Grokking the Coding Interview: Patterns for Coding Questions
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mil o
[JS] Why not create a set and compare the size to the array.length?

mil o

Dec 16, 2024

Is there a reason why this would not be a good solution? Maybe I am overlooking something here

const uniqueSet = new Set(nums);

if (uniqueSet.size !== nums.length) {
	return true; 
}

1

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Andre Abtahi
Andre Abtahi9 months ago

that's what i would have done!

H
heliamarasinghe 4 months ago

This is exactly what I did since we dont need to know that numbers are duplicating

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Problem Statement

Examples

Solution

Approach 1: Brute Force

Approach 2: Using Hash Set

Approach 3: Sorting