Company: Dropbox
- Check If It Is a Good Array
- Design a Text Editor
- Design Hit Counter
- Find Duplicate File in System
- Game of Life
- Grid Illumination
- Guess the Word
- Letter Combinations of a Phone Number
- Max Area of Island
- Median of Two Sorted Arrays
- Merge Intervals
- Minimize Malware Spread II
- Minimize Malware Spread
- Number of Islands II
- Number of Valid Words for Each Puzzle
- Seat Reservation Manager
- Simple Bank System
- Top K Frequent Elements
- Two Sum
- Web Crawler Multithreaded
- Web Crawler
- Word Break II
- Word Pattern II
- Word Pattern