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464 problems

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Array194Database104Hash Table83String71Depth-First Search57Dynamic Programming49Tree48Math45Sorting43Breadth-First Search40Greedy40Binary Tree38Binary Search31Two Pointers29Matrix28All topics

Medium · Premium · 464 results

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TitleSolutionAcceptDifficultyTopics
1066. Campus Bikes IIVideoPremium
Solution55.9%Medium
Array, Backtracking +3· 1 company
1077. Project Employees IIIVideoPremium
Solution76.8%Medium
Database· 1 company
1087. Brace ExpansionVideoPremium
Solution66.5%Medium
Backtracking, Breadth-First Search +1· 6 companies
1098. Unpopular BooksVideoPremium
Solution43.3%Medium
Database· 1 company
1100. Find K-Length Substrings With No Repeated CharactersVideoPremium
Solution76.5%Medium
Hash Table, Sliding Window +1· 1 company
1101. The Earliest Moment When Everyone Become FriendsVideoPremium
Solution66.0%Medium
Array, Sorting +1· 3 companies
1102. Path With Maximum Minimum ValueVideoPremium
Solution54.6%Medium
Array, Binary Search +5· 3 companies
1107. New Users Daily CountVideoPremium
Solution44.7%Medium
Database· 1 company
1112. Highest Grade For Each StudentVideoPremium
Solution70.8%Medium
Database· 2 companies
1120. Maximum Average SubtreeVideoPremium
Solution66.7%Medium
Binary Tree, Depth-First Search +1· 1 company
1126. Active BusinessesVideoPremium
Solution65.8%Medium
Database· 1 company
1132. Reported Posts IIVideoPremium
Solution32.3%Medium
Database· 1 company
1135. Connecting Cities With Minimum CostVideoPremium
Solution63.5%Medium
Graph, Heap (Priority Queue) +2· 1 company
1136. Parallel CoursesVideoPremium
Solution62.1%Medium
Graph, Topological Sort· 7 companies
1149. Article Views IIVideoPremium
Solution47.1%Medium
Database· 1 company
1151. Minimum Swaps to Group All 1's TogetherVideoPremium
Solution61.2%Medium
Array, Sliding Window· 3 companies
1152. Analyze User Website Visit PatternVideoPremium
Solution44.3%Medium
Array, Hash Table +1· 5 companies
1166. Design File SystemVideoPremium
Solution65.1%Medium
Design, Hash Table +2· 12 companies
1167. Minimum Cost to Connect SticksVideoPremium
Solution71.8%Medium
Array, Greedy +1· 5 companies
1181. Before and After PuzzleVideoPremium
Solution51.8%Medium
Array, Hash Table +2· 1 company
1182. Shortest Distance to Target ColorVideoPremium
Solution56.5%Medium
Array, Binary Search +1· 1 company
1188. Design Bounded Blocking QueueVideoPremium
Solution72.6%Medium
Concurrency· 3 companies
1197. Minimum Knight MovesVideoPremium
Solution41.8%Medium
Breadth-First Search· 13 companies
1198. Find Smallest Common Element in All RowsVideoPremium
Solution76.5%Medium
Array, Binary Search +3· 2 companies
1205. Monthly Transactions IIVideoPremium
Solution41.8%Medium
Database· 1 company
1212. Team Scores in Football TournamentVideoPremium
Solution55.6%Medium
Database· 1 company
1214. Two Sum BSTsVideoPremium
Solution68.2%Medium
Binary Search, Binary Search Tree +5· 1 company
1215. Stepping NumbersVideoPremium
Solution48.2%Medium
Backtracking, Breadth-First Search +1· 1 company
1229. Meeting SchedulerVideoPremium
Solution55.3%Medium
Array, Sorting +1· 11 companies
1230. Toss Strange CoinsVideoPremium
Solution58.1%Medium
Array, Dynamic Programming +2· 1 company
1236. Web CrawlerVideoPremium
Solution68.8%Medium
Breadth-First Search, Depth-First Search +2· 7 companies
1242. Web Crawler MultithreadedVideoPremium
–49.5%Medium
Breadth-First Search, Concurrency +1· 9 companies
1244. Design A LeaderboardVideoPremium
Solution67.9%Medium
Design, Hash Table +1· 9 companies
1245. Tree DiameterVideoPremium
Solution61.1%Medium
Breadth-First Search, Depth-First Search +3· 7 companies
1256. Encode NumberVideoPremium
Solution70.0%Medium
Bit Manipulation, Math +1· 1 company
1257. Smallest Common RegionVideoPremium
Solution68.6%Medium
Array, Breadth-First Search +4· 1 company
1258. Synonymous SentencesVideoPremium
Solution57.2%Medium
Array, Backtracking +3· 3 companies
1264. Page RecommendationsVideoPremium
Solution65.3%Medium
Database· 1 company
1265. Print Immutable Linked List in ReverseVideoPremium
Solution94.0%Medium
Linked List, Recursion +2
1270. All People Report to the Given ManagerVideoPremium
Solution83.8%Medium
Database· 2 companies
1272. Remove IntervalVideoPremium
Solution67.2%Medium
Array· 1 company
1273. Delete Tree NodesVideoPremium
Solution61.2%Medium
Array, Breadth-First Search +2· 1 company
1285. Find the Start and End Number of Continuous RangesVideoPremium
Solution82.1%Medium
Database· 1 company
1308. Running Total for Different GendersVideoPremium
Solution86.3%Medium
Database
1355. Activity ParticipantsVideoPremium
Solution72.3%Medium
Database· 1 company
1364. Number of Trusted Contacts of a CustomerVideoPremium
Solution74.9%Medium
Database· 1 company
1398. Customers Who Bought Products A and B but Not CVideoPremium
Solution71.2%Medium
Database· 1 company
1428. Leftmost Column with at Least a OneVideoPremium
Solution55.3%Medium
Array, Binary Search +2· 3 companies
1429. First Unique NumberVideoPremium
Solution57.8%Medium
Array, Data Stream +3· 5 companies
1430. Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary TreeVideoPremium
Solution47.6%Medium
Binary Tree, Breadth-First Search +2
Showing 101–150 of 464