Cisco
77 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 567. Permutation in String | Medium | 37.1% | TopicsHash TableTwo PointersStringSliding Window |
| Sliding Window Maximum | Hard | 37.1% | TopicsArrayQueueSliding WindowHeap (Priority Queue)Monotonic QueueRange Minimum/Maximum Query |
| Search in Rotated Sorted Array II | Medium | 37.1% | TopicsArrayBinary Search |
| 33. Search in Rotated Sorted Array | Medium | 37.1% | TopicsArrayBinary Search |
| 75. Sort Colors | Medium | 37.1% | TopicsArrayTwo PointersSortingQuicksortBubble Sort |
| Pow(x, n) | Medium | 37.1% | TopicsMathRecursion |
| 287. Find the Duplicate Number | Medium | 37.1% | TopicsArrayTwo PointersBinary SearchBit ManipulationPigeonhole PrincipleFloyd's Cycle Finding Algorithm |
| Integer to English Words | Hard | 37.1% | TopicsMathStringRecursion |
| Design Search Autocomplete System | Hard | 37.1% | TopicsStringDepth-First SearchDesignTrieSortingHeap (Priority Queue)Data Stream |
| 76. Minimum Window Substring | Hard | 37.1% | TopicsHash TableStringSliding Window |
| 1143. Longest Common Subsequence | Medium | 37.1% | TopicsStringDynamic ProgrammingLongest Common Subsequence |
| 84. Largest Rectangle in Histogram | Hard | 37.1% | TopicsArrayStackMonotonic StackRange Minimum/Maximum Query |
| 1047. Remove All Adjacent Duplicates In String | Easy | 37.1% | TopicsStringStack |
| 207. Course Schedule | Medium | 37.1% | TopicsDepth-First SearchBreadth-First SearchGraph TheoryTopological SortDirected Acyclic Graph |
| 312. Burst Balloons | Hard | 37.1% | TopicsArrayDynamic Programming |
| 1293. Shortest Path in a Grid with Obstacles Elimination | Hard | 37.1% | TopicsArrayBreadth-First SearchMatrix |
| 9. Palindrome Number | Easy | 37.1% | TopicsMath |
| 525. Contiguous Array | Medium | 37.1% | TopicsArrayHash TablePrefix Sum |
| 981. Time Based Key-Value Store | Medium | 37.1% | TopicsHash TableStringBinary SearchDesign |
| 127. Word Ladder | Hard | 37.1% | TopicsHash TableStringBreadth-First SearchBidirectional Search |
| 540. Single Element in a Sorted Array | Medium | 37.1% | TopicsArrayBinary Search |
| 242. Valid Anagram | Easy | 37.1% | TopicsHash TableStringSorting |
| Maximum Length of Pair Chain | Medium | 37.1% | TopicsArrayDynamic ProgrammingGreedySortingLongest Increasing Subsequence |
| 787. Cheapest Flights Within K Stops | Medium | 37.1% | TopicsDynamic ProgrammingDepth-First SearchBreadth-First SearchGraph TheoryHeap (Priority Queue)Shortest Path |
| 11. Container With Most Water | Medium | 37.1% | TopicsArrayTwo PointersGreedy |
