All Problems

25 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
Two Sumeasy
adobeaetionaffirm
Add Two Numbers represented as Linked List in Reversed Ordermedium-
adobeaetionairbnb
Longest Substring Without Repeating Charactersmedium
adobealationalibaba
3Sum0 - Find three elements in an array that sum to a zeromedium
adobeakuna-capitalalibaba
Search in Rotated Sorted Arraymedium
adobealibabaamazon
Climbing Stairs - Take atmost 2 Stepseasy
adobealibabaamazon
Edit Distancemedium-
adobeamazonapple
Merge Two Sorted Arrayseasy-
adobeamazonapple
Decode Waysmedium
adobeamazonapple
Path Sum 2 - find all root to leaf pathsmedium-
adobeamazonapple
Binary Tree Path Sum - Maximum between any two nodeshard
adobeamazonappdynamics
Design LRU Cachemedium-
adobealibabaamazon
Kth Largest Element in an Arraymedium-
adobeairbnbalibaba
Search a 2D Matrix 2 - Rows and columns are sortedmedium-
adobeamazonapple
Longest Substring with At Least K Repeating Charactersmedium-
adobeamazonbaidu
Integer Replacementmedium-
amazonbaidubloomberg
Split Array Largest Sumhard-
amazonbaidufacebook
Arithmetic Slicesmedium-
aetionamazonbaidu
Arithmetic Slices II - Subsequencehard-
adobealibababaidu
Zuma Gamehard-
baidubloomberg
Diameter Of a Binary Treeeasy-
adobeamazonapple
Out of Boundary Pathsmedium-
baidu
Design In-Memory File Systemhard-
airbnbamazonbaidu
Minimum Number of Refueling Stopshard-
amazonbaidugoogle
Length of Longest Fibonacci Subsequencemedium
amazonbaidu