list-11

Question	Free?	Status	Difficulty	Topics	Similar Questions
1001. Grid Illumination  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Hash Table  🔗	51. N-Queens  🔗  📝
1002. Find Common Characters  🔗  📝	🆓	✅	⭐️	Array  🔗 Hash Table  🔗 String  🔗	350. Intersection of Two Arrays II  🔗  📝
1003. Check If Word Is Valid After Substitutions  🔗  📝	🆓	✅	⭐️⭐️	String  🔗 Stack  🔗	20. Valid Parentheses  🔗  📝
1004. Max Consecutive Ones III  🔗  📝	🆓		⭐️⭐️	Array  🔗 Binary Search  🔗 Sliding Window  🔗 Prefix Sum  🔗	340. Longest Substring with At Most K Distinct Characters  🔗  📝 424. Longest Repeating Character Replacement  🔗  📝 485. Max Consecutive Ones  🔗  📝 487. Max Consecutive Ones II  🔗  📝 2024. Maximize the Confusion of an Exam  🔗  📝
1005. Maximize Sum Of Array After K Negations  🔗  📝	🆓	✅	⭐️	Array  🔗 Greedy  🔗 Sorting  🔗	2099. Find Subsequence of Length K With the Largest Sum  🔗  📝
1006. Clumsy Factorial  🔗  📝	🆓		⭐️⭐️	Math  🔗 Stack  🔗 Simulation  🔗
1007. Minimum Domino Rotations For Equal Row  🔗  📝	🆓	✅	⭐️⭐️	Array  🔗 Greedy  🔗
1008. Construct Binary Search Tree from Preorder Traversal  🔗  📝	🆓		⭐️⭐️	Array  🔗 Stack  🔗 Tree  🔗 Binary Search Tree  🔗 Monotonic Stack  🔗 Binary Tree  🔗
1009. Complement of Base 10 Integer  🔗  📝	🆓	✅	⭐️	Bit Manipulation  🔗
1010. Pairs of Songs With Total Durations Divisible by 60  🔗  📝	🆓	✅	⭐️⭐️	Array  🔗 Hash Table  🔗 Counting  🔗
1011. Capacity To Ship Packages Within D Days  🔗  📝	🆓		⭐️⭐️	Array  🔗 Binary Search  🔗	410. Split Array Largest Sum  🔗  📝 1231. Divide Chocolate  🔗  📝 1891. Cutting Ribbons  🔗  📝 2064. Minimized Maximum of Products Distributed to Any Store  🔗  📝 2279. Maximum Bags With Full Capacity of Rocks  🔗  📝
1012. Numbers With Repeated Digits  🔗  📝	🆓		⭐️⭐️⭐️	Math  🔗 Dynamic Programming  🔗
1013. Partition Array Into Three Parts With Equal Sum  🔗  📝	🆓		⭐️	Array  🔗 Greedy  🔗	1991. Find the Middle Index in Array  🔗  📝
1014. Best Sightseeing Pair  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗
1015. Smallest Integer Divisible by K  🔗  📝	🆓	✅	⭐️⭐️	Hash Table  🔗 Math  🔗
1016. Binary String With Substrings Representing 1 To N  🔗  📝	🆓		⭐️⭐️	String  🔗
1017. Convert to Base -2  🔗  📝	🆓		⭐️⭐️	Math  🔗	1256. Encode Number  🔗  📝
1018. Binary Prefix Divisible By 5  🔗  📝	🆓	✅	⭐️	Array  🔗
1019. Next Greater Node In Linked List  🔗  📝	🆓		⭐️⭐️	Array  🔗 Linked List  🔗 Stack  🔗 Monotonic Stack  🔗
1020. Number of Enclaves  🔗  📝	🆓		⭐️⭐️	Array  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Union Find  🔗 Matrix  🔗
1021. Remove Outermost Parentheses  🔗  📝	🆓	✅	⭐️	String  🔗 Stack  🔗
1022. Sum of Root To Leaf Binary Numbers  🔗  📝	🆓	✅	⭐️	Tree  🔗 Depth-First Search  🔗 Binary Tree  🔗
1023. Camelcase Matching  🔗  📝	🆓		⭐️⭐️	Two Pointers  🔗 String  🔗 Trie  🔗 String Matching  🔗
1024. Video Stitching  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗 Greedy  🔗
