ASAaditya Sarafintarshawkman.hashnode.dev·13h ago · 9 min readDP: A complex term for memoizationDynamic Programming can feel confusing because every problem looks different. But many DP problems follow the same patterns. In this blog, we will look at 5 common forms of DP: Knapsack Form Ending 00
ASAbirami Sriinabi-blog.hashnode.dev·14h ago · 8 min readDay 1 of My 30-Day DSA Journey — Arrays with JavaScript 🚀Today I started my 30 Days of DSA with JavaScript journey. My goal is not just to solve LeetCode problems, but to understand the patterns behind the problems, analyze time and space complexity, and le00
MMMona Moxieinmonamoxie.hashnode.dev·1d ago · 4 min readThe Hidden Cost Of A Line of Code"Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct." My first approach was to use a list class Solution: def con00
SRSailesh Ravichandranindata-engineering-sailesh.hashnode.dev·2d ago · 14 min readAutomated Data Contract Enforcement and CI/CD Quality GatesHow we stopped 30+ pipelines a quarter from breaking, by catching bad schema changes before they ever ship The Problem, in Plain English In one sentence: a team upstream changes something in their da00
DMDipti Moryaniinperceptive.hashnode.dev·5d ago · 10 min readFrom Static Reports to Revenue Intelligence: How Modern Sales Dashboards Drive Smarter DecisionsIntroduction Sales dashboards have changed dramatically over the past two decades. What began as simple reports showing revenue, sales volume, and monthly targets has evolved into sophisticated decisi00
DMDipti Moryaniindiptis-case-studies-and-articles.hashnode.dev·6d ago · 9 min readFrom Training Spreadsheets to Smart Compliance Platforms: Modernizing Employee Training ManagementEmployee training is no longer simply a matter of organizing classroom sessions and maintaining attendance sheets. Organizations today need to know who has completed training, which certifications are00
DKDeendayal Kumawatinddsha441981.hashnode.dev·Aug 21 · 10 min readHow I Built a Cache-Line Aligned Hash Table in Rust That Fits Every Bucket in 64 BytesMost hash tables waste memory. They store data in one place, eviction metadata in another, and chain everything together with pointers. Every lookup chases 2-3 pointers across memory, each one potenti00
AAnnetinhtml-portfolio.hashnode.dev·Aug 4 · 4 min readMastering the Two Pointers Technique in Python (With Easy Examples)When I first started solving coding problems, I noticed that many array and string questions looked different but could actually be solved using the same approach: Two Pointers. Instead of using neste00
TMTom Mathewinridingbluewaves.hashnode.dev·Aug 4 · 32 min readThe VIGIA interview companion: learn CS fundamentals by defending a real systemThe VIGIA interview companion: learn CS fundamentals by defending a real system A long-form preparation guide for Android, backend, systems and general software-engineering interviews. It connects dat10
SRSailesh Ravichandranindata-engineering-sailesh.hashnode.dev·Aug 4 · 11 min readDeduplication and Late-Arriving Data HandlingHow we stopped rewriting the entire lake every night and started scoping dedup work to exactly the partitions that changed Domain: Data Engineering Stack: Azure Databricks, Delta Lake (MERGE + Z-Orde00
