SAP
34 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1. Two Sum | Easy | 100% | TopicsArrayHash Table |
| 2065. Maximum Path Quality of a Graph | Hard | 100% | TopicsArrayBacktrackingGraph Theory |
| 2954. Count the Number of Infection Sequences | Hard | 100% | TopicsArrayMathCombinatoricsFermat's Little Theorem |
| 1349. Maximum Students Taking Exam | Hard | 100% | TopicsArrayDynamic ProgrammingBit ManipulationMatrixBitmaskMaximum FlowMaximum MatchingBipartite GraphEdmonds–Karp AlgorithmMPM AlgorithmPush-Relabel AlgorithmMinimum CutMatching (Graph)Flow NetworkDinic's Algorithm |
| Movie Rating | Medium | 100% | TopicsDatabase |
| 2552. Count Increasing Quadruplets | Hard | 100% | TopicsArrayDynamic ProgrammingBinary Indexed TreeEnumerationPrefix Sum |
| 56. Merge Intervals | Medium | 96.3% | TopicsArraySortingQuicksort |
| 11. Container With Most Water | Medium | 87.1% | TopicsArrayTwo PointersGreedy |
| 121. Best Time to Buy and Sell Stock | Easy | 87.1% | TopicsArrayDynamic Programming |
| 5. Longest Palindromic Substring | Medium | 87.1% | TopicsTwo PointersStringDynamic ProgrammingManacher |
| 14. Longest Common Prefix | Easy | 81% | TopicsArrayStringTrie |
| 20. Valid Parentheses | Easy | 81% | TopicsStringStackBracket Sequences |
| 146. LRU Cache | Medium | 81% | TopicsHash TableLinked ListDesignDoubly-Linked List |
| 9. Palindrome Number | Easy | 81% | TopicsMath |
| 200. Number of Islands | Medium | 73.1% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 206. Reverse Linked List | Easy | 73.1% | TopicsLinked ListRecursion |
| 49. Group Anagrams | Medium | 73.1% | TopicsArrayHash TableStringSorting |
| 283. Move Zeroes | Easy | 73.1% | TopicsArrayTwo Pointers |
| 3. Longest Substring Without Repeating Characters | Medium | 73.1% | TopicsHash TableStringSliding Window |
| 74. Search a 2D Matrix | Medium | 73.1% | TopicsArrayBinary SearchMatrix |
| 215. Kth Largest Element in an Array | Medium | 62% | TopicsArrayDivide and ConquerSortingHeap (Priority Queue)Quickselect |
| 53. Maximum Subarray | Medium | 62% | TopicsArrayDivide and ConquerDynamic Programming |
| 367. Valid Perfect Square | Easy | 62% | TopicsMathBinary Search |
| Leftmost Column with at Least a One | Medium | 62% | TopicsArrayBinary SearchMatrixInteractive |
| Candy | Hard | 62% | TopicsArrayGreedy |
