Problems

3,947+ problems · 946 Easy · 2062 Medium · 939 Hard

Active:Easy· 946 results

Title	Solution	Practice	Difficulty	Companies	Topics
1228. Missing Number In Arithmetic Progression	Solution	Solve	Easy	Audible	Array Math
1232. Check If It Is a Straight Line	Solution	Solve	Easy	Amazon+2	Array Geometry+1
1241. Number of Comments per Post	Solution	Solve	Easy	Meta	Database
1243. Array Transformation	Solution	Solve	Easy	Virtu Financial	Array Simulation
1251. Average Selling Price	Solution	Solve	Easy	Amazon+7	Database
1252. Cells with Odd Values in a Matrix	Solution	Solve	Easy	Google+1	Array Math+1
1260. Shift 2D Grid	Solution	Solve	Easy	Amazon	Array Matrix+1
1266. Minimum Time Visiting All Points	Solution	Solve	Easy	Amazon+5	Array Geometry+1
1271. Hexspeak	Solution	Solve	Easy	Virtu Financial	Math String
1275. Find Winner on a Tic Tac Toe Game	Solution	Solve	Easy	Amazon+6	Array Hash Table+2
1279. Traffic Light Controlled Intersection	Solution	Solve	Easy	Amazon	Concurrency
1280. Students and Examinations	Solution	Solve	Easy	Accenture+7	Database
1281. Subtract the Product and Sum of Digits of an Integer	Solution	Solve	Easy	Bloomberg+4	Math
1287. Element Appearing More Than 25% In Sorted Array	Solution	Solve	Easy	Amazon+4	Array
1290. Convert Binary Number in a Linked List to Integer	Solution	Solve	Easy	Amazon+9	Linked List Math
1294. Weather Type in Each Country	Solution	Solve	Easy	Point72	Database
1295. Find Numbers with Even Number of Digits	Solution	Solve	Easy	Amazon+6	Array Math
1299. Replace Elements with Greatest Element on Right Side	Solution	Solve	Easy	Amazon+3	Array
1303. Find the Team Size	Solution	Solve	Easy	Amazon	Database
1304. Find N Unique Integers Sum up to Zero	Solution	Solve	Easy	Amazon+5	Array Math
1309. Decrypt String from Alphabet to Integer Mapping	Solution	Solve	Easy	Bloomberg+3	String
1313. Decompress Run-Length Encoded List	Solution	Solve	Easy	Amazon+1	Array
1317. Convert Integer to the Sum of Two No-Zero Integers	Solution	Solve	Easy	Amazon+3	Math
1322. Ads Performance	Solution	Solve	Easy	Meta	Database
1323. Maximum 69 Number	Solution	Solve	Easy	Amazon+6	Greedy Math
1327. List the Products Ordered in a Period	Solution	Solve	Easy	Amazon+1	Database
1331. Rank Transform of an Array	Solution	Solve	Easy	Agoda+5	Array Hash Table+1
1332. Remove Palindromic Subsequences	Solution	Solve	Easy	Amazon	String Two Pointers
1337. The K Weakest Rows in a Matrix	Solution	Solve	Easy	Amazon+3	Array Binary Search+3
1342. Number of Steps to Reduce a Number to Zero	Solution	Solve	Easy	Amazon+4	Bit Manipulation Math
1346. Check If N and Its Double Exist	Solution	Solve	Easy	Amazon+4	Array Binary Search+3
1350. Students With Invalid Departments	Solution	Solve	Easy	Amazon	Database
1351. Count Negative Numbers in a Sorted Matrix	Solution	Solve	Easy	Amazon+4	Array Binary Search+1
1356. Sort Integers by The Number of 1 Bits	Solution	Solve	Easy	Amazon+2	Array Bit Manipulation+2
1360. Number of Days Between Two Dates	Solution	Solve	Easy	Amazon+4	Math String
1365. How Many Numbers Are Smaller Than the Current Number	Solution	Solve	Easy	Amazon+5	Array Counting+2
1370. Increasing Decreasing String	Solution	Solve	Easy	Akuna Capital+2	Counting Hash Table+1
1374. Generate a String With Characters That Have Odd Counts	Solution	Solve	Easy	Google	String
1378. Replace Employee ID With The Unique Identifier	Solution	Solve	Easy	Amazon+9	Database
1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree	Solution	Solve	Easy	Amazon+1	Binary Tree Breadth-First Search+2
1380. Lucky Numbers in a Matrix	Solution	Solve	Easy	Amazon+3	Array Matrix
1385. Find the Distance Value Between Two Arrays	Solution	Solve	Easy	Amazon+5	Array Binary Search+2
1389. Create Target Array in the Given Order	Solution	Solve	Easy	Amazon+4	Array Simulation
1394. Find Lucky Integer in an Array	Solution	Solve	Easy	Amazon+5	Array Counting+1
1399. Count Largest Group	Solution	Solve	Easy	Amazon+4	Hash Table Math
1403. Minimum Subsequence in Non-Increasing Order	Solution	Solve	Easy	Amazon+1	Array Greedy+1
1407. Top Travellers	Solution	Solve	Easy	Google+1	Database
1408. String Matching in an Array	Solution	Solve	Easy	Amazon+4	Array String+1
1413. Minimum Value to Get Positive Step by Step Sum	Solution	Solve	Easy	Amazon+7	Array Prefix Sum
1417. Reformat The String	Solution	Solve	Easy	Microsoft	String