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Problems

797 problems

Has videoPremium onlyReset
Array2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

797 results

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TitleSolutionAcceptDifficultyTopics
1296. Divide Array in Sets of K Consecutive NumbersVideo
Solution59.2%Medium
Array, Greedy +2· 2 companies
1297. Maximum Number of Occurrences of a SubstringVideo
Solution54.9%Medium
Hash Table, Sliding Window +1· 7 companies
1311. Get Watched Videos by Your FriendsVideo
Solution54.2%Medium
Array, Breadth-First Search +3· 3 companies
1331. Rank Transform of an ArrayVideo
Solution73.9%Easy
Array, Hash Table +1· 7 companies
1338. Reduce Array Size to The HalfVideo
Solution69.5%Medium
Array, Greedy +3· 1 company
1345. Jump Game IVVideo
Solution50.9%Hard
Array, Breadth-First Search +1· 4 companies
1346. Check If N and Its Double ExistVideo
Solution41.7%Easy
Array, Binary Search +3· 5 companies
1347. Minimum Number of Steps to Make Two Strings AnagramVideo
Solution82.6%Medium
Counting, Hash Table +1· 10 companies
1348. Tweet Counts Per FrequencyVideo
Solution46.6%Medium
Binary Search, Design +3· 4 companies
1357. Apply Discount Every n OrdersVideo
Solution66.1%Medium
Array, Design +1· 1 company
1358. Number of Substrings Containing All Three CharactersVideo
Solution74.4%Medium
Hash Table, Sliding Window +1· 6 companies
1365. How Many Numbers Are Smaller Than the Current NumberVideo
Solution87.0%Easy
Array, Counting +2· 6 companies
1366. Rank Teams by VotesVideo
Solution60.1%Medium
Array, Counting +3· 7 companies
1370. Increasing Decreasing StringVideo
Solution77.3%Easy
Counting, Hash Table +1· 3 companies
1371. Find the Longest Substring Containing Vowels in Even CountsVideo
Solution75.7%Medium
Bit Manipulation, Hash Table +2· 6 companies
1386. Cinema Seat AllocationVideo
Solution56.8%Medium
Array, Bit Manipulation +2· 5 companies
1394. Find Lucky Integer in an ArrayVideo
Solution75.5%Easy
Array, Counting +1· 6 companies
1396. Design Underground SystemVideo
Solution74.8%Medium
Design, Hash Table +1· 7 companies
1399. Count Largest GroupVideo
Solution74.7%Easy
Hash Table, Math· 5 companies
1400. Construct K Palindrome StringsVideo
Solution68.6%Medium
Counting, Greedy +2· 6 companies
1410. HTML Entity ParserVideo
Solution50.0%Medium
Hash Table, String· 3 companies
1418. Display Table of Food Orders in a RestaurantVideo
Solution76.5%Medium
Array, Hash Table +3· 2 companies
1426. Counting ElementsVideoPremium
Solution60.9%Easy
Array, Hash Table· 1 company
1429. First Unique NumberVideoPremium
Solution57.8%Medium
Array, Data Stream +3· 5 companies
1436. Destination CityVideo
Solution79.5%Easy
Array, Hash Table +1· 4 companies
1442. Count Triplets That Can Form Two Arrays of Equal XORVideo
Solution84.9%Medium
Array, Bit Manipulation +3· 2 companies
1443. Minimum Time to Collect All Apples in a TreeVideo
Solution63.6%Medium
Breadth-First Search, Depth-First Search +2· 4 companies
1452. People Whose List of Favorite Companies Is Not a Subset of Another ListVideo
Solution60.6%Medium
Array, Hash Table +1· 2 companies
1460. Make Two Arrays Equal by Reversing SubarraysVideo
Solution75.9%Easy
Array, Hash Table +1· 4 companies
1461. Check If a String Contains All Binary Codes of Size KVideo
Solution61.5%Medium
Bit Manipulation, Hash Function +3· 5 companies
1477. Find Two Non-overlapping Sub-arrays Each With Target SumVideo
Solution49.5%Medium
Array, Binary Search +3· 1 company
1481. Least Number of Unique Integers after K RemovalsVideo
Solution63.8%Medium
Array, Counting +3· 7 companies
1485. Clone Binary Tree With Random PointerVideoPremium
Solution81.2%Medium
Binary Tree, Breadth-First Search +3· 2 companies
1487. Making File Names UniqueVideo
Solution38.5%Medium
Array, Hash Table +1· 1 company
1488. Avoid Flood in The CityVideo
Solution39.0%Medium
Array, Binary Search +3· 6 companies
1490. Clone N-ary TreeVideoPremium
Solution83.2%Medium
Breadth-First Search, Depth-First Search +2· 1 company
1496. Path CrossingVideo
Solution62.5%Easy
Hash Table, String· 3 companies
1497. Check If Array Pairs Are Divisible by kVideo
Solution46.2%Medium
Array, Counting +1· 8 companies
1500. Design a File Sharing SystemVideoPremium
Solution41.7%Medium
Data Stream, Design +3· 1 company
1506. Find Root of N-Ary TreeVideoPremium
Solution78.4%Medium
Bit Manipulation, Depth-First Search +2· 3 companies
1512. Number of Good PairsVideo
Solution89.9%Easy
Array, Counting +2· 10 companies
1519. Number of Nodes in the Sub-Tree With the Same LabelVideo
Solution55.5%Medium
Breadth-First Search, Counting +3· 2 companies
1525. Number of Good Ways to Split a StringVideo
Solution68.2%Medium
Bit Manipulation, Dynamic Programming +2· 2 companies
1540. Can Convert String in K MovesVideo
Solution37.6%Medium
Hash Table, String· 1 company
1542. Find Longest Awesome SubstringVideo
Solution47.4%Hard
Bit Manipulation, Hash Table +1· 1 company
1546. Maximum Number of Non-Overlapping Subarrays With Sum Equals TargetVideo
Solution49.4%Medium
Array, Greedy +2· 1 company
1554. Strings Differ by One CharacterVideoPremium
Solution39.4%Medium
Hash Function, Hash Table +2· 1 company
1562. Find Latest Group of Size MVideo
Solution43.8%Medium
Array, Binary Search +2· 1 company
1570. Dot Product of Two Sparse VectorsVideoPremium
Solution89.9%Medium
Array, Design +2· 12 companies
1577. Number of Ways Where Square of Number Is Equal to Product of Two NumbersVideo
Solution43.9%Medium
Array, Hash Table +2
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