ullas kunder blog

Blogs
Contact
Projects
Visitor

All js dom react hooks guide markdown basic p5 dsa git github c++lib array regx advance stack ts nextjs mdx rss dev.to blog next-api ssr seo cms algorithms arrays prefixsum python javascript subarray brute-force interview hashmap optimal coding nodejs automation blogging productivity JavaScript debounce throttle event handling performance optimization search input scroll events requestAnimationFrame modern JavaScript Javascript event-loop task-queue microtasks macrotasks async call-stack execution-context web-development beginner-guide twopointer string slidingwindow PostgreSQL PostgreSQL Password Reset PostgreSQL Windows Reset Database Password Postgres Security Database Administration psql Tutorial PowerShell PostgreSQL PostgreSQL 17 slicing lists strings go wails system-tray desktop-app background-task goroutines trees graph-theory bfs dfs graphs search bst binary-search leetcode recursion intervals sliding-window linked-list heap divide-and-conquer graph flutter firebase mobileapp ai system-design rapid-prototyping dynamic-programming

Two Sum – Brute Force vs Hashing
Solve the classic Two Sum problem using brute-force and optimized hashing techniques, a must-know algorithm for coding interviews.
Sep 23, 2025
Longest Substring Without Repeating Characters – Sliding Window
Learn how to efficiently find the longest substring with unique characters using sliding window and hashmap in Python and JavaScript.
Sep 23, 2025
Find Pair with Given Sum in an Array – Brute-force and Optimal Approaches
Explore how to find two elements in an array that sum up to a target value using brute-force and hash map techniques in both Python and JavaScript.
Jun 26, 2025
Print All Zero-Sum Subarrays – From Brute-Force to Prefix Hashing
Explore how to find and print all subarrays that sum to zero using both brute-force and efficient prefix-sum + hashmap techniques in Python.
Jun 26, 2025