Title Difficulty Companies Videos
Maximum Employees to Be Invited to a Meeting Hard
Balance Parentheses with Minimum Insertions and Deletions Hard facebook
Make Lexicographically Smallest Array by Swapping Elements Medium
Count elements in range in sorted matrix Hard google
Longest subarray with distinct elements Easy google
Fix the variable capture in closure Medium google
Check if any pair of rectangles overlap Easy google
Divide array into two subsets with minimum difference Hard microsoft
Area of intersection of two rectangles Easy google
Count Servers that Communicate Medium amazon google
Check if a graph is minimally-connected Medium facebook
Split string into fewest palindromic substrings Hard google
Alice Joins Probability Student Club by Calculating Expected Values of Probabilistic Games Hard two-sigma
Describe and give an example of Ad-hoc, Parametric and Subtype polymorphism Medium microsoft
Run a Markov chain and count state visits Easy google
Map of Highest Peak Medium
Construct Binary Search Tree BST from Postorder Traversal Medium google
Flatten a nested dictionary Easy stripe
Busiest period in a building Easy amazon
Grid Game Medium
Sort a linked list in O(n log n) time and constant space Medium google
Implement a 2D iterator class Medium uber
Length of the longest path in a weighted tree Hard uber
First Completely Painted Row or Column Medium
Minimum Cost to Make at Least One Valid Path in a Grid Hard google
Neighboring Bitwise XOR Medium
Bitwise XOR of All Pairings Medium
Minimize XOR Medium
Generate random numbers from list based on given probabilities Medium triplebyte
Sort a list using reverse sublist operation Hard
Find the Prefix Common Array of Two Arrays Medium
Minimum Length of String After Operations Medium
Check if a Parentheses String Can Be Valid Medium
Construct K Palindrome Strings Medium uber
Find Missing 1000 Numbers in Large Range Medium two sigma
Explaining Web Cookies to Non-Technical Person Medium airtable
Explaining API vs SDK to Non-Technical Person Medium amazon
Decrypt XOR-Encoded Hexadecimal String Medium apple
Decode Base64 String to Hex Easy google
Convert Hex String to Base64 Easy paypal
Find Closest Coin by Manhattan Distance Easy google
Count Digits Without Loops Easy amazon
Solve System of Linear Addition Equations Hard google
Calculate Courier Active Time from Event Logs Easy postmates
Key-Value Store with Max Key Query Hard google
Merge Two Sorted Iterators Medium two-sigma
Implement Quack Data Structure with Three Stacks Hard google
Alternating Add-Subtract Curried Function Medium
Validate Mastermind Game Guesses Medium facebook
Interleave Ranked Song Lists for Playlist Medium spotify