####	Title	Difficulty	Tags	Date	Solutions
3375	Minimum Operations to Make Array Values Equal to K	Easy	Array, Hash Table	2025-04-09	Go Python
3396	Minimum Number of Operations to Make Elements in Array Distinct	Easy	Array, Hash Table	2025-04-08	Go Python
0416	Partition Equal Subset Sum	Medium	Array, Dynamic Programming	2025-04-07	Go Python
0368	Largest Divisible Subset	Medium	Array, Math, Dynamic Programming, Sorting	2025-04-06	Go Python
0383	Ransom Note	Easy	Hash Table, String, Counting	2025-04-05	Go Python
1123	Lowest Common Ancestor of Deepest Leaves	Medium	Hash Table, Tree, Depth-First Search, Breadth-First Search, Binary Tree	2025-04-04	Go Python
2874	Maximum Value of an Ordered Triplet II	Medium	Array	2025-04-03	Go Python
2873	Maximum Value of an Ordered Triplet I	Easy	Array	2025-04-02	Go Python
2140	Solving Questions With Brainpower	Medium	Array, Dynamic Programming	2025-04-01	Go Python
0290	Word Pattern	Easy	Hash Table, String	2025-03-31	Go Python
0763	Partition Labels	Medium	Hash Table, Two Pointers, String, Greedy	2025-03-30	Go Python
2818	Apply Operations to Maximize Score	Hard	Array, Math, Stack, Greedy, Sorting, Monotonic Stack, Number Theory	2025-03-29	Go Python
2503	Maximum Number of Points From Grid Queries	Hard	Array, Two Pointers, Breadth-First Search, Union Find, Sorting, Heap (Priority Queue), Matrix	2025-03-28	Go Python
2780	Minimum Index of a Valid Split	Medium	Array, Hash Table, Sorting	2025-03-27	Go Python
2033	Minimum Operations to Make a Uni-Value Grid	Medium	Array, Math, Sorting, Matrix	2025-03-26	Go Python
3394	Check if Grid can be Cut into Sections	Medium	Array, Sorting	2025-03-25	Go Python
3169	Count Days Without Meetings	Medium	Array, Sorting	2025-03-24	Go Python
1976	Number of Ways to Arrive at Destination	Medium	Dynamic Programming, Graph, Topological Sort, Shortest Path	2025-03-23	Go Python
2685	Count the Number of Complete Components	Medium	Depth-First Search, Breadth-First Search, Union Find, Graph	2025-03-22	Go Python
2115	Find All Possible Recipes from Given Supplies	Medium	Array, Hash Table, String, Graph, Topological Sort	2025-03-21	Go Python
3108	Minimum Cost Walk in Weighted Graph	Hard	Array, Bit Manipulation, Union Find, Graph	2025-03-20	Go Python
3191	Minimum Operations to Make Binary Array Elements Equal to One I	Medium	Array, Bit Manipulation, Queue, Sliding Window, Prefix Sum	2025-03-19	Go Python
2401	Longest Nice Subarray	Medium	Array, Bit Manipulation, Sliding Window	2025-03-18	Go Python
2206	Divide Array Into Equal Pairs	Easy	Array, Hash Table, Bit Manipulation, Counting	2025-03-17	Go Python
2594	Minimum Time to Repair Cars	Medium	Array, Binary Search	2025-03-16	Go Python
2560	House Robber IV	Medium	Array, Binary Search	2025-03-15	Go Python
2226	Maximum Candies Allocated to K Children	Medium	Array, Binary Search	2025-03-14	Go Python
3356	Zero Array Transformation II	Medium	Array, Binary Search, Prefix Sum	2025-03-13	Go Python
3355	Zero Array Transformation I	Medium	Array, Prefix Sum	2025-03-13	Go Python
2529	Maximum Count of Positive Integer and Negative Integer	Easy	Array, Binary Search, Counting	2025-03-12	Go Python
1358	Number of Substrings Containing All Three Characters	Medium	Hash Table, String, Sliding Window	2025-03-11	Go Python
3306	Count of Substrings Containing Every Vowel and K Consonants II	Medium	Hash Table, String, Sliding Window	2025-03-10	Go Python
3208	Alternating Groups II	Medium	Array, Sliding Window	2025-03-09	Go Python
2379	Minimum Recolors to Get K Consecutive Black Blocks	Easy	String, Sliding Window	2025-03-08	Go Python
2523	Closest Prime Numbers in Range	Medium	Math, Number Theory	2025-03-07	Go Python
2965	Find Missing and Repeated Values	Easy	Array, Hash Table, Math, Matrix	2025-03-06	Go Python
2579	Count Total Number of Colored Cells	Medium	Math	2025-03-05	Go Python
1780	Check if Number is a Sum of Powers of Three	Medium	Math	2025-03-04	Go Python
2161	Partition Array According to Given Pivot	Medium	Array, Two Pointers, Simulation	2025-03-03	Go Python
2570	Merge Two 2D Arrays by Summing Values	Easy	Array, Hash Table, Two Pointers	2025-03-02	Go Python
2460	Apply Operations to an Array	Easy	Array, Two Pointers, Simulation	2025-03-01	Go Python
1092	Shortest Common Supersequence	Hard	String, Dynamic Programming	2025-02-28	Go Python
0873	Length of Longest Fibonacci Subsequence	Medium	Array, Hash Table, Dynamic Programming	2025-02-27	Go Python
1749	Maximum Absolute Sum of Any Subarray	Medium	Array, Dynamic Programming	2025-02-26	Go Python
1524	Number of Sub-arrays With Odd Sum	Medium	Array, Math, Dynamic Programming, Prefix Sum	2025-02-25	Go Python
2467	Most Profitable Path in a Tree	Medium	Array, Tree, Depth-First Search, Breadth-First Search, Graph	2025-02-24	Go Python
0889	Construct Binary Tree from Preorder and Postorder Traversal	Medium	Array, Hash Table, Divide and Conquer, Tree, Binary Tree	2025-02-23	Go Python
0832	Flipping an Image	Easy	Array, Two Pointers, Bit Manipulation, Matrix, Simulation	2025-02-22	Go Python
1261	Find Elements in a Contaminated Binary Tree	Medium	Hash Table, Tree, Depth-First Search, Breadth-First Search, Design, Binary Tree	2025-02-21	Go Python
1980	Find Unique Binary String	Medium	Array, Hash Table, String, Backtracking	2025-02-20	Go Python
1415	The k-th Lexicographical String of All Happy Strings of Length n	Medium	String, Backtracking	2025-02-19	Go Python
2375	Construct Smallest Number From DI String	Medium	String, Backtracking, Stack, Greedy	2025-02-18	Go Python
1079	Letter Tile Possibilities	Medium	Hash Table, String, Backtracking, Counting	2025-02-17	Go Python
1718	Construct the Lexicographically Largest Valid Sequence	Medium	Array, Backtracking	2025-02-16	Go Python
2698	Find the Punishment Number of an Integer	Medium	Math, Backtracking	2025-02-15	Go Python
