All Problems

32 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:Category: Stack×Company: bloomberg×
TitleDifficultyVideosCompanies
Valid Parentheseseasy
adobeairbnbakuna-capital
Longest Valid Parentheseshard-
adobeamazonapple
Trapping Rain Waterhard-
adobeaffirmairbnb
Simplify Pathmedium-
adobeamazonbloomberg
Largest Rectangle in Histogramhard-
adobeamazonbloomberg
Maximal Rectanglehard-
adobeamazonbloomberg
Binary Tree Inorder Traversaleasy-
alibabaamazonapple
Flatten binary tree to linked list in order of preorder traversalmedium-
adobeamazonapple
Binary Tree Preorder Traversaleasy-
amazonbloombergcisco
Min Stackmedium-
adobeamazonapple
Binary Search Tree BST Inorder Iteratormedium-
alibabaamazonapple
Basic Calculator 1hard-
adobeamazonbloomberg
Implement stack using queueseasy-
amazonbloombergcitadel
Implement Queue using Stackseasy-
amazonapplebloomberg
Palindrome Linked Listeasy-
adobeamazonapple
Flatten Nested List Iteratormedium-
airbnbamazonapple
Decode Stringmedium-
alibabaamazonappdynamics
Remove K Digitsmedium-
adobeamazonbloomberg
Convert Binary Search Tree to Sorted Doubly Linked Listmedium-
amazonbloombergdatabricks
Add Two Numbers represented as Linked List in Forward ordermedium-
amazonapplebloomberg
Zuma Gamehard-
baidubloomberg
Next Greater Element 1easy-
amazonbloombergfacebook
Next Greater Element 2medium-
amazonbloombergfacebook
Shortest Unsorted Continuous Subarraymedium-
amazonbloomberggoogle
Valid Parenthesis Stringmedium-
alibabaamazonbloomberg
Max Stackhard-
amazonbloombergfacebook
Daily Temperaturesmedium-
adobeamazonapple
Maximum Frequency Stackhard-
amazonapplebloomberg
Remove All Adjacent Duplicates In String 1easy-
amazonbloombergfacebook
Remove All Adjacent Duplicates in String 2medium-
bloombergfacebookfactset
Minimum Remove to Make Valid Parenthesesmedium-
amazonbloombergbytedance
Design Browser Historymedium-
bloomberg