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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
1463. Cherry Pickup IIVideo
Solution72.4%Hard
Array, Dynamic Programming +1· 7 companies
1467. Probability of a Two Boxes Having The Same Number of Distinct BallsVideo
Solution61.7%Hard
Array, Backtracking +4
1473. Paint House IIIVideo
Solution60.9%Hard
Array, Dynamic Programming· 3 companies
1478. Allocate MailboxesVideo
Solution57.1%Hard
Array, Dynamic Programming +2· 4 companies
1479. Sales by Day of the WeekVideoPremium
Solution76.1%Hard
Database· 1 company
1483. Kth Ancestor of a Tree NodeVideo
Solution39.7%Hard
Binary Search, Breadth-First Search +4· 3 companies
1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning TreeVideo
Solution66.4%Hard
Graph, Minimum Spanning Tree +3· 4 companies
1494. Parallel Courses IIVideo
Solution31.3%Hard
Bit Manipulation, Bitmask +2· 3 companies
1499. Max Value of EquationVideo
Solution45.0%Hard
Array, Heap (Priority Queue) +3· 1 company
1505. Minimum Possible Integer After at Most K Adjacent Swaps On DigitsVideo
Solution41.8%Hard
Binary Indexed Tree, Greedy +2· 1 company
1510. Stone Game IVVideo
Solution65.2%Hard
Dynamic Programming, Game Theory +1· 1 company
1515. Best Position for a Service CentreVideo
Solution35.8%Hard
Array, Geometry +2· 1 company
1516. Move Sub-Tree of N-Ary TreeVideoPremium
–59.7%Hard
Depth-First Search, Tree· 1 company
1520. Maximum Number of Non-Overlapping SubstringsVideo
Solution65.0%Hard
Greedy, String· 1 company
1521. Find a Value of a Mysterious Function Closest to TargetVideo
Solution48.3%Hard
Array, Binary Search +2· 1 company
1526. Minimum Number of Increments on Subarrays to Form a Target ArrayVideo
Solution78.2%Hard
Array, Dynamic Programming +3· 7 companies
1531. String Compression IIVideo
Solution52.2%Hard
Dynamic Programming, String· 5 companies
1537. Get the Maximum ScoreVideo
Solution41.5%Hard
Array, Dynamic Programming +2· 5 companies
1542. Find Longest Awesome SubstringVideo
Solution47.4%Hard
Bit Manipulation, Hash Table +1· 1 company
1547. Minimum Cost to Cut a StickVideo
Solution63.5%Hard
Array, Dynamic Programming +1· 8 companies
1548. The Most Similar Path in a GraphVideoPremium
Solution59.2%Hard
Dynamic Programming, Graph· 1 company
1553. Minimum Number of Days to Eat N OrangesVideo
Solution36.2%Hard
Dynamic Programming, Memoization· 1 company
1563. Stone Game VVideo
Solution58.8%Hard
Array, Dynamic Programming +2· 1 company
1568. Minimum Number of Days to Disconnect IslandVideo
Solution58.8%Hard
Array, Breadth-First Search +3· 4 companies
1569. Number of Ways to Reorder Array to Get Same BSTVideo
Solution65.8%Hard
Array, Binary Search Tree +8· 2 companies
1575. Count All Possible RoutesVideo
Solution65.1%Hard
Array, Dynamic Programming +1
1579. Remove Max Number of Edges to Keep Graph Fully TraversableVideo
Solution70.1%Hard
Graph, Union Find· 4 companies
1585. Check If String Is Transformable With Substring Sort OperationsVideo
Solution51.9%Hard
Greedy, Sorting +1· 1 company
1591. Strange Printer IIVideo
Solution61.4%Hard
Array, Graph +2· 1 company
1595. Minimum Cost to Connect Two Groups of PointsVideo
Solution50.9%Hard
Array, Bit Manipulation +3· 1 company
1597. Build Binary Expression Tree From Infix ExpressionVideoPremium
–62.5%Hard
Binary Tree, Stack +2· 1 company
1601. Maximum Number of Achievable Transfer RequestsVideo
Solution64.5%Hard
Array, Backtracking +2· 1 company
1606. Find Servers That Handled Most Number of RequestsVideo
Solution45.9%Hard
Array, Greedy +2· 6 companies
1610. Maximum Number of Visible PointsVideo
Solution38.1%Hard
Array, Geometry +3· 6 companies
1611. Minimum One Bit Operations to Make Integers ZeroVideo
Solution78.5%Hard
Bit Manipulation, Dynamic Programming +1· 5 companies
1617. Count Subtrees With Max Distance Between CitiesVideo
Solution67.4%Hard
Bit Manipulation, Bitmask +3
1622. Fancy SequenceVideo
Solution41.3%Hard
Design, Math +1· 3 companies
1627. Graph Connectivity With ThresholdVideo
Solution49.9%Hard
Array, Math +2· 1 company
1632. Rank Transform of a MatrixVideo
Solution42.7%Hard
Array, Graph +4· 3 companies
1635. Hopper Company Queries IVideoPremium
Solution47.7%Hard
Database· 1 company
1639. Number of Ways to Form a Target String Given a DictionaryVideo
Solution56.6%Hard
Array, Dynamic Programming +1· 9 companies
1643. Kth Smallest InstructionsVideo
Solution44.7%Hard
Array, Combinatorics +2· 1 company
1645. Hopper Company Queries IIVideoPremium
Solution39.9%Hard
Database· 1 company
1649. Create Sorted Array through InstructionsVideo
Solution42.7%Hard
Array, Binary Indexed Tree +5· 2 companies
1651. Hopper Company Queries IIIVideoPremium
Solution65.6%Hard
Database· 1 company
1655. Distribute Repeating IntegersVideo
Solution41.1%Hard
Array, Backtracking +3· 1 company
1659. Maximize Grid HappinessVideo
Solution41.6%Hard
Bit Manipulation, Bitmask +2· 1 company
1665. Minimum Initial Energy to Finish TasksVideo
Solution76.5%Hard
Array, Greedy +1· 5 companies
1671. Minimum Number of Removals to Make Mountain ArrayVideo
Solution55.0%Hard
Array, Binary Search +2· 6 companies
1675. Minimize Deviation in ArrayVideo
Solution54.0%Hard
Array, Greedy +2· 1 company
Showing 301–350 of 942