomCodeAI provides instant solutions and explanations.

Examples

# Example 1

Input
nums = [2,1,3,2,1,3]
Output
5

# Example 2

Input
nums = [1,1,10,10,10,10]
Output
20

Constraints

1 <= nums.length <= 5 * 10^5
nums.length % 3 == 0
1 <= nums[i] <= 10^9

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Frequently Asked Questions

Common questions about solving Maximum Median Sum of Subsequences of Size 3 and using PhantomCodeAI during coding interviews.

How does PhantomCodeAI help with LeetCode problems during a coding interview?
PhantomCodeAI reads the problem from a screenshot or listens to it via audio, then generates a complete solution with a step-by-step approach and time/space complexity, so you can focus on explaining your reasoning rather than getting stuck on implementation.
Which programming languages does PhantomCodeAI support?
11 languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set a preferred language to get idiomatic solutions.
Does PhantomCodeAI work with HackerRank, CodeSignal, and CoderPad?
Yes — it works alongside LeetCode, HackerRank, CodeSignal, CoderPad, and HackerEarth, plus any browser-based coding environment.
Can PhantomCodeAI handle follow-up questions and modifications?
Yes. Capture the modified problem by screenshot or audio and get an updated solution within seconds, including new edge cases and optimizations.
Is PhantomCodeAI detectable during live interviews?
PhantomCodeAI runs as a native desktop overlay that does not appear in screen shares, recordings, or proctoring software, and works with Zoom, Google Meet, Microsoft Teams, and major coding platforms.
Should I still practice these problems on my own first?
Yes. The most durable preparation is solving problems unaided first, then using AI afterward to review your approach, complexity, and missed edge cases — use it to debrief and learn, not to skip the reps.
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