Infosys
254 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 169. Majority Element | Easy | 54.1% | TopicsArrayHash TableDivide and ConquerSortingCountingBoyer–Moore Majority Vote Algorithm |
| Minimum Path Sum | Medium | 54.1% | TopicsArrayDynamic ProgrammingMatrix |
| 424. Longest Repeating Character Replacement | Medium | 54.1% | TopicsHash TableStringSliding Window |
| 2. Add Two Numbers | Medium | 50% | TopicsLinked ListMathRecursion |
| 21. Merge Two Sorted Lists | Easy | 50% | TopicsLinked ListRecursion |
| Remove Duplicates from Sorted Array | Easy | 50% | TopicsArrayTwo Pointers |
| 54. Spiral Matrix | Medium | 50% | TopicsArrayMatrixSimulation |
| 4Sum | Medium | 50% | TopicsArrayTwo PointersSorting |
| 33. Search in Rotated Sorted Array | Medium | 50% | TopicsArrayBinary Search |
| Range Sum Query - Immutable | Easy | 50% | TopicsArrayDesignPrefix Sum |
| Delete Operation for Two Strings | Medium | 50% | TopicsStringDynamic ProgrammingLongest Common Subsequence |
| 347. Top K Frequent Elements | Medium | 50% | TopicsArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect |
| 1929. Concatenation of Array | Easy | 50% | TopicsArraySimulation |
| Split Array Largest Sum | Hard | 50% | TopicsArrayBinary SearchDynamic ProgrammingGreedyPrefix Sum |
| 1838. Frequency of the Most Frequent Element | Medium | 50% | TopicsArrayBinary SearchGreedySliding WindowSortingPrefix Sum |
| Candy | Hard | 50% | TopicsArrayGreedy |
| Largest Number | Medium | 50% | TopicsArrayStringGreedySorting |
| 131. Palindrome Partitioning | Medium | 50% | TopicsStringDynamic ProgrammingBacktracking |
| Palindrome Partitioning II | Hard | 50% | TopicsStringDynamic Programming |
| 152. Maximum Product Subarray | Medium | 50% | TopicsArrayDynamic Programming |
| Frog Jump | Hard | 50% | TopicsArrayDynamic Programming |
| 1563. Stone Game V | Hard | 50% | TopicsArrayMathDynamic ProgrammingGame Theory |
| 7. Reverse Integer | Medium | 45% | TopicsMath |
| 125. Valid Palindrome | Easy | 45% | TopicsTwo PointersString |
| 215. Kth Largest Element in an Array | Medium | 45% | TopicsArrayDivide and ConquerSortingHeap (Priority Queue)Quickselect |
