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Array2,209 String870 Hash Table786 Math682 Dynamic Programming666 Sorting504 Greedy480 Binary Search352 Depth-First Search335 Database303 Bit Manipulation283 Matrix278 Tree261 Breadth-First Search255 Two Pointers249 All topics

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TitleSolutionAcceptDifficultyTopics

3168. Minimum Number of Chairs in a Waiting RoomVideo

Solution79.3%Easy

Simulation, String· 3 companies

3170. Lexicographically Minimum String After Removing StarsVideo

Solution51.0%Medium

Greedy, Hash Table +3· 7 companies

3174. Clear DigitsVideo

Solution82.7%Easy

Simulation, Stack +1· 5 companies

3210. Find the Encrypted StringVideo

Solution67.9%Easy

3211. Generate Binary Strings Without Adjacent ZerosVideo

Solution88.3%Medium

Backtracking, Bit Manipulation +1· 4 companies

3213. Construct String with Minimum CostVideo

Solution19.0%Hard

Array, Dynamic Programming +2· 1 company

3216. Lexicographically Smallest String After a SwapVideo

Solution54.6%Easy

Greedy, String· 1 company

3223. Minimum Length of String After OperationsVideo

Solution75.0%Medium

Counting, Hash Table +1· 3 companies

3227. Vowels Game in a StringVideo

Solution77.1%Medium

Brainteaser, Game Theory +2· 3 companies

3228. Maximum Number of Operations to Move Ones to the EndVideo

Solution67.2%Medium

Counting, Greedy +1· 4 companies

3234. Count the Number of Substrings With Dominant OnesVideo

Solution42.1%Medium

Enumeration, Sliding Window +1· 5 companies

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

3260. Find the Largest Palindrome Divisible by KVideo

Solution17.0%Hard

Dynamic Programming, Greedy +3· 2 companies

3261. Count Substrings That Satisfy K-Constraint IIVideo

Solution24.1%Hard

Array, Binary Search +3

3271. Hash Divided StringVideo

Solution82.5%Medium

Simulation, String· 1 company

3274. Check if Two Chessboard Squares Have the Same ColorVideo

Solution72.3%Easy

Math, String· 3 companies

3279. Maximum Total Area Occupied by PistonsVideoPremium

Solution41.3%Hard

Array, Counting +4

3280. Convert Date to BinaryVideo

Solution88.8%Easy

Math, String· 1 company

3291. Minimum Number of Valid Strings to Form Target IVideo

Solution22.4%Medium

Array, Binary Search +7· 1 company

3292. Minimum Number of Valid Strings to Form Target IIVideo

Solution21.1%Hard

Array, Binary Search +6

3295. Report Spam MessageVideo

Solution48.6%Medium

Array, Hash Table +1· 2 companies

3297. Count Substrings That Can Be Rearranged to Contain a String IVideo

Solution42.9%Medium

Hash Table, Sliding Window +1· 1 company

3298. Count Substrings That Can Be Rearranged to Contain a String IIVideo

Solution55.2%Hard

Hash Table, Sliding Window +1

3302. Find the Lexicographically Smallest Valid SequenceVideo

Solution57.9%Medium

Dynamic Programming, Greedy +2

3303. Find the Occurrence of First Almost Equal SubstringVideo

Solution16.0%Hard

String, String Matching· 1 company

3305. Count of Substrings Containing Every Vowel and K Consonants IVideo

Solution41.8%Medium

Hash Table, Sliding Window +1

3306. Count of Substrings Containing Every Vowel and K Consonants IIVideo

Solution40.6%Medium

Hash Table, Sliding Window +1· 3 companies

3316. Find Maximum Removals From Source StringVideo

Solution39.3%Medium

Array, Dynamic Programming +3· 1 company

3320. Count The Number of Winning SequencesVideo

Solution32.4%Hard

Dynamic Programming, String· 1 company

3324. Find the Sequence of Strings Appeared on the ScreenVideo

Solution79.5%Medium

Simulation, String· 1 company

3325. Count Substrings With K-Frequency Characters IVideo

Solution56.3%Medium

Hash Table, Sliding Window +1· 1 company

3327. Check if DFS Strings Are PalindromesVideo

Solution20.9%Hard

Array, Depth-First Search +4· 1 company

3329. Count Substrings With K-Frequency Characters IIVideoPremium

Solution72.2%Hard

Hash Table, Sliding Window +1

3330. Find the Original Typed String IVideo

Solution72.1%Easy

String· 7 companies

3331. Find Subtree Sizes After ChangesVideo

Solution52.8%Medium

Array, Depth-First Search +3

3333. Find the Original Typed String IIVideo

Solution45.6%Hard

Dynamic Programming, Prefix Sum +1· 5 companies

3335. Total Characters in String After Transformations IVideo

Solution45.7%Medium

Counting, Dynamic Programming +3· 4 companies

3337. Total Characters in String After Transformations IIVideo

Solution58.0%Hard

Counting, Dynamic Programming +3· 2 companies

3340. Check Balanced StringVideo

Solution82.3%Easy

String· 1 company

3343. Count Number of Balanced PermutationsVideo

Solution49.1%Hard

Combinatorics, Dynamic Programming +2· 2 companies

3348. Smallest Divisible Digit Product IIVideo

Solution45.3%Hard

Backtracking, Greedy +3· 3 companies

3352. Count K-Reducible Numbers Less Than NVideo

Solution27.8%Hard

Combinatorics, Dynamic Programming +2· 1 company

3361. Shift Distance Between Two StringsVideo

Solution52.8%Medium

Array, Prefix Sum +1· 1 company

3365. Rearrange K Substrings to Form Target StringVideo

Solution56.7%Medium

Hash Table, Sorting +1

3387. Maximize Amount After Two Days of ConversionsVideo

Solution60.6%Medium

Array, Breadth-First Search +3· 3 companies

3389. Minimum Operations to Make Character Frequencies EqualVideo

–25.8%Hard

Counting, Dynamic Programming +3· 2 companies

3399. Smallest Substring With Identical Characters IIVideo

Solution39.0%Hard

Binary Search, String· 1 company

3403. Find the Lexicographically Largest String From the Box IVideo

Solution41.0%Medium

Enumeration, String +1· 5 companies

3406. Find the Lexicographically Largest String From the Box IIVideoPremium

Solution48.9%Hard

String, Two Pointers

Showing 701–750 of 870