A complete Data Structures & Algorithms series written in idiomatic Kotlin. Not Java translated to .kt — real Kotlin the way it’s meant to be written. 🟢 Phase 1 — Arrays LC #...

Problem Info     LeetCode # 1 — Two Sum Difficulty Easy Topic Arrays, HashMap Given an arr...

Problem Info     LeetCode # 217 — Contains Duplicate Difficulty Easy Topic Arrays, HashSet ...

Problem Info     LeetCode # 121 — Best Time to Buy and Sell Stock Difficulty Easy Topic Arrays, Greedy,...

For most of my career, I wrote raw SQL. Not because I was stubborn about it — I just understood it. I knew exactly what was hitting the database. I could read the query, predict the result, and tun...