1352	Product of the Last K Numbers	Medium	Array, Math, Design, Data Stream, Prefix Sum	2025-02-14	Go Python
3066	Minimum Operations to Exceed Threshold Value II	Medium	Array, Heap (Priority Queue), Simulation	2025-02-13	Go Python
2342	Max Sum of a Pair With Equal Sum of Digits	Medium	Array, Hash Table, Sorting, Heap (Priority Queue)	2025-02-12	Go Python
1910	Remove All Occurrences of a Substring	Medium	String, Stack, Simulation	2025-02-11	Go Python
3174	Clear Digits	Easy	String, Stack, Simulation	2025-02-10	Go Python
2364	Count Number of Bad Pairs	Medium	Array, Hash Table, Math, Counting	2025-02-09	Go Python
2349	Design a Number Container System	Medium	Hash Table, Design, Heap (Priority Queue), Ordered Set	2025-02-08	Go Python
3160	Find the Number of Distinct Colors Among the Balls	Medium	Array, Hash Table, Simulation	2025-02-07	Go Python
1726	Tuple with Same Product	Medium	Array, Hash Table, Counting	2025-02-06	Go Python
1790	Check if One String Swap Can Make Strings Equal	Easy	Hash Table, String, Counting	2025-02-05	Go Python
1800	Maximum Ascending Subarray Sum	Easy	Array	2025-02-04	Go Python
3105	Longest Strictly Increasing or Strictly Decreasing Subarray	Easy	Array	2025-02-03	Go Python
1752	Check if Array Is Sorted and Rotated	Easy	Array	2025-02-02	Go Python
3151	Special Array I	Easy	Array	2025-02-01	Go Python
0827	Making A Large Island	Hard	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2025-01-31	Go Python
0785	Is Graph Bipartite?	Medium	Depth-First Search, Breadth-First Search, Union Find, Graph	2025-01-31	Go Python
2493	Divide Nodes Into the Maximum Number of Groups	Hard	Breadth-First Search, Union Find, Graph	2025-01-30	Go Python
0684	Redundant Connection	Medium	Depth-First Search, Breadth-First Search, Union Find, Graph	2025-01-29	Go Python
2658	Maximum Number of Fish in a Grid	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2025-01-28	Go Python
1462	Course Schedule IV	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2025-01-27	Go Python
2127	Maximum Employees to Be Invited to a Meeting	Hard	Depth-First Search, Graph, Topological Sort	2025-01-26	Go Python
2948	Make Lexicographically Smallest Array by Swapping Elements	Medium	Array, Union Find, Sorting	2025-01-25	Go Python
0802	Find Eventual Safe States	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2025-01-24	Go Python
1267	Count Servers that Communicate	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix, Counting	2025-01-23	Go Python
1765	Map of Highest Peak	Medium	Array, Breadth-First Search, Matrix	2025-01-22	Go Python
2017	Grid Game	Medium	Array, Matrix, Prefix Sum	2025-01-21	Go Python
2661	First Completely Painted Row or Column	Medium	Array, Hash Table, Matrix	2025-01-20	Go Python
0407	Trapping Rain Water II	Hard	Array, Breadth-First Search, Heap (Priority Queue), Matrix	2025-01-19	Go Python
1368	Minimum Cost to Make at Least One Valid Path in a Grid	Hard	Array, Breadth-First Search, Graph, Heap (Priority Queue), Matrix, Shortest Path	2025-01-18	Go Python
2683	Neighboring Bitwise XOR	Medium	Array, Bit Manipulation	2025-01-17	Go Python
2425	Bitwise XOR of All Pairings	Medium	Array, Bit Manipulation, Brainteaser	2025-01-16	Go Python
2429	Minimize XOR	Medium	Greedy, Bit Manipulation	2025-01-15	Go Python
2657	Find the Prefix Common Array of Two Arrays	Medium	Array, Hash Table, Bit Manipulation	2025-01-14	Go Python
3223	Minimum Length of String After Operations	Medium	Hash Table, String, Counting	2025-01-13	Go Python
2116	Check if a Parentheses String Can Be Valid	Medium	String, Stack, Greedy	2025-01-12	Go Python
1400	Construct K Palindrome Strings	Medium	Hash Table, String, Greedy, Counting	2025-01-11	Go Python
0916	Word Subsets	Medium	Array, Hash Table, String	2025-01-10	Go Python
2185	Counting Words With a Given Prefix	Easy	Array, String, String Matching	2025-01-09	Go Python
3045	Count Prefix and Suffix Pairs II	Hard	Array, String, Trie, Rolling Hash, String Matching, Hash Function	2025-01-08	Go Python
3042	Count Prefix and Suffix Pairs I	Easy	Array, String, Trie, Rolling Hash, String Matching, Hash Function	2025-01-08	Go Python
1408	String Matching in an Array	Easy	Array, String, String Matching	2025-01-07	Go Python
1769	Minimum Number of Operations to Move All Balls to Each Box	Medium	Array, String, Prefix Sum	2025-01-06	Go Python
2381	Shifting Letters II	Medium	Array, String, Prefix Sum	2025-01-05	Go Python
1930	Unique Length-3 Palindromic Subsequences	Medium	Hash Table, String, Bit Manipulation, Prefix Sum	2025-01-04	Go Python
2270	Number of Ways to Split Array	Medium	Array, Prefix Sum	2025-01-03	Go Python
2559	Count Vowel Strings in Ranges	Medium	Array, String, Prefix Sum	2025-01-02	Go Python
1422	Maximum Score After Splitting a String	Easy	String, Prefix Sum	2025-01-01	Go Python
0983	Minimum Cost For Tickets	Medium	Array, Dynamic Programming	2024-12-31	Go Python
0067	Add Binary	Easy	Math, String, Bit Manipulation, Simulation	2024-12-31	Go Python
2009	Minimum Number of Operations to Make Array Continuous	Hard	Array, Hash Table, Binary Search, Sliding Window	2024-12-31	Go Python
0560	Subarray Sum Equals K	Medium	Array, Hash Table, Prefix Sum	2024-12-30	Go Python
2466	Count Ways To Build Good Strings	Medium	Dynamic Programming	2024-12-30	Go Python
0941	Valid Mountain Array	Easy	Array	2024-12-29	Go Python
0953	Verifying an Alien Dictionary	Easy	Array, Hash Table, String	2024-12-29	Go Python
0689	Maximum Sum of 3 Non-Overlapping Subarrays	Hard	Array, Dynamic Programming	2024-12-28	Go Python
1014	Best Sightseeing Pair	Medium	Array, Dynamic Programming	2024-12-27	Go Python
0494	Target Sum	Medium	Array, Dynamic Programming, Backtracking	2024-12-26	Go Python
0617	Merge Two Binary Trees	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-12-26	Go Python
