IBM
166 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1963. Minimum Number of Swaps to Make the String Balanced | Medium | 34.6% | TopicsTwo PointersStringStackGreedyBracket Sequences |
| 1163. Last Substring in Lexicographical Order | Hard | 34.6% | TopicsTwo PointersStringLyndon Factorization |
| 921. Minimum Add to Make Parentheses Valid | Medium | 34.6% | TopicsStringStackGreedyBracket Sequences |
| 45. Jump Game II | Medium | 34.6% | TopicsArrayDynamic ProgrammingGreedy |
| Heaters | Medium | 34.6% | TopicsArrayTwo PointersBinary SearchSorting |
| 1052. Grumpy Bookstore Owner | Medium | 34.6% | TopicsArraySliding Window |
| 1604. Alert Using Same Key-Card Three or More Times in a One Hour Period | Medium | 34.6% | TopicsArrayHash TableStringSorting |
| 155. Min Stack | Medium | 34.6% | TopicsStackDesign |
| 1513. Number of Substrings With Only 1s | Medium | 34.6% | TopicsMathString |
| 1877. Minimize Maximum Pair Sum in Array | Medium | 34.6% | TopicsArrayTwo PointersGreedySorting |
| 2273. Find Resultant Array After Removing Anagrams | Easy | 34.6% | TopicsArrayHash TableStringSorting |
| 1312. Minimum Insertion Steps to Make a String Palindrome | Hard | 34.6% | TopicsStringDynamic Programming |
| 2429. Minimize XOR | Medium | 34.6% | TopicsGreedyBit Manipulation |
| Max Consecutive Ones | Easy | 34.6% | TopicsArray |
| 875. Koko Eating Bananas | Medium | 34.6% | TopicsArrayBinary Search |
| Find Product Recommendation Pairs | Medium | 34.6% | TopicsDatabase |
| 72. Edit Distance | Medium | 34.6% | TopicsStringDynamic Programming |
| Sum of Two Integers | Medium | 34.6% | TopicsMathBit Manipulation |
| 2402. Meeting Rooms III | Hard | 34.6% | TopicsArrayHash TableSortingHeap (Priority Queue)Simulation |
| 191. Number of 1 Bits | Easy | 34.6% | TopicsDivide and ConquerBit Manipulation |
| 2116. Check if a Parentheses String Can Be Valid | Medium | 34.6% | TopicsStringStackGreedyBracket Sequences |
| 941. Valid Mountain Array | Easy | 34.6% | TopicsArray |
| 413. Arithmetic Slices | Medium | 34.6% | TopicsArrayDynamic ProgrammingSliding Window |
| 2414. Length of the Longest Alphabetical Continuous Substring | Medium | 34.6% | TopicsString |
| 77. Combinations | Medium | 34.6% | TopicsBacktracking |
