All Problems

77 problems total

Array (1905)Sorting (440)Depth First Search (316)Database (301)Breadth First Search (241)Tree (240)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)
All Topics(4301)Algorithms(3944)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)

Filter by Difficulty:

EasyMediumHard

Tag:

Company:

Active filters:Difficulty: hard×Company: uber×
TitleDifficultyVideosCompanies
Median of Two Sorted Arrayshard-
adobeairbnbalibaba
Regular Expression Matchinghard-
adobeairbnbalibaba
Length of the longest path in a weighted treehard-
uber
Median of K sorted arrayhard-
uber
Merge K Sorted Listshard
adobeairbnbalibaba
Object-Oriented Design for Task/Job Schedulerhard-
uber
OOD - Elevator Systemhard-
uber
Stone Pyramid Constructionhard-
uber
Longest Valid Parentheseshard-
adobeamazonapple
Sudoku Solverhard-
adobeamazonapple
First Missing Positivehard-
adobeamazonapple
Trapping Rain Waterhard-
adobeaffirmairbnb
N-Queenshard-
adobeamazonapple
Text Justificationhard-
airbnbamazonapple
Minimum Window Substringhard
adobeairbnbamazon
Maximal Rectanglehard-
adobeamazonbloomberg
Binary Tree Path Sum - Maximum between any two nodeshard
adobeamazonappdynamics
Word Ladder 2 - Get all the laddershard-
amazonapplebloomberg
Word Ladder 1 - Get Ladder Lengthhard-
affirmamazonapple
Candy distributionhard-
amazonapplegoogle
Word Break 2 - Construct a sentencehard
amazonappleaudible
Maximum Points on a Linehard-
amazonapplebloomberg
Find Minimum in Rotated Sorted Array 2 - Duplicates allowedhard-
adobeamazonfacebook
Read N Characters Given Read4 2 - Call Multiple Timeshard-
amazonbloombergfacebook
Word Search 2 - Return All Wordshard
airbnbamazonapple
Skyline Problemhard-
adobeamazonapple
Basic Calculator 1hard-
adobeamazonbloomberg
Sliding Window Maximumhard-
adobealibabaamazon
Trips and Usershard-
amazonuber
Alien Dictionaryhard-
airbnbamazonapple
Integer to English Wordshard
amazonapplebarclays
Expression Add Operatorshard-
applebytedancefacebook
Find Median from Data Streamhard
adobeamazonapple
Serialize and Deserialize Binary Treehard
amazonapplebloomberg
Remove Invalid Parentheses Problemhard-
amazonapplebloomberg
Number of Islands IIhard-
amazonfacebookgoogle
Count of Smaller Numbers After Selfhard-
adobeamazonapple
Shortest Distance from All Buildingshard-
amazonbytedancefacebook
Longest Increasing Path in a Matrixhard-
adobeamazonapple
Reconstruct Itineraryhard-
amazonapplebloomberg
Palindrome Pairshard-
airbnbamazonapple
Insert Delete Search and GetRandom in Constant Time 2 - Duplicates allowedhard-
affirmamazonapple
Perfect Rectanglehard-
applegoogleuber
Strong Password Checkerhard-
adobeamazongoogle
Serialize and Deserialize N-Ary Treehard-
amazonappleebay
All O`one Data Structurehard
amazonbloombergfacebook
LFU Cachehard-
adobealibabaamazon
Optimal Account Balancinghard-
amazonbytedancegoogle
Reverse Pairshard-
amazonbytedancegoogle
Word Abbreviationhard-
googlegrabsnapchat
Showing 1 to 50 of 77 results
12Next