1025. Divisor Game  🔗  📝	🆓		⭐️	Math  🔗 Dynamic Programming  🔗 Brainteaser  🔗 Game Theory  🔗
1026. Maximum Difference Between Node and Ancestor  🔗  📝	🆓	✅	⭐️⭐️	Tree  🔗 Depth-First Search  🔗 Binary Tree  🔗
1027. Longest Arithmetic Subsequence  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗 Binary Search  🔗 Dynamic Programming  🔗
1028. Recover a Tree From Preorder Traversal  🔗  📝	🆓		⭐️⭐️⭐️	String  🔗 Tree  🔗 Depth-First Search  🔗 Binary Tree  🔗
1029. Two City Scheduling  🔗  📝	🆓	✅	⭐️⭐️	Array  🔗 Greedy  🔗 Sorting  🔗
1030. Matrix Cells in Distance Order  🔗  📝	🆓	✅	⭐️	Array  🔗 Math  🔗 Geometry  🔗 Sorting  🔗 Matrix  🔗	2194. Cells in a Range on an Excel Sheet  🔗  📝
1031. Maximum Sum of Two Non-Overlapping Subarrays  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗 Sliding Window  🔗
1032. Stream of Characters  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 String  🔗 Design  🔗 Trie  🔗 Data Stream  🔗
1033. Moving Stones Until Consecutive  🔗  📝	🆓		⭐️⭐️	Math  🔗 Brainteaser  🔗
1034. Coloring A Border  🔗  📝	🆓		⭐️⭐️	Array  🔗 Depth-First Search  🔗 Breadth-First Search  🔗 Matrix  🔗	463. Island Perimeter  🔗  📝
1035. Uncrossed Lines  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗	72. Edit Distance  🔗  📝
1036. Escape a Large Maze  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Hash Table  🔗 Depth-First Search  🔗 Breadth-First Search  🔗
1037. Valid Boomerang  🔗  📝	🆓	✅	⭐️	Array  🔗 Math  🔗 Geometry  🔗
1038. Binary Search Tree to Greater Sum Tree  🔗  📝	🆓		⭐️⭐️	Tree  🔗 Depth-First Search  🔗 Binary Search Tree  🔗 Binary Tree  🔗
1039. Minimum Score Triangulation of Polygon  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗
1040. Moving Stones Until Consecutive II  🔗  📝	🆓		⭐️⭐️	Array  🔗 Math  🔗 Two Pointers  🔗 Sorting  🔗	2009. Minimum Number of Operations to Make Array Continuous  🔗  📝
1041. Robot Bounded In Circle  🔗  📝	🆓		⭐️⭐️	Math  🔗 String  🔗 Simulation  🔗
1042. Flower Planting With No Adjacent  🔗  📝	🆓		⭐️⭐️	Depth-First Search  🔗 Breadth-First Search  🔗 Graph  🔗
1043. Partition Array for Maximum Sum  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗	2098. Subsequence of Size K With the Largest Even Sum  🔗  📝
1044. Longest Duplicate Substring  🔗  📝	🆓		⭐️⭐️⭐️	String  🔗 Binary Search  🔗 Sliding Window  🔗 Rolling Hash  🔗 Suffix Array  🔗 Hash Function  🔗
1045. Customers Who Bought All Products  🔗  📝	💰		⭐️⭐️	Database  🔗
1046. Last Stone Weight  🔗  📝	🆓		⭐️	Array  🔗 Heap (Priority Queue)  🔗
1047. Remove All Adjacent Duplicates In String  🔗  📝	🆓		⭐️	String  🔗 Stack  🔗	1209. Remove All Adjacent Duplicates in String II  🔗  📝
1048. Longest String Chain  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗 Two Pointers  🔗 String  🔗 Dynamic Programming  🔗
1049. Last Stone Weight II  🔗  📝	🆓		⭐️⭐️	Array  🔗 Dynamic Programming  🔗	2035. Partition Array Into Two Arrays to Minimize Sum Difference  🔗  📝
