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How to Solve Determine the Minimum Sum of a k-avoiding Array Problem
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Start Free for WindowsMedium#2829
LeetCode ProblemDetermine the Minimum Sum of a k-avoiding Array
You are given two integers, n and k. An array of distinct positive integers is called a k-avoiding array if there does not exist any pair of distinct elements that sum to k. Return the minimum possible sum of a k-avoiding array of length n.
MathGreedy
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Problem Breakdown
Understanding the Determine the Minimum Sum of a k-avoiding Array Problem
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Problem Statement
You are given two integers, n and k. An array of distinct positive integers is called a k-avoiding array if there does not exist any pair of distinct elements that sum to k. Return the minimum possible sum of a k-avoiding array of length n.
MediumProblem #2829
LeetCodeDetermine the Minimum Sum of a k-avoiding Array
Related Topics
MathGreedy
How Phantom Code Helps
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Examples
# Example 1
Input
n = 5, k = 4
Output
18
# Example 2
Input
n = 2, k = 6
Output
3
Constraints
1 <= n, k <= 50
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Solve Determine the Minimum Sum of a k-avoiding Array — You are given two integers, n and k. An array of distinct positive integers is c...
Here's the optimal approach using Math:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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Frequently Asked Questions
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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.
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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.
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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.
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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 Determine the Minimum Sum of a k-avoiding Array 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.
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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 Determine the Minimum Sum of a k-avoiding Array 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 Determine the Minimum Sum of a k-avoiding Array 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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