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Problems

437 problems

Has videoPremium onlyReset
Array1,212Hash Table473String437Math331Greedy330Dynamic Programming327Sorting302Depth-First Search208Binary Search189Breadth-First Search166Matrix163Tree158Prefix Sum155Two Pointers150Database137All topics

Medium · 437 results

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TitleSolutionAcceptDifficultyTopics
2086. Minimum Number of Food Buckets to Feed the HamstersVideo
Solution48.1%Medium
Dynamic Programming, Greedy +1· 3 companies
2096. Step-By-Step Directions From a Binary Tree Node to AnotherVideo
Solution56.3%Medium
Binary Tree, Depth-First Search +2· 6 companies
2109. Adding Spaces to a StringVideo
Solution71.8%Medium
Array, Simulation +2· 5 companies
2115. Find All Possible Recipes from Given SuppliesVideo
Solution56.8%Medium
Array, Graph +3· 10 companies
2116. Check if a Parentheses String Can Be ValidVideo
Solution45.1%Medium
Greedy, Stack +1· 7 companies
2120. Execution of All Suffix Instructions Staying in a GridVideo
Solution82.4%Medium
Simulation, String
2125. Number of Laser Beams in a BankVideo
Solution87.0%Medium
Array, Math +2· 2 companies
2131. Longest Palindrome by Concatenating Two Letter WordsVideo
Solution53.5%Medium
Array, Counting +3· 6 companies
2135. Count Words Obtained After Adding a LetterVideo
Solution44.0%Medium
Array, Bit Manipulation +3· 1 company
2166. Design BitsetVideo
Solution32.7%Medium
Array, Design +2
2168. Unique Substrings With Equal Digit FrequencyVideoPremium
Solution64.6%Medium
Counting, Hash Function +3· 1 company
2182. Construct String With Repeat LimitVideo
Solution70.9%Medium
Counting, Greedy +3· 5 companies
2186. Minimum Number of Steps to Make Two Strings Anagram IIVideo
Solution73.3%Medium
Counting, Hash Table +1· 1 company
2207. Maximize Number of Subsequences in a StringVideo
Solution36.0%Medium
Greedy, Prefix Sum +1· 1 company
2211. Count Collisions on a RoadVideo
Solution58.1%Medium
Simulation, Stack +1· 3 companies
2222. Number of Ways to Select BuildingsVideo
Solution50.8%Medium
Dynamic Programming, Prefix Sum +1· 3 companies
2232. Minimize Result by Adding Parentheses to ExpressionVideo
Solution68.4%Medium
Enumeration, String· 3 companies
2266. Count Number of TextsVideo
Solution50.6%Medium
Dynamic Programming, Hash Table +2· 3 companies
2268. Minimum Number of KeypressesVideoPremium
Solution71.2%Medium
Counting, Greedy +3· 1 company
2284. Sender With Largest Word CountVideo
Solution60.2%Medium
Array, Counting +2· 1 company
2288. Apply Discount to PricesVideo
Solution34.5%Medium
String· 1 company
2311. Longest Binary Subsequence Less Than or Equal to KVideo
Solution52.8%Medium
Dynamic Programming, Greedy +2· 3 companies
2330. Valid Palindrome IVVideoPremium
Solution75.8%Medium
String, Two Pointers· 2 companies
2337. Move Pieces to Obtain a StringVideo
Solution56.7%Medium
String, Two Pointers· 5 companies
2343. Query Kth Smallest Trimmed NumberVideo
Solution47.9%Medium
Array, Divide and Conquer +5· 1 company
2370. Longest Ideal SubsequenceVideo
Solution47.1%Medium
Dynamic Programming, Hash Table +1· 2 companies
2375. Construct Smallest Number From DI StringVideo
Solution85.6%Medium
Backtracking, Greedy +2· 3 companies
2380. Time Needed to Rearrange a Binary StringVideo
Solution53.3%Medium
Dynamic Programming, Simulation +1· 5 companies
2381. Shifting Letters IIVideo
Solution53.6%Medium
Array, Prefix Sum +1· 5 companies
2384. Largest Palindromic NumberVideo
Solution37.1%Medium
Counting, Greedy +2· 3 companies
2390. Removing Stars From a StringVideo
Solution79.7%Medium
Simulation, Stack +1· 4 companies
2391. Minimum Amount of Time to Collect GarbageVideo
Solution85.2%Medium
Array, Prefix Sum +1· 2 companies
2405. Optimal Partition of StringVideo
Solution78.0%Medium
Greedy, Hash Table +1· 4 companies
2408. Design SQLVideoPremium
Solution63.9%Medium
Array, Design +2· 2 companies
2414. Length of the Longest Alphabetical Continuous SubstringVideo
Solution61.0%Medium
String· 3 companies
2434. Using a Robot to Print the Lexicographically Smallest StringVideo
Solution62.5%Medium
Greedy, Hash Table +2· 6 companies
2450. Number of Distinct Binary Strings After Applying OperationsVideoPremium
Solution63.0%Medium
Math, String· 1 company
2452. Words Within Two Edits of DictionaryVideo
Solution73.4%Medium
Array, String· 4 companies
2456. Most Popular Video CreatorVideo
Solution45.3%Medium
Array, Hash Table +3· 2 companies
2483. Minimum Penalty for a ShopVideo
Solution71.2%Medium
Prefix Sum, String· 6 companies
2486. Append Characters to String to Make SubsequenceVideo
Solution72.9%Medium
Greedy, String +1· 2 companies
2489. Number of Substrings With Fixed RatioVideoPremium
Solution56.0%Medium
Hash Table, Math +2· 1 company
2512. Reward Top K StudentsVideo
Solution47.5%Medium
Array, Hash Table +3· 1 company
2516. Take K of Each Character From Left and RightVideo
Solution51.4%Medium
Hash Table, Sliding Window +1· 3 companies
2522. Partition String Into Substrings With Values at Most KVideo
Solution47.6%Medium
Dynamic Programming, Greedy +1
2531. Make Number of Distinct Characters EqualVideo
Solution27.5%Medium
Counting, Hash Table +1· 1 company
2539. Count the Number of Good SubsequencesVideoPremium
Solution47.7%Medium
Combinatorics, Counting +3· 4 companies
2546. Apply Bitwise Operations to Make Strings EqualVideo
Solution42.6%Medium
Bit Manipulation, String· 1 company
2559. Count Vowel Strings in RangesVideo
Solution67.8%Medium
Array, Prefix Sum +1· 9 companies
2564. Substring XOR QueriesVideo
Solution36.1%Medium
Array, Bit Manipulation +2· 1 company
Showing 251–300 of 437