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HomeLeetCode ProblemsNumber Of Rectangles That Can Form The Largest Square
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How to Solve Number Of Rectangles That Can Form The Largest Square Problem

Master the Number Of Rectangles That Can Form The Largest Square 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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Easy#1725
LeetCode Problem

Number Of Rectangles That Can Form The Largest Square

You are given an array rectangles where rectangles[i] = [li, wi] represents the ith rectangle of length li and width wi. You can cut the ith rectangle to form a square with a side length of k if both k <= li and k <= wi. For example, if you have a rectangle [4,6], you can cut it to get a square with a side length of at most 4. Let maxLen be the side length of the largest square you can obtain from any of the given rectangles. Return the number of rectangles that can make a square with a side length of maxLen.

Array

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Problem Breakdown

Understanding the Number Of Rectangles That Can Form The Largest Square Problem

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

Problem Statement

You are given an array rectangles where rectangles[i] = [li, wi] represents the ith rectangle of length li and width wi. You can cut the ith rectangle to form a square with a side length of k if both k <= li and k <= wi. For example, if you have a rectangle [4,6], you can cut it to get a square with a side length of at most 4. Let maxLen be the side length of the largest square you can obtain from any of the given rectangles. Return the number of rectangles that can make a square with a side length of maxLen.

EasyProblem #1725
LeetCode

Number Of Rectangles That Can Form The Largest Square

Related Topics

Array

How Phantom Code Helps

Get real-time assistance for Number Of Rectangles That Can Form The Largest Square problems during coding interviews. Phantom Code provides instant solutions and explanations.

Examples

# Example 1

Input
rectangles = [[5,8],[3,9],[5,12],[16,5]]
Output
3

# Example 2

Input
rectangles = [[2,3],[3,7],[4,3],[3,7]]
Output
3

Constraints

1 <= rectangles.length <= 1000
rectangles[i].length == 2
1 <= li, wi <= 109
li != wi

How Phantom Code Helps with LeetCode Problems

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Solve Number Of Rectangles That Can Form The Largest Square — You are given an array rectangles where rectangles[i] = [li, wi] represents the ...

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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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 Number Of Rectangles That Can Form The Largest Square and using Phantom Code during coding interviews.

How does Phantom Code help me solve coding problems like Number Of Rectangles That Can Form The Largest Square 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 Number Of Rectangles That Can Form The Largest Square?
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 Number Of Rectangles That Can Form The Largest Square?
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 Number Of Rectangles That Can Form The Largest Square 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 Number Of Rectangles That Can Form The Largest Square 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 Number Of Rectangles That Can Form The Largest Square 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 Number Of Rectangles That Can Form The Largest Square 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 Number Of Rectangles That Can Form The Largest Square 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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