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Problems

4,005 problems

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

With video · 4,005 results

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TitleSolutionAcceptDifficultyTopics
151. Reverse Words in a StringVideo
Solution57.8%Medium
String, Two Pointers· 30 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
155. Min StackVideo
Solution58.5%Medium
Design, Stack· 37 companies
156. Binary Tree Upside DownVideoPremium
Solution65.4%Medium
Binary Tree, Depth-First Search +1· 2 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
159. Longest Substring with At Most Two Distinct CharactersVideoPremium
Solution57.0%Medium
Hash Table, Sliding Window +1· 5 companies
160. Intersection of Two Linked ListsVideo
Solution64.6%Easy
Hash Table, Linked List +1· 13 companies
161. One Edit DistanceVideoPremium
Solution34.4%Medium
String, Two Pointers· 8 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
165. Compare Version NumbersVideo
Solution46.8%Medium
String, Two Pointers· 11 companies
166. Fraction to Recurring DecimalVideo
Solution31.3%Medium
Hash Table, Math +1· 10 companies
167. Two Sum II - Input Array Is SortedVideo
Solution65.5%Medium
Array, Binary Search +1· 16 companies
168. Excel Sheet Column TitleVideo
Solution47.9%Easy
Math, String· 10 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
171. Excel Sheet Column NumberVideo
Solution68.6%Easy
Math, String· 9 companies
172. Factorial Trailing ZeroesVideo
Solution47.5%Medium
Math· 5 companies
173. Binary Search Tree IteratorVideo
Solution76.9%Medium
Binary Search Tree, Binary Tree +4· 8 companies
174. Dungeon GameVideo
Solution42.2%Hard
Array, Dynamic Programming +1· 8 companies
175. Combine Two TablesVideo
Solution80.1%Easy
Database· 8 companies
176. Second Highest SalaryVideo
Solution48.7%Medium
Database· 19 companies
177. Nth Highest SalaryVideo
Solution40.5%Medium
Database· 11 companies
178. Rank ScoresVideo
Solution69.1%Medium
Database· 6 companies
179. Largest NumberVideo
Solution43.9%Medium
Array, Greedy +2· 23 companies
180. Consecutive NumbersVideo
Solution49.7%Medium
Database· 9 companies
181. Employees Earning More Than Their ManagersVideo
Solution74.0%Easy
Database· 10 companies
182. Duplicate EmailsVideo
Solution74.6%Easy
Database· 7 companies
183. Customers Who Never OrderVideo
Solution72.6%Easy
Database· 6 companies
184. Department Highest SalaryVideo
Solution59.9%Medium
Database· 7 companies
185. Department Top Three SalariesVideo
Solution62.1%Hard
Database· 11 companies
186. Reverse Words in a String IIVideoPremium
Solution56.6%Medium
String, Two Pointers· 4 companies
187. Repeated DNA SequencesVideo
Solution53.7%Medium
Bit Manipulation, Hash Function +4· 7 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
190. Reverse BitsVideo
Solution69.2%Easy
Bit Manipulation, Divide and Conquer· 9 companies
191. Number of 1 BitsVideo
Solution77.7%Easy
Bit Manipulation, Divide and Conquer· 11 companies
192. Word FrequencyVideo
Solution26.3%Medium
Shell· 4 companies
193. Valid Phone NumbersVideo
Solution26.6%Easy
Shell· 4 companies
194. Transpose FileVideo
Solution27.1%Medium
Shell· 3 companies
195. Tenth LineVideo
Solution33.8%Easy
Shell· 4 companies
196. Delete Duplicate EmailsVideo
Solution67.1%Easy
Database· 9 companies
197. Rising TemperatureVideo
Solution52.4%Easy
Database· 12 companies
198. House RobberVideo
Solution53.6%Medium
Array, Dynamic Programming· 40 companies
199. Binary Tree Right Side ViewVideo
Solution71.5%Medium
Binary Tree, Breadth-First Search +2· 14 companies
200. Number of IslandsVideo
Solution65.2%Medium
Array, Breadth-First Search +3· 86 companies
Showing 151–200 of 4,005