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Problems

703 problems

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Array274Database207String109Hash Table105Depth-First Search75Math70Dynamic Programming69Sorting61Tree60Breadth-First Search51Binary Tree47Greedy47Binary Search46Matrix38Two Pointers37All topics

With video · Premium · 703 results

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TitleSolutionAcceptDifficultyTopics
1308. Running Total for Different GendersVideoPremium
Solution86.3%Medium
Database
1322. Ads PerformanceVideoPremium
Solution58.4%Easy
Database· 1 company
1336. Number of Transactions per VisitVideoPremium
Solution47.7%Hard
Database· 2 companies
1350. Students With Invalid DepartmentsVideoPremium
Solution89.8%Easy
Database· 1 company
1355. Activity ParticipantsVideoPremium
Solution72.3%Medium
Database· 1 company
1364. Number of Trusted Contacts of a CustomerVideoPremium
Solution74.9%Medium
Database· 1 company
1369. Get the Second Most Recent ActivityVideoPremium
Solution67.5%Hard
Database· 1 company
1384. Total Sales Amount by YearVideoPremium
Solution61.0%Hard
Database
1398. Customers Who Bought Products A and B but Not CVideoPremium
Solution71.2%Medium
Database· 1 company
1412. Find the Quiet Students in All ExamsVideoPremium
Solution58.0%Hard
Database
1421. NPV QueriesVideoPremium
Solution82.8%Easy
Database· 1 company
1426. Counting ElementsVideoPremium
Solution60.9%Easy
Array, Hash Table· 1 company
1427. Perform String ShiftsVideoPremium
Solution56.0%Easy
Array, Math +1· 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
1435. Create a Session Bar ChartVideoPremium
Solution74.3%Easy
Database· 1 company
1440. Evaluate Boolean ExpressionVideoPremium
Solution71.6%Medium
Database· 1 company
1445. Apples & OrangesVideoPremium
Solution86.0%Medium
Database· 1 company
1454. Active UsersVideoPremium
Solution36.7%Medium
Database· 1 company
1459. Rectangles AreaVideoPremium
Solution68.5%Medium
Database· 1 company
1468. Calculate SalariesVideoPremium
Solution77.2%Medium
Database
1469. Find All The Lonely NodesVideoPremium
Solution83.8%Easy
Binary Tree, Breadth-First Search +2· 1 company
1474. Delete N Nodes After M Nodes of a Linked ListVideoPremium
Solution74.4%Easy
Linked List· 1 company
1479. Sales by Day of the WeekVideoPremium
Solution76.1%Hard
Database· 1 company
1485. Clone Binary Tree With Random PointerVideoPremium
Solution81.2%Medium
Binary Tree, Breadth-First Search +3· 2 companies
1490. Clone N-ary TreeVideoPremium
Solution83.2%Medium
Breadth-First Search, Depth-First Search +2· 1 company
1495. Friendly Movies Streamed Last MonthVideoPremium
Solution49.0%Easy
Database· 1 company
1500. Design a File Sharing SystemVideoPremium
Solution41.7%Medium
Data Stream, Design +3· 1 company
1501. Countries You Can Safely Invest InVideoPremium
Solution50.9%Medium
Database
1506. Find Root of N-Ary TreeVideoPremium
Solution78.4%Medium
Bit Manipulation, Depth-First Search +2· 3 companies
1511. Customer Order FrequencyVideoPremium
Solution66.2%Easy
Database· 1 company
1516. Move Sub-Tree of N-Ary TreeVideoPremium
–59.7%Hard
Depth-First Search, Tree· 1 company
1522. Diameter of N-Ary TreeVideoPremium
Solution75.4%Medium
Depth-First Search, Tree· 3 companies
1532. The Most Recent Three OrdersVideoPremium
Solution69.3%Medium
Database
1533. Find the Index of the Large IntegerVideoPremium
Solution56.7%Medium
Array, Binary Search +1· 1 company
1538. Guess the Majority in a Hidden ArrayVideoPremium
Solution68.8%Medium
Array, Interactive +1· 1 company
1543. Fix Product Name FormatVideoPremium
Solution59.1%Easy
Database
1548. The Most Similar Path in a GraphVideoPremium
Solution59.2%Hard
Dynamic Programming, Graph· 1 company
1549. The Most Recent Orders for Each ProductVideoPremium
Solution64.9%Medium
Database· 1 company
1554. Strings Differ by One CharacterVideoPremium
Solution39.4%Medium
Hash Function, Hash Table +2· 1 company
1555. Bank Account SummaryVideoPremium
Solution52.4%Medium
Database· 1 company
1564. Put Boxes Into the Warehouse IVideoPremium
Solution67.9%Medium
Array, Greedy +1· 3 companies
1565. Unique Orders and Customers Per MonthVideoPremium
Solution82.1%Easy
Database
1570. Dot Product of Two Sparse VectorsVideoPremium
Solution89.9%Medium
Array, Design +2· 12 companies
1571. Warehouse ManagerVideoPremium
Solution87.5%Easy
Database· 1 company
1580. Put Boxes Into the Warehouse IIVideoPremium
Solution66.6%Medium
Array, Greedy +1· 2 companies
1586. Binary Search Tree Iterator IIVideoPremium
Solution63.4%Medium
Binary Search Tree, Binary Tree +4· 1 company
1596. The Most Frequently Ordered Products for Each CustomerVideoPremium
Solution77.7%Medium
Database· 1 company
1597. Build Binary Expression Tree From Infix ExpressionVideoPremium
–62.5%Hard
Binary Tree, Stack +2· 1 company
Showing 251–300 of 703