March 29, 2026
Optimizing Range Updates from O(n×q) → O(n+q)
Learn how to optimize range updates in arrays using the difference array technique.
Hi, I'm Dulranga
I have been developing web applications for over 4 years, and I am passionate about building performant and scalable applications. I always look for new challenges and opportunities to learn and grow as a developer.
Projects
These are some of my notable projects showcasing my skills and expertise in frontend development.
OBS Power: A Power brokage service for B2B
A high-performance analytics dashboard for photographers to track equipment usage and shoot schedules.
LaundryLand: A Laundry appointment booking system
lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Glify Cleaning Services: A house cleaning service booking system
lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Apex Tech: lorem ipsum dolor sit amet
lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Blog
Insights, guides, and thoughts on modern web development.
March 12, 2026
How to analyze O(n) of recursive functions
Learn how to analyze the time complexity of recursive functions and understand their behavior in terms of Big O notation.
February 1, 2026
Why ORDER BY is Unpredictable in SQL
Discover the reasons behind the unpredictability of ORDER BY in SQL and learn best practices for ensuring consistent query results.
Contact
Let's make it happen together. Reach out to me.
If you have a project, an idea, or just want to say hello, the easiest way to reach me is through mail. I usually reply fastest there.
Reach out directly
Quick links for the usual ways to connect.