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Problems

970 problems

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Array447String248Hash Table189Math173Database113Sorting100Simulation93Two Pointers70Counting69Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · With video · 970 results

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TitleSolutionAcceptDifficultyTopics
1221. Split a String in Balanced StringsVideo
Solution87.3%Easy
Counting, Greedy +1· 4 companies
1228. Missing Number In Arithmetic ProgressionVideoPremium
Solution52.0%Easy
Array, Math· 2 companies
1232. Check If It Is a Straight LineVideo
Solution40.1%Easy
Array, Geometry +1· 3 companies
1241. Number of Comments per PostVideoPremium
Solution65.5%Easy
Database· 1 company
1243. Array TransformationVideoPremium
Solution53.6%Easy
Array, Simulation· 1 company
1251. Average Selling PriceVideo
Solution38.0%Easy
Database· 6 companies
1252. Cells with Odd Values in a MatrixVideo
Solution79.7%Easy
Array, Math +1· 2 companies
1260. Shift 2D GridVideo
Solution74.3%Easy
Array, Matrix +1· 1 company
1266. Minimum Time Visiting All PointsVideo
Solution84.8%Easy
Array, Geometry +1· 6 companies
1271. HexspeakVideoPremium
Solution57.5%Easy
Math, String· 1 company
1275. Find Winner on a Tic Tac Toe GameVideo
Solution54.6%Easy
Array, Hash Table +2· 7 companies
1280. Students and ExaminationsVideo
Solution62.2%Easy
Database· 6 companies
1281. Subtract the Product and Sum of Digits of an IntegerVideo
Solution86.6%Easy
Math· 6 companies
1287. Element Appearing More Than 25% In Sorted ArrayVideo
Solution61.5%Easy
Array· 4 companies
1290. Convert Binary Number in a Linked List to IntegerVideo
Solution82.3%Easy
Linked List, Math· 10 companies
1294. Weather Type in Each CountryVideoPremium
Solution66.8%Easy
Database· 1 company
1295. Find Numbers with Even Number of DigitsVideo
Solution79.7%Easy
Array, Math· 7 companies
1299. Replace Elements with Greatest Element on Right SideVideo
Solution72.6%Easy
Array· 4 companies
1303. Find the Team SizeVideoPremium
Solution89.6%Easy
Database· 1 company
1304. Find N Unique Integers Sum up to ZeroVideo
Solution78.5%Easy
Array, Math· 6 companies
1309. Decrypt String from Alphabet to Integer MappingVideo
Solution80.6%Easy
String· 4 companies
1313. Decompress Run-Length Encoded ListVideo
Solution85.9%Easy
Array· 2 companies
1317. Convert Integer to the Sum of Two No-Zero IntegersVideo
Solution59.1%Easy
Math· 4 companies
1322. Ads PerformanceVideoPremium
Solution58.4%Easy
Database· 1 company
1323. Maximum 69 NumberVideo
Solution84.5%Easy
Greedy, Math· 7 companies
1327. List the Products Ordered in a PeriodVideo
Solution72.3%Easy
Database· 2 companies
1331. Rank Transform of an ArrayVideo
Solution73.9%Easy
Array, Hash Table +1· 7 companies
1332. Remove Palindromic SubsequencesVideo
Solution77.1%Easy
String, Two Pointers· 1 company
1337. The K Weakest Rows in a MatrixVideo
Solution74.3%Easy
Array, Binary Search +3· 5 companies
1342. Number of Steps to Reduce a Number to ZeroVideo
Solution86.0%Easy
Bit Manipulation, Math· 6 companies
1346. Check If N and Its Double ExistVideo
Solution41.7%Easy
Array, Binary Search +3· 5 companies
1350. Students With Invalid DepartmentsVideoPremium
Solution89.8%Easy
Database· 1 company
1351. Count Negative Numbers in a Sorted MatrixVideo
Solution79.6%Easy
Array, Binary Search +1· 6 companies
1356. Sort Integers by The Number of 1 BitsVideo
Solution82.3%Easy
Array, Bit Manipulation +2· 4 companies
1360. Number of Days Between Two DatesVideo
Solution53.7%Easy
Math, String· 4 companies
1365. How Many Numbers Are Smaller Than the Current NumberVideo
Solution87.0%Easy
Array, Counting +2· 6 companies
1370. Increasing Decreasing StringVideo
Solution77.3%Easy
Counting, Hash Table +1· 3 companies
1374. Generate a String With Characters That Have Odd CountsVideo
Solution78.7%Easy
String· 1 company
1378. Replace Employee ID With The Unique IdentifierVideo
Solution83.6%Easy
Database· 9 companies
1379. Find a Corresponding Node of a Binary Tree in a Clone of That TreeVideo
Solution85.9%Easy
Binary Tree, Breadth-First Search +2· 1 company
1380. Lucky Numbers in a MatrixVideo
Solution79.9%Easy
Array, Matrix· 3 companies
1385. Find the Distance Value Between Two ArraysVideo
Solution72.1%Easy
Array, Binary Search +2· 5 companies
1389. Create Target Array in the Given OrderVideo
Solution86.6%Easy
Array, Simulation· 5 companies
1394. Find Lucky Integer in an ArrayVideo
Solution75.5%Easy
Array, Counting +1· 6 companies
1399. Count Largest GroupVideo
Solution74.7%Easy
Hash Table, Math· 5 companies
1403. Minimum Subsequence in Non-Increasing OrderVideo
Solution73.7%Easy
Array, Greedy +1· 2 companies
1407. Top TravellersVideo
Solution58.0%Easy
Database· 2 companies
1408. String Matching in an ArrayVideo
Solution69.8%Easy
Array, String +1· 5 companies
1413. Minimum Value to Get Positive Step by Step SumVideo
Solution65.1%Easy
Array, Prefix Sum· 9 companies
1417. Reformat The StringVideo
Solution52.3%Easy
String· 1 company
Showing 301–350 of 970