0515	Find Largest Value in Each Tree Row	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-12-25	Go Python
3203	Find Minimum Diameter After Merging Two Trees	Hard	Tree, Depth-First Search, Breadth-First Search, Graph	2024-12-24	Go Python
0108	Convert Sorted Array to Binary Search Tree	Easy	Array, Divide and Conquer, Tree, Binary Search Tree, Binary Tree	2024-12-24	Go Python
0257	Binary Tree Paths	Easy	String, Backtracking, Tree, Depth-First Search, Binary Tree	2024-12-23	Go Python
2940	Find Building Where Alice and Bob Can Meet	Hard	Array, Binary Search, Stack, Binary Indexed Tree, Segment Tree, Heap (Priority Queue), Monotonic Stack	2024-12-23	Go Python
0461	Hamming Distance	Easy	Bit Manipulation	2024-12-22	Go Python
0231	Power of Two	Easy	Math, Bit Manipulation, Recursion	2024-12-21	Go Python
2872	Maximum Number of K-Divisible Components	Hard	Tree, Depth-First Search	2024-12-21	Go Python
1074	Number of Submatrices That Sum to Target	Hard	Array, Hash Table, Matrix, Prefix Sum	2024-12-20	Go Python
0111	Minimum Depth of Binary Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-12-20	Go Python
0605	Can Place Flowers	Easy	Array, Greedy	2024-12-19	Go Python
1591	Strange Printer II	Hard	Array, Graph, Topological Sort, Matrix	2024-12-19	Go Python
1475	Final Prices With a Special Discount in a Shop	Easy	Array, Stack, Monotonic Stack	2024-12-18	Go Python
2448	Minimum Cost to Make Array Equal	Hard	Array, Binary Search, Greedy, Sorting, Prefix Sum	2024-12-17	Go Python
0242	Valid Anagram	Easy	Hash Table, String, Sorting	2024-12-17	Go Python
0895	Maximum Frequency Stack	Hard	Hash Table, Stack, Design, Ordered Set	2024-12-16	Go Python
3264	Final Array State After K Multiplication Operations I	Easy	Array, Math, Heap (Priority Queue), Simulation	2024-12-16	Go Python
1782	Count Pairs Of Nodes	Hard	Array, Two Pointers, Binary Search, Graph, Sorting	2024-12-15	Go Python
0342	Power of Four	Easy	Math, Bit Manipulation, Recursion	2024-12-15	Go Python
1095	Find in Mountain Array	Hard	Binary Search, Recursion, Two Pointers, Dynamic Programming, Greedy, Memoization, Backtracking	2024-12-14	Go Python
0035	Search Insert Position	Easy	Binary Search	2024-12-14	Go Python
0374	Guess Number Higher or Lower	Easy	Binary Search	2024-12-13	Go Python
0460	LFU Cache	Hard	Hash Table, Linked List, Design, Doubly-Linked List	2024-12-13	Go Python
2558	Take Gifts From the Richest Pile	Easy	Array, Heap (Priority Queue), Simulation	2024-12-12	Go Python
1675	Minimize Deviation in Array	Hard	Array, Greedy, Heap (Priority Queue), Ordered Set	2024-12-11	Go Python
0278	First Bad Version	Easy	Binary Search, Interactive	2024-12-11	Go Python
2251	Number of Flowers in Full Bloom	Hard	Array, Hash Table, Binary Search, Sorting, Prefix Sum, Ordered Set	2024-12-10	Go Python
0541	Reverse String II	Easy	Two Pointers, String	2024-12-10	Go Python
1857	Largest Color Value in a Directed Graph	Hard	Hash Table, Dynamic Programming, Graph, Topological Sort, Memoization, Counting	2024-12-09	Go Python
0557	Reverse Words in a String III	Easy	Two Pointers, String	2024-12-09	Go Python
1553	Minimum Number of Days to Eat N Oranges	Hard	Dynamic Programming, Memoization	2024-12-08	Go Python
1047	Remove All Adjacent Duplicates In String	Easy	String, Stack	2024-12-08	Go Python
2421	Number of Good Paths	Hard	Array, Hash Table, Tree, Union Find, Graph, Sorting	2024-12-07	Go Python
0389	Find the Difference	Easy	Hash Table, String, Bit Manipulation, Sorting	2024-12-07	Go Python
1489	Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree	Hard	Union Find, Graph, Sorting, Minimum Spanning Tree, Strongly Connected Component	2024-12-06	Go Python
1295	Find Numbers with Even Number of Digits	Easy	Array, Math	2024-12-06	Go Python
0472	Concatenated Words	Hard	Array, String, Dynamic Programming, Depth-First Search, Trie	2024-12-05	Go Python
0069	Sqrt(x)	Easy	Math, Binary Search	2024-12-05	Go Python
0118	Pascal's Triangle	Easy	Array, Dynamic Programming	2024-12-04	Go Python
1799	Maximize Score After N Operations	Hard	Array, Math, Dynamic Programming, Backtracking, Bit Manipulation, Number Theory, Bitmask	2024-12-04	Go Python
1964	Find the Longest Valid Obstacle Course at Each Position	Hard	Array, Binary Search, Binary Indexed Tree	2024-12-03	Go Python
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	Easy	Two Pointers, String, String Matching	2024-12-02	Go Python
3244	Shortest Distance After Road Addition Queries II	Hard	Array, Greedy, Graph, Ordered Set	2024-12-01	Go Python
2097	Valid Arrangement of Pairs	Hard	Depth-First Search, Graph, Eulerian Circuit	2024-11-30	Go Python
2577	Minimum Time to Visit a Cell In a Grid	Hard	Array, Breadth-First Search, Graph, Heap (Priority Queue), Matrix, Shortest Path	2024-11-29	Go Python
2290	Minimum Obstacle Removal to Reach Corner	Hard	Array, Breadth-First Search, Graph, Heap (Priority Queue), Matrix, Shortest Path	2024-11-28	Go Python
1346	Check If N and Its Double Exist	Easy	Array, Hash Table, Two Pointers, Binary Search, Sorting	2024-11-27	Go Python
0066	Plus One	Easy	Array, Math	2024-11-26	Go Python
0773	Sliding Puzzle	Hard	Array, Breadth-First Search, Matrix	2024-11-25	Go Python
0101	Symmetric Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-11-24	Go Python
1235	Maximum Profit in Job Scheduling	Hard	Array, Binary Search, Dynamic Programming, Sorting	2024-11-23	Go Python
1751	Maximum Number of Events That Can Be Attended II	Hard	Array, Binary Search, Dynamic Programming, Sorting	2024-11-22	Go Python
0940	Distinct Subsequences II	Hard	String, Dynamic Programming	2024-11-21	Go Python
2218	Maximum Value of K Coins From Piles	Hard	Array, Dynamic Programming, Prefix Sum	2024-11-20	Go Python
0920	Number of Music Playlists	Hard	Math, Dynamic Programming, Combinatorics	2024-11-19	Go Python
1652	Defuse the Bomb	Easy	Array, Sliding Window	2024-11-18	Go Python
