list-13

Question	Free?	Status	Difficulty	Topics	Similar Questions
1201. Ugly Number III  🔗  📝	🆓		⭐️⭐️	Math  🔗 Binary Search  🔗 Number Theory  🔗	264. Ugly Number II  🔗  📝
1202. Smallest String With Swaps  🔗  📝	🆓		⭐️⭐️	Hash Table  🔗 String  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Union Find  🔗	1722. Minimize Hamming Distance After Swap Operations  🔗  📝 2076. Process Restricted Friend Requests  🔗  📝 2231. Largest Number After Digit Swaps by Parity  🔗  📝
1203. Sort Items by Groups Respecting Dependencies  🔗  📝	🆓		⭐️⭐️⭐️	Depth-First Search  🔗 Breadth-First Search  🔗 Graph  🔗 Topological Sort  🔗
1204. Last Person to Fit in the Bus  🔗  📝	💰		⭐️⭐️	Database  🔗	1308. Running Total for Different Genders  🔗  📝 2004. The Number of Seniors and Juniors to Join the Company  🔗  📝 2010. The Number of Seniors and Juniors to Join the Company II  🔗  📝
1205. Monthly Transactions II  🔗  📝	💰		⭐️⭐️	Database  🔗	1193. Monthly Transactions I  🔗  📝
1206. Design Skiplist  🔗  📝	🆓		⭐️⭐️⭐️	Linked List  🔗 Design  🔗	705. Design HashSet  🔗  📝 706. Design HashMap  🔗  📝 707. Design Linked List  🔗  📝
1207. Unique Number of Occurrences  🔗  📝	🆓		⭐️	Array  🔗 Hash Table  🔗
1208. Get Equal Substrings Within Budget  🔗  📝	🆓		⭐️⭐️	String  🔗 Binary Search  🔗 Sliding Window  🔗 Prefix Sum  🔗
1209. Remove All Adjacent Duplicates in String II  🔗  📝	🆓		⭐️⭐️	String  🔗 Stack  🔗	1047. Remove All Adjacent Duplicates In String  🔗  📝 2197. Replace Non-Coprime Numbers in Array  🔗  📝
1210. Minimum Moves to Reach Target with Rotations  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Breadth-First Search  🔗 Matrix  🔗
1211. Queries Quality and Percentage  🔗  📝	💰		⭐️	Database  🔗	1633. Percentage of Users Attended a Contest  🔗  📝
1212. Team Scores in Football Tournament  🔗  📝	💰		⭐️⭐️	Database  🔗
1213. Intersection of Three Sorted Arrays  🔗  📝	💰		⭐️	Array  🔗 Hash Table  🔗 Binary Search  🔗 Counting  🔗	349. Intersection of Two Arrays  🔗  📝 2248. Intersection of Multiple Arrays  🔗  📝
1214. Two Sum BSTs  🔗  📝	💰		⭐️⭐️	Two Pointers  🔗 Binary Search  🔗 Stack  🔗 Tree  🔗 Depth-First Search  🔗 Binary Search Tree  🔗 Binary Tree  🔗	653. Two Sum IV - Input is a BST  🔗  📝
1215. Stepping Numbers  🔗  📝	💰		⭐️⭐️	Backtracking  🔗 Breadth-First Search  🔗
1216. Valid Palindrome III  🔗  📝	💰		⭐️⭐️⭐️	String  🔗 Dynamic Programming  🔗	680. Valid Palindrome II  🔗  📝 2330. Valid Palindrome IV  🔗  📝
1217. Minimum Cost to Move Chips to The Same Position  🔗  📝	🆓		⭐️	Array  🔗 Math  🔗 Greedy  🔗	1769. Minimum Number of Operations to Move All Balls to Each Box  🔗  📝
1218. Longest Arithmetic Subsequence of Given Difference  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗 Dynamic Programming  🔗
1219. Path with Maximum Gold  🔗  📝	🆓		⭐️⭐️	Array  🔗 Backtracking  🔗 Matrix  🔗
1220. Count Vowels Permutation  🔗  📝	🆓	✅	⭐️⭐️⭐️	Dynamic Programming  🔗
1221. Split a String in Balanced Strings  🔗  📝	🆓		⭐️	String  🔗 Greedy  🔗 Counting  🔗
1222. Queens That Can Attack the King  🔗  📝	🆓		⭐️⭐️	Array  🔗 Matrix  🔗 Simulation  🔗
