IBM
166 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1319. Number of Operations to Make Network Connected | Medium | 43.6% | TopicsDepth-First SearchBreadth-First SearchUnion-FindGraph Theory |
| 54. Spiral Matrix | Medium | 43.6% | TopicsArrayMatrixSimulation |
| 1974. Minimum Time to Type Word Using Special Typewriter | Easy | 43.6% | TopicsStringGreedy |
| 1910. Remove All Occurrences of a Substring | Medium | 43.6% | TopicsStringStackSimulation |
| 2948. Make Lexicographically Smallest Array by Swapping Elements | Medium | 43.6% | TopicsArrayUnion-FindSorting |
| 206. Reverse Linked List | Easy | 43.6% | TopicsLinked ListRecursion |
| 451. Sort Characters By Frequency | Medium | 43.6% | TopicsHash TableStringSortingHeap (Priority Queue)Bucket SortCounting |
| 217. Contains Duplicate | Easy | 43.6% | TopicsArrayHash TableSorting |
| Reverse Words in a String | Medium | 43.6% | TopicsTwo PointersString |
| 901. Online Stock Span | Medium | 43.6% | TopicsStackDesignMonotonic StackData Stream |
| 141. Linked List Cycle | Easy | 43.6% | TopicsHash TableLinked ListTwo PointersFloyd's Cycle Finding Algorithm |
| 1802. Maximum Value at a Given Index in a Bounded Array | Medium | 43.6% | TopicsMathBinary SearchGreedy |
| Next Permutation | Medium | 43.6% | TopicsArrayTwo Pointers |
| Asteroid Collision | Medium | 43.6% | TopicsArrayStackSimulation |
| 322. Coin Change | Medium | 43.6% | TopicsArrayDynamic ProgrammingBreadth-First SearchKnapsack ProblemComplete Knapsack |
| 1046. Last Stone Weight | Easy | 43.6% | TopicsArrayHeap (Priority Queue) |
| 2405. Optimal Partition of String | Medium | 43.6% | TopicsHash TableStringGreedy |
| 2193. Minimum Number of Moves to Make Palindrome | Hard | 43.6% | TopicsTwo PointersStringGreedyBinary Indexed Tree |
| 1685. Sum of Absolute Differences in a Sorted Array | Medium | 43.6% | TopicsArrayMathPrefix Sum |
| 387. First Unique Character in a String | Easy | 43.6% | TopicsHash TableStringQueueCounting |
| 2. Add Two Numbers | Medium | 43.6% | TopicsLinked ListMathRecursion |
| 42. Trapping Rain Water | Hard | 43.6% | TopicsArrayTwo PointersDynamic ProgrammingStackMonotonic Stack |
| 22. Generate Parentheses | Medium | 43.6% | TopicsStringDynamic ProgrammingBacktrackingBracket Sequences |
| 1758. Minimum Changes To Make Alternating Binary String | Easy | 43.6% | TopicsString |
| 75. Sort Colors | Medium | 43.6% | TopicsArrayTwo PointersSortingQuicksortBubble Sort |