0258	Add Digits	Easy	Math, Simulation, Number Theory	2024-11-17	Go Python
0283	Move Zeroes	Easy	Array, Two Pointers	2024-11-16	Go Python
1639	Number of Ways to Form a Target String Given a Dictionary	Hard	Array, String, Dynamic Programming	2024-11-15	Go Python
1547	Minimum Cost to Cut a Stick	Hard	Array, Dynamic Programming, Sorting	2024-11-14	Go Python
2742	Painting the Walls	Hard	Array, Dynamic Programming	2024-11-13	Go Python
1494	Parallel Courses II	Hard	Dynamic Programming, Bit Manipulation, Graph, Bitmask	2024-11-12	Go Python
0862	Shortest Subarray with Sum at Least K	Hard	Array, Binary Search, Queue, Sliding Window, Heap (Priority Queue), Prefix Sum, Monotonic Queue	2024-11-11	Go Python
0643	Maximum Average Subarray I	Easy	Array, Sliding Window	2024-11-10	Go Python
0929	Unique Email Addresses	Easy	Array, Hash Table, String	2024-11-09	Go Python
2050	Parallel Courses III	Hard	Array, Dynamic Programming, Graph, Topological Sort	2024-11-08	Go Python
1269	Number of Ways to Stay in the Same Place After Some Steps	Hard	Dynamic Programming	2024-11-07	Go Python
1531	String Compression II	Hard	String, Dynamic Programming	2024-11-06	Go Python
0203	Remove Linked List Elements	Easy	Linked List, Recursion	2024-11-05	Go Python
1872	Stone Game VIII	Hard	Array, Math, Dynamic Programming, Prefix Sum, Game Theory	2024-11-04	Go Python
0796	Rotate String	Easy	String, String Matching	2024-11-03	Go Python
2490	Circular Sentence	Easy	String	2024-11-02	Go Python
1957	Delete Characters to Make Fancy String	Easy	String	2024-11-01	Go Python
2463	Minimum Total Distance Traveled	Hard	Array, Dynamic Programming, Sorting	2024-10-31	Go Python
1671	Minimum Number of Removals to Make Mountain Array	Hard	Array, Binary Search, Dynamic Programming, Greedy	2024-10-30	Go Python
1563	Stone Game V	Hard	Array, Math, Dynamic Programming, Game Theory	2024-10-29	Go Python
1510	Stone Game IV	Hard	Math, Dynamic Programming, Game Theory	2024-10-28	Go Python
1406	Stone Game III	Hard	Array, Math, Dynamic Programming, Game Theory	2024-10-27	Go Python
2458	Height of Binary Tree After Subtree Removal Queries	Hard	Array, Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-10-26	Go Python
1359	Count All Valid Pickup and Delivery Options	Hard	Math, Dynamic Programming, Combinatorics	2024-10-25	Go Python
0446	Arithmetic Slices II - Subsequence	Hard	Array, Dynamic Programming	2024-10-24	Go Python
1335	Minimum Difficulty of a Job Schedule	Hard	Array, Dynamic Programming	2024-10-23	Go Python
0629	K Inverse Pairs Array	Hard	Dynamic Programming	2024-10-22	Go Python
3235	Check if the Rectangle Corner Is Reachable	Hard	Array, Math, Depth-First Search, Breadth-First Search, Union Find, Geometry	2024-10-21	Go Python
1106	Parsing A Boolean Expression	Hard	String, Stack, Recursion	2024-10-20	Go Python
2147	Number of Ways to Divide a Long Corridor	Hard	Math, String, Dynamic Programming	2024-10-19	Go Python
0174	Dungeon Game	Hard	Array, Dynamic Programming, Matrix	2024-10-18	Go Python
0412	Fizz Buzz	Easy	Math, String, Simulation	2024-10-17	Go Python
1463	Cherry Pickup II	Hard	Array, Dynamic Programming, Matrix	2024-10-16	Go Python
0741	Cherry Pickup	Hard	Array, Dynamic Programming, Matrix	2024-10-15	Go Python
1793	Maximum Score of a Good Subarray	Hard	Array, Two Pointers, Binary Search, Stack, Monotonic Stack	2024-10-14	Go Python
0632	Smallest Range Covering Elements from K Lists	Hard	Array, Hash Table, Greedy, Sliding Window, Sorting, Heap (Priority Queue)	2024-10-13	Go Python
0352	Data Stream as Disjoint Intervals	Hard	Binary Search, Design, Ordered Set	2024-10-12	Go Python
2306	Naming a Company	Hard	Array, Hash Table, String, Bit Manipulation, Enumeration	2024-10-11	Go Python
2402	Meeting Rooms III	Hard	Array, Hash Table, Sorting, Heap (Priority Queue), Simulation	2024-10-10	Go Python
1611	Minimum One Bit Operations to Make Integers Zero	Hard	Dynamic Programming, Bit Manipulation, Memoization	2024-10-09	Go Python
0805	Split Array With Same Average	Hard	Array, Math, Dynamic Programming, Bit Manipulation, Bitmask	2024-10-08	Go Python
2696	Minimum String Length After Removing Substrings	Easy	String, Stack, Simulation	2024-10-07	Go Python
0115	Distinct Subsequences	Hard	String, Dynamic Programming	2024-10-06	Go Python
0068	Text Justification	Hard	Array, String, Simulation	2024-10-05	Go Python
0410	Split Array Largest Sum	Hard	Array, Binary Search, Dynamic Programming, Greedy, Prefix Sum	2024-10-04	Go Python
2183	Count Array Pairs Divisible by K	Hard	Array, Math, Number Theory	2024-10-03	Go Python
1331	Rank Transform of an Array	Easy	Array, Hash Table, Sorting	2024-10-02	Go Python
0312	Burst Balloons	Hard	Array, Dynamic Programming	2024-10-01	Go Python
1851	Minimum Interval to Include Each Query	Hard	Array, Binary Search, Line Sweep, Sorting, Heap (Priority Queue)	2024-09-30	Go Python
0879	Profitable Schemes	Hard	Array, Dynamic Programming	2024-09-29	Go Python
1220	Count Vowels Permutation	Hard	Dynamic Programming	2024-09-28	Go Python
0732	My Calendar III	Hard	Binary Search, Design, Segment Tree, Prefix Sum, Ordered Set	2024-09-27	Go Python
0691	Stickers to Spell Word	Hard	Array, String, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask	2024-09-26	Go Python
2416	Sum of Prefix Scores of Strings	Hard	Array, String, Trie, Counting	2024-09-25	Go Python
3093	Longest Common Suffix Queries	Hard	Array, String, Trie	2024-09-24	Go Python
1643	Kth Smallest Instructions	Hard	Array, Math, Dynamic Programming, Combinatorics	2024-09-23	Go Python
0440	K-th Smallest in Lexicographical Order	Hard	Trie	2024-09-22	Go Python
0028	Find the Index of the First Occurrence in a String	Easy	Two Pointers, String, String Matching	2024-09-21	Go Python
0214	Shortest Palindrome	Hard	String, Rolling Hash, String Matching, Hash Function	2024-09-20	Go Python
1866	Number of Ways to Rearrange Sticks With K Sticks Visible	Hard	Math, Dynamic Programming, Combinatorics	2024-09-19	Go Python
2328	Number of Increasing Paths in a Grid	Hard	Array, Dynamic Programming, Depth-First Search, Breadth-First Search, Graph, Topological Sort, Memoization, Matrix	2024-09-18	Go Python
0884	Uncommon Words from Two Sentences	Easy	Hash Table, String, Counting	2024-09-17	Go Python
0329	Longest Increasing Path in a Matrix	Hard	Array, Dynamic Programming, Depth-First Search, Breadth-First Search, Graph, Topological Sort, Memoization, Matrix	2024-09-16	Go Python
0126	Word Ladder II	Hard	Hash Table, String, Backtracking, Breadth-First Search	2024-09-15	Go Python
0127	Word Ladder	Hard	Hash Table, String, Breadth-First Search	2024-09-14	Go Python
0297	Serialize and Deserialize Binary Tree	Hard	String, Tree, Depth-First Search, Breadth-First Search, Design, Binary Tree	2024-09-13	Go Python
1684	Count the Number of Consistent Strings	Easy	Array, Hash Table, String, Bit Manipulation, Counting	2024-09-12	Go Python
2220	Minimum Bit Flips to Convert Number	Easy	Bit Manipulation	2024-09-11	Go Python
0124	Binary Tree Maximum Path Sum	Hard	Dynamic Programming, Tree, Depth-First Search, Binary Tree	2024-09-10	Go Python
0480	Sliding Window Median	Hard	Array, Hash Table, Sliding Window, Heap (Priority Queue)	2024-09-09	Go Python
0572	Subtree of Another Tree	Easy	Tree, Depth-First Search, String Matching, Binary Tree, Hash Function	2024-09-08	Go Python
1425	Constrained Subsequence Sum	Hard	Array, Dynamic Programming, Queue, Sliding Window, Heap (Priority Queue), Monotonic Queue	2024-09-07	Go Python
1340	Jump Game V	Hard	Array, Dynamic Programming, Sorting	2024-09-06	Go Python
1345	Jump Game IV	Hard	Array, Hash Table, Breadth-First Search	2024-09-05	Go Python
2106	Maximum Fruits Harvested After at Most K Steps	Hard	Array, Binary Search, Sliding Window, Prefix Sum	2024-09-04	Go Python
1945	Sum of Digits of String After Convert	Easy	String, Simulation	2024-09-03	Go Python
1383	Maximum Performance of a Team	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-09-02	Go Python
2022	Convert 1D Array Into 2D Array	Easy	Array, Matrix, Simulation	2024-09-01	Go Python
0149	Max Points on a Line	Hard	Array, Hash Table, Math, Geometry	2024-08-31	Go Python
2699	Modify Graph Edge Weights	Hard	Graph, Heap (Priority Queue), Shortest Path	2024-08-30	Go Python
0014	Longest Common Prefix	Easy	String, Trie	2024-08-29	Go Python
0052	N-Queens II	Hard	Backtracking	2024-08-28	Go Python
0030	Substring with Concatenation of All Words	Hard	Hash Table, String, Sliding Window	2024-08-27	Go Python
0590	N-ary Tree Postorder Traversal	Easy	Stack, Tree, Depth-First Search	2024-08-26	Go Python
0145	Binary Tree Postorder Traversal	Easy	Stack, Tree, Depth-First Search, Binary Tree	2024-08-25	Go Python
0564	Find the Closest Palindrome	Hard	Math, String	2024-08-24	Go Python
0060	Permutation Sequence	Hard	Math, Recursion	2024-08-23	Go Python
0476	Number Complement	Easy	Bit Manipulation	2024-08-22	Go Python
0664	Strange Printer	Hard	String, Dynamic Programming	2024-08-21	Go Python
0051	N-Queens	Hard	Array, Backtracking	2024-08-20	Go Python
0013	Roman to Integer	Easy	Hash Table, Math, String	2024-08-19	Go Python
0136	Single Number	Easy	Array, Bit Manipulation	2024-08-18	Go Python
0367	Valid Perfect Square	Easy	Math, Binary Search	2024-08-17	Go Python
0745	Prefix and Suffix Search	Hard	Array, Hash Table, String, Design, Trie	2024-08-16	Go Python
0860	Lemonade Change	Easy	Array, Greedy	2024-08-15	Go Python
0719	Find K-th Smallest Pair Distance	Hard	Array, Two Pointers, Binary Search, Sorting	2024-08-14	Go Python
0733	Flood Fill	Easy	Array, Depth-First Search, Breadth-First Search, Matrix	2024-08-13	Go Python
0778	Swim in Rising Water	Hard	Array, Binary Search, Depth-First Search, Breadth-First Search, Union Find, Heap (Priority Queue), Matrix	2024-08-12	Go Python
1568	Minimum Number of Days to Disconnect Island	Hard	Array, Depth-First Search, Breadth-First Search, Matrix, Strongly Connected Component	2024-08-11	Go
0009	Palindrome Number	Easy	Math	2024-08-10	Go Python
2129	Capitalize the Title	Easy	String	2024-08-09	Go
0724	Find Pivot Index	Easy	Array, Prefix Sum	2024-08-08	Go Python
0303	Range Sum Query - Immutable	Easy	Array, Design, Prefix Sum	2024-08-07	Go
0084	Largest Rectangle in Histogram	Hard	Array, Stack, Monotonic Stack	2024-08-06	Go
2053	Kth Distinct String in an Array	Easy	Array, Hash Table, String, Counting	2024-08-05	Go
1827	Minimum Operations to Make the Array Increasing	Easy	Array, Greedy	2024-08-04	Go
1460	Make Two Arrays Equal by Reversing Subarrays	Easy	Array, Hash Table, Sorting	2024-08-03	Go
0315	Count of Smaller Numbers After Self	Hard	Array, Binary Search, Divide and Conquer, Binary Indexed Tree, Segment Tree, Merge Sort, Ordered Set	2024-08-02	Go
3232	Find if Digit Game Can Be Won	Easy	Array, Math	2024-08-01	Go
2678	Number of Senior Citizens	Easy	Array, String	2024-08-01	Go
1105	Filling Bookcase Shelves	Medium	Array, Dynamic Programming	2024-07-31	Go
1653	Minimum Deletions to Make String Balanced	Medium	String, Dynamic Programming, Stack	2024-07-30	Go
1395	Count Number of Teams	Medium	Array, Dynamic Programming, Binary Indexed Tree	2024-07-29	Go
2045	Second Minimum Time to Reach Destination	Hard	Breadth-First Search, Graph, Shortest Path	2024-07-28	Go
2976	Minimum Cost to Convert String I	Medium	Array, String, Graph, Shortest Path	2024-07-27	Go
1334	Find the City With the Smallest Number of Neighbors at a Threshold Distance	Medium	Dynamic Programming, Graph, Shortest Path	2024-07-26	Go
0123	Best Time to Buy and Sell Stock III	Hard	Array, Dynamic Programming	2024-07-25	Go
2191	Sort the Jumbled Numbers	Medium	Array, Sorting	2024-07-24	Go
1636	Sort Array by Increasing Frequency	Easy	Array, Hash Table, Sorting	2024-07-23	Go
2418	Sort the People	Easy	Array, Hash Table, String, Sorting	2024-07-22	Go
2392	Build a Matrix With Conditions	Hard	Array, Graph, Topological Sort, Matrix	2024-07-21	Go
1605	Find Valid Matrix Given Row and Column Sums	Medium	Array, Greedy, Matrix	2024-07-20	Go
1380	Lucky Numbers in a Matrix	Easy	Array, Matrix	2024-07-19	Go
1530	Number of Good Leaf Nodes Pairs	Medium	Tree, Depth-First Search, Binary Tree	2024-07-18	Go
1110	Delete Nodes And Return Forest	Medium	Array, Hash Table, Tree, Depth-First Search, Binary Tree	2024-07-17	Go
2096	Step-By-Step Directions From a Binary Tree Node to Another	Medium	String, Tree, Depth-First Search, Binary Tree	2024-07-16	Go
2196	Create Binary Tree From Descriptions	Medium	Array, Hash Table, Tree, Binary Tree	2024-07-15	Go
0726	Number of Atoms	Hard	Hash Table, String, Stack, Sorting	2024-07-14	Go
2751	Robot Collisions	Hard	Array, Stack, Sorting, Simulation	2024-07-13	Go
1717	Maximum Score From Removing Substrings	Medium	String, Stack, Greedy	2024-07-12	Go
1190	Reverse Substrings Between Each Pair of Parentheses	Medium	String, Stack	2024-07-11	Go
1598	Crawler Log Folder	Easy	Array, String, Stack	2024-07-10	Go
1701	Average Waiting Time	Medium	Array, Simulation	2024-07-09	Go
1823	Find the Winner of the Circular Game	Medium	Array, Math, Recursion, Queue, Simulation	2024-07-08	Go
1518	Water Bottles	Easy	Math, Simulation	2024-07-07	Go
2582	Pass the Pillow	Easy	Math, Simulation	2024-07-06	Go
2058	Find the Minimum and Maximum Number of Nodes Between Critical Points	Medium	Linked List	2024-07-05	Go
2181	Merge Nodes in Between Zeros	Medium	Linked List, Simulation	2024-07-04	Go
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	Medium	Array, Greedy, Sorting	2024-07-03	Go
2215	Find the Difference of Two Arrays	Easy	Array, Hash Table	2024-07-02	Go
1550	Three Consecutive Odds	Easy	Array	2024-07-01	Go
1579	Remove Max Number of Edges to Keep Graph Fully Traversable	Hard	Union Find, Graph	2024-06-30	Go
2192	All Ancestors of a Node in a Directed Acyclic Graph	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2024-06-29	Go
2285	Maximum Total Importance of Roads	Medium	Greedy, Graph, Sorting, Heap (Priority Queue)	2024-06-28	Go
1791	Find Center of Star Graph	Easy	Graph	2024-06-27	Go
1382	Balance a Binary Search Tree	Medium	Divide and Conquer, Greedy, Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-06-26	Go
1038	Binary Search Tree to Greater Sum Tree	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-06-25	Go
0995	Minimum Number of K Consecutive Bit Flips	Hard	Array, Bit Manipulation, Queue, Sliding Window, Prefix Sum	2024-06-24	Go
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	Medium	Array, Queue, Sliding Window, Heap (Priority Queue), Ordered Set, Monotonic Queue	2024-06-23	Go
1248	Count Number of Nice Subarrays	Medium	Array, Hash Table, Math, Sliding Window	2024-06-22	Go
1052	Grumpy Bookstore Owner	Medium	Array, Sliding Window	2024-06-21	Go
1552	Magnetic Force Between Two Balls	Medium	Array, Binary Search, Sorting	2024-06-20	Go
1482	Minimum Number of Days to Make m Bouquets	Medium	Array, Binary Search	2024-06-19	Go
0826	Most Profit Assigning Work	Medium	Array, Two Pointers, Binary Search, Greedy, Sorting	2024-06-18	Go
0633	Sum of Square Numbers	Medium	Math, Two Pointers, Binary Search	2024-06-17	Go
0330	Patching Array	Hard	Array, Greedy	2024-06-16	Go
0502	IPO	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-06-15	Go
0945	Minimum Increment to Make Array Unique	Medium	Array, Greedy, Sorting, Counting	2024-06-14	Go
2037	Minimum Number of Moves to Seat Everyone	Easy	Array, Greedy, Sorting	2024-06-13	Go
0148	Sort List	Medium	Linked List, Two Pointers, Divide and Conquer, Sorting, Merge Sort	2024-06-12	Go
1122	Relative Sort Array	Easy	Array, Hash Table, Sorting, Counting Sort	2024-06-11	Go
1051	Height Checker	Easy	Array, Sorting, Counting Sort	2024-06-10	Go
0974	Subarray Sums Divisible by K	Medium	Array, Hash Table, Prefix Sum	2024-06-09	Go Python
0523	Continuous Subarray Sum	Medium	Array, Hash Table, Math, Prefix Sum	2024-06-08	Go
0648	Replace Words	Medium	Array, Hash Table, String, Trie	2024-06-07	Go
0846	Hand of Straights	Medium	Array, Hash Table, Greedy, Sorting	2024-06-06	Go
0350	Intersection of Two Arrays II	Easy	Array, Hash Table, Two Pointers, Binary Search, Sorting	2024-06-05	Go
1002	Find Common Characters	Easy	Array, Hash Table, String	2024-06-05	Go
0409	Longest Palindrome	Easy	Hash Table, String, Greedy	2024-06-04	Go
0392	Is Subsequence	Easy	Two Pointers, String, Dynamic Programming	2024-06-03	Go
2486	Append Characters to String to Make Subsequence	Medium	Two Pointers, String, Greedy	2024-06-03	Go
0344	Reverse String	Easy	Two Pointers, String	2024-06-02	Go
3110	Score of a String	Easy	String	2024-06-01	Go
0260	Single Number III	Medium	Array, Bit Manipulation	2024-05-31	Go
1442	Count Triplets That Can Form Two Arrays of Equal XOR	Medium	Array, Hash Table, Math, Bit Manipulation, Prefix Sum	2024-05-30	Go
1404	Number of Steps to Reduce a Number in Binary Representation to One	Medium	String, Bit Manipulation	2024-05-29	Go
1208	Get Equal Substrings Within Budget	Medium	String, Binary Search, Sliding Window, Prefix Sum	2024-05-28	Go
1608	Special Array With X Elements Greater Than or Equal X	Easy	Array, Binary Search, Sorting	2024-05-27	Go
0552	Student Attendance Record II	Hard	Dynamic Programming	2024-05-26	Go
0551	Student Attendance Record I	Easy	String	2024-05-26	Go
0140	Word Break II	Hard	Array, Hash Table, String, Dynamic Programming, Backtracking, Trie, Memoization	2024-05-25	Go
0139	Word Break	Medium	Array, Hash Table, String, Dynamic Programming, Trie, Memoization	2024-05-25	Go
1255	Maximum Score Words Formed by Letters	Hard	Array, String, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask	2024-05-24	Go
