Hard

Title	Difficulty	Companies	Videos
Minimum Number of Moves to Make Palindrome	Hard
Minimum Number of Operations to Make Array Continuous	Hard
Minimum Number of Operations to Make Arrays Similar	Hard
Minimum Number of Operations to Make String Sorted	Hard
Minimum Number of Valid Strings to Form Target II	Hard
Minimum Number of Visited Cells in a Grid	Hard
Minimum Obstacle Removal to Reach Corner	Hard
Minimum Operations to Make a Subsequence	Hard
Minimum Operations to Make Array Equal to Target	Hard
Minimum Skips to Arrive at Meeting On Time	Hard
Minimum Space Wasted From Packaging	Hard
Minimum Sum of Values by Dividing Array	Hard
Minimum Time to Finish the Race	Hard
Minimum Time to Make Array Sum At Most x	Hard
Minimum Time to Remove All Cars Containing Illegal Goods	Hard
Minimum Total Cost to Make Arrays Unequal	Hard
Minimum Weighted Subgraph With the Required Paths	Hard
Minimum White Tiles After Covering With Carpets	Hard
Minimum XOR Sum of Two Arrays	Hard
Next Greater Element IV	Hard
Nth Magical Number	Hard
Number of Beautiful Partitions	Hard
Number of Distinct Roll Sequences	Hard
Number of Pairs Satisfying Inequality	Hard
Number of Squareful Arrays	Hard	apple
Number of Subarrays With AND Value of K	Hard
Number of Unique Good Subsequences	Hard
Number of Valid Move Combinations On Chessboard	Hard
Number of Valid Words for Each Puzzle	Hard	dropbox
Number of Ways to Divide a Long Corridor	Hard
Number of Ways to Separate Numbers	Hard
Palindrome Partitioning IV	Hard
Palindrome Rearrangement Queries	Hard
Parallel Courses II	Hard	google
Peaks in Array	Hard
Power of Heroes	Hard
Probability of a Two Boxes Having The Same Number of Distinct Balls	Hard
Process Restricted Friend Requests	Hard
Rearranging Fruits	Hard
Replace Non-Coprime Numbers in Array	Hard
Reverse Subarray To Maximize Array Value	Hard	codenation
Robot Collisions	Hard
Select Cells in Grid With Maximum Score	Hard
Shortest Distance After Road Addition Queries II	Hard
Shortest Impossible Sequence of Rolls	Hard
Sort Items by Groups Respecting Dependencies	Hard	google
Special Binary String	Hard	citrix coursera quip visa
Split the Array to Make Coprime Products	Hard
Stamping The Sequence	Hard	facebook google uber
Stream of Characters	Hard	amazon facebook google