1050. Actors and Directors Who Cooperated At Least Three Times  🔗  📝	🆓		⭐️	Database  🔗
1051. Height Checker  🔗  📝	🆓	✅	⭐️	Array  🔗 Sorting  🔗 Counting Sort  🔗
1052. Grumpy Bookstore Owner  🔗  📝	🆓		⭐️⭐️	Array  🔗 Sliding Window  🔗
1053. Previous Permutation With One Swap  🔗  📝	🆓		⭐️⭐️	Array  🔗 Greedy  🔗
1054. Distant Barcodes  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗 Greedy  🔗 Sorting  🔗 Heap (Priority Queue)  🔗 Counting  🔗
1055. Shortest Way to Form String  🔗  📝	💰		⭐️⭐️	String  🔗 Dynamic Programming  🔗 Greedy  🔗	392. Is Subsequence  🔗  📝 792. Number of Matching Subsequences  🔗  📝
1056. Confusing Number  🔗  📝	💰		⭐️	Math  🔗	246. Strobogrammatic Number  🔗  📝 1088. Confusing Number II  🔗  📝
1057. Campus Bikes  🔗  📝	💰		⭐️⭐️	Array  🔗 Greedy  🔗 Sorting  🔗	1066. Campus Bikes II  🔗  📝
1058. Minimize Rounding Error to Meet Target  🔗  📝	💰		⭐️⭐️	Array  🔗 Math  🔗 String  🔗 Greedy  🔗
1059. All Paths from Source Lead to Destination  🔗  📝	💰		⭐️⭐️	Depth-First Search  🔗 Graph  🔗
1060. Missing Element in Sorted Array  🔗  📝	💰		⭐️⭐️	Array  🔗 Binary Search  🔗
1061. Lexicographically Smallest Equivalent String  🔗  📝	💰		⭐️⭐️	String  🔗 Union Find  🔗
1062. Longest Repeating Substring  🔗  📝	💰		⭐️⭐️	String  🔗 Binary Search  🔗 Dynamic Programming  🔗 Rolling Hash  🔗 Suffix Array  🔗 Hash Function  🔗
1063. Number of Valid Subarrays  🔗  📝	💰		⭐️⭐️⭐️	Array  🔗 Stack  🔗 Monotonic Stack  🔗	2110. Number of Smooth Descent Periods of a Stock  🔗  📝
1064. Fixed Point  🔗  📝	💰		⭐️	Array  🔗 Binary Search  🔗
1065. Index Pairs of a String  🔗  📝	💰		⭐️	Array  🔗 String  🔗 Trie  🔗 Sorting  🔗
1066. Campus Bikes II  🔗  📝	💰		⭐️⭐️	Array  🔗 Dynamic Programming  🔗 Backtracking  🔗 Bit Manipulation  🔗 Bitmask  🔗	1057. Campus Bikes  🔗  📝
1067. Digit Count in Range  🔗  📝	💰		⭐️⭐️⭐️	Math  🔗 Dynamic Programming  🔗	233. Number of Digit One  🔗  📝 2310. Sum of Numbers With Units Digit K  🔗  📝
1068. Product Sales Analysis I  🔗  📝	💰		⭐️	Database  🔗	1069. Product Sales Analysis II  🔗  📝 2324. Product Sales Analysis IV  🔗  📝 2329. Product Sales Analysis V  🔗  📝
1069. Product Sales Analysis II  🔗  📝	💰		⭐️	Database  🔗	1068. Product Sales Analysis I  🔗  📝 1070. Product Sales Analysis III  🔗  📝 2324. Product Sales Analysis IV  🔗  📝 2329. Product Sales Analysis V  🔗  📝
1070. Product Sales Analysis III  🔗  📝	💰		⭐️⭐️	Database  🔗	1069. Product Sales Analysis II  🔗  📝 2324. Product Sales Analysis IV  🔗  📝 2329. Product Sales Analysis V  🔗  📝
1071. Greatest Common Divisor of Strings  🔗  📝	🆓		⭐️	Math  🔗 String  🔗	1979. Find Greatest Common Divisor of Array  🔗  📝
1072. Flip Columns For Maximum Number of Equal Rows  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗 Matrix  🔗
1073. Adding Two Negabinary Numbers  🔗  📝	🆓		⭐️⭐️	Array  🔗 Math  🔗
1074. Number of Submatrices That Sum to Target  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Hash Table  🔗 Matrix  🔗 Prefix Sum  🔗
