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Videos
Companies
3Sum0 - Find three elements in an array that sum to a zero
medium
adobe
akuna-capital
alibaba
+38 more
3Sum - Closest
medium
-
adobe
amazon
apple
+9 more
4Sum
medium
-
adobe
amazon
apple
+6 more
Group Anagrams
medium
adobe
affirm
amazon
+31 more
Merge Overlapping Intervals
medium
adobe
alibaba
amazon
+42 more
Dutch National Flag DNF
medium
amazon
apple
bloomberg
+12 more
Merge Two Sorted Arrays
easy
-
adobe
amazon
apple
+22 more
Majority Element - Boyer–Moore majority vote algorithm
easy
-
adobe
amazon
apple
+8 more
Largest Number From Given Numbers
medium
amazon
apple
bytedance
+8 more
Kth Largest Element in an Array
medium
-
adobe
airbnb
alibaba
+24 more
Contains Duplicate 1 - Check if array has duplicates
easy
adobe
airbnb
amazon
+7 more
Contains Duplicate 3 - within k distance and t difference
hard
-
adobe
airbnb
apple
+3 more
Majority Element 2 - With n by 3 definition
medium
-
adobe
amazon
apple
+6 more
Valid Anagram
easy
amazon
apple
bloomberg
+16 more
Maximum Intervals Overlap Count
medium
amazon
apple
atlassian
+23 more
Missing Number
easy
adobe
amazon
apple
+10 more
Find Median from Data Stream
hard
adobe
amazon
apple
+20 more
Top K Frequent Elements
medium
amazon
apple
bloomberg
+16 more
Intersection of Two Arrays 1 - Unique Elements
easy
amazon
apple
bloomberg
+12 more
Intersection of Two Arrays 2 - Duplicates allowed
easy
-
amazon
apple
bloomberg
+10 more
Kth Smallest Element in a Sorted Matrix
medium
-
adobe
amazon
apple
+7 more
Queue Reconstruction by Height
medium
-
amazon
apple
bloomberg
+4 more
Non-overlapping Intervals
medium
amazon
apple
bloomberg
+4 more
Array Partition
easy
-
adobe
amazon
apple
Longest Harmonious Subsequence
easy
-
apple
liveramp
Task Scheduler
medium
-
amazon
apple
bloomberg
+8 more
Maximum Product of Three Numbers
easy
-
amazon
apple
bloomberg
+8 more
Smallest Range Covering Elements from K Lists
hard
-
amazon
apple
facebook
+5 more
Design Search Autocomplete System
hard
-
amazon
apple
bloomberg
+8 more
Find K Closest Elements
medium
-
amazon
apple
bloomberg
+6 more
Top K Frequent Words
medium
-
adobe
amazon
apple
+14 more
Accounts Merge
medium
-
amazon
apple
bloomberg
+6 more
Reorganize String
medium
-
amazon
apple
ebay
+11 more
Sort Array By Parity
easy
-
amazon
apple
cisco
+5 more
Sort an array
medium
amazon
apple
bloomberg
Reorder Data in Log Files
medium
-
amazon
apple
audible
K closest Points to Origin
medium
-
amazon
apple
asana
+12 more
Squares of a Sorted array
easy
-
adobe
amazon
apple
+15 more
Meeting Scheduler
medium
-
amazon
apple
doordash
+5 more