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Problems

2,133 problems

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Array1,212Hash Table473String437Math331Greedy330Dynamic Programming327Sorting302Depth-First Search208Binary Search189Breadth-First Search166Matrix163Tree158Prefix Sum155Two Pointers150Database137All topics

Medium · 2,133 results

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TitleSolutionAcceptDifficultyTopics
2340. Minimum Adjacent Swaps to Make a Valid ArrayVideoPremium
Solution72.6%Medium
Array, Greedy· 1 company
2342. Max Sum of a Pair With Equal Sum of DigitsVideo
Solution66.0%Medium
Array, Hash Table +2· 6 companies
2343. Query Kth Smallest Trimmed NumberVideo
Solution47.9%Medium
Array, Divide and Conquer +5· 1 company
2345. Finding the Number of Visible MountainsVideoPremium
Solution37.3%Medium
Array, Monotonic Stack +2· 2 companies
2346. Compute the Rank as a PercentageVideoPremium
Solution33.7%Medium
Database
2348. Number of Zero-Filled SubarraysVideo
Solution70.1%Medium
Array, Math· 4 companies
2349. Design a Number Container SystemVideo
Solution57.1%Medium
Design, Hash Table +2· 1 company
2352. Equal Row and Column PairsVideo
Solution70.9%Medium
Array, Hash Table +2· 6 companies
2353. Design a Food Rating SystemVideo
Solution52.9%Medium
Design, Hash Table +2· 4 companies
2358. Maximum Number of Groups Entering a CompetitionVideo
Solution68.5%Medium
Array, Binary Search +2
2359. Find Closest Node to Given Two NodesVideo
Solution53.0%Medium
Depth-First Search, Graph· 4 companies
2364. Count Number of Bad PairsVideo
Solution54.2%Medium
Array, Counting +2· 4 companies
2365. Task Scheduler IIVideo
Solution54.7%Medium
Array, Hash Table +1· 6 companies
2368. Reachable Nodes With RestrictionsVideo
Solution60.8%Medium
Array, Breadth-First Search +5· 2 companies
2369. Check if There is a Valid Partition For The ArrayVideo
Solution52.5%Medium
Array, Dynamic Programming· 1 company
2370. Longest Ideal SubsequenceVideo
Solution47.1%Medium
Dynamic Programming, Hash Table +1· 2 companies
2372. Calculate the Influence of Each SalespersonVideoPremium
Solution83.8%Medium
Database
2374. Node With Highest Edge ScoreVideo
Solution49.3%Medium
Graph, Hash Table· 1 company
2375. Construct Smallest Number From DI StringVideo
Solution85.6%Medium
Backtracking, Greedy +2· 3 companies
2378. Choose Edges to Maximize Score in a TreeVideoPremium
Solution57.1%Medium
Depth-First Search, Dynamic Programming +1· 1 company
2380. Time Needed to Rearrange a Binary StringVideo
Solution53.3%Medium
Dynamic Programming, Simulation +1· 5 companies
2381. Shifting Letters IIVideo
Solution53.6%Medium
Array, Prefix Sum +1· 5 companies
2384. Largest Palindromic NumberVideo
Solution37.1%Medium
Counting, Greedy +2· 3 companies
2385. Amount of Time for Binary Tree to Be InfectedVideo
Solution65.8%Medium
Binary Tree, Breadth-First Search +3· 12 companies
2387. Median of a Row Wise Sorted MatrixVideoPremium
Solution70.9%Medium
Array, Binary Search +1· 1 company
2388. Change Null Values in a Table to the Previous ValueVideoPremium
Solution51.6%Medium
Database· 1 company
2390. Removing Stars From a StringVideo
Solution79.7%Medium
Simulation, Stack +1· 4 companies
2391. Minimum Amount of Time to Collect GarbageVideo
Solution85.2%Medium
Array, Prefix Sum +1· 2 companies
2393. Count Strictly Increasing SubarraysVideoPremium
Solution70.8%Medium
Array, Dynamic Programming +1· 1 company
2394. Employees With DeductionsVideoPremium
Solution43.0%Medium
Database· 1 company
2396. Strictly Palindromic NumberVideo
Solution90.3%Medium
Brainteaser, Math +1· 2 companies
2397. Maximum Rows Covered by ColumnsVideo
Solution58.4%Medium
Array, Backtracking +3· 1 company
2400. Number of Ways to Reach a Position After Exactly k StepsVideo
Solution37.4%Medium
Combinatorics, Dynamic Programming +1· 1 company
2401. Longest Nice SubarrayVideo
Solution64.8%Medium
Array, Bit Manipulation +1· 6 companies
2405. Optimal Partition of StringVideo
Solution78.0%Medium
Greedy, Hash Table +1· 4 companies
2406. Divide Intervals Into Minimum Number of GroupsVideo
Solution63.7%Medium
Array, Greedy +4· 7 companies
2408. Design SQLVideoPremium
Solution63.9%Medium
Array, Design +2· 2 companies
2410. Maximum Matching of Players With TrainersVideo
Solution75.2%Medium
Array, Greedy +2· 3 companies
2411. Smallest Subarrays With Maximum Bitwise ORVideo
Solution62.0%Medium
Array, Binary Search +2· 5 companies
2414. Length of the Longest Alphabetical Continuous SubstringVideo
Solution61.0%Medium
String· 3 companies
2415. Reverse Odd Levels of Binary TreeVideo
Solution86.7%Medium
Binary Tree, Breadth-First Search +2· 3 companies
2417. Closest Fair IntegerVideoPremium
Solution43.7%Medium
Enumeration, Math
2419. Longest Subarray With Maximum Bitwise ANDVideo
Solution65.4%Medium
Array, Bit Manipulation +1· 6 companies
2420. Find All Good IndicesVideo
Solution41.4%Medium
Array, Dynamic Programming +1· 1 company
2422. Merge Operations to Turn Array Into a PalindromeVideoPremium
Solution69.0%Medium
Array, Greedy +1· 5 companies
2424. Longest Uploaded PrefixVideo
Solution55.5%Medium
Binary Indexed Tree, Binary Search +5· 1 company
2425. Bitwise XOR of All PairingsVideo
Solution66.9%Medium
Array, Bit Manipulation +1· 3 companies
2428. Maximum Sum of an HourglassVideo
Solution77.1%Medium
Array, Matrix +1· 1 company
2429. Minimize XORVideo
Solution62.4%Medium
Bit Manipulation, Greedy· 6 companies
2431. Maximize Total Tastiness of Purchased FruitsVideoPremium
Solution64.6%Medium
Array, Dynamic Programming· 1 company
Showing 1,251–1,300 of 2,133