All Problems

15 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)
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TitleDifficultyVideosCompanies
Best Position for a Service Centrehard-
reddit
Freivald’s Algorithm to check if a matrix is product of twomedium-
Generate 0 and 1 with 25% and 75% Probability Using a Fair Coinmedium-
Generate a finite, but an arbitrarily large binary tree in O(1) timemedium-
jane-street
Insert Delete Search and GetRandom in Constant Time 1 - Dupes not allowedmedium-
adobeaffirmamazon
Insert Delete Search and GetRandom in Constant Time 2 - Duplicates allowedhard-
affirmamazonapple
Linked List Random Nodemedium-
amazonfacebookgoogle
Shuffle an Arraymedium-
amazonapplebloomberg
Random Pick Indexmedium-
facebookgoogleuber
Implement Rand10() Using Rand7()medium-
applebloombergbytedance
Generate Random Point in a Circlemedium-
facebookleap-motion
Random Point in Non-overlapping Rectanglesmedium-
google
Random Flip Matrixmedium-
google
Random Pick with Weightmedium-
amazonappleatlassian
Random Pick with Blacklisthard-
amazongoogletwo-sigma