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100 problems

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Array447 String248 Hash Table189 Math173 Database113 Sorting100 Simulation93 Two Pointers70 Counting69 Bit Manipulation54 Greedy51 Matrix41 Tree40 Depth-First Search39 Binary Tree37 All topics

Easy · With video · 100 results

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TitleSolutionAcceptDifficultyTopics

88. Merge Sorted ArrayVideo

Solution55.7%Easy

Array, Sorting +1· 37 companies

169. Majority ElementVideo

Solution66.2%Easy

Array, Counting +3· 22 companies

217. Contains DuplicateVideo

Solution64.8%Easy

Array, Hash Table +1· 20 companies

242. Valid AnagramVideo

Solution68.5%Easy

Hash Table, Sorting +1· 40 companies

252. Meeting RoomsVideoPremium

Solution59.4%Easy

Array, Sorting· 10 companies

268. Missing NumberVideo

Solution72.4%Easy

Array, Binary Search +4· 19 companies

349. Intersection of Two ArraysVideo

Solution78.2%Easy

Array, Binary Search +3· 16 companies

350. Intersection of Two Arrays IIVideo

Solution60.4%Easy

Array, Binary Search +3· 9 companies

389. Find the DifferenceVideo

Solution60.8%Easy

Bit Manipulation, Hash Table +2· 6 companies

414. Third Maximum NumberVideo

Solution40.3%Easy

Array, Sorting· 9 companies

455. Assign CookiesVideo

Solution55.4%Easy

Array, Greedy +2· 9 companies

506. Relative RanksVideo

Solution75.1%Easy

Array, Heap (Priority Queue) +1· 4 companies

561. Array PartitionVideo

Solution82.2%Easy

Array, Counting Sort +2· 5 companies

594. Longest Harmonious SubsequenceVideo

Solution65.1%Easy

Array, Counting +3· 7 companies

628. Maximum Product of Three NumbersVideo

Solution48.0%Easy

Array, Math +1· 15 companies

645. Set MismatchVideo

Solution43.4%Easy

Array, Bit Manipulation +2· 7 companies

747. Largest Number At Least Twice of OthersVideo

Solution53.4%Easy

Array, Sorting· 4 companies

888. Fair Candy SwapVideo

Solution65.9%Easy

Array, Binary Search +2· 6 companies

905. Sort Array By ParityVideo

Solution76.2%Easy

Array, Sorting +1· 8 companies

922. Sort Array By Parity IIVideo

Solution71.4%Easy

Array, Sorting +1· 6 companies

976. Largest Perimeter TriangleVideo

Solution62.1%Easy

Array, Greedy +2· 5 companies

977. Squares of a Sorted ArrayVideo

Solution73.7%Easy

Array, Sorting +1· 17 companies

1005. Maximize Sum Of Array After K NegationsVideo

Solution54.3%Easy

Array, Greedy +1· 4 companies

1030. Matrix Cells in Distance OrderVideo

Solution74.6%Easy

Array, Geometry +3· 1 company

1051. Height CheckerVideo

Solution81.6%Easy

Array, Counting Sort +1· 6 companies

1065. Index Pairs of a StringVideoPremium

Solution68.6%Easy

Array, Sorting +2· 1 company

1086. High FiveVideoPremium

Solution74.5%Easy

Array, Hash Table +2· 2 companies

1099. Two Sum Less Than KVideoPremium

Solution61.9%Easy

Array, Binary Search +2· 1 company

1122. Relative Sort ArrayVideo

Solution75.4%Easy

Array, Counting Sort +2· 6 companies

1133. Largest Unique NumberVideoPremium

Solution71.3%Easy

Array, Hash Table +1· 1 company

1196. How Many Apples Can You Put into the BasketVideoPremium

Solution67.0%Easy

Array, Greedy +1· 1 company

1200. Minimum Absolute DifferenceVideo

Solution75.1%Easy

Array, Sorting· 16 companies

1331. Rank Transform of an ArrayVideo

Solution73.9%Easy

Array, Hash Table +1· 7 companies

1337. The K Weakest Rows in a MatrixVideo

Solution74.3%Easy

Array, Binary Search +3· 5 companies

1346. Check If N and Its Double ExistVideo

Solution41.7%Easy

Array, Binary Search +3· 5 companies

1356. Sort Integers by The Number of 1 BitsVideo

Solution82.3%Easy

Array, Bit Manipulation +2· 4 companies

1365. How Many Numbers Are Smaller Than the Current NumberVideo

Solution87.0%Easy

Array, Counting +2· 6 companies

1385. Find the Distance Value Between Two ArraysVideo

Solution72.1%Easy

Array, Binary Search +2· 5 companies

1403. Minimum Subsequence in Non-Increasing OrderVideo

Solution73.7%Easy

Array, Greedy +1· 2 companies

1460. Make Two Arrays Equal by Reversing SubarraysVideo

Solution75.9%Easy

Array, Hash Table +1· 4 companies

1464. Maximum Product of Two Elements in an ArrayVideo

Solution84.7%Easy

Array, Heap (Priority Queue) +1· 7 companies

1491. Average Salary Excluding the Minimum and Maximum SalaryVideo

Solution63.5%Easy

Array, Sorting· 1 company

1502. Can Make Arithmetic Progression From SequenceVideo

Solution68.9%Easy

Array, Sorting· 5 companies

1608. Special Array With X Elements Greater Than or Equal XVideo

Solution66.8%Easy

Array, Binary Search +1· 4 companies

1619. Mean of Array After Removing Some ElementsVideo

Solution72.2%Easy

Array, Sorting· 1 company

1636. Sort Array by Increasing FrequencyVideo

Solution80.8%Easy

Array, Hash Table +1· 10 companies

1637. Widest Vertical Area Between Two Points Containing No PointsVideo

Solution87.3%Easy

Array, Sorting· 4 companies

1710. Maximum Units on a TruckVideo

Solution75.3%Easy

Array, Greedy +1· 9 companies

1859. Sorting the SentenceVideo

Solution84.1%Easy

Sorting, String· 3 companies

1913. Maximum Product Difference Between Two PairsVideo

Solution82.9%Easy

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