1075. Project Employees I  🔗  📝	💰		⭐️	Database  🔗	1076. Project Employees II  🔗  📝
1076. Project Employees II  🔗  📝	💰		⭐️	Database  🔗	1075. Project Employees I  🔗  📝 1077. Project Employees III  🔗  📝
1077. Project Employees III  🔗  📝	💰		⭐️⭐️	Database  🔗	1076. Project Employees II  🔗  📝
1078. Occurrences After Bigram  🔗  📝	🆓	✅	⭐️	String  🔗
1079. Letter Tile Possibilities  🔗  📝	🆓		⭐️⭐️	String  🔗 Backtracking  🔗
1080. Insufficient Nodes in Root to Leaf Paths  🔗  📝	🆓		⭐️⭐️	Tree  🔗 Depth-First Search  🔗 Binary Tree  🔗	2265. Count Nodes Equal to Average of Subtree  🔗  📝
1081. Smallest Subsequence of Distinct Characters  🔗  📝	🆓	✅	⭐️⭐️	String  🔗 Stack  🔗 Greedy  🔗 Monotonic Stack  🔗	1673. Find the Most Competitive Subsequence  🔗  📝
1082. Sales Analysis I  🔗  📝	💰		⭐️	Database  🔗	1083. Sales Analysis II  🔗  📝
1083. Sales Analysis II  🔗  📝	💰		⭐️	Database  🔗	1082. Sales Analysis I  🔗  📝 1084. Sales Analysis III  🔗  📝
1084. Sales Analysis III  🔗  📝	🆓		⭐️	Database  🔗	1083. Sales Analysis II  🔗  📝
1085. Sum of Digits in the Minimum Number  🔗  📝	💰		⭐️	Array  🔗 Math  🔗	258. Add Digits  🔗  📝
1086. High Five  🔗  📝	💰		⭐️	Array  🔗 Hash Table  🔗 Sorting  🔗
1087. Brace Expansion  🔗  📝	💰		⭐️⭐️	String  🔗 Backtracking  🔗 Breadth-First Search  🔗	394. Decode String  🔗  📝 784. Letter Case Permutation  🔗  📝 1096. Brace Expansion II  🔗  📝
1088. Confusing Number II  🔗  📝	💰		⭐️⭐️⭐️	Math  🔗 Backtracking  🔗	1056. Confusing Number  🔗  📝
1089. Duplicate Zeros  🔗  📝	🆓		⭐️	Array  🔗 Two Pointers  🔗
1090. Largest Values From Labels  🔗  📝	🆓		⭐️⭐️	Array  🔗 Hash Table  🔗 Greedy  🔗 Sorting  🔗 Counting  🔗
1091. Shortest Path in Binary Matrix  🔗  📝	🆓		⭐️⭐️	Array  🔗 Breadth-First Search  🔗 Matrix  🔗
1092. Shortest Common Supersequence   🔗  📝	🆓		⭐️⭐️⭐️	String  🔗 Dynamic Programming  🔗	1143. Longest Common Subsequence  🔗  📝
1093. Statistics from a Large Sample  🔗  📝	🆓		⭐️⭐️	Math  🔗 Two Pointers  🔗 Probability and Statistics  🔗
1094. Car Pooling  🔗  📝	🆓	✅	⭐️⭐️	Array  🔗 Sorting  🔗 Heap (Priority Queue)  🔗 Simulation  🔗 Prefix Sum  🔗	253. Meeting Rooms II  🔗  📝
1095. Find in Mountain Array  🔗  📝	🆓		⭐️⭐️⭐️	Array  🔗 Binary Search  🔗 Interactive  🔗	852. Peak Index in a Mountain Array  🔗  📝 1671. Minimum Number of Removals to Make Mountain Array  🔗  📝 2100. Find Good Days to Rob the Bank  🔗  📝
1096. Brace Expansion II  🔗  📝	🆓		⭐️⭐️⭐️	String  🔗 Backtracking  🔗 Stack  🔗 Breadth-First Search  🔗	1087. Brace Expansion  🔗  📝
1097. Game Play Analysis V  🔗  📝	💰		⭐️⭐️⭐️	Database  🔗	550. Game Play Analysis IV  🔗  📝
1098. Unpopular Books  🔗  📝	💰		⭐️⭐️	Database  🔗
1099. Two Sum Less Than K  🔗  📝	💰		⭐️	Array  🔗 Two Pointers  🔗 Binary Search  🔗 Sorting  🔗	1. Two Sum  🔗  📝 167. Two Sum II - Input Array Is Sorted  🔗  📝 259. 3Sum Smaller  🔗  📝 713. Subarray Product Less Than K  🔗  📝
1100. Find K-Length Substrings With No Repeated Characters  🔗  📝	💰		⭐️⭐️	Hash Table  🔗 String  🔗 Sliding Window  🔗