2597	The Number of Beautiful Subsets	Medium	Array, Dynamic Programming, Backtracking, Sorting	2024-05-23	Go
0131	Palindrome Partitioning	Medium	String, Dynamic Programming, Backtracking	2024-05-22	Go
1982	Find Array Given Subset Sums	Hard	Array, Divide and Conquer	2024-05-21	Go
1863	Sum of All Subset XOR Totals	Easy	Array, Math, Backtracking, Bit Manipulation, Combinatorics, Enumeration	2024-05-20	Go Python
3068	Find the Maximum Sum of Node Values	Hard	Array, Dynamic Programming, Greedy, Bit Manipulation, Tree, Sorting	2024-05-19	Go
0979	Distribute Coins in Binary Tree	Medium	Tree, Depth-First Search, Binary Tree	2024-05-18	Go
1325	Delete Leaves With a Given Value	Medium	Tree, Depth-First Search, Binary Tree	2024-05-17	Go
2331	Evaluate Boolean Binary Tree	Easy	Tree, Depth-First Search, Binary Tree	2024-05-16	Go
2812	Find the Safest Path in a Grid	Medium	Array, Binary Search, Breadth-First Search, Union Find, Matrix	2024-05-15	Go
1219	Path with Maximum Gold	Medium	Array, Backtracking, Matrix	2024-05-14	Go
0861	Score After Flipping Matrix	Medium	Array, Greedy, Bit Manipulation, Matrix	2024-05-13	Go
2373	Largest Local Values in a Matrix	Easy	Array, Matrix	2024-05-12	Go
0857	Minimum Cost to Hire K Workers	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-05-11	Go
0786	K-th Smallest Prime Fraction	Medium	Array, Two Pointers, Binary Search, Sorting, Heap (Priority Queue)	2024-05-10	Go
3075	Maximize Happiness of Selected Children	Medium	Array, Greedy, Sorting	2024-05-09	Go
0506	Relative Ranks	Easy	Array, Sorting, Heap (Priority Queue)	2024-05-08	Go
2816	Double a Number Represented as a Linked List	Medium	Linked List, Math, Stack	2024-05-07	Go
2487	Remove Nodes From Linked List	Medium	Linked List, Stack, Recursion, Monotonic Stack	2024-05-06	Go
0237	Delete Node in a Linked List	Medium	Linked List	2024-05-05	Go
0881	Boats to Save People	Medium	Array, Two Pointers, Greedy, Sorting	2024-05-04	Go
0165	Compare Version Numbers	Medium	Two Pointers, String	2024-05-03	Go
2441	Largest Positive Integer That Exists With Its Negative	Easy	Array, Hash Table, Two Pointers, Sorting	2024-05-02	Go
2000	Reverse Prefix of Word	Easy	Two Pointers, String	2024-05-01	Go
1915	Number of Wonderful Substrings	Medium	Hash Table, String, Bit Manipulation, Prefix Sum	2024-04-30	Go
2997	Minimum Number of Operations to Make Array XOR Equal to K	Medium	Array, Bit Manipulation	2024-04-29	Go
0834	Sum of Distances in Tree	Hard	Dynamic Programming, Tree, Depth-First Search, Graph	2024-04-28	Go
0514	Freedom Trail	Hard	String, Dynamic Programming, Depth-First Search, Breadth-First Search	2024-04-27	Go
1289	Minimum Falling Path Sum II	Hard	Array, Dynamic Programming, Matrix	2024-04-26	Go
2370	Longest Ideal Subsequence	Medium	Hash Table, String, Dynamic Programming	2024-04-25	Go
1137	N-th Tribonacci Number	Easy	Math, Dynamic Programming, Memoization	2024-04-24	Go
0310	Minimum Height Trees	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2024-04-23	Go
0752	Open the Lock	Medium	Array, Hash Table, String, Breadth-First Search	2024-04-22	Go
1971	Find if Path Exists in Graph	Easy	Depth-First Search, Breadth-First Search, Union Find, Graph	2024-04-21	Go
1992	Find All Groups of Farmland	Medium	Array, Depth-First Search, Breadth-First Search, Matrix	2024-04-20	Go
0220	Contains Duplicate III	Hard	Array, Sliding Window, Sorting, Bucket Sort, Ordered Set	2024-04-19	Go
0463	Island Perimeter	Easy	Array, Depth-First Search, Breadth-First Search, Matrix	2024-04-18	Go
0988	Smallest String Starting From Leaf	Medium	String, Tree, Depth-First Search, Binary Tree	2024-04-17	Go
0623	Add One Row to Tree	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-04-16	Go
0129	Sum Root to Leaf Numbers	Medium	Tree, Depth-First Search, Binary Tree	2024-04-15	Go
0404	Sum of Left Leaves	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-04-14	Go
0085	Maximal Rectangle	Hard	Array, Dynamic Programming, Stack, Matrix, Monotonic Stack	2024-04-13	Go
0221	Maximal Square	Medium	Array, Dynamic Programming, Matrix	2024-04-13	Go
0219	Contains Duplicate II	Easy	Array, Hash Table, Sliding Window	2024-04-12	Go
0402	Remove K Digits	Medium	String, Stack, Greedy, Monotonic Stack	2024-04-11	Go
0496	Next Greater Element I	Easy	Array, Hash Table, Stack, Monotonic Stack	2024-04-11	Go
0950	Reveal Cards In Increasing Order	Medium	Array, Queue, Sorting, Simulation	2024-04-10	Go
2073	Time Needed to Buy Tickets	Easy	Array, Queue, Simulation	2024-04-09	Go
0978	Longest Turbulent Subarray	Medium	Array, Dynamic Programming, Sliding Window	2024-04-08	Go
0678	Valid Parenthesis String	Medium	String, Dynamic Programming, Stack, Greedy	2024-04-07	Go
0032	Longest Valid Parentheses	Hard	String, Dynamic Programming, Stack	2024-04-06	Go
1544	Make The String Great	Easy	String, Stack	2024-04-05	Go
0212	Word Search II	Hard	Array, String, Backtracking, Trie, Matrix	2024-04-05	Go
1614	Maximum Nesting Depth of the Parentheses	Easy	String, Stack	2024-04-04	Go
0079	Word Search	Medium	Array, String, Backtracking, Matrix	2024-04-03	Go
0205	Isomorphic Strings	Easy	Hash Table, String	2024-04-02	Go
0058	Length of Last Word	Easy	String	2024-04-01	Go
0765	Couples Holding Hands	Hard	Greedy, Depth-First Search, Breadth-First Search, Union Find, Graph	2024-03-31	Go
0268	Missing Number	Easy	Array, Hash Table, Math, Binary Search, Bit Manipulation, Sorting	2024-03-31	Go
2444	Count Subarrays With Fixed Bounds	Hard	Array, Queue, Sliding Window, Monotonic Queue	2024-03-31	Go
0004	Median of Two Sorted Arrays	Hard	Array, Binary Search, Divide and Conquer	2024-03-30	Go
0992	Subarrays with K Different Integers	Hard	Array, Hash Table, Sliding Window, Counting	2024-03-29	Go
2962	Count Subarrays Where Max Element Appears at Least K Times	Medium	Array, Sliding Window	2024-03-29	Go
