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Question Free? Status Difficulty Topics Similar Questions
2301. Match Substring After Replacement  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Hash Table  🔗
String  🔗
String Matching  🔗
211. Design Add and Search Words Data Structure  🔗  📝
2302. Count Subarrays With Score Less Than K  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Binary Search  🔗
Sliding Window  🔗
Prefix Sum  🔗
53. Maximum Subarray  🔗  📝
713. Subarray Product Less Than K  🔗  📝
930. Binary Subarrays With Sum  🔗  📝
2303. Calculate Amount Paid in Taxes  🔗  📝
🆓 ⭐️
Array  🔗
Simulation  🔗
2304. Minimum Path Cost in a Grid  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Matrix  🔗
62. Unique Paths  🔗  📝
63. Unique Paths II  🔗  📝
64. Minimum Path Sum  🔗  📝
174. Dungeon Game  🔗  📝
256. Paint House  🔗  📝
2305. Fair Distribution of Cookies  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Backtracking  🔗
Bit Manipulation  🔗
Bitmask  🔗
410. Split Array Largest Sum  🔗  📝
548. Split Array with Equal Sum  🔗  📝
698. Partition to K Equal Sum Subsets  🔗  📝
1879. Minimum XOR Sum of Two Arrays  🔗  📝
1986. Minimum Number of Work Sessions to Finish the Tasks  🔗  📝
1994. The Number of Good Subsets  🔗  📝
2035. Partition Array Into Two Arrays to Minimize Sum Difference  🔗  📝
2306. Naming a Company  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Hash Table  🔗
String  🔗
Bit Manipulation  🔗
Enumeration  🔗
2307. Check for Contradictions in Equations  🔗  📝
💰 ⭐️⭐️⭐️
Array  🔗
Depth-First Search  🔗
Union Find  🔗
Graph  🔗
399. Evaluate Division  🔗  📝
2308. Arrange Table by Gender  🔗  📝
💰 ⭐️⭐️
Database  🔗
2309. Greatest English Letter in Upper and Lower Case  🔗  📝
🆓 ⭐️
Hash Table  🔗
String  🔗
Enumeration  🔗
2310. Sum of Numbers With Units Digit K  🔗  📝
🆓 ⭐️⭐️
Math  🔗
Dynamic Programming  🔗
Greedy  🔗
Enumeration  🔗
1067. Digit Count in Range  🔗  📝
2180. Count Integers With Even Digit Sum  🔗  📝
2311. Longest Binary Subsequence Less Than or Equal to K  🔗  📝
🆓 ⭐️⭐️
String  🔗
Dynamic Programming  🔗
Greedy  🔗
Memoization  🔗
1702. Maximum Binary String After Change  🔗  📝
2312. Selling Pieces of Wood  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Memoization  🔗
1240. Tiling a Rectangle with the Fewest Squares  🔗  📝
1444. Number of Ways of Cutting a Pizza  🔗  📝
2313. Minimum Flips in Binary Tree to Get Result  🔗  📝
💰 ⭐️⭐️⭐️
Dynamic Programming  🔗
Tree  🔗
Depth-First Search  🔗
Binary Tree  🔗
1612. Check If Two Expression Trees are Equivalent  🔗  📝
1628. Design an Expression Tree With Evaluate Function  🔗  📝
2331. Evaluate Boolean Binary Tree  🔗  📝
2314. The First Day of the Maximum Recorded Degree in Each City  🔗  📝
💰 ⭐️⭐️
Database  🔗
2315. Count Asterisks  🔗  📝
🆓 ⭐️
String  🔗
2316. Count Unreachable Pairs of Nodes in an Undirected Graph  🔗  📝
🆓 ⭐️⭐️
Depth-First Search  🔗
Breadth-First Search  🔗
Union Find  🔗
Graph  🔗
200. Number of Islands  🔗  📝
2317. Maximum XOR After Operations   🔗  📝
🆓 ⭐️⭐️
Array  🔗
Math  🔗
Bit Manipulation  🔗
421. Maximum XOR of Two Numbers in an Array  🔗  📝
2318. Number of Distinct Roll Sequences  🔗  📝
🆓 ⭐️⭐️⭐️
Dynamic Programming  🔗
Memoization  🔗
1223. Dice Roll Simulation  🔗  📝
1473. Paint House III  🔗  📝
2319. Check if Matrix Is X-Matrix  🔗  📝
🆓 ⭐️
Array  🔗
Matrix  🔗
1572. Matrix Diagonal Sum  🔗  📝
2320. Count Number of Ways to Place Houses  🔗  📝
🆓 ⭐️⭐️
Dynamic Programming  🔗
70. Climbing Stairs  🔗  📝
198. House Robber  🔗  📝
2321. Maximum Score Of Spliced Array  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
53. Maximum Subarray  🔗  📝
2322. Minimum Score After Removals on a Tree  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Bit Manipulation  🔗
Tree  🔗
Depth-First Search  🔗
2323. Find Minimum Time to Finish All Jobs II  🔗  📝
💰 ⭐️⭐️
Array  🔗
Greedy  🔗
Sorting  🔗
621. Task Scheduler  🔗  📝
1723. Find Minimum Time to Finish All Jobs  🔗  📝
1986. Minimum Number of Work Sessions to Finish the Tasks  🔗  📝
