Skip to content

For employers Sign in

Make and follow sheets.Sign in

Problems

942 problems

Has video Premium only Reset

Array566 Dynamic Programming328 String188 Math182 Binary Search133 Hash Table132 Sorting104 Greedy102 Bit Manipulation101 Graph92 Depth-First Search88 Heap (Priority Queue)77 Prefix Sum75 Matrix74 Breadth-First Search70 All topics

Hard · With video · 942 results

Sign in to see which of these you have solved.Sign in

TitleSolutionAcceptDifficultyTopics

2122. Recover the Original ArrayVideo

Solution42.0%Hard

Array, Enumeration +3· 1 company

2123. Minimum Operations to Remove Adjacent Ones in MatrixVideoPremium

Solution42.5%Hard

Array, Graph +1· 1 company

2127. Maximum Employees to Be Invited to a MeetingVideo

Solution61.8%Hard

Depth-First Search, Graph +1· 5 companies

2132. Stamping the GridVideo

Solution36.3%Hard

Array, Greedy +2· 1 company

2136. Earliest Possible Day of Full BloomVideo

Solution71.4%Hard

Array, Greedy +1· 1 company

2141. Maximum Running Time of N ComputersVideo

Solution56.4%Hard

Array, Binary Search +2· 6 companies

2147. Number of Ways to Divide a Long CorridorVideo

Solution54.6%Hard

Dynamic Programming, Math +1· 3 companies

2151. Maximum Good People Based on StatementsVideo

Solution52.9%Hard

Array, Backtracking +2· 3 companies

2153. The Number of Passengers in Each Bus IIVideoPremium

Solution40.6%Hard

2156. Find Substring With Given Hash ValueVideo

Solution27.3%Hard

Hash Function, Rolling Hash +2· 1 company

2157. Groups of StringsVideo

Solution28.2%Hard

Bit Manipulation, String +1· 1 company

2158. Amount of New Area Painted Each DayVideoPremium

Solution55.3%Hard

Array, Ordered Set +1· 2 companies

2163. Minimum Difference in Sums After Removal of ElementsVideo

Solution69.8%Hard

Array, Dynamic Programming +1· 7 companies

2167. Minimum Time to Remove All Cars Containing Illegal GoodsVideo

Solution42.2%Hard

Dynamic Programming, String· 1 company

2172. Maximum AND Sum of ArrayVideo

Solution51.4%Hard

Array, Bit Manipulation +2· 1 company

2173. Longest Winning StreakVideoPremium

Solution54.7%Hard

Database· 1 company

2179. Count Good Triplets in an ArrayVideo

Solution65.2%Hard

Array, Binary Indexed Tree +5· 3 companies

2183. Count Array Pairs Divisible by KVideo

Solution30.7%Hard

Array, Math +1· 2 companies

2188. Minimum Time to Finish the RaceVideo

Solution43.4%Hard

Array, Dynamic Programming· 1 company

2193. Minimum Number of Moves to Make PalindromeVideo

Solution52.7%Hard

Binary Indexed Tree, Greedy +2· 5 companies

2197. Replace Non-Coprime Numbers in ArrayVideo

Solution57.7%Hard

Array, Math +2· 5 companies

2199. Finding the Topic of Each PostVideoPremium

Solution50.6%Hard

Database· 1 company

2203. Minimum Weighted Subgraph With the Required PathsVideo

Solution43.8%Hard

Graph, Shortest Path· 1 company

2204. Distance to a Cycle in Undirected GraphVideoPremium

Solution73.4%Hard

Breadth-First Search, Depth-First Search +2· 2 companies

2209. Minimum White Tiles After Covering With CarpetsVideo

Solution39.3%Hard

Dynamic Programming, Prefix Sum +1· 1 company

2213. Longest Substring of One Repeating CharacterVideo

Solution65.8%Hard

Array, Ordered Set +2· 1 company

2218. Maximum Value of K Coins From PilesVideo

Solution60.5%Hard

Array, Dynamic Programming +1· 1 company

2223. Sum of Scores of Built StringsVideo

Solution51.0%Hard

Binary Search, Hash Function +4· 1 company

2227. Encrypt and Decrypt StringsVideo

Solution38.8%Hard

Array, Design +3· 3 companies

2234. Maximum Total Beauty of the GardensVideo

Solution30.4%Hard

Array, Binary Search +3· 1 company

2242. Maximum Score of a Node SequenceVideo

Solution40.5%Hard

Array, Enumeration +2· 1 company

2246. Longest Path With Different Adjacent CharactersVideo

Solution54.2%Hard

Array, Depth-First Search +4· 5 companies

2251. Number of Flowers in Full BloomVideo

Solution57.8%Hard

Array, Binary Search +4· 7 companies

2254. Design Video Sharing PlatformVideoPremium

–64.1%Hard

Design, Hash Table +2· 1 company

2258. Escape the Spreading FireVideo

Solution39.7%Hard

Array, Binary Search +2· 4 companies

2262. Total Appeal of A StringVideo

Solution56.4%Hard

Dynamic Programming, Hash Table +1· 2 companies

2263. Make Array Non-decreasing or Non-increasingVideoPremium

Solution64.7%Hard

Dynamic Programming, Greedy· 2 companies

2267. Check if There Is a Valid Parentheses String PathVideo

Solution57.2%Hard

Array, Dynamic Programming +1· 1 company

2272. Substring With Largest VarianceVideo

Solution46.1%Hard

Array, Dynamic Programming· 1 company

2276. Count Integers in IntervalsVideo

Solution36.1%Hard

Design, Ordered Set +1· 4 companies

2277. Closest Node to Path in TreeVideoPremium

–62.1%Hard

Array, Breadth-First Search +2· 1 company

2281. Sum of Total Strength of WizardsVideo

Solution29.8%Hard

Array, Monotonic Stack +2· 1 company

2286. Booking Concert Tickets in GroupsVideo

Solution20.1%Hard

Binary Indexed Tree, Binary Search +2· 1 company

2290. Minimum Obstacle Removal to Reach CornerVideo

Solution71.1%Hard

Array, Breadth-First Search +4· 2 companies

2296. Design a Text EditorVideo

Solution52.1%Hard

Design, Doubly-Linked List +4· 10 companies

2301. Match Substring After ReplacementVideo

Solution43.3%Hard

Array, Hash Table +2· 1 company

2302. Count Subarrays With Score Less Than KVideo

Solution62.3%Hard

Array, Binary Search +2· 5 companies

2306. Naming a CompanyVideo

Solution46.4%Hard

Array, Bit Manipulation +3· 1 company

2307. Check for Contradictions in EquationsVideoPremium

Solution43.8%Hard

Array, Depth-First Search +2· 2 companies

2312. Selling Pieces of WoodVideo

Solution52.8%Hard

Array, Dynamic Programming +1· 1 company

Showing 451–500 of 942