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Topics - Coggle Diagram

- - - - Hash Maps (Frequency counting)
      - Prefix Sums (Range queries)
    - - String Manipulation
      - Anagrams & Palindromes
    - - Reversal (Iterative/Recursive)
      - Merge Sorted Lists
      - Cycle Detection (Floyd’s Algorithm)
    - - Valid Parentheses
      - Monotonic Stack (Next Greater Element)
  - - - Traversals (In-order, Pre-order, Post-order)
      - DFS (Depth) vs. BFS (Level Order)
      - Lowest Common Ancestor (LCA)
    - - BFS (Shortest Path in unweighted)
      - DFS (Islands, Connected Components)
      - Topological Sort (Dependency resolution)
    - - Top K Elements (Kth Largest/Smallest)
      - Merge K Sorted Lists
  - - - Autocomplete / Search suggestions (Crucial for System Design)
    - - Climbing Stairs / House Robber
      - Longest Increasing Subsequence (LIS)
    - - Merge Intervals
      - Insert Interval
- - - - Vector Similarity Search
      - Embeddings management
    - - PostgreSQL :red_cross:
    - - Firestore
      - MongoDB :red_cross:
    - - AWS S3 :red_cross:
      - Google Cloud Storage (GCS) :red_cross: