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2066 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)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)Algorithms(3944)

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Title	Difficulty	Videos	Companies
2Sum - 0 - closest - Find two elements whose sum is closest to zero	medium	-
Amount of New Area Painted Each Day	hard	-
Apply Substitutions	medium	-
Array With Elements Not Equal to Average of Neighbors	medium	-
Assign Elements to Groups with Constraints	medium	-
Best Position for a Service Centre	hard	-	reddit
Binary Search Without Multiplication, Division and Bit-shift Operations	hard	-	netflix
Brace Expansion	medium	-
Button with Longest Push Time	easy	-
Calculate Score After Performing Instructions	medium	-
Calculating the mean and median of an unsorted array	easy	-	uber
Can Make Palindrome from Substring	medium	-
Car Pooling	medium	-
Check if Array Contains All Elements Of Some Given Range	easy	-
Check if Array is Consecutive Integers	medium	-
Check if Array is Consecutive Positive Integers	easy	-
Check if given string is palindrome or not	easy
Choose K Elements With Maximum Sum	medium	-
Closest Equal Element Queries	medium	-
Concatenated Divisibility	hard	-
Construct reverse sum hierarchy triangle from an array	medium	-
Count Beautiful Splits in an Array	medium	-
Count Cells in Overlapping Horizontal and Vertical Substrings	medium	-
Count Connected Components in LCM Graph	hard	-
Count Covered Buildings	medium	-
Count frequency of target element in sorted array	medium	-
Count Inversions - Count Smaller on Right	medium	-	google
Count Mentions Per User	medium	-
Count Non-Decreasing Subarrays After K Operations	hard	-
Count Partitions with Even Sum Difference	easy	-
Count Special Subsequences	medium	-
Count the number of elements from one array less than or equal to elements in another array	medium	-	amazon
Create Sorted Array through Instructions	hard	-
Delivering Boxes from Storage to Ports	hard	-
Design Spreadsheet	medium	-
Dot Product of 2 Sparse Vectors	medium	-
Double Stacks	easy	-
Eat Pizzas!	medium	-
Equal Sum Grid Partition I	medium	-
Equal Sum Grid Partition II	hard	-
Fill a Special Grid	medium	-
Find a Value of a Mysterious Function Closest to Target	hard	-
Find All Elements Appearing More Than Size by k Times in Array	medium	-
Find Even Occurring Element	easy	-
Find First Index Where Zeros Begin in Binary Array	easy	-
Find largest three elements in an array	easy	-
Find Leader Elements in an Array	easy	-
Find local minimum or maximum in O(1) time in an array with elements differing by plus minus 1	medium	-
Find longest Snake sequence in a given matrix	medium	-
Find Minimum Cost to Remove Array Elements	medium	-

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