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How to Solve Length of the Longest Increasing Path Problem
Master the Length of the Longest Increasing Path LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsHard#3288
LeetCode ProblemLength of the Longest Increasing Path
You are given a 2D array of integers coordinates of length n and an integer k, where 0 <= k < n. coordinates[i] = [xi, yi] indicates the point (xi, yi) in a 2D plane. An increasing path of length m is defined as a list of points (x1, y1), (x2, y2), (x3, y3), ..., (xm, ym) such that: Return the maximum length of an increasing path that contains coordinates[k].
ArrayBinary SearchSorting
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Problem Breakdown
Understanding the Length of the Longest Increasing Path Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given a 2D array of integers coordinates of length n and an integer k, where 0 <= k < n. coordinates[i] = [xi, yi] indicates the point (xi, yi) in a 2D plane. An increasing path of length m is defined as a list of points (x1, y1), (x2, y2), (x3, y3), ..., (xm, ym) such that: Return the maximum length of an increasing path that contains coordinates[k].
HardProblem #3288
LeetCodeLength of the Longest Increasing Path
Related Topics
ArrayBinary SearchSorting
How Phantom Code Helps
Get real-time assistance for Length of the Longest Increasing Path problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
coordinates = [[3,1],[2,2],[4,1],[0,0],[5,3]], k = 1
Output
3
# Example 2
Input
coordinates = [[2,1],[7,0],[5,6]], k = 2
Output
2
Constraints
1 <= n == coordinates.length <= 105
coordinates[i].length == 2
0 <= coordinates[i][0], coordinates[i][1] <= 109
All elements in coordinates are distinct.
0 <= k <= n - 1
How Phantom Code Helps with LeetCode Problems
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Solve Length of the Longest Increasing Path — You are given a 2D array of integers coordinates of length n and an integer k, w...
Here's the optimal approach using Array:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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HackerRank
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Frequently Asked Questions
Common questions about solving Length of the Longest Increasing Path and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Length of the Longest Increasing Path 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 Length of the Longest Increasing Path?
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 Length of the Longest Increasing Path?
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 Length of the Longest Increasing Path 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 Length of the Longest Increasing Path 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 Length of the Longest Increasing Path 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 Length of the Longest Increasing Path 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 Length of the Longest Increasing Path 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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