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Problems

249 problems

Has videoPremium onlyReset
Array447String249Hash Table190Math173Database113Sorting100Simulation93Counting70Two Pointers70Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · 249 results

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TitleSolutionAcceptDifficultyTopics
3114. Latest Time You Can Obtain After Replacing CharactersVideo
Solution35.4%Easy
Enumeration, String· 1 company
3120. Count the Number of Special Characters IVideo
Solution77.2%Easy
Hash Table, String· 3 companies
3136. Valid WordVideo
Solution50.9%Easy
String· 8 companies
3146. Permutation Difference between Two StringsVideo
Solution87.9%Easy
Hash Table, String· 1 company
3168. Minimum Number of Chairs in a Waiting RoomVideo
Solution79.3%Easy
Simulation, String· 3 companies
3174. Clear DigitsVideo
Solution82.7%Easy
Simulation, Stack +1· 5 companies
3210. Find the Encrypted StringVideo
Solution67.9%Easy
String
3216. Lexicographically Smallest String After a SwapVideo
Solution54.6%Easy
Greedy, String· 1 company
3248. Snake in MatrixVideo
Solution81.8%Easy
Array, Simulation +1· 1 company
3258. Count Substrings That Satisfy K-Constraint IVideo
Solution78.9%Easy
Sliding Window, String· 1 company
3274. Check if Two Chessboard Squares Have the Same ColorVideo
Solution72.3%Easy
Math, String· 3 companies
3280. Convert Date to BinaryVideo
Solution88.8%Easy
Math, String· 1 company
3330. Find the Original Typed String IVideo
Solution72.1%Easy
String· 7 companies
3340. Check Balanced StringVideo
Solution82.3%Easy
String· 1 company
3407. Substring Matching PatternVideo
Solution29.1%Easy
String, String Matching· 1 company
3438. Find Valid Pair of Adjacent Digits in StringVideo
Solution60.7%Easy
Counting, Hash Table +1· 3 companies
3442. Maximum Difference Between Even and Odd Frequency IVideo
Solution60.7%Easy
Counting, Hash Table +1· 4 companies
3456. Find Special Substring of Length KVideo
Solution35.1%Easy
String· 1 company
3461. Check If Digits Are Equal in String After Operations IVideo
Solution82.5%Easy
Combinatorics, Math +3· 4 companies
3491. Phone Number PrefixVideoPremium
Solution69.9%Easy
Array, Sorting +2
3498. Reverse Degree of a StringVideo
Solution91.9%Easy
Simulation, String· 2 companies
3541. Find Most Frequent Vowel and ConsonantVideo
Solution89.4%Easy
Counting, Hash Table +1· 3 companies
3545. Minimum Deletions for At Most K Distinct CharactersVideo
Solution72.2%Easy
Counting, Greedy +3· 2 companies
3571. Find the Shortest Superstring IIVideoPremium
Solution48.8%Easy
String
3581. Count Odd Letters from NumberVideoPremium
Solution85.1%Easy
Counting, Hash Table +2
3582. Generate Tag for Video CaptionVideo
Solution32.4%Easy
Simulation, String· 1 company
3602. Hexadecimal and Hexatrigesimal ConversionVideo
Solution79.4%Easy
Math, String· 1 company
3606. Coupon Code ValidatorVideo
Solution64.4%Easy
Array, Hash Table +2· 2 companies
3662. Filter Characters by FrequencyPremium
Solution86.2%Easy
Counting, Hash Table +1· 1 company
3692. Majority Frequency CharactersVideo
Solution66.3%Easy
Counting, Hash Table +1
3696. Maximum Distance Between Unequal Words in Array IVideoPremium
Solution81.7%Easy
Array, String· 1 company
3707. Equal Score SubstringsVideo
Solution56.7%Easy
Prefix Sum, String
3750. Minimum Number of Flips to Reverse Binary StringVideo
Solution75.5%Easy
Bit Manipulation, Math +2
3794. Reverse String PrefixVideo
Solution88.5%Easy
String, Two Pointers· 1 company
3798. Largest Even NumberVideo
Solution68.5%Easy
String
3803. Count Residue PrefixesVideo
Solution65.2%Easy
Hash Table, String· 2 companies
3813. Vowel-Consonant ScoreVideo
Solution53.3%Easy
Simulation, String
3823. Reverse Letters Then Special Characters in a StringVideo
Solution81.5%Easy
Simulation, String +1
3838. Weighted Word MappingVideo
Solution90.7%Easy
Array, Simulation +1· 2 companies
3856. Trim Trailing VowelsVideo
Solution77.2%Easy
String
3884. First Matching Character From Both EndsVideo
Solution81.5%Easy
String, Two Pointers
3894. Traffic Signal ColorVideo
Solution82.7%Easy
Math, Simulation +1· 1 company
3921. Score ValidatorVideo
Solution72.5%Easy
Array, Simulation +1
3931. Check Adjacent Digit DifferencesVideo
Solution77.1%Easy
String
3986. Number of Elapsed Seconds Between Two TimesVideo
Solution82.5%Easy
Math, String
3992. Rearrange String to Avoid Character PairVideo
Solution77.8%Easy
Sorting, String +1
4006. Count Valid PrefixesVideo
Solution78.0%Easy
Counting, String
4030. Check ASCII PalindromicVideo
Solution60.2%Easy
Bit Manipulation, String +1
4043. Count Rotations With Exactly K Equal Adjacent PairsVideo
Solution72.3%Easy
Enumeration, Sliding Window +1
Showing 201–249 of 249