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Problems

975 problems

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Array447String249Hash Table190Math173Database113Sorting100Simulation93Counting70Two Pointers70Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · 975 results

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TitleSolutionAcceptDifficultyTopics
2215. Find the Difference of Two ArraysVideo
Solution81.4%Easy
Array, Hash Table· 7 companies
2220. Minimum Bit Flips to Convert NumberVideo
Solution88.0%Easy
Bit Manipulation· 7 companies
2224. Minimum Number of Operations to Convert TimeVideo
Solution66.3%Easy
Greedy, String· 1 company
2229. Check if an Array Is ConsecutiveVideoPremium
Solution61.6%Easy
Array, Hash Table +1
2230. The Users That Are Eligible for DiscountVideoPremium
Solution51.0%Easy
Database· 1 company
2231. Largest Number After Digit Swaps by ParityVideo
Solution65.7%Easy
Heap (Priority Queue), Sorting· 5 companies
2235. Add Two IntegersVideo
Solution88.0%Easy
Math· 9 companies
2236. Root Equals Sum of ChildrenVideo
Solution84.8%Easy
Binary Tree, Tree· 5 companies
2239. Find Closest Number to ZeroVideo
Solution47.8%Easy
Array· 6 companies
2243. Calculate Digit Sum of a StringVideo
Solution67.7%Easy
Simulation, String· 1 company
2248. Intersection of Multiple ArraysVideo
Solution68.8%Easy
Array, Counting +2· 2 companies
2255. Count Prefixes of a Given StringVideo
Solution74.3%Easy
Array, String· 1 company
2259. Remove Digit From Number to Maximize ResultVideo
Solution48.4%Easy
Enumeration, Greedy +1· 6 companies
2264. Largest 3-Same-Digit Number in StringVideo
Solution72.7%Easy
String· 5 companies
2269. Find the K-Beauty of a NumberVideo
Solution63.8%Easy
Math, Sliding Window +1· 3 companies
2273. Find Resultant Array After Removing AnagramsVideo
Solution69.9%Easy
Array, Hash Table +2· 7 companies
2278. Percentage of Letter in StringVideo
Solution75.1%Easy
String· 1 company
2283. Check if Number Has Equal Digit Count and Digit ValueVideo
Solution73.1%Easy
Counting, Hash Table +1· 2 companies
2287. Rearrange Characters to Make Target StringVideo
Solution63.0%Easy
Counting, Hash Table +1· 1 company
2293. Min Max GameVideo
Solution64.3%Easy
Array, Simulation
2299. Strong Password Checker IIVideo
Solution55.5%Easy
String· 1 company
2303. Calculate Amount Paid in TaxesVideo
Solution69.7%Easy
Array, Simulation· 6 companies
2309. Greatest English Letter in Upper and Lower CaseVideo
Solution72.6%Easy
Enumeration, Hash Table +1· 1 company
2315. Count AsterisksVideo
Solution83.3%Easy
String· 1 company
2319. Check if Matrix Is X-MatrixVideo
Solution67.2%Easy
Array, Matrix· 2 companies
2325. Decode the MessageVideo
Solution85.8%Easy
Hash Table, String· 4 companies
2329. Product Sales Analysis VVideoPremium
Solution70.9%Easy
Database· 1 company
2331. Evaluate Boolean Binary TreeVideo
Solution82.7%Easy
Binary Tree, Depth-First Search +1· 1 company
2335. Minimum Amount of Time to Fill CupsVideo
Solution60.7%Easy
Array, Greedy +2· 1 company
2339. All the Matches of the LeagueVideoPremium
Solution88.0%Easy
Database· 1 company
2341. Maximum Number of Pairs in ArrayVideo
Solution76.0%Easy
Array, Counting +1· 1 company
2347. Best Poker HandVideo
Solution61.7%Easy
Array, Counting +1· 2 companies
2351. First Letter to Appear TwiceVideo
Solution74.9%Easy
Bit Manipulation, Counting +2· 2 companies
2356. Number of Unique Subjects Taught by Each TeacherVideo
Solution89.1%Easy
Database· 4 companies
2357. Make Array Zero by Subtracting Equal AmountsVideo
Solution73.8%Easy
Array, Greedy +4· 1 company
2363. Merge Similar ItemsVideo
Solution77.4%Easy
Array, Hash Table +2· 1 company
2367. Number of Arithmetic TripletsVideo
Solution85.4%Easy
Array, Enumeration +2· 2 companies
2373. Largest Local Values in a MatrixVideo
Solution87.8%Easy
Array, Matrix· 4 companies
2377. Sort the Olympic TableVideoPremium
Solution79.1%Easy
Database
2379. Minimum Recolors to Get K Consecutive Black BlocksVideo
Solution68.6%Easy
Sliding Window, String· 5 companies
2383. Minimum Hours of Training to Win a CompetitionVideo
Solution42.5%Easy
Array, Greedy· 1 company
2389. Longest Subsequence With Limited SumVideo
Solution73.5%Easy
Array, Binary Search +3· 4 companies
2395. Find Subarrays With Equal SumVideo
Solution67.5%Easy
Array, Hash Table· 3 companies
2399. Check Distances Between Same LettersVideo
Solution71.5%Easy
Array, Hash Table +1
2404. Most Frequent Even ElementVideo
Solution54.0%Easy
Array, Counting +1· 2 companies
2409. Count Days Spent TogetherVideo
Solution66.7%Easy
Math, String
2413. Smallest Even MultipleVideo
Solution88.5%Easy
Math, Number Theory· 4 companies
2418. Sort the PeopleVideo
Solution84.9%Easy
Array, Hash Table +2· 6 companies
2423. Remove Letter To Equalize FrequencyVideo
Solution19.3%Easy
Counting, Hash Table +1· 4 companies
2427. Number of Common FactorsVideo
Solution80.6%Easy
Enumeration, Math +1· 3 companies
Showing 551–600 of 975