1223. Dice Roll Simulation  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Dynamic Programming  🔗	2028. Find Missing Observations  🔗  📝 2318. Number of Distinct Roll Sequences  🔗  📝
1224. Maximum Equal Frequency  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Hash Table  🔗
1225. Report Contiguous Dates  🔗  📝	💰		⭐️⭐️⭐️	Database  🔗	1285. Find the Start and End Number of Continuous Ranges  🔗  📝 1613. Find the Missing IDs  🔗  📝
1226. The Dining Philosophers  🔗  📝	🆓		⭐️⭐️	Concurrency  🔗
1227. Airplane Seat Assignment Probability  🔗  📝	🆓		⭐️⭐️	Math  🔗 Dynamic Programming  🔗 Brainteaser  🔗 Probability and Statistics  🔗
1228. Missing Number In Arithmetic Progression  🔗  📝	💰		⭐️	Array  🔗 Math  🔗
1229. Meeting Scheduler  🔗  📝	💰		⭐️⭐️	Array  🔗 Two Pointers  🔗 Sorting  🔗
1230. Toss Strange Coins  🔗  📝	💰		⭐️⭐️	Math  🔗 Dynamic Programming  🔗 Probability and Statistics  🔗
1231. Divide Chocolate  🔗  📝	💰		⭐️⭐️⭐️	Array  🔗 Binary Search  🔗	410. Split Array Largest Sum  🔗  📝 1011. Capacity To Ship Packages Within D Days  🔗  📝
1232. Check If It Is a Straight Line  🔗  📝	🆓	✅	⭐️	Array  🔗 Math  🔗 Geometry  🔗
1233. Remove Sub-Folders from the Filesystem  🔗  📝	🆓		⭐️⭐️	Array  🔗 String  🔗 Trie  🔗
1234. Replace the Substring for Balanced String  🔗  📝	🆓		⭐️⭐️	String  🔗 Sliding Window  🔗
1235. Maximum Profit in Job Scheduling  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Binary Search  🔗 Dynamic Programming  🔗 Sorting  🔗	2008. Maximum Earnings From Taxi  🔗  📝 2054. Two Best Non-Overlapping Events  🔗  📝
1236. Web Crawler  🔗  📝	💰		⭐️⭐️	String  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Interactive  🔗	1242. Web Crawler Multithreaded  🔗  📝
1237. Find Positive Integer Solution for a Given Equation  🔗  📝	🆓		⭐️⭐️	Math  🔗 Two Pointers  🔗 Binary Search  🔗 Interactive  🔗
1238. Circular Permutation in Binary Representation  🔗  📝	🆓	✅	⭐️⭐️	Math  🔗 Backtracking  🔗 Bit Manipulation  🔗
1239. Maximum Length of a Concatenated String with Unique Characters  🔗  📝	🆓		⭐️⭐️	Array  🔗 String  🔗 Backtracking  🔗 Bit Manipulation  🔗
1240. Tiling a Rectangle with the Fewest Squares  🔗  📝	🆓		⭐️⭐️⭐️	Dynamic Programming  🔗 Backtracking  🔗	2312. Selling Pieces of Wood  🔗  📝
1241. Number of Comments per Post  🔗  📝	💰		⭐️	Database  🔗
1242. Web Crawler Multithreaded  🔗  📝	💰		⭐️⭐️	Depth-First Search  🔗 Breadth-First Search  🔗 Concurrency  🔗	1236. Web Crawler  🔗  📝
1243. Array Transformation  🔗  📝	💰		⭐️	Array  🔗 Simulation  🔗
1244. Design A Leaderboard  🔗  📝	💰		⭐️⭐️	Hash Table  🔗 Design  🔗 Sorting  🔗
1245. Tree Diameter  🔗  📝	💰		⭐️⭐️	Tree  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Graph  🔗 Topological Sort  🔗	1617. Count Subtrees With Max Distance Between Cities  🔗  📝
1246. Palindrome Removal  🔗  📝	💰		⭐️⭐️⭐️	Array  🔗 Dynamic Programming  🔗
1247. Minimum Swaps to Make Strings Equal  🔗  📝	🆓		⭐️⭐️	Math  🔗 String  🔗 Greedy  🔗	1657. Determine if Two Strings Are Close  🔗  📝
1248. Count Number of Nice Subarrays  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗 Math  🔗 Sliding Window  🔗	2261. K Divisible Elements Subarrays  🔗  📝
