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Autocomplete Suggestion Systemmedium-
twitter
Integer To Romanmedium-
adobeamazonapple
Valid Sudokumedium-
adobeamazonapple
Multiply Stringsmedium-
amazonappleexpedia
Merge Overlapping Intervalsmedium
adobealibabaamazon
Insert Intervalmedium
adobeamazonapple
Decode Waysmedium
adobeamazonapple
Construct Binary Tree from Inorder and Preorder Traversalmedium
adobeamazonapple
Construct Binary Tree from Inorder and Postorder Traversalmedium-
amazonbloombergfacebook
Clone Undirected Graphmedium
amazonapplefacebook
Word Break 1 - Check if word is breakablemedium
adobeamazonapple
Design LRU Cachemedium-
adobealibabaamazon
Friend Words - One Edit Distancemedium-
amazonfacebookgoogle
Largest Number From Given Numbersmedium
amazonapplebytedance
Number of Islandsmedium
adobeaffirmalibaba
Implement Triemedium
amazonapplebloomberg
Course Schedule 2 - Get Ordered Coursesmedium-
airbnbamazonapple
Lowest Common Ancestor of a Binary Search Treemedium
adobeamazonbloomberg
Strobogrammatic Number 2 - Generate for length nmedium-
ciscofacebookgoogle
Flatten 2D Vectormedium-
airbnbapplefacebook
Paint House 1 - N houses with 3 colors with no two adjacent houses with same color colormedium-
applelinkedinmicrosoft
Encode and Decode Stringsmedium
bloomberggooglemicrosoft
Range Sum Query – Mutablemedium-
amazonfacebookgoogle
Number of Connected Components in an Undirected Graphmedium-
amazonfacebookgoogle
Flatten Nested List Iteratormedium-
airbnbamazonapple
Design Twitter (Data Structure Design)medium-
amazondoordashoracle
Kth Smallest Element in a Sorted Matrixmedium-
adobeamazonapple
Insert Delete Search and GetRandom in Constant Time 1 - Dupes not allowedmedium-
adobeaffirmamazon
Minimum Genetic Mutationmedium-
amazongoogletwitter
Sort Characters By Frequencymedium-
amazonbloombergexpedia
Validate IP Addressmedium-
amazonciscofacebook
The Maze 1 - Can the Ball Stop at Destinationmedium-
amazonapplefacebook
Random Pick with Weightmedium-
amazonappleatlassian
K-diff Pairs in an Arraymedium-
amazonbloomberggoldman-sachs
Single Element in a Sorted Arraymedium-
amazonappleatlassian
Number of Provincesmedium-
adobeamazonatlassian
Count Student Number in Departmentsmedium-
twitter
Investments in 2016medium-
twitter
Tree Node Leetcode Database Problemmedium-
twitter
Design Log Storage Systemmedium-
amazongooglesnapchat
Palindromic Substringsmedium
adobeamazonapple
Network Delay Timemedium-
akuna-capitalamazongoogle
Reorganize Stringmedium-
amazonappleebay
Binary Tree Pruningmedium-
amazonbuffer-boxcapital-one
Masking Personal Informationmedium-
twitter
Minimum Increment to Make Array Uniquemedium
courseraixltwitter
Time Based Key-Value Storemedium-
amazonappleatlassian
Robot Bounded In Circlemedium-
airbnbgoldman-sachspaypal
Minimum Number of Steps to Make Two Strings Anagrammedium-
bloombergtwitter
Tweet Counts Per Frequencymedium-
twitter
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