| K-th Smallest Prime Fraction | Medium | ponyai | |
| Remove Invalid Parentheses Problem | Hard | amazon
apple
bloomberg
facebook
google
houzz
ponyai
postmates
uber | |
| Maximum Profit in Job Scheduling Problem | Hard | airbnb
bytedance
cisco
google
ponyai | |
| Word Pattern 2 Problem | Medium | dropbox
facebook
pony-ai
ponyai
uber | |