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Problems

249 problems

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Array447String249Hash Table190Math173Database113Sorting100Simulation93Counting70Two Pointers70Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · 249 results

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TitleSolutionAcceptDifficultyTopics
2224. Minimum Number of Operations to Convert TimeVideo
Solution66.3%Easy
Greedy, String· 1 company
2243. Calculate Digit Sum of a StringVideo
Solution67.7%Easy
Simulation, String· 1 company
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
2299. Strong Password Checker IIVideo
Solution55.5%Easy
String· 1 company
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
2325. Decode the MessageVideo
Solution85.8%Easy
Hash Table, String· 4 companies
2351. First Letter to Appear TwiceVideo
Solution74.9%Easy
Bit Manipulation, Counting +2· 2 companies
2379. Minimum Recolors to Get K Consecutive Black BlocksVideo
Solution68.6%Easy
Sliding Window, String· 5 companies
2399. Check Distances Between Same LettersVideo
Solution71.5%Easy
Array, Hash Table +1
2409. Count Days Spent TogetherVideo
Solution66.7%Easy
Math, String
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
2437. Number of Valid Clock TimesVideo
Solution48.5%Easy
Enumeration, String· 1 company
2446. Determine if Two Events Have ConflictVideo
Solution53.7%Easy
Array, String· 2 companies
2451. Odd String DifferenceVideo
Solution61.9%Easy
Array, Hash Table +1· 4 companies
2490. Circular SentenceVideo
Solution70.2%Easy
String· 1 company
2496. Maximum Value of a String in an ArrayVideo
Solution74.2%Easy
Array, String· 1 company
2506. Count Pairs Of Similar StringsVideo
Solution73.7%Easy
Array, Bit Manipulation +3· 4 companies
2515. Shortest Distance to Target String in a Circular ArrayVideo
Solution65.1%Easy
Array, String· 4 companies
2586. Count the Number of Vowel Strings in RangeVideo
Solution74.3%Easy
Array, Counting +1· 1 company
2609. Find the Longest Balanced Substring of a Binary StringVideo
Solution46.6%Easy
String· 1 company
2678. Number of Senior CitizensVideo
Solution81.5%Easy
Array, String· 2 companies
2696. Minimum String Length After Removing SubstringsVideo
Solution77.0%Easy
Simulation, Stack +1· 6 companies
2697. Lexicographically Smallest PalindromeVideo
Solution82.0%Easy
Greedy, String +1· 3 companies
2710. Remove Trailing Zeros From a StringVideo
Solution79.5%Easy
String
2716. Minimize String LengthVideo
Solution80.2%Easy
Hash Table, String· 2 companies
2744. Find Maximum Number of String PairsVideo
Solution82.4%Easy
Array, Hash Table +2
2788. Split Strings by SeparatorVideo
Solution76.1%Easy
Array, String· 3 companies
2810. Faulty KeyboardVideo
Solution80.7%Easy
Simulation, String· 1 company
2828. Check if a String Is an Acronym of WordsVideo
Solution82.8%Easy
Array, String· 2 companies
2833. Furthest Point From OriginVideo
Solution77.2%Easy
Counting, String· 4 companies
2839. Check if Strings Can be Made Equal With Operations IVideo
Solution61.8%Easy
String· 3 companies
2864. Maximum Odd Binary NumberVideo
Solution83.0%Easy
Greedy, Math +1· 3 companies
2900. Longest Unequal Adjacent Groups Subsequence IVideo
Solution67.0%Easy
Array, Dynamic Programming +2· 1 company
2937. Make Three Strings EqualVideo
Solution45.3%Easy
String· 1 company
2942. Find Words Containing CharacterVideo
Solution90.4%Easy
Array, String· 6 companies
3014. Minimum Number of Pushes to Type Word IVideo
Solution77.1%Easy
Greedy, Math +1· 4 companies
3019. Number of Changing KeysVideo
Solution80.6%Easy
String· 5 companies
3042. Count Prefix and Suffix Pairs IVideo
Solution77.8%Easy
Array, Hash Function +4· 6 companies
3083. Existence of a Substring in a String and Its ReverseVideo
Solution66.6%Easy
Hash Table, String· 1 company
3090. Maximum Length Substring With Two OccurrencesVideo
Solution77.4%Easy
Hash Table, Sliding Window +1· 2 companies
3110. Score of a StringVideo
Solution91.4%Easy
String· 5 companies
Showing 151–200 of 249