Two Sum Find Duplicate Find Repeating Missing Values Hashing Problems

This is Lecture 37 of DSA Placement Series. Hashing Problems - Part 1. Want to study for Tech Placements/Internships from us ...

In this video, we cover some of the most important

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In this video, I break down how to use HashMap to optimize your brute force solutions — turning O(n²) into O(n) in one pass.

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Problem link: https://leetcode.com/problems/find-missing-and-repeated-values/description/?envType=daily-question&envId=2025-03 ...

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Tackle the Most Frequently asked coding interview question! LeetCode

Full tutorial for a FAST solution for the LeetCode

This video explains how to

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Super helpful resources: https://nikoo28.github.io/all-my-links/ Using some basic mathematics or a simple XOR operator can help ...

Two sums problem