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title: "Discussion on \"How to find the longest substring without duplicates in characters - Python solution\" | Hashnode"
description: "Discussion on \"How to find the longest substring without duplicates in characters - Python solution\". Photo by Sebastian Herrmann on Unsplash\nCoding challenges can be head-scratching most of the time 😏. Well, for the most part, they require thorough understanding of the problem.  This might involve formulating a use case and manually working through..."
url: "https://hashnode.com/posts/how-to-find-the-longest-substring-without-duplicates-in-characters-python-solution/5f4c2a4d3a844e5996537b47"
---

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# [How to find the longest substring without duplicates in characters - Python solution](https://blog.nextwebb.tech/how-to-find-the-longest-substring-without-duplicates-in-characters-python-solution?utm_source=hashnode&utm_medium=feed)

Photo by Sebastian Herrmann on Unsplash Coding challenges can be head-scratching most of the time 😏. Well, for the most part, they require thorough understanding of the problem. This might involve formulating a use case and manually working through...

Aug 30, 2020 · 5 min read · blog.nextwebb.tech  
Updated Oct 28, 2020  
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## Written by

[Nextwebb](https://hashnode.com/@nextwebb)

@nextwebb · Worldwide

  
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Software engineer , Open-source contributor && Community lead :)

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## Responses 1

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[Bolaji Ayodeji](https://hashnode.com/@bolajiayodeji)

[Aug 31, 2020](https://hashnode.com/posts/how-to-find-the-longest-substring-without-duplicates-in-characters-python-solution/5f4c2a4d3a844e5996537b47/comment/5f4c92e63a844e5996537d75)

Interesting read, thanks for sharing!

[Nextwebb](https://hashnode.com/@nextwebb)

[Aug 31, 2020](https://hashnode.com/posts/how-to-find-the-longest-substring-without-duplicates-in-characters-python-solution/5f4c2a4d3a844e5996537b47/comment/5f4c92e63a844e5996537d75#reply-5f4ce82436a5d26bcd5e727a)

Thanks Bolaji