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Problems

2,209 problems

Has videoPremium onlyReset
Array2,209String870Hash Table786Math682Dynamic Programming666Sorting504Greedy480Binary Search352Depth-First Search335Database303Bit Manipulation283Matrix278Tree261Breadth-First Search255Two Pointers249All topics

With video · 2,209 results

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TitleSolutionAcceptDifficultyTopics
120. TriangleVideo
Solution59.9%Medium
Array, Dynamic Programming· 11 companies
121. Best Time to Buy and Sell StockVideo
Solution57.1%Easy
Array, Dynamic Programming· 92 companies
122. Best Time to Buy and Sell Stock IIVideo
Solution71.4%Medium
Array, Dynamic Programming +1· 28 companies
123. Best Time to Buy and Sell Stock IIIVideo
Solution54.5%Hard
Array, Dynamic Programming· 13 companies
128. Longest Consecutive SequenceVideo
Solution47.0%Medium
Array, Hash Table +1· 40 companies
130. Surrounded RegionsVideo
Solution46.1%Medium
Array, Breadth-First Search +3· 12 companies
134. Gas StationVideo
Solution48.4%Medium
Array, Greedy· 29 companies
135. CandyVideo
Solution49.3%Hard
Array, Greedy· 24 companies
136. Single NumberVideo
Solution78.1%Easy
Array, Bit Manipulation· 15 companies
137. Single Number IIVideo
Solution68.0%Medium
Array, Bit Manipulation· 5 companies
139. Word BreakVideo
Solution49.8%Medium
Array, Dynamic Programming +4· 32 companies
140. Word Break IIVideo
Solution56.4%Hard
Array, Backtracking +5· 16 companies
149. Max Points on a LineVideo
Solution31.6%Hard
Array, Geometry +2· 16 companies
150. Evaluate Reverse Polish NotationVideo
Solution58.5%Medium
Array, Math +1· 18 companies
152. Maximum Product SubarrayVideo
Solution36.7%Medium
Array, Dynamic Programming· 23 companies
153. Find Minimum in Rotated Sorted ArrayVideo
Solution55.3%Medium
Array, Binary Search· 18 companies
154. Find Minimum in Rotated Sorted Array IIVideo
Solution47.2%Hard
Array, Binary Search· 5 companies
157. Read N Characters Given Read4VideoPremium
Solution42.5%Easy
Array, Interactive +1· 3 companies
158. Read N Characters Given read4 II - Call Multiple TimesVideoPremium
Solution43.2%Hard
Array, Interactive +1· 5 companies
162. Find Peak ElementVideo
Solution46.8%Medium
Array, Binary Search· 30 companies
163. Missing RangesVideoPremium
Solution35.5%Easy
Array· 2 companies
164. Maximum GapVideo
Solution53.4%Medium
Array, Bucket Sort +2· 7 companies
167. Two Sum II - Input Array Is SortedVideo
Solution65.5%Medium
Array, Binary Search +1· 16 companies
169. Majority ElementVideo
Solution66.2%Easy
Array, Counting +3· 22 companies
170. Two Sum III - Data structure designVideoPremium
Solution39.1%Easy
Array, Data Stream +3· 2 companies
174. Dungeon GameVideo
Solution42.2%Hard
Array, Dynamic Programming +1· 8 companies
179. Largest NumberVideo
Solution43.9%Medium
Array, Greedy +2· 23 companies
188. Best Time to Buy and Sell Stock IVVideo
Solution51.5%Hard
Array, Dynamic Programming· 11 companies
189. Rotate ArrayVideo
Solution45.3%Medium
Array, Math +1· 27 companies
198. House RobberVideo
Solution53.6%Medium
Array, Dynamic Programming· 40 companies
200. Number of IslandsVideo
Solution65.2%Medium
Array, Breadth-First Search +3· 86 companies
204. Count PrimesVideo
Solution35.8%Medium
Array, Enumeration +2· 17 companies
209. Minimum Size Subarray SumVideo
Solution53.1%Medium
Array, Binary Search +2· 18 companies
212. Word Search IIVideo
Solution38.8%Hard
Array, Backtracking +3· 21 companies
213. House Robber IIVideo
Solution45.3%Medium
Array, Dynamic Programming· 19 companies
215. Kth Largest Element in an ArrayVideo
Solution69.4%Medium
Array, Divide and Conquer +3· 41 companies
216. Combination Sum IIIVideo
Solution73.6%Medium
Array, Backtracking· 4 companies
217. Contains DuplicateVideo
Solution64.8%Easy
Array, Hash Table +1· 20 companies
218. The Skyline ProblemVideo
Solution45.7%Hard
Array, Binary Indexed Tree +5· 13 companies
219. Contains Duplicate IIVideo
Solution51.6%Easy
Array, Hash Table +1· 15 companies
220. Contains Duplicate IIIVideo
Solution25.2%Hard
Array, Bucket Sort +3· 8 companies
221. Maximal SquareVideo
Solution50.7%Medium
Array, Dynamic Programming +1· 28 companies
228. Summary RangesVideo
Solution54.6%Easy
Array· 9 companies
229. Majority Element IIVideo
Solution56.5%Medium
Array, Counting +2· 9 companies
238. Product of Array Except SelfVideo
Solution69.3%Medium
Array, Prefix Sum· 40 companies
239. Sliding Window MaximumVideo
Solution49.1%Hard
Array, Heap (Priority Queue) +3· 48 companies
240. Search a 2D Matrix IIVideo
Solution58.2%Medium
Array, Binary Search +2· 16 companies
243. Shortest Word DistanceVideoPremium
Solution66.3%Easy
Array, String· 8 companies
244. Shortest Word Distance IIVideoPremium
Solution62.8%Medium
Array, Design +3· 4 companies
245. Shortest Word Distance IIIVideoPremium
Solution59.4%Medium
Array, String· 2 companies
Showing 51–100 of 2,209