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Problems

942 problems

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Array566Dynamic Programming328String188Math182Binary Search133Hash Table132Sorting104Greedy102Bit Manipulation101Graph92Depth-First Search88Heap (Priority Queue)77Prefix Sum75Matrix74Breadth-First Search70All topics

Hard · With video · 942 results

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TitleSolutionAcceptDifficultyTopics
1240. Tiling a Rectangle with the Fewest SquaresVideo
Solution55.0%Hard
Backtracking· 3 companies
1246. Palindrome RemovalVideoPremium
Solution46.4%Hard
Array, Dynamic Programming· 1 company
1250. Check If It Is a Good ArrayVideo
Solution65.6%Hard
Array, Math +1· 5 companies
1255. Maximum Score Words Formed by LettersVideo
Solution81.9%Hard
Array, Backtracking +4· 3 companies
1259. Handshakes That Don't CrossVideoPremium
Solution61.1%Hard
Dynamic Programming, Math· 1 company
1263. Minimum Moves to Move a Box to Their Target LocationVideo
Solution49.7%Hard
Array, Breadth-First Search +2· 1 company
1269. Number of Ways to Stay in the Same Place After Some StepsVideo
Solution50.2%Hard
Dynamic Programming· 1 company
1274. Number of Ships in a RectangleVideoPremium
Solution68.7%Hard
Array, Divide and Conquer +1· 2 companies
1278. Palindrome Partitioning IIIVideo
Solution62.2%Hard
Dynamic Programming, String
1284. Minimum Number of Flips to Convert Binary Matrix to Zero MatrixVideo
Solution72.9%Hard
Array, Bit Manipulation +3· 1 company
1289. Minimum Falling Path Sum IIVideo
Solution63.2%Hard
Array, Dynamic Programming +1· 3 companies
1293. Shortest Path in a Grid with Obstacles EliminationVideo
Solution46.8%Hard
Array, Breadth-First Search +1· 14 companies
1298. Maximum Candies You Can Get from BoxesVideo
Solution67.2%Hard
Array, Breadth-First Search +1· 4 companies
1301. Number of Paths with Max ScoreVideo
Solution63.4%Hard
Array, Dynamic Programming +1· 4 companies
1307. Verbal Arithmetic PuzzleVideo
Solution33.5%Hard
Array, Backtracking +2· 3 companies
1312. Minimum Insertion Steps to Make a String PalindromeVideo
Solution74.3%Hard
Dynamic Programming, String· 7 companies
1316. Distinct Echo SubstringsVideo
Solution53.7%Hard
Hash Function, Rolling Hash +2· 1 company
1320. Minimum Distance to Type a Word Using Two FingersVideo
Solution72.2%Hard
Dynamic Programming, String· 2 companies
1326. Minimum Number of Taps to Open to Water a GardenVideo
Solution50.7%Hard
Array, Dynamic Programming +1· 13 companies
1330. Reverse Subarray To Maximize Array ValueVideo
Solution44.7%Hard
Array, Greedy +1
1335. Minimum Difficulty of a Job ScheduleVideo
Solution59.6%Hard
Array, Dynamic Programming· 7 companies
1336. Number of Transactions per VisitVideoPremium
Solution47.7%Hard
Database· 2 companies
1340. Jump Game VVideo
Solution75.7%Hard
Array, Dynamic Programming +1· 2 companies
1345. Jump Game IVVideo
Solution50.9%Hard
Array, Breadth-First Search +1· 4 companies
1349. Maximum Students Taking ExamVideo
Solution54.8%Hard
Array, Bit Manipulation +3· 3 companies
1354. Construct Target Array With Multiple SumsVideo
Solution36.8%Hard
Array, Heap (Priority Queue)· 1 company
1359. Count All Valid Pickup and Delivery OptionsVideo
Solution64.9%Hard
Combinatorics, Dynamic Programming +1· 3 companies
1363. Largest Multiple of ThreeVideo
Solution33.2%Hard
Array, Dynamic Programming +1· 1 company
1368. Minimum Cost to Make at Least One Valid Path in a GridVideo
Solution70.9%Hard
Array, Breadth-First Search +4· 8 companies
1369. Get the Second Most Recent ActivityVideoPremium
Solution67.5%Hard
Database· 1 company
1373. Maximum Sum BST in Binary TreeVideo
Solution48.9%Hard
Binary Search Tree, Binary Tree +3· 5 companies
1377. Frog Position After T SecondsVideo
Solution38.8%Hard
Breadth-First Search, Depth-First Search +2· 2 companies
1383. Maximum Performance of a TeamVideo
Solution48.2%Hard
Array, Greedy +2· 7 companies
1384. Total Sales Amount by YearVideoPremium
Solution61.0%Hard
Database
1388. Pizza With 3n SlicesVideo
Solution54.4%Hard
Array, Dynamic Programming +2· 1 company
1392. Longest Happy PrefixVideo
Solution54.1%Hard
Hash Function, Rolling Hash +2· 6 companies
1397. Find All Good StringsVideo
Solution46.4%Hard
Dynamic Programming, String +1· 2 companies
1402. Reducing DishesVideo
Solution76.8%Hard
Array, Dynamic Programming +2· 3 companies
1406. Stone Game IIIVideo
Solution68.0%Hard
Array, Dynamic Programming +2· 2 companies
1411. Number of Ways to Paint N × 3 GridVideo
Solution80.6%Hard
Dynamic Programming· 8 companies
1412. Find the Quiet Students in All ExamsVideoPremium
Solution58.0%Hard
Database
1416. Restore The ArrayVideo
Solution47.2%Hard
Dynamic Programming, String· 2 companies
1420. Build Array Where You Can Find The Maximum Exactly K ComparisonsVideo
Solution65.3%Hard
Dynamic Programming, Prefix Sum· 2 companies
1425. Constrained Subsequence SumVideo
Solution56.5%Hard
Array, Dynamic Programming +4· 2 companies
1434. Number of Ways to Wear Different Hats to Each OtherVideo
Solution47.0%Hard
Array, Bit Manipulation +2· 3 companies
1439. Find the Kth Smallest Sum of a Matrix With Sorted RowsVideo
Solution62.6%Hard
Array, Binary Search +2· 2 companies
1444. Number of Ways of Cutting a PizzaVideo
Solution61.8%Hard
Array, Dynamic Programming +2· 1 company
1449. Form Largest Integer With Digits That Add up to TargetVideo
Solution50.2%Hard
Array, Dynamic Programming· 1 company
1453. Maximum Number of Darts Inside of a Circular DartboardVideo
Solution41.8%Hard
Array, Geometry +1· 1 company
1458. Max Dot Product of Two SubsequencesVideo
Solution69.4%Hard
Array, Dynamic Programming· 5 companies
Showing 251–300 of 942