| Smallest positive integer that cannot be represented as the sum of a subset of a sorted array |
Easy
|
amazon
|
|
| Length of Longest Fibonacci Subsequence |
Medium
|
amazon
baidu
|
|
| Construct Binary Tree from Preorder and Postorder Traversal |
Medium
|
amazon
bloomberg
facebook
google
uber
|
|
| Recover a Tree From Preorder Traversal |
Hard
|
amazon
linkedin
|
|
| Making A Large Island |
Hard
|
amazon
facebook
google
uber
|
|
| Count Servers that Communicate |
Medium
|
amazon
google
|
|
| Busiest period in a building |
Easy
|
amazon
|
|
| Word Subsets |
Medium
|
amazon
facebook
google
|
|
| Implement a bit array |
Medium
|
amazon
|
|
| String Matching in an Array |
Easy
|
amazon
|
|
| Break a string into lines of length k without breaking words |
Medium
|
amazon
|
|
| Find Largest Value in Each Tree Row Problem |
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
|
|
| Binary Search Tree BST Operations - Delete |
Medium
|
amazon
apple
bloomberg
cisco
facebook
google
linkedin
microsoft
oracle
uber
yahoo
|
|
| Binary Search Tree BST Operations - Insert |
Medium
|
amazon
atlassian
facebook
google
microsoft
|
|
| Binary Tree Pruning |
Medium
|
amazon
buffer-box
capital-one
google
hulu
twitter
|
|
| Construct Binary Search Tree BST from Preorder Traversal |
Medium
|
amazon
facebook
microsoft
oracle
|
|
| Find GCD of n numbers |
Easy
|
amazon
|
|
| Find Leaves of Binary Tree |
Medium
|
amazon
atlassian
ebay
google
linkedin
pocket-gems
|
|
| K closest Points to Origin |
Medium
|
amazon
apple
asana
ebay
expedia
facebook
goldman-sachs
google
linkedin
microsoft
oracle
paypal
uber
visa
yahoo
|
|
| Largest Divisible Subset |
Medium
|
adobe
amazon
google
|
|
| 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
|
|
| Plus One 2 - Given number as Linked List plus one |
Medium
|
amazon
google
|
|
| Pseudo-Palindromic Paths in a Binary Tree |
Medium
|
amazon
|
|
| 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
|
|
| Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree |
Medium
|
amazon
|
|
| Closest Leaf in a Binary Tree |
Medium
|
amazon
databricks
facebook
google
|
|
| Interval List Intersections |
Medium
|
amazon
apple
bloomberg
cruise-automation
doordash
facebook
google
oracle
pinterest
snapchat
uber
|
|
| Partition Array According to Given Pivot |
Medium
|
amazon
|
|
| Distance between two nodes in binary tree |
Medium
|
amazon
|
|
| Is Graph Bipartite |
Medium
|
amazon
dropbox
ebay
facebook
google
linkedin
liveramp
microsoft
uber
|
|
| Rectangle Overlap |
Easy
|
adobe
amazon
apple
bloomberg
goldman-sachs
google
mathworks
microsoft
oracle
|
|
| Robot Room Cleaner |
Hard
|
amazon
facebook
google
microsoft
|
|
| Binary Tree Path - All root to leaf paths |
Easy
|
adobe
amazon
apple
facebook
google
microsoft
|
|
| Sliding Puzzle Problem |
Hard
|
airbnb
amazon
facebook
google
microsoft
uber
|
|
| Shortest Subarray with Sum at Least K Problem |
Hard
|
amazon
facebook
goldman-sachs
google
|
|
| Remove Sub-Folders from the Filesystem Problem |
Medium
|
amazon
facebook
google
|
|
| Diagonal Traverse Problem |
Medium
|
amazon
apple
ebay
facebook
google
microsoft
quora
splunk
|
|
| Maximum Swap Problem |
Medium
|
amazon
apple
bytedance
facebook
microsoft
uber
|
|
| Smallest Range Covering Elements from K Lists Problem |
Hard
|
amazon
apple
facebook
google
lyft
microsoft
pinterest
snapchat
|
|
| Minimum Add to Make Parentheses Valid Problem |
Medium
|
amazon
facebook
servicenow
|
|
| Sentence Similarity 2 - with transitive word pairs |
Medium
|
amazon
bloomberg
google
|
|
| Uncommon Words from Two Sentences Problem |
Easy
|
amazon
expedia
facebook
microsoft
|
|