Ullas Kunder

Writing / 65 entries

Code, Solutions
& Discovery.

A public digital garden — bugs, breakthroughs, and the chaos of building things on the web.

Topics · 156
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alldsa34python29interview26leetcode22algorithms16guide11
33
Apr 20, 2026#leetcode#python

LeetCode 239: Sliding Window Maximum

Master the Monotonic Deque approach to efficiently track the maximum value in a sliding window.

34
Apr 19, 2026#leetcode#dsa

LeetCode 57: Insert Interval – Efficient Merging

Master the art of merging intervals with a clean, three-phase linear approach.

35
Apr 17, 2026#dsa#trees

Binary Search Tree (BST) Concept and Operations

The data structure that keeps itself sorted — automatically.

36
Apr 17, 2026#leetcode#dsa

LeetCode 94: Binary Tree Inorder Traversal (Recursive vs Iterative)

Solving a classic DFS problem with both elegant recursion and a high-performance explicit stack.

37
Apr 16, 2026#dsa#algorithms

Traversal Algorithms: Navigating Trees and Graphs with BFS and DFS

Mastering Breadth-First and Depth-First Search.

38
Apr 15, 2026#dsa#trees

What is a Tree in DSA?

Understanding the "Why" behind the most fundamental data structure.

39
Apr 13, 2026#go#wails

Adding a sneaky system tray to Wails v2 without locking your threads

Keep your background apps running smoothly by combining Wails and Systray without blocking the main OS thread

40
Apr 10, 2026#python#slicing

Python Slicing 101 Essential Techniques

From Basic Indexing to Advanced Patterns—Master the Most Elegant Feature of Python

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