microsoft 的题目

• DNA Shotgun Sequencing
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• In-Memory SQL Engine
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• LRU Cache (LC 146) + Multithreading Variant
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• Contiguous Memory Allocator
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• Tiny Next-Token Prediction Model (PyTorch Fill-In)
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• SFT Sample Packing
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• Sliding-Window Stream Session Bucketing
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• In-Place Sub-Matrix Move
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• KV Store with Snapshot Versions
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• Beam Search Decoder Implementation
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• Gen / Score Task Lock Scheduler
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• Parse Email Addresses from a Log String
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• Multiply Strings (LC 43)
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• Idempotency API with Idempotency-Key Header
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• 15-Puzzle Minimum Moves (BFS)
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• Distance from Each Node to the Cycle in an Undirected Graph
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• Sort 0..32000 with Bit-Vector Storage
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• Validate Lat/Long With Minimum Expensive API Calls
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• Minimum Fuel Cost Across a Road Network
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• Top-K Largest Elements (Retain / Rank Stores)
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• Org Chart Report Count (Tree Aggregation)
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• Balanced Permutation Prefix Check
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• Count Positive Pairs Satisfying 1/x + 1/y = 1/N
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• Resumable Batch Dataloader with Weighted Sampling
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• Streaming Stop-Token Detection
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• Hand-Written K-Means
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• Palindrome Number + Next-Greater Palindrome
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• Rate Limiter (Design + Implementation)
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• Todo List Full-Stack System Design
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• Chatbot Personalization / Memory System Design
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• Distributed Web Crawler System Design
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• Search Autocomplete / Typeahead System Design
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• Job Scheduler / ETL Pipeline System Design
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• URL Shortener / Tiny URL System Design
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• Ticket Booking / Ticketmaster System Design
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• Behavioral Round (Growth Mindset / Customer Obsession)
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• Project Deep Dive
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• Object-Oriented Design Round
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• Transformer Roofline + FP32→FP16 Drill
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• Generate Lexicographically Sorted String Subsets
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• 0/1 Knapsack
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• Return the Top K Largest Numbers
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• Maximum XOR Product
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• Largest Time for Given Digits
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• Minimum Cost Travel with City-Specific Fuel Prices
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• Maximum Strength of Each Neuron in a Tree Network
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• Maximum XOR Product
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• Possible Bipartition Variation
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• Serialize and Deserialize Binary Tree
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• Number of Islands
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• Shortest Path in a Grid with at Most K Cells per Move
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• Design and Implement a URL Shortener
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• Implement K-Means Clustering
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• In-Memory SQL with CSV Initialization
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• Order Records by Matching Start/End and Concatenate Payloads
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• Implement K-Means Clustering
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• Implement a Tiny Feed-Forward Next-Token Predictor in PyTorch (Fill TODOs)
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• Output all overlapping intervals
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• Rotate String (variant with two string arrays)
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• Heap-based problem (unknown exact prompt)
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• LFU Cache (wrapped variant)
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• Implement Greedy Decoding (k=1) and Beam Search (k>1) with Length Normalization
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• Remove All Comments from Source String (C++)
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• Streaming Events Fixed-Interval Window Min/Max Summary
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• Convert a Multi-Children Tree Structure to a Binary Search Tree and Design Tests
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• Matrix Multiplication
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• Implement LFU Cache
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• Implement a SQL-like WHERE filter for in-memory rows
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• Shortest Tour Returning to Start in a Weighted Graph (TSP Variant)
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• Minimum Operations to Transform an Integer Using ±2^i Steps
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• Top K Largest Elements in an Array
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• Max Investors Met Within K Days Given Availability Lists
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• Split String by Spaces Unless '*' Appears
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• Schedule a New Calendar Event Without Overlap
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• Top K Relevant Apps by Keyword Scores
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• Design and Implement Search Auto-Complete (Simplified)
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• Find Vertex of a Quadratic Function Within a Range
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• Merge Two Sorted Arrays and Deduplicate
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• Balanced Prefix-Permutation Subarray for Every k
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• CUDA Vibe Coding: Implement or Optimize a CUDA Kernel
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• LLM Training Dataset Quality Check for Excel Copilot Tasks
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• Maximum Purchases From Sorted Prices Starting at Position (Multiple Queries)
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• Shortest Subarray (Substring) Length With At Least K Distinct Characters
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• Final Prices with Next Less-or-Equal Discount + Indices Sold at Full Price
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• Balanced Prefix Permutation in a Permutation
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• Minimum Absolute Difference Pairs
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• Streaming Stop Token: Return Prefix Before First Occurrence (Stop Token May Split Across Chunks)
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• Implement K-Means Clustering From Scratch
