---
title: "Discussion on \"Day 4 of My 30-Day DSA Journey — Hashing Problems\" | Hashnode"
description: "Discussion on \"Day 4 of My 30-Day DSA Journey — Hashing Problems\". Day 4 of my DSA journey with JavaScript: solving Majority Element and First Unique Character using hashing and frequency counting."
url: "https://hashnode.com/posts/day-4-of-my-30-day-dsa-journey-hashing-problems/6a99b28918d4d96320ad472a"
---

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# [Day 4 of My 30-Day DSA Journey — Hashing Problems](https://abi-blog.hashnode.dev/day-4-of-my-30-day-dsa-journey-hashing-problems?utm_source=hashnode&utm_medium=feed)

Day 4 of my DSA journey with JavaScript: solving Majority Element and First Unique Character using hashing and frequency counting.

Sep 3 · 10 min read · abi-blog.hashnode.dev  
Updated Sep 5  
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-   [#dsa](https://hashnode.com/tag/dsa)
-   [#leetcode](https://hashnode.com/tag/leetcode)
-   [#hashing](https://hashnode.com/tag/hashing)
-   [#frequency](https://hashnode.com/tag/frequency)
-   [#dsajourney](https://hashnode.com/tag/dsajourney)
-   [#javascript](https://hashnode.com/tag/javascript)
-   [#algorithms](https://hashnode.com/tag/algorithms)
-   [#datastructure](https://hashnode.com/tag/datastructure)

## Written by

[Abirami Sri](https://hashnode.com/@abiramisri)

@abiramisri

  
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