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4301 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)

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TitleDifficultyVideosCompanies
Car Fleetmedium-
google
K-Similar Stringshard-
amazongoogle
Exam Roommedium-
amazonfacebookgoogle
Score of Parenthesesmedium-
adobeamazonbytedance
Minimum Cost to Hire K Workershard
bloomberggoogle
Mirror Reflectionmedium-
Buddy Stringseasy-
google
Lemonade Changeeasy
amazonatlassian
Score After Flipping Matrixmedium
iit-bombay
Shortest Subarray with Sum at Least Khard-
amazonfacebookgoldman-sachs
All Nodes Distance K in Binary Treemedium-
amazonapplebloomberg
Shortest Path to Get All Keyshard-
airbnbamazongoogle
Prime Palindromemedium-
amazon
Transpose of a Matrixeasy-
applemicrosoftservicenow
Binary Gapeasy-
ebaytwitter
Reordered Power of 2medium-
Advantage Shufflemedium-
Minimum Number of Refueling Stopshard-
amazonbaidugoogle
Leaf-Similar Treeseasy-
amazonatlassianfacebook
Length of Longest Fibonacci Subsequencemedium
amazonbaidu
Walking Robot Simulationmedium
jane-street
Koko Eating Bananasmedium-
adobeairbnbamazon
Middle of the linked listeasy
adobeamazonapple
Stone Game 1medium-
adobe
Nth Magical Numberhard-
Profitable Schemeshard-
googlelinkedin
Decoded String at Indexmedium-
national-instruments
Boats to Save Peoplemedium
amazonfactsetgoogle
Reachable Nodes In Subdivided Graphhard-
Projection Area of 3D Shapeseasy-
Uncommon Words from Two Sentenceseasy
amazonexpediafacebook
Spiral Matrix 3 - Traverse from Given Starting Pointmedium
dataminrfacebook
Possible Bipartitionmedium-
applefacebookgoogle
Super Egg Drophard-
facebookgoldman-sachsgoogle
Fair Candy Swapeasy-
fidessa
Construct Binary Tree from Preorder and Postorder Traversalmedium-
amazonbloombergfacebook
Find and Replace Patternmedium-
amazonapplegoogle
Sum of Subsequence Widthshard-
sapient
Surface Area of 3D Shapeseasy-
Groups of Special-Equivalent Stringsmedium-
facebook
All Possible Full Binary Treesmedium-
googleoracle
Maximum Frequency Stackhard-
amazonapplebloomberg
Monotonic Arrayeasy-
facebook
Increasing Order Search Treeeasy-
Bitwise ORs of Subarraysmedium-
Orderly Queuehard-
amazon
RLE Iteratormedium-
amazongooglewish
Online Stock Spanmedium-
amazongooglemicrosoft
Numbers At Most N Given Digit Sethard-
amazon
Valid Permutations for DI Sequencehard-
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