1249. Minimum Remove to Make Valid Parentheses  🔗  📝	🆓	✅	⭐️⭐️	String  🔗 Stack  🔗	1963. Minimum Number of Swaps to Make the String Balanced  🔗  📝 2116. Check if a Parentheses String Can Be Valid  🔗  📝
1250. Check If It Is a Good Array  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Math  🔗 Number Theory  🔗
1251. Average Selling Price  🔗  📝	💰		⭐️	Database  🔗
1252. Cells with Odd Values in a Matrix  🔗  📝	🆓	✅	⭐️	Array  🔗 Math  🔗 Simulation  🔗
1253. Reconstruct a 2-Row Binary Matrix  🔗  📝	🆓		⭐️⭐️	Array  🔗 Greedy  🔗 Matrix  🔗	1605. Find Valid Matrix Given Row and Column Sums  🔗  📝
1254. Number of Closed Islands  🔗  📝	🆓		⭐️⭐️	Array  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Union Find  🔗 Matrix  🔗
1255. Maximum Score Words Formed by Letters  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 String  🔗 Dynamic Programming  🔗 Backtracking  🔗 Bit Manipulation  🔗 Bitmask  🔗	2151. Maximum Good People Based on Statements  🔗  📝
1256. Encode Number  🔗  📝	💰		⭐️⭐️	Math  🔗 String  🔗 Bit Manipulation  🔗	1017. Convert to Base -2  🔗  📝
1257. Smallest Common Region  🔗  📝	💰		⭐️⭐️	Array  🔗 Hash Table  🔗 String  🔗 Tree  🔗 Depth-First Search  🔗 Breadth-First Search  🔗	235. Lowest Common Ancestor of a Binary Search Tree  🔗  📝 236. Lowest Common Ancestor of a Binary Tree  🔗  📝
1258. Synonymous Sentences  🔗  📝	💰		⭐️⭐️	Array  🔗 Hash Table  🔗 String  🔗 Backtracking  🔗 Union Find  🔗
1259. Handshakes That Don't Cross  🔗  📝	💰		⭐️⭐️⭐️	Math  🔗 Dynamic Programming  🔗
1260. Shift 2D Grid  🔗  📝	🆓		⭐️	Array  🔗 Matrix  🔗 Simulation  🔗
1261. Find Elements in a Contaminated Binary Tree  🔗  📝	🆓		⭐️⭐️	Hash Table  🔗 Tree  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Design  🔗 Binary Tree  🔗
1262. Greatest Sum Divisible by Three  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗 Greedy  🔗
1263. Minimum Moves to Move a Box to Their Target Location  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Breadth-First Search  🔗 Heap (Priority Queue)  🔗 Matrix  🔗
1264. Page Recommendations  🔗  📝	💰		⭐️⭐️	Database  🔗	1892. Page Recommendations II  🔗  📝 1949. Strong Friendship  🔗  📝
1265. Print Immutable Linked List in Reverse  🔗  📝	💰		⭐️⭐️	Linked List  🔗 Two Pointers  🔗 Stack  🔗 Recursion  🔗
1266. Minimum Time Visiting All Points  🔗  📝	🆓	✅	⭐️	Array  🔗 Math  🔗 Geometry  🔗
1267. Count Servers that Communicate  🔗  📝	🆓	✅	⭐️⭐️	Array  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Union Find  🔗 Matrix  🔗 Counting  🔗
1268. Search Suggestions System  🔗  📝	🆓		⭐️⭐️	Array  🔗 String  🔗 Trie  🔗
1269. Number of Ways to Stay in the Same Place After Some Steps  🔗  📝	🆓		⭐️⭐️⭐️	Dynamic Programming  🔗
1270. All People Report to the Given Manager  🔗  📝	💰		⭐️⭐️	Database  🔗
1271. Hexspeak  🔗  📝	💰		⭐️	Math  🔗 String  🔗
1272. Remove Interval  🔗  📝	💰		⭐️⭐️	Array  🔗
1273. Delete Tree Nodes  🔗  📝	💰		⭐️⭐️	Tree  🔗 Depth-First Search  🔗 Breadth-First Search  🔗
1274. Number of Ships in a Rectangle  🔗  📝	💰		⭐️⭐️⭐️	Array  🔗 Divide and Conquer  🔗 Interactive  🔗
1275. Find Winner on a Tic Tac Toe Game  🔗  📝	🆓	✅	⭐️	Array  🔗 Hash Table  🔗 Matrix  🔗 Simulation  🔗
1276. Number of Burgers with No Waste of Ingredients  🔗  📝	🆓		⭐️⭐️	Math  🔗
