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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
Array of Doubled Pairsmedium-
googleuber
Delete Columns to Make Sorted IImedium-
google
Tallest Billboardhard-
Prison Cells After N Daysmedium-
amazonbloomberg
Check Completeness of a Binary Treemedium-
amazonbytedancefacebook
Regions Cut By Slashesmedium-
uber
Delete Columns to Make Sorted IIIhard-
google
N-Repeated Element in Size 2N Arrayeasy-
akamaiapple
Maximum Width Rampmedium-
ebayfacebookgoogle
Minimum Area Rectangle IImedium-
amazonfacebookgoogle
Least Operators to Express Numberhard-
snapchat
Univalued Binary Treeeasy-
amazonboxgoogle
Vowel Spellcheckermedium-
amazonfacebookthumbtack
Numbers With Same Consecutive Differencesmedium-
flipkart
Binary Tree Camerashard-
ebayfacebookgoogle
Pancake Sortingmedium-
amazonfacebookmicrosoft
Powerful Integersmedium-
Flip Binary Tree To Match Preorder Traversalmedium-
bloomberg
Equal Rational Numbershard-
microsoft
K closest Points to Originmedium-
amazonappleasana
Subarray Sums Divisible by Kmedium
amazonbytedanceexpedia
Odd Even Jumphard-
google
Largest Perimeter Triangleeasy-
c3-iot
Squares of a Sorted arrayeasy-
adobeamazonapple
Longest Turbulent Subarraymedium-
amazonbloomberg
Distribute Coins in Binary Treemedium
amazonfacebookgoogle
Unique Paths in Grid 3 - Count all paths moving in 4 directions with obstacles and custom start and endhard-
amazongooglelimebike
Time Based Key-Value Storemedium-
amazonappleatlassian
Triples with Bitwise AND Equal To Zerohard-
flipkartgoogle
Minimum Cost For Ticketsmedium-
amazonfacebookgoogle
String Without AAA or BBBmedium-
grabzalando
Sum of Even Numbers After Queriesmedium-
indeed
Interval List Intersectionsmedium-
amazonapplebloomberg
Vertical Order Traversal of a Binary Treehard-
adobeamazonbloomberg
Smallest String Starting From Leafmedium-
google
Add to Array-Form of Integereasy-
facebookgoogle
Satisfiability of Equality Equationsmedium-
sumologic
Broken Calculatormedium-
bloombergnutanix
Subarrays with K Different Integershard-
alibabaamazongoldman-sachs
Cousins in Binary Treeeasy-
adobeamazonbloomberg
Minimum Number of K Consecutive Bit Flipshard-
akunaakuna-capitalamazon
Number of Squareful Arrayshard-
apple
Find the Town Judgeeasy-
amazonaristafacebook
Maximum Binary Tree IImedium-
facebook
Available Captures for Rookeasy-
square
Minimum Cost to Merge Stoneshard-
amazongoogle
Grid Illuminationhard-
dropbox
Find Common Characterseasy
adobeamazonapple
Check If Word Is Valid After Substitutionsmedium-
facebooknutanix
Max Consecutive Ones IIImedium-
amazonfacebookmicrosoft
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