2324. Product Sales Analysis IV  🔗  📝
💰 ⭐️⭐️
Database  🔗
1068. Product Sales Analysis I  🔗  📝
1069. Product Sales Analysis II  🔗  📝
1070. Product Sales Analysis III  🔗  📝
2325. Decode the Message  🔗  📝
🆓 ⭐️
Hash Table  🔗
String  🔗
2326. Spiral Matrix IV  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Linked List  🔗
Matrix  🔗
Simulation  🔗
54. Spiral Matrix  🔗  📝
59. Spiral Matrix II  🔗  📝
885. Spiral Matrix III  🔗  📝
2327. Number of People Aware of a Secret  🔗  📝
🆓 ⭐️⭐️
Dynamic Programming  🔗
Queue  🔗
Simulation  🔗
2328. Number of Increasing Paths in a Grid  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Depth-First Search  🔗
Breadth-First Search  🔗
Graph  🔗
Topological Sort  🔗
Memoization  🔗
Matrix  🔗
329. Longest Increasing Path in a Matrix  🔗  📝
797. All Paths From Source to Target  🔗  📝
2329. Product Sales Analysis V  🔗  📝
💰 ⭐️
Database  🔗
1068. Product Sales Analysis I  🔗  📝
1069. Product Sales Analysis II  🔗  📝
1070. Product Sales Analysis III  🔗  📝
2330. Valid Palindrome IV  🔗  📝
💰 ⭐️⭐️
Two Pointers  🔗
String  🔗
125. Valid Palindrome  🔗  📝
680. Valid Palindrome II  🔗  📝
1216. Valid Palindrome III  🔗  📝
2331. Evaluate Boolean Binary Tree  🔗  📝
🆓 ⭐️
Binary Search  🔗
Tree  🔗
Depth-First Search  🔗
1612. Check If Two Expression Trees are Equivalent  🔗  📝
1628. Design an Expression Tree With Evaluate Function  🔗  📝
2313. Minimum Flips in Binary Tree to Get Result  🔗  📝
2332. The Latest Time to Catch a Bus  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Two Pointers  🔗
Binary Search  🔗
Sorting  🔗
1870. Minimum Speed to Arrive on Time  🔗  📝
2333. Minimum Sum of Squared Difference  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Math  🔗
Sorting  🔗
Heap (Priority Queue)  🔗
1818. Minimum Absolute Sum Difference  🔗  📝
2035. Partition Array Into Two Arrays to Minimize Sum Difference  🔗  📝
2334. Subarray With Elements Greater Than Varying Threshold  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Stack  🔗
Union Find  🔗
Monotonic Stack  🔗
1856. Maximum Subarray Min-Product  🔗  📝
2030. Smallest K-Length Subsequence With Occurrences of a Letter  🔗  📝
2261. K Divisible Elements Subarrays  🔗  📝
2335. Minimum Amount of Time to Fill Cups  🔗  📝
🆓 ⭐️
Array  🔗
Greedy  🔗
Heap (Priority Queue)  🔗
1354. Construct Target Array With Multiple Sums  🔗  📝
1753. Maximum Score From Removing Stones  🔗  📝
2141. Maximum Running Time of N Computers  🔗  📝
2336. Smallest Number in Infinite Set  🔗  📝
🆓 ⭐️⭐️
Hash Table  🔗
Design  🔗
Heap (Priority Queue)  🔗
41. First Missing Positive  🔗  📝
2337. Move Pieces to Obtain a String  🔗  📝
🆓 ⭐️⭐️
Two Pointers  🔗
String  🔗
20. Valid Parentheses  🔗  📝
777. Swap Adjacent in LR String  🔗  📝
2338. Count the Number of Ideal Arrays  🔗  📝
🆓 ⭐️⭐️⭐️
Math  🔗
Dynamic Programming  🔗
Combinatorics  🔗
Number Theory  🔗
1735. Count Ways to Make Array With Product  🔗  📝
2339. All the Matches of the League  🔗  📝
💰 ⭐️
Database  🔗
2340. Minimum Adjacent Swaps to Make a Valid Array  🔗  📝
💰 ⭐️⭐️
Array  🔗
Greedy  🔗
1703. Minimum Adjacent Swaps for K Consecutive Ones  🔗  📝
2341. Maximum Number of Pairs in Array  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Counting  🔗
451. Sort Characters By Frequency  🔗  📝
692. Top K Frequent Words  🔗  📝
1636. Sort Array by Increasing Frequency  🔗  📝
2342. Max Sum of a Pair With Equal Sum of Digits  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Sorting  🔗
Heap (Priority Queue)  🔗
2343. Query Kth Smallest Trimmed Number  🔗  📝
🆓 ⭐️⭐️
Array  🔗
String  🔗
Divide and Conquer  🔗
Sorting  🔗
Heap (Priority Queue)  🔗
Radix Sort  🔗
Quickselect  🔗
2344. Minimum Deletions to Make Array Divisible  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Math  🔗
Sorting  🔗
Heap (Priority Queue)  🔗
Number Theory  🔗
1497. Check If Array Pairs Are Divisible by k  🔗  📝
2345. Finding the Number of Visible Mountains  🔗  📝
💰 ⭐️⭐️
Array  🔗
Stack  🔗
Sorting  🔗
Monotonic Stack  🔗
1762. Buildings With an Ocean View  🔗  📝
