| Balance Parentheses with Minimum Insertions and Deletions | Hard | facebook | |
| Check if a graph is minimally-connected | Medium | facebook | |
| Validate Mastermind Game Guesses | Medium | facebook | |
| Word Subsets | Medium | amazon
facebook
google | |
| Design a Sparse Array | Easy | facebook | |
| Find Largest Value in Each Tree Row | Medium | amazon
apple
facebook
linkedin
microsoft | |
| Alien Dictionary | Hard | airbnb
amazon
apple
bloomberg
cohesity
doordash
facebook
flipkart
google
microsoft
pinterest
pocket-gems
snapchat
square
twitter
uber
vmware | |
| Construct Binary Search Tree BST from Preorder Traversal | Medium | amazon
facebook
microsoft
oracle | |
| Delete in a Binary Search Tree | Medium | amazon
apple
bloomberg
cisco
facebook
google
linkedin
microsoft
oracle
uber
yahoo | |
| Find a Corresponding Node of a Binary Tree in a Clone of That Tree | Easy | facebook | |
| Find K Closest Elements | Medium | amazon
apple
bloomberg
ebay
facebook
google
microsoft
snapchat
uber | |
| Insert into a Binary Search Tree | Medium | amazon
atlassian
facebook
google
microsoft | |
| K closest Points to Origin | Medium | amazon
apple
asana
ebay
expedia
facebook
goldman-sachs
google
linkedin
microsoft
oracle
paypal
uber
visa
yahoo | |
| Maximum Binary Tree | Medium | amazon
facebook
google
microsoft | |
| Non-overlapping Intervals | Medium | amazon
apple
bloomberg
facebook
google
microsoft
stripe | |
| Number of Connected Components in an Undirected Graph | Medium | amazon
facebook
google
linkedin
microsoft
twitter | |
| Pacific Atlantic Water Flow | Medium | amazon
apple
bloomberg
facebook
google
microsoft
oracle | |
| Palindromic Substrings | Medium | adobe
amazon
apple
atlassian
citadel
coursera
facebook
goldman-sachs
google
linkedin
mathworks
microsoft
pure-storage
roblox
twitter
uber
vmware | |
| Range Sum Query - Immutable | Easy | amazon
bloomberg
facebook
goldman-sachs
google
microsoft
palantir-technologies | |
| Sum of Two Integers | Medium | amazon
apple
facebook
google
hulu | |
| Task Scheduler | Medium | amazon
apple
bloomberg
facebook
google
microsoft
nutanix
oracle
pinterest
uber
vmware | |
| Top K Frequent Elements | Medium | amazon
apple
bloomberg
bytedance
ebay
facebook
goldman-sachs
google
hulu
linkedin
microsoft
oracle
pocket-gems
snapchat
spotify
uber
vmware
yahoo
yelp | |
| Add Bold Tag in String | Medium | facebook
google
wish
gusto | |
| Apples & Oranges | Medium | facebook | |
| Apply Discount Every n Orders | Medium | facebook | |
| Check If Word Is Valid After Substitutions | Medium | facebook
nutanix | |
| Closest Leaf in a Binary Tree | Medium | amazon
databricks
facebook
google | |
| Customers Who Bought Products A and B but Not C | Medium | facebook | |
| Debounce | Medium | facebook | |
| Equal Tree Partition | Medium | amazon
facebook | |
| Exam Room | Medium | amazon
facebook
google
quip
quora
uber | |
| Find N Unique Integers Sum up to Zero | Easy | amazon
facebook
microsoft | |
| Find the Kth Smallest Sum of a Matrix With Sorted Rows | Hard | facebook | |
| Goat Latin | Easy | facebook
square | |
| Implement Magic Dictionary | Medium | facebook
google
microsoft | |
| Insert into a Sorted Circular Linked List | Medium | amazon
bloomberg
facebook
google
microsoft
quip | |
| Jewels and Stones | Easy | adobe
amazon
apple
facebook
google
yahoo | |
| Longest Repeating Substring | Medium | amazon
facebook
google
microsoft | |
| Max Consecutive Ones III | Medium | amazon
facebook
microsoft
yandex | |
| Maximum Binary Tree II | Medium | facebook | |
| Maximum Number of Darts Inside of a Circular Dartboard | Hard | facebook | |
| Maximum Vacation Days | Hard | facebook
google
microsoft
uber | |
| Minimum Area Rectangle II | Medium | amazon
facebook
google | |
| Minimum Knight Moves | Medium | amazon
apple
facebook
google
indeed
microsoft
oracle | |
| Minimum Number of K Consecutive Bit Flips | Hard | akuna
akuna-capital
amazon
facebook | |
| Monotonic Array | Easy | facebook | |
| Moving Stones Until Consecutive | Medium | facebook | |
| Next Closest Time | Medium | adobe
amazon
bytedance
facebook
google
microsoft
uber | |
| Next Greater Node In Linked List | Medium | amazon
facebook
microsoft
uber | |
| Number Of Corner Rectangles | Medium | facebook
google | |