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• Best Time to Buy and Sell Stock (single transaction) (write full main, include follow-ups)
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• Longest Substring Without Repeating Characters (write full main, include follow-ups)
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• Kth Smallest Element in a Binary Search Tree (write full main, with follow-ups)
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• Meeting Rooms (Medium): Minimum number of rooms
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• ML Coding: Implement a basic ML-related routine
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• Hash Map (Hard): Count point pairs satisfying a condition
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• Object-Oriented Design (Medium) + follow-up coding
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• Hash Map Counting / Lookup Problem
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• Sliding Window String/Array Problem (NeetCode 150 style)
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• Max Points on a Line
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• Detect stop-token during streaming inference
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• Implement a resumable data loader
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• Longest Substring Without Repeating Characters
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• Path With Maximum Minimum Value
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• Implement an LRU Cache
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• Graph shortest path returning to origin
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• Rainwater trapping problem variant
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• Palindrome Check and Find Next Palindrome
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• Find Shortest Path in Cyclic Graph
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• Check if a number is a palindrome and find the next palindrome
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• Design RESTful API for JSON Files
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• Rate Limiter and Scaling
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• Resource Change Database Design
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• Coding and Follow-ups
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• Hard LeetCode Problem Recommendation
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• Best Time to Buy and Sell Stock and Binary Tree Right Side View
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• Count Arrays with Same Digit Sum
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• Streaming Sequence with Delimiter
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• Validate JSON String
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• Random Process Walkthrough
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• Processing Service Logs for Error Detection and Reporting
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• Longest Palindromic Subsequence
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• Invert Binary Tree
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• Binary Search Tree Iterator
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• Binary Tree Zigzag Level Order Traversal
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• My Calendar I
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• Longest Substring Without Repeating Characters
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• Woo Restaurant Design
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• Design a LRU Cache
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• Count Pairs (x, y) that Satisfy the Equation for 1/x + 1/y = 1/N
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• Find the Maximum Length of Subarray with Sum Less Than Target
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• Reverse Nodes in k-Group and Basic Mutex Programming
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• DNA Sequence Concatenation
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• Right Side View of Binary Tree
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• Identify and Preserve Unique Blocks from File
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• Get Most Active Users Within Time Range
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• Number of Islands
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• Reverse Words in a String with Original Position Maintenance
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• Number of Islands
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• Simple Data Processing Task
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• Python Recursion Problem
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• Optimize React Code
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• Add Strings as Numbers
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• Simplify Path Similar Problem
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• Jump Game Similar Problem
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• Find Two Smallest Elements in an Array
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• Longest Semi-Altered Substring
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• Optimize Maximum Distance
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• Recipe Making
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• Replace Digit
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• Count Swaps
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• Count letters
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• Design Custom Stack Class
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• Design Progress Bar
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• Count Unique Decimal Numbers from Binary String
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• Low Level Logger Design
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• Best Time to Buy and Sell Stock
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• Employee Management Structure in Tree
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• Merge Intervals
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• Minimum Swap To Correct String
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• Implement Singleton Pattern
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• Linked List Partition
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• Insert into a Circular Linked List
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• Python Data Processing Question
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• Daily Temperatures
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• Steps to Reduce Binary String to Zero
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• Unique Length-Three Substrings
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• Maximum Sum of Edge Values in an Undirected Graph
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• Robot Vacuum Cleaner Movement
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• Binary Search Variation
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• LRU Cache
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• Top K Frequent Elements
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• Word Prefix Suggestion using Trie
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• Reverse a Linked List
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• Delivery Completion Time Calculation
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• Optimize Path by Canceling Opposite Directions
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• Enhancing Research Skills and Team Collaboration in Publishing
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• Detect Kinship via Common Ancestor in Family Database
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• Distributed Sum Computation with Minimal Communication Cost
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• Meeting Room Booking System with Hourly Slots
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• Remove Duplicate Letters Preserving First Occurrence Order
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• Max Frequency Character in Stream with getNext and getMax APIs
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