# What data structure am I going to write about next?

**URL:** <https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887>\
**Category:** Uncategorized\
**Created:** [January 28, 2026, 3:12am UTC](https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887 "2026-01-28T03:12:40Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![kirupa](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupa/32/11616_2.png) [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Post date:** [January 28, 2026, 3:12am UTC](https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887/1 "2026-01-28T03:12:40Z")

</div>

After a break, I’m back to writing more Data Structures / Algorithms content that you all have been asking me about. Based on the below image, can anybody guess what data structure I am about to write about next? 🤓 🌴

 ![image](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/c/4/c466a5ad930470346b25f38cdad51943d9ad96a6.jpeg)

---

<div class="post-metadata">

**Author:** ![krilnon](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/krilnon/32/34_2.png) [@krilnon](https://forum.kirupa.com/u/krilnon)\
**Post date:** [January 29, 2026, 2:16pm UTC](https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887/2 "2026-01-29T14:16:19Z")

</div>

Merkle trees.

---

<div class="post-metadata">

**Author:** ![kirupa](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupa/32/11616_2.png) [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Post date:** [January 29, 2026, 5:19pm UTC](https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887/3 "2026-01-29T17:19:20Z")

</div>

You win! 🥳

---

<div class="post-metadata">

**Author:** ![kirupa](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupa/32/11616_2.png) [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Post date:** [February 2, 2026, 12:28am UTC](https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887/4 "2026-02-02T00:28:54Z")

</div>

And, the article is now live 🙂

> **[Understanding Merkle Trees](https://www.kirupa.com/data_structures_algorithms/understanding_merkle_trees.htm)**
>
> Learn what Merkle trees are, how they work, and why this elegant data structure is critical to Git, blockchains, cloud sync, and secure systems at scale.

---

<div class="post-metadata">

**Author:** ![Wayne](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/wayne/32/16501_2.png) [@Wayne](https://forum.kirupa.com/u/Wayne)\
**Post date:** [February 12, 2026, 7:23pm UTC](https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887/5 "2026-02-12T19:23:43Z")

</div>

I remember reading a good book that had really interesting ways to explain these algorithms concepts as you. I think it was grokking algorithms by manning publications

---

<div class="post-metadata">

**Author:** ![prestige\_123](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@prestige\_123](https://forum.kirupa.com/u/prestige_123)\
**Post date:** [February 14, 2026, 6:34am UTC](https://forum.kirupa.com/t/what-data-structure-am-i-going-to-write-about-next/678887/6 "2026-02-14T06:34:03Z")

</div>

Nice choice! 🎉

Merkle Trees are such a cool topic — especially how they’re used in Git and blockchains for efficient data verification. Looking forward to reading your breakdown, your explanations always make complex concepts much easier to digest.

Also, _Grokking Algorithms_ is a great book recommendation 👍 it explains things in a very visual and intuitive way.