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Problems

870 problems

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Array2,209String870Hash Table786Math682Dynamic Programming666Sorting504Greedy480Binary Search352Depth-First Search335Database303Bit Manipulation283Matrix278Tree261Breadth-First Search255Two Pointers249All topics

With video · 870 results

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TitleSolutionAcceptDifficultyTopics
2114. Maximum Number of Words Found in SentencesVideo
Solution86.6%Easy
Array, String· 4 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
2124. Check if All A's Appears Before All B'sVideo
Solution73.2%Easy
String· 2 companies
2125. Number of Laser Beams in a BankVideo
Solution87.0%Medium
Array, Math +2· 2 companies
2129. Capitalize the TitleVideo
Solution68.5%Easy
String
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
2138. Divide a String Into Groups of Size kVideo
Solution77.1%Easy
Simulation, String· 3 companies
2147. Number of Ways to Divide a Long CorridorVideo
Solution54.6%Hard
Dynamic Programming, Math +1· 3 companies
2156. Find Substring With Given Hash ValueVideo
Solution27.3%Hard
Hash Function, Rolling Hash +2· 1 company
2157. Groups of StringsVideo
Solution28.2%Hard
Bit Manipulation, String +1· 1 company
2166. Design BitsetVideo
Solution32.7%Medium
Array, Design +2
2167. Minimum Time to Remove All Cars Containing Illegal GoodsVideo
Solution42.2%Hard
Dynamic Programming, String· 1 company
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
2185. Counting Words With a Given PrefixVideo
Solution84.5%Easy
Array, String +1· 4 companies
2186. Minimum Number of Steps to Make Two Strings Anagram IIVideo
Solution73.3%Medium
Counting, Hash Table +1· 1 company
2193. Minimum Number of Moves to Make PalindromeVideo
Solution52.7%Hard
Binary Indexed Tree, Greedy +2· 5 companies
2194. Cells in a Range on an Excel SheetVideo
Solution83.9%Easy
String
2207. Maximize Number of Subsequences in a StringVideo
Solution36.0%Medium
Greedy, Prefix Sum +1· 1 company
2209. Minimum White Tiles After Covering With CarpetsVideo
Solution39.3%Hard
Dynamic Programming, Prefix Sum +1· 1 company
2211. Count Collisions on a RoadVideo
Solution58.1%Medium
Simulation, Stack +1· 3 companies
2213. Longest Substring of One Repeating CharacterVideo
Solution65.8%Hard
Array, Ordered Set +2· 1 company
2222. Number of Ways to Select BuildingsVideo
Solution50.8%Medium
Dynamic Programming, Prefix Sum +1· 3 companies
2223. Sum of Scores of Built StringsVideo
Solution51.0%Hard
Binary Search, Hash Function +4· 1 company
2224. Minimum Number of Operations to Convert TimeVideo
Solution66.3%Easy
Greedy, String· 1 company
2227. Encrypt and Decrypt StringsVideo
Solution38.8%Hard
Array, Design +3· 3 companies
2232. Minimize Result by Adding Parentheses to ExpressionVideo
Solution68.4%Medium
Enumeration, String· 3 companies
2243. Calculate Digit Sum of a StringVideo
Solution67.7%Easy
Simulation, String· 1 company
2246. Longest Path With Different Adjacent CharactersVideo
Solution54.2%Hard
Array, Depth-First Search +4· 5 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
2262. Total Appeal of A StringVideo
Solution56.4%Hard
Dynamic Programming, Hash Table +1· 2 companies
2264. Largest 3-Same-Digit Number in StringVideo
Solution72.7%Easy
String· 5 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
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
2284. Sender With Largest Word CountVideo
Solution60.2%Medium
Array, Counting +2· 1 company
2287. Rearrange Characters to Make Target StringVideo
Solution63.0%Easy
Counting, Hash Table +1· 1 company
2288. Apply Discount to PricesVideo
Solution34.5%Medium
String· 1 company
2296. Design a Text EditorVideo
Solution52.1%Hard
Design, Doubly-Linked List +4· 10 companies
2299. Strong Password Checker IIVideo
Solution55.5%Easy
String· 1 company
2301. Match Substring After ReplacementVideo
Solution43.3%Hard
Array, Hash Table +2· 1 company
2306. Naming a CompanyVideo
Solution46.4%Hard
Array, Bit Manipulation +3· 1 company
2309. Greatest English Letter in Upper and Lower CaseVideo
Solution72.6%Easy
Enumeration, Hash Table +1· 1 company
Showing 501–550 of 870