DSA Handwritten notes for Revision Most people start DSA prep by… — All Notes | Study Materials - Course Tonight — TG.ME

DSA Handwritten notes for Revision Most people start DSA prep by solving 500+ random questions. I did too. Until I realized it’s not about quantity, but about patterns and clarity. Here’s what matters most in interviews: - Can you identify the problem type quickly? - Do you explain your approach clearly? - Are you able to optimize on the spot? - Can you stay calm when the variation looks unfamiliar? My DSA strategy: - Focused on 14 key patterns: two pointers, sliding window, recursion, backtracking, BFS/DFS, heaps, tries, etc. - Solved 2–3 curated questions daily instead of grinding blindly - Practiced mock interviews weekly (even with friends) Top Leetcode questions to master: 1. Two Sum 2. Longest Substring Without Repeating Characters 3. Merge Intervals 4. Binary Tree Level Order Traversal 5. Detect Cycle in Graph 6. Word Ladder 7. Kth Largest Element 8. Number of Islands 9. Find Median from Data Stream 10. Serialize and Deserialize Binary Tree @course_tonight