| Find Champion II | Medium | | |
| Maximum Matrix Sum Problem | Medium | | |
| Rotating the Box Problem | Medium | | |
| Flip Columns For Maximum Number of Equal Rows Problem | Medium | | |
| Count Unguarded Cells in the Grid Problem | Medium | | |
| Take K of Each Character From Left and Right Problem | Medium | | |
| Maximum Sum of Distinct Subarrays With Length K Problem | Medium | | |
| Find the Power of K-Size Subarrays 1 | Medium | | |
| Shortest Subarray to be Removed to Make Array Sorted Problem | Medium | | |
| Minimized Maximum of Products Distributed to Any Store Problem | Medium | | |
| Count the Number of Fair Pairs Problem | Medium | | |
| Two Best Non-Overlapping Events Problem | Medium | | |
| Maximum Earnings From Taxi Problem | Medium | | |
| Most Beautiful Item for Each Query Problem | Medium | | |
| Prime Subtraction Operation Problem | Medium | | |
| Shortest Subarray With OR at Least K 2 Problem | Medium | | |
| Minimum Array End Problem | Medium | | |
| Maximum XOR for Each Query Problem | Medium | | |
| Largest Combination With Bitwise AND Greater Than Zero Problem | Medium | | |
| Find if Array Can Be Sorted Problem | Medium | | |
| Minimum Number of Changes to Make Binary String Beautiful Problem | Medium | | |
| String Compression 3 Problem | Medium | | |
| Maximum Number of Moves in a Grid Problem | Medium | | |
| Longest Square Streak in an Array Problem | Medium | | |
| Count Square Submatrices with All Ones Problem | Medium | google | |
| Remove Sub-Folders from the Filesystem Problem | Medium | amazon
facebook
google | |
| Diagonal Traverse Problem | Medium | amazon
apple
ebay
facebook
google
microsoft
quora
splunk | |
| Kth Largest Sum in a Binary Tree Problem | Medium | | |
| Split a String Into the Max Number of Unique Substrings Problem | Medium | | |
| Find Kth Bit in Nth Binary String Problem | Medium | | |
| Count Number of Maximum Bitwise-OR Subsets Problem | Medium | | |
| Maximum Swap Problem | Medium | amazon
apple
bytedance
facebook
microsoft
uber | |
| Separate Black and White Balls Problem | Medium | | |
| Maximal Score After Applying K Operations Problem | Medium | | |
| Divide Intervals Into Minimum Number of Groups Problem | Medium | | |
| The Number of the Smallest Unoccupied Chair Problem | Medium | | |
| Maximum Width Ramp Problem | Medium | ebay
facebook
google | |
| Minimum Add to Make Parentheses Valid Problem | Medium | amazon
facebook
servicenow | |
| Sentence Similarity 2 - with transitive word pairs | Medium | amazon
bloomberg
google | |
| Sentence Similarity 3 - By Insertion | Medium | | |
| 3Sum Smaller | Medium | google
ibm
mathworks | |
| Divide Players Into Teams of Equal Skill Problem | Medium | | |
| Make Sum Divisible by P Problem | Medium | | |
| Check If Array Pairs Are Divisible by k Problem | Medium | paypal | |
| Design a Stack With Increment Operation Problem | Medium | microsoft | |
| Find the Length of the Longest Common Prefix Problem | Medium | | |
| Extra Characters in a String Problem | Medium | | |
| Find the Longest Substring Containing Vowels in Even Counts Problem | Medium | microsoft | |
| Longest Subarray With Maximum Bitwise AND Problem | Medium | | |
| XOR Queries of a Subarray Problem | Medium | airtel | |