bloomberg 的题目

• Merge Intervals (LC 56)
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• Duplicate Records Within a Time Window
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• Design Underground System
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• Longest Palindromic Substring
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• Validate Binary Search Tree
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• Active Users Sliding Window
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• Find Tree Root from Edge List
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• Round-Robin Tournament Schedule
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• Gas Tank Grid Reachability
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• Candy Crush 1D
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• Equal Character Frequency (Remove-One Variant)
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• Meeting Rooms II
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• Decode String
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• String to Integer (atoi)
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• Binary Tree Vertical Order Traversal
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• Todo List OOP Design
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• Wordle Character Compare
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• Trapping Rain Water
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• Simplified Grep
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• Friends Of Appropriate Ages
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• Shortest Path in Grid with K Wall Breaks
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• LRU Cache
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• Minimum Cost Flight Split
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• Subway / Network Connectivity
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• Top-K Frequent Tickers (Stock Leaderboard)
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• Lottery System / Insert Delete GetRandom O(1)
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• Flatten a Multilevel Doubly Linked List
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• Word Search in 2D Grid
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• VWAP Analytic Provider
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• Holiday Service Latency Optimization
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• Real-time Market Data System
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• Streaming Social-Media Mentions & Aggregation
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• Trade Processor with Subscribe / Unsubscribe
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• Behavioral Question Pool
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• Stock Price Tracker (Online Stock Span)
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• Shortest Path in a Grid with Obstacles Elimination
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• Fair Electoral Vote Apportionment
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• Refactor an LRU Cache into a Pluggable Eviction-Policy Cache
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• Alien Dictionary / Recover Character Order from Sorted Words
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• Detect Duplicate Items Within a 60-Second Sliding Window
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• Minimum Cost to Send People to Two Cities (Generalized to K)
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• Design an OOP LRU Cache
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• Shortest Path on a Grid with Gas Stations (State Reset)
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• Add Two Numbers (Forward Order Linked Lists)
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• Van Eck-like Sequence: N-th Term
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• Flatten a Multilevel Linked List (Pointer Reconnection)
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• Check Connectivity Between Two Subway Stations
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• Two-City Onsite Flight Cost Minimization
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• Enumerate Round-Robin Match Schedules (Generate All Possible Pairings by Round)
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• Remove Invalid Parentheses (Minimum Removal, Return All Valid Strings)
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• Bucket Values Into Boundary Ranges
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• Find the Root Cause Node from Parent-to-Children Logs
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• Design a data structure supporting insert, delete, and query Top-K frequent elements
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• Candy Crush in 1D (Stabilize by Repeatedly Removing Groups)
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• Insert Delete GetRandom O(1)
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• Design an Ordered Stream
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• Flatten a Multilevel Doubly Linked List
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• Train a Next-Word Predictor from Tokenized Sentences
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• Decode an Encoded String with Nested Patterns
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• Design a Lottery System with O(1) Delete
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• Flatten a Linked List with Down Pointers
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• Length of the Longest Substring Without Repeating Characters
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• Binary Tree Vertical Order Traversal
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• Word Search in a 2D board
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• Implement atoi (string to integer conversion)
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• Grid Path Reachability with Refueling (Fuel-Constrained BFS)
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• Validate Stack Sequences
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• Gas Station Feasibility / Complete Circuit
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• Meeting Rooms II
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• Optimizing Hard Problem Solution
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• Valid Parentheses
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• Evaluate Reverse Polish Notation Variation
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• Complex Algorithmic Challenge
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• Total Friend Requests Based on Age
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• Simplified Grep Implementation
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• Event Registration System
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• Wildcard String Expansion
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• Reordered Transaction List
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• Find occurrence and constraint
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• Best Time to Buy and Sell Stock IV
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• Subsets
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• Valid Parentheses
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• Find the k-th Unique Character
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• Anagram Question
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• Design a 52-card deck class for Blackjack
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• Remove Consecutive Letters in a String
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• Find the Last Person in a Circular Elimination Game
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• LRU Cache with BFS Enhancement
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• Remove Linked List Elements
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• Variants of a LeetCode Problem
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• Medium-Level Sorting Algorithm
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• Sort Words by Custom Alphabet Order
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• Find the Path with the Minimum Sum in an N-ary Tree
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• Max Consecutive Ones II
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• Partition Equal Subset Sum
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• Check if String Frequency Can Be Made Equal
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• Trie Data Structure
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• Design a Simple Game using OOD
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• Nested Parentheses
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• Print URLs using Data Structures
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• Valid Parentheses
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• Best Time to Buy and Sell Stock
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• Two Sum Problem
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• Matchsticks to Square Transform
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• Decode String
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• Word Search
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• Check If Meetings Can Be Scheduled Without Overlaps
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• Streaming Palindrome Checker with Sublinear Time Complexity
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• Count Number of Islands in 2D Grid Map
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• Vertical Order Traversal of Binary Tree Nodes
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• Spelling Bee Valid Words Finder
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• Median of Two Sorted Arrays in O(log(m+n)) Time
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• Find All Paths from Source to Target in DAG
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