1277. Count Square Submatrices with All Ones  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗 Matrix  🔗	2087. Minimum Cost Homecoming of a Robot in a Grid  🔗  📝 2088. Count Fertile Pyramids in a Land  🔗  📝
1278. Palindrome Partitioning III  🔗  📝	🆓		⭐️⭐️⭐️	String  🔗 Dynamic Programming  🔗	1745. Palindrome Partitioning IV  🔗  📝
1279. Traffic Light Controlled Intersection  🔗  📝	💰		⭐️	Concurrency  🔗
1280. Students and Examinations  🔗  📝	💰		⭐️	Database  🔗
1281. Subtract the Product and Sum of Digits of an Integer  🔗  📝	🆓	✅	⭐️	Math  🔗
1282. Group the People Given the Group Size They Belong To  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗
1283. Find the Smallest Divisor Given a Threshold  🔗  📝	🆓		⭐️⭐️	Array  🔗 Binary Search  🔗	2064. Minimized Maximum of Products Distributed to Any Store  🔗  📝
1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Bit Manipulation  🔗 Breadth-First Search  🔗 Matrix  🔗	2123. Minimum Operations to Remove Adjacent Ones in Matrix  🔗  📝 2128. Remove All Ones With Row and Column Flips  🔗  📝 2174. Remove All Ones With Row and Column Flips II  🔗  📝
1285. Find the Start and End Number of Continuous Ranges  🔗  📝	💰		⭐️⭐️	Database  🔗	1225. Report Contiguous Dates  🔗  📝 1613. Find the Missing IDs  🔗  📝
1286. Iterator for Combination  🔗  📝	🆓		⭐️⭐️	String  🔗 Backtracking  🔗 Design  🔗 Iterator  🔗
1287. Element Appearing More Than 25% In Sorted Array  🔗  📝	🆓	✅	⭐️	Array  🔗
1288. Remove Covered Intervals  🔗  📝	🆓	✅	⭐️⭐️	Array  🔗 Sorting  🔗
1289. Minimum Falling Path Sum II  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Dynamic Programming  🔗 Matrix  🔗	931. Minimum Falling Path Sum  🔗  📝
1290. Convert Binary Number in a Linked List to Integer  🔗  📝	🆓	✅	⭐️	Linked List  🔗 Math  🔗
1291. Sequential Digits  🔗  📝	🆓		⭐️⭐️	Enumeration  🔗
1292. Maximum Side Length of a Square with Sum Less than or Equal to Threshold  🔗  📝	🆓		⭐️⭐️	Array  🔗 Binary Search  🔗 Matrix  🔗 Prefix Sum  🔗
1293. Shortest Path in a Grid with Obstacles Elimination  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Breadth-First Search  🔗 Matrix  🔗	1730. Shortest Path to Get Food  🔗  📝 2290. Minimum Obstacle Removal to Reach Corner  🔗  📝
1294. Weather Type in Each Country  🔗  📝	💰		⭐️	Database  🔗
1295. Find Numbers with Even Number of Digits  🔗  📝	🆓	✅	⭐️	Array  🔗	2094. Finding 3-Digit Even Numbers  🔗  📝
1296. Divide Array in Sets of K Consecutive Numbers  🔗  📝	🆓	✅	⭐️⭐️	Array  🔗 Hash Table  🔗 Greedy  🔗 Sorting  🔗	659. Split Array into Consecutive Subsequences  🔗  📝 2155. All Divisions With the Highest Score of a Binary Array  🔗  📝
1297. Maximum Number of Occurrences of a Substring  🔗  📝	🆓		⭐️⭐️	Hash Table  🔗 String  🔗 Sliding Window  🔗	2287. Rearrange Characters to Make Target String  🔗  📝
1298. Maximum Candies You Can Get from Boxes  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Breadth-First Search  🔗
1299. Replace Elements with Greatest Element on Right Side  🔗  📝	🆓	✅	⭐️	Array  🔗	2078. Two Furthest Houses With Different Colors  🔗  📝
1300. Sum of Mutated Array Closest to Target  🔗  📝	🆓		⭐️⭐️	Array  🔗 Binary Search  🔗 Sorting  🔗