Grokking the Coding Interview: Patterns for Coding Questions
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Why do we need the extraNumbers set?

Eric C

Sep 11, 2025

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2

1

Sep 29, 2025

Time complexity analysis

Pete Stenger

Sep 18, 2024

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15

1

Oct 3, 2024

Incorrect Constraint

Pete Stenger

Sep 18, 2024

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25

2

Oct 3, 2024

My solution

Mohammed Dh Abbas

Jul 22, 2024

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13

0

Jul 22, 2024

Alternative Solution

Shane

Jul 14, 2023

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47

0

Jul 14, 2023

The first for-loop where you first iterate through the elements in the array to ...

Duc

Jul 1, 2022

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23

0

Jul 1, 2022

Is there a leetcode question equivalent of this?

SeungJin Kim

Apr 13, 2022

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54

0

Apr 13, 2022

I think the space complexity is O(n) not O(k) because at most you would store n ...

Russell Rogers

Mar 5, 2022

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37

2

Jan 3, 2025