Snowflake
100 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Valid Word Abbreviation | Easy | 38.6% | TopicsTwo PointersString |
| Implement Trie (Prefix Tree) | Medium | 38.6% | TopicsHash TableStringDesignTrie |
| 1631. Path With Minimum Effort | Medium | 38.6% | TopicsArrayBinary SearchDepth-First SearchBreadth-First SearchUnion-FindHeap (Priority Queue)MatrixDijkstra's Algorithm |
| 402. Remove K Digits | Medium | 38.6% | TopicsStringStackGreedyMonotonic Stack |
| 121. Best Time to Buy and Sell Stock | Easy | 38.6% | TopicsArrayDynamic Programming |
| 881. Boats to Save People | Medium | 38.6% | TopicsArrayTwo PointersGreedySortingTimsort |
| 1604. Alert Using Same Key-Card Three or More Times in a One Hour Period | Medium | 38.6% | TopicsArrayHash TableStringSorting |
| 622. Design Circular Queue | Medium | 38.6% | TopicsArrayLinked ListDesignQueue |
| Paint Fence | Medium | 38.6% | TopicsDynamic Programming |
| 2. Add Two Numbers | Medium | 38.6% | TopicsLinked ListMathRecursion |
| 45. Jump Game II | Medium | 38.6% | TopicsArrayDynamic ProgrammingGreedy |
| The Maze | Medium | 38.6% | TopicsArrayDepth-First SearchBreadth-First SearchMatrix |
| 2458. Height of Binary Tree After Subtree Removal Queries | Hard | 38.6% | TopicsArrayTreeDepth-First SearchBreadth-First SearchBinary Tree |
| Design Circular Deque | Medium | 38.6% | TopicsArrayLinked ListDesignQueue |
| 1472. Design Browser History | Medium | 38.6% | TopicsArrayLinked ListStackDesignDoubly-Linked ListData Stream |
| 200. Number of Islands | Medium | 38.6% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 886. Possible Bipartition | Medium | 38.6% | TopicsDepth-First SearchBreadth-First SearchUnion-FindGraph TheoryGraph ColoringBipartite Graph |
| 934. Shortest Bridge | Medium | 38.6% | TopicsArrayDepth-First SearchBreadth-First SearchMatrix |
| Construct Quad Tree | Medium | 38.6% | TopicsArrayDivide and ConquerTreeMatrix |
| Decode String | Medium | 38.6% | TopicsStringStackRecursion |
| 75. Sort Colors | Medium | 38.6% | TopicsArrayTwo PointersSortingQuicksortBubble Sort |
| 94. Binary Tree Inorder Traversal | Easy | 38.6% | TopicsStackTreeDepth-First SearchBinary Tree |
| 821. Shortest Distance to a Character | Easy | 38.6% | TopicsArrayTwo PointersString |
| Patching Array | Hard | 38.6% | TopicsArrayGreedy |
| Two Sum II - Input Array Is Sorted | Medium | 38.6% | TopicsArrayTwo PointersBinary Search |
