90% log substring problems ko overthink kar dete hain ⚠️

Anthony Thanpoovong on Instagram: "1️⃣ Data Structures & Algorithms • “Given an array/string, solve X efficiently.” Examples: • Two Sum • Longest Substring Without Repeating Characters • Merge Intervals 👉 Tests arrays, hash maps, two pointers, sliding window. 2️⃣ Problem-Solving & Optimization • “How would you optimize this solution?” They often start with a brute-force approach and expect you to: • Improve time complexity • Reduce space usage • Explain trade-offs clearly 3️⃣ Coding on Trees or