Data Structures and Algorithms (Python)

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Dynamic Programming — The Last Topic. The One That Surprised Me Most.

Mar 19, 20268 min read

Sorting Algorithms — I Didn't Expect This Many Methods. What a Journey.

Mar 15, 202613 min read

44 Days of DSA Theory: What I Actually Learned, What I Didn't, and What Comes Next (Conclusion)

February 4, 2026 → March 19, 2026. 44 days. Roughly 50 hours. Eleven topics. One overdue conclusion. I'm not going to say this sprint changed my life. It was 44 days of sitting at my desk before the

Mar 19, 202615 min read

Tree Traversals — I Expected Graphs, Got Something Way Easier

Mar 10, 20267 min read

Recursion Felt Like a While Loop — Until rBST Delete Hit Me With 4 Cases

Mar 9, 20268 min read

Heaps Felt Like a Messy BST — And That's Exactly Why It Made Sense

When I first heard the word "heap," my brain went straight to the English meaning — an untidy pile of objects collected together. A mound of stuff. Turns out? That's not far off from what a heap actu

Mar 1, 202615 min read

Graphs: I Was Right — It Was Going to Be Hard

Day 20 of my DSA journey. Before starting graphs, I had a feeling. Not excitement. Not curiosity. A quiet dread. This one is going to be hard. I was right. What Is a Graph? A graph is a collection of

Feb 24, 20266 min read

Hash Tables Didn't Click — And I'm Okay With That

Day 16 into my DSA journey, and today was the first day I sat with Hash Tables. I didn't finish it feeling confident. Every topic before this — linked lists, stacks, queues, BST — had one thing in common. Nodes. I could draw them. I could visualize t...

Feb 19, 20267 min read

I Finally Understood BST — And It's Just Divide & Conquer in Disguise

Last article, I said trees made me nervous. Recursion. Nodes. Children. Height. I expected to be stuck for a week like linked lists. I wasn't. Binary Search Tree clicked faster than I expected — and o

Feb 18, 20266 min read

Two Days, Two Data Structures: Stacks, Queues, and Why O(1) vs O(n) Finally Clicked

Two Days, Two Data Structures: Stacks, Queues, and Why O(1) vs O(n) Finally Clicked Last week, I wrote about my biggest struggle with DSA: understanding every solution but unable to solve problems independently. I called it the “recognition vs recal...

Feb 15, 20265 min read

I Understood Every LeetCode Solution But Couldn’t Solve Anything: My DSA Learning Reality

I wake up at 6 AM every day. Not because I’m a morning person, but because I have a goal: crack FAANG interviews. I’m a CS student who started learning Data Structures and Algorithms on February 4th, 2026. I study 4 hours daily before college. I’m d...

Feb 12, 20265 min read

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