Problems

Title	Difficulty	Companies
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
Word Subsets	Medium	amazon facebook google
Find nearest larger number for index in an array	Medium	google
Counting Words With a Given Prefix	Easy
Implement 3 stacks in 1 list	Hard	microsoft
Implement a bit array	Medium	amazon
Count Prefix and Suffix Pairs 1	Easy
Design a Sparse Array	Easy	facebook
String Matching in an Array	Easy	amazon
Minimum Number of Operations to Move All Balls to Each Box	Medium
Design hit counter with range queries	Easy	riot-games
Square root of a real number	Medium
Shifting Letters II	Medium
Check if target word exists in matrix horizontally or vertically	Easy	microsoft
Break a string into lines of length k without breaking words	Medium	amazon
Expected number of rounds to reach one remaining coin	Easy	microsoft
Maximum coins from top-left to bottom-right with right or down moves	Medium	zillow
Smallest set to cover all intervals	Medium	google
Number of Ways to Split Array	Medium
Generate a finite, but an arbitrarily large binary tree in O(1) time	Medium	jane-street
Find all starting indices of anagrams of a word in a string	Hard
Count Vowel Strings in Ranges	Medium
Best Sightseeing Pair	Medium	wayfair
Find Largest Value in Each Tree Row Problem	Medium	amazon apple facebook linkedin microsoft
Check if one can reach the last index in a list of hops starting with index 0	Medium	pinterest
Check if doubly linked list is palindrome	Easy	google
Shortest substring containing all characters in a set	Medium	square
Return two prime numbers that sum to a given even number	Easy	alibaba
Find Minimum Diameter After Merging Two Trees	Hard
Minimum Number of Operations to Sort a Binary Tree by Level	Medium
Maximum Number of K-Divisible Components	Hard
Reverse Odd Levels of Binary Tree Problem	Medium
Final Prices With a Special Discount in a Shop	Easy
Construct String With Repeat Limit	Medium
Final Array State After K Multiplication Operations 1 Problem	Easy
Maximum Average Pass Ratio	Medium
Continuous Subarrays	Medium
Find Score of an Array After Marking All Elements	Medium
Take Gifts From the Richest Pile	Easy
Maximum Beauty of an Array After Applying Operation	Medium
Find Longest Special Substring That Occurs Thrice 2	Medium
Find Longest Special Substring That Occurs Thrice 1	Medium