2346. Compute the Rank as a Percentage  🔗  📝
💰 ⭐️⭐️
Database  🔗
2347. Best Poker Hand  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Counting  🔗
2348. Number of Zero-Filled Subarrays  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Math  🔗
413. Arithmetic Slices  🔗  📝
2110. Number of Smooth Descent Periods of a Stock  🔗  📝
2349. Design a Number Container System  🔗  📝
🆓 ⭐️⭐️
Hash Table  🔗
Design  🔗
Heap (Priority Queue)  🔗
Ordered Set  🔗
1845. Seat Reservation Manager  🔗  📝
2353. Design a Food Rating System  🔗  📝
2350. Shortest Impossible Sequence of Rolls  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Hash Table  🔗
Greedy  🔗
2351. First Letter to Appear Twice  🔗  📝
🆓 ⭐️
Hash Table  🔗
String  🔗
Counting  🔗
1. Two Sum  🔗  📝
387. First Unique Character in a String  🔗  📝
2352. Equal Row and Column Pairs  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Matrix  🔗
Simulation  🔗
2353. Design a Food Rating System  🔗  📝
🆓 ⭐️⭐️
Hash Table  🔗
Design  🔗
Heap (Priority Queue)  🔗
Ordered Set  🔗
2349. Design a Number Container System  🔗  📝
2354. Number of Excellent Pairs  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Hash Table  🔗
Binary Search  🔗
Bit Manipulation  🔗
1. Two Sum  🔗  📝
2355. Maximum Number of Books You Can Take  🔗  📝
💰 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Stack  🔗
Monotonic Stack  🔗
300. Longest Increasing Subsequence  🔗  📝
1800. Maximum Ascending Subarray Sum  🔗  📝
2356. Number of Unique Subjects Taught by Each Teacher  🔗  📝
💰 ⭐️
Database  🔗
2357. Make Array Zero by Subtracting Equal Amounts  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Sorting  🔗
Heap (Priority Queue)  🔗
Simulation  🔗
217. Contains Duplicate  🔗  📝
2358. Maximum Number of Groups Entering a Competition  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Math  🔗
Binary Search  🔗
Greedy  🔗
1691. Maximum Height by Stacking Cuboids   🔗  📝
2359. Find Closest Node to Given Two Nodes  🔗  📝
🆓 ⭐️⭐️
Depth-First Search  🔗
Graph  🔗
2360. Longest Cycle in a Graph  🔗  📝
🆓 ⭐️⭐️⭐️
Depth-First Search  🔗
Graph  🔗
Topological Sort  🔗
1591. Strange Printer II  🔗  📝
2361. Minimum Costs Using the Train Line  🔗  📝
💰 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
815. Bus Routes  🔗  📝
1184. Distance Between Bus Stops  🔗  📝
2362. Generate the Invoice  🔗  📝
💰 ⭐️⭐️⭐️
Database  🔗
2363. Merge Similar Items  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Sorting  🔗
Ordered Set  🔗
2364. Count Number of Bad Pairs  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
532. K-diff Pairs in an Array  🔗  📝
974. Subarray Sums Divisible by K  🔗  📝
1814. Count Nice Pairs in an Array  🔗  📝
2006. Count Number of Pairs With Absolute Difference K  🔗  📝
2176. Count Equal and Divisible Pairs in an Array  🔗  📝
2365. Task Scheduler II  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Simulation  🔗
621. Task Scheduler  🔗  📝
849. Maximize Distance to Closest Person  🔗  📝
1437. Check If All 1's Are at Least Length K Places Away  🔗  📝
2366. Minimum Replacements to Sort the Array  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Math  🔗
Greedy  🔗
1827. Minimum Operations to Make the Array Increasing  🔗  📝
2367. Number of Arithmetic Triplets  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Two Pointers  🔗
Enumeration  🔗
1. Two Sum  🔗  📝
15. 3Sum  🔗  📝
2368. Reachable Nodes With Restrictions  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Tree  🔗
Depth-First Search  🔗
Breadth-First Search  🔗
Graph  🔗
752. Open the Lock  🔗  📝
1654. Minimum Jumps to Reach Home  🔗  📝
2369. Check if There is a Valid Partition For The Array  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Dynamic Programming  🔗
2370. Longest Ideal Subsequence  🔗  📝
🆓 ⭐️⭐️
Hash Table  🔗
String  🔗
Dynamic Programming  🔗
300. Longest Increasing Subsequence  🔗  📝
2371. Minimize Maximum Value in a Grid  🔗  📝
💰 ⭐️⭐️⭐️
135. Candy  🔗  📝
2372. Calculate the Influence of Each Salesperson  🔗  📝
💰 ⭐️⭐️