snapchat 的题目

• LRU Cache with TTL or Weighted Size
  类型：qbank
• Max Area of Island (LC 695)
  类型：qbank
• Event Count Query over Timestamp Range
  类型：qbank
• Valid Set Cards
  类型：qbank
• Stream Window Max Unique Users
  类型：qbank
• In-Memory Pub/Sub
  类型：qbank
• Word Ladder Reachability
  类型：qbank
• Custom List, Iterator & Map Function
  类型：qbank
• Rate Limiter
  类型：qbank
• Service Dependency Shortest Latency Path
  类型：qbank
• Search Suggestion Service
  类型：qbank
• Course Schedule Cycle Detection
  类型：qbank
• Maximum Island Perimeter
  类型：qbank
• Escape Grid with Fire and Waiting Time
  类型：qbank
• Short Video Recommendation & Ranking
  类型：qbank
• Snap Story or Spotlight Feed Backend
  类型：qbank
• Snap Ads Ranking
  类型：qbank
• Metrics Collection, Alerting & Click Counters
  类型：qbank
• ML Fundamentals, Transformer & Regularization
  类型：qbank
• iOS Scrollable Grid & Swift Concurrency
  类型：qbank
• Build an AI-Assisted Chat Backend
  类型：online_judge
• Return the Sizes of All Islands
  类型：online_judge
• Find Duplicate Files Without a Directory-Walking Utility
  类型：online_judge
• Course Schedule (Cycle Detection in Directed Graph)
  类型：online_judge
• K Closest Points to Origin (N log K)
  类型：online_judge
• Maximum Island Perimeter (Max over components)
  类型：online_judge
• Count Increment Calls After a Timestamp
  类型：online_judge
• Merge N sorted lists into one sorted list
  类型：online_judge
• Can a target string be formed using double-sided letter cards (each card used at most once)?
  类型：online_judge
• Count events in a time window with unsorted duplicate timestamps
  类型：online_judge
• Design a Key-Value Database Supporting Column Queries
  类型：online_judge
• Design a Stream Top-K Class (Online Top-K Elements/Frequencies)
  类型：online_judge
• Determine Whether Three Cards Form a Valid Set (SET Game Variant)
  类型：online_judge
• Max Unique Users in Any Time Window
  类型：online_judge
• Most Reliable Path in a Probabilistic Graph
  类型：online_judge
• Prefix Key-Value Sum Query (MapSum)
  类型：online_judge
• Design a data structure (with TTL extension)
  类型：online_judge
• Maximum Number of Vowels in a Substring of Given Length
  类型：online_judge
• Word Ladder Reachability (Boolean)
  类型：online_judge
• Search from the end in a sorted array (variant)
  类型：online_judge
• Grid/Graph BFS Problem from 1point3acres Link (expects possible O(1) query with preprocessing)
  类型：online_judge
• IP Address Transformation / Increment-with-carry Variant ("One Step Dance" variant)
  类型：online_judge
• BFS Shortest Distance on a 2D Grid
  类型：online_judge
• Rate Limiter (Sliding Window)
  类型：online_judge
• Grid Evacuation Reachability / Minimum Escape Time (Multi-source BFS)
  类型：online_judge
• O(1) Get and Add Data Structure
  类型：online_judge
• Binary Search with Boundary Conditions
  类型：online_judge
• 4Sum (Find all unique quadruplets)
  类型：online_judge
• Order of Execution in Swift with DispatchQueue
  类型：online_judge
• DispatchQueue Code Analysis in Swift
  类型：online_judge
• Develop a Scrollable Square Grid in Xcode
  类型：online_judge
• Maximum Difference in Connected Graphs
  类型：online_judge
• Combinations of Elements Using Recursive Mapping
  类型：online_judge
• Maximum Perimeter of Island
  类型：online_judge
• Tree Game
  类型：online_judge
• Find the Spy
  类型：online_judge
• 伞貮
  类型：online_judge
• React Data Fetch and Graph Display
  类型：online_judge
• Dijkstra-based Problem
  类型：online_judge
• Probability Sampling
  类型：online_judge
• Combinations of Prime Numbers
  类型：online_judge
• LeetCode 626
  类型：online_judge
• Cluster Score Difference
  类型：online_judge
• Word Ladder
  类型：online_judge
• Schedule Interview Matches
  类型：online_judge
• Subset Product from Primes
  类型：online_judge
• Design an Online Counter
  类型：online_judge
• Parsing CSV Single Line
  类型：online_judge
• Union of Groups for Pairings
  类型：online_judge
• LRU Conflict Resolution
  类型：online_judge
• 药物安排问题
  类型：online_judge
• Check if List is a Permutation
  类型：online_judge
• Interval List Merging
  类型：online_judge
• Calculate Building's External Wall Perimeter
  类型：online_judge
• Sort Chat Messages
  类型：online_judge
• Fetch Latest Group Chat Messages
  类型：online_judge
• Simplified Median Finder
  类型：online_judge
• Number of Islands
  类型：online_judge
• Count Events Before Timestamp
  类型：online_judge
• Shortest Subarray Length with Array's Degree
  类型：online_judge
• Minimum Meeting Rooms Required for Concurrent Meetings
  类型：online_judge
• Ad Click Tracking and Real-Time Trending Ads System
  类型：online_judge
• Efficient Autocomplete System with Top-K Frequency Suggestions
  类型：online_judge
• Create and Query Snapchat Users Table by Age and Name
  类型：online_judge
• In-Place Array Reversal Without Extra Memory
  类型：online_judge
• Find Grid Coordinate Minimizing Weighted Manhattan Distance Sum
  类型：online_judge
• Count Non-Friend Pairs Using Union-Find Algorithm
  类型：online_judge
• Top K Frequent Elements in Integer Array Efficiently
  类型：online_judge
• First Discovery and Resolution of Critical Project Bug
  类型：online_judge
• Replace All Pattern Occurrences with a Single Character
  类型：online_judge
• Time-Windowed Metric Aggregator with Average Query
  类型：online_judge
• Word Break II: All Possible Sentence Combinations From Dictionary
  类型：online_judge
• Minimum Path Sum in a Grid Moving Only Right and Down
  类型：online_judge
• Design Scalable People You May Know Recommendation System
  类型：online_judge