2958	Length of Longest Subarray With at Most K Frequency	Medium	Array, Hash Table, Sliding Window	2024-03-28	Go
2302	Count Subarrays With Score Less Than K	Hard	Array, Binary Search, Sliding Window, Prefix Sum	2024-03-27	Go
0713	Subarray Product Less Than K	Medium	Array, Sliding Window	2024-03-27	Go
0041	First Missing Positive	Hard	Array, Hash Table	2024-03-26	Go
0442	Find All Duplicates in an Array	Medium	Array, Hash Table	2024-03-25	Go
0287	Find the Duplicate Number	Medium	Array, Two Pointers, Binary Search, Bit Manipulation	2024-03-24	Go
0143	Reorder List	Medium	Linked List, Two Pointers, Stack, Recursion	2024-03-23	Go
0234	Palindrome Linked List	Easy	Linked List, Two Pointers, Stack, Recursion	2024-03-22	Go
0010	Regular Expression Matching	Hard	String, Dynamic Programming, Recursion	2024-03-21	Go
1669	Merge In Between Linked Lists	Medium	Linked List	2024-03-20	Go
0621	Task Scheduler	Medium	Array, Hash Table, Greedy, Sorting, Heap (Priority Queue), Counting	2024-03-19	Go
2365	Task Scheduler II	Medium	Array, Hash Table, Simulation	2024-03-19	Go
0452	Minimum Number of Arrows to Burst Balloons	Medium	Array, Greedy, Sorting	2024-03-18	Go
0057	Insert Interval	Medium	Array	2024-03-17	Go
0056	Merge Intervals	Medium	Array, Sorting	2024-03-17	Go
0525	Contiguous Array	Medium	Array, Hash Table, Prefix Sum	2024-03-16	Go
0238	Product of Array Except Self	Medium	Array, Prefix Sum	2024-03-15	Go
0930	Binary Subarrays With Sum	Medium	Array, Hash Table, Sliding Window, Prefix Sum	2024-03-14	Go
2485	Find the Pivot Integer	Easy	Math, Prefix Sum	2024-03-13	Go
1171	Remove Zero Sum Consecutive Nodes from Linked List	Medium	Hash Table, Linked List	2024-03-12	Go
0791	Custom Sort String	Medium	Hash Table, String, Sorting	2024-03-11	Go
0349	Intersection of Two Arrays	Easy	Array, Hash Table, Two Pointers, Binary Search, Sorting	2024-03-10	Go
2540	Minimum Common Value	Easy	Array, Hash Table, Two Pointers, Binary Search	2024-03-09	Go
3005	Count Elements With Maximum Frequency	Easy	Array, Hash Table, Counting	2024-03-08	Go
0876	Middle of the Linked List	Easy	Linked List, Two Pointers	2024-03-07	Go
0141	Linked List Cycle	Easy	Hash Table, Linked List, Two Pointers	2024-03-06	Go
1750	Minimum Length of String After Deleting Similar Ends	Medium	Two Pointers, String	2024-03-05	Go
0948	Bag of Tokens	Medium	Array, Two Pointers, Greedy, Sorting	2024-03-04	Go
0019	Remove Nth Node From End of List	Medium	Linked List, Two Pointers	2024-03-03	Go
0977	Squares of a Sorted Array	Easy	Array, Two Pointers, Sorting	2024-03-02	Go
2864	Maximum Odd Binary Number	Easy	Math, String, Greedy	2024-03-01	Go
1609	Even Odd Tree	Medium	Tree, Breadth-First Search, Binary Tree	2024-02-29	Go
0513	Find Bottom Left Tree Value	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-02-28	Go
0647	Palindromic Substrings	Medium	String, Dynamic Programming	2024-02-28	Go
0543	Diameter of Binary Tree	Easy	Tree Depth-First Search Binary Tree	2024-02-27	Go
0121	Best Time to Buy and Sell Stock	Easy	Array, Dynamic Programming	2024-02-27	Go
0053	Maximum Subarray	Medium	Array, Divide and Conquer, Dynamic Programming	2024-02-27	Go
0516	Longest Palindromic Subsequence	Medium	String, Dynamic Programming	2024-02-26	Go
0100	Same Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-02-26	Go Python
2709	Greatest Common Divisor Traversal	Hard	Array, Math, Union Find, Number Theory	2024-02-25	Go
0322	Coin Change	Medium	Array, Dynamic Programming, Breadth-First Search	2024-02-25	Go
0064	Minimum Path Sum	Medium	Array, Dynamic Programming, Matrix	2024-02-25	Go
0005	Longest Palindromic Substring	Medium	String, Dynamic Programming	2024-02-24	Go
2092	Find All People With Secret	Hard	Depth-First Search, Breadth-First Search, Union Find, Graph, Sorting	2024-02-24	Go
0787	Cheapest Flights Within K Stops	Medium	Dynamic Programming, Depth-First Search, Breadth-First Search, Graph, Heap (Priority Queue), Shortest Path	2024-02-23	Go
1143	Longest Common Subsequence	Medium	String, Dynamic Programming	2024-02-22	Go
0338	Counting Bits	Easy	Dynamic Programming, Bit Manipulation	2024-02-22	Go Python
0191	Number of 1 Bits	Easy	Divide and Conquer, Bit Manipulation	2024-02-22	Go
0190	Reverse Bits	Easy	Divide and Conquer, Bit Manipulation	2024-02-22	Go
0300	Longest Increasing Subsequence	Medium	Array, Binary Search, Dynamic Programming	2024-02-21	Go Python
0198	House Robber	Medium	Array, Dynamic Programming	2024-02-21	Go Python
0063	Unique Paths II	Medium	Array, Dynamic Programming, Matrix	2024-02-21	Go
0062	Unique Paths	Medium	Math, Dynamic Programming, Combinatorics	2024-02-21	Go
1091	Shortest Path in Binary Matrix	Medium	Array, Breadth-First Search, Matrix	2024-02-20	Go
0695	Max Area of Island	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2024-02-20	Go
0133	Clone Graph	Medium	Hash Table, Depth-First Search, Breadth-First Search, Graph	2024-02-20	Go
1046	Last Stone Weight	Easy	Array, Heap (Priority Queue)	2024-02-19	Go
0973	K Closest Points to Origin	Medium	Array, Math, Divide and Conquer, Geometry, Sorting, Heap (Priority Queue), Quickselect	2024-02-19	Go
0146	LRU Cache	Medium	Hash Table, Linked List, Design, Doubly-Linked List	2024-02-19	Go Python
0703	Kth Largest Element in a Stream	Easy	Tree, Design, Binary Search Tree, Heap (Priority Queue), Binary Tree, Data Stream	2024-02-19	Go Python
0705	Design HashSet	Easy	Array, Hash Table, Linked List, Design, Hash Function	2024-02-19	Go
0706	Design HashMap	Easy	Array, Hash Table, Linked List, Design, Hash Function	2024-02-19	Go
0217	Contains Duplicate	Easy	Array, Hash Table, Sorting	2024-02-19	Go Python
0112	Path Sum	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-02-18	Go Python
0078	Subsets	Medium	Array, Backtracking, Bit Manipulation	2024-02-18	Go
0039	Combination Sum	Medium	Array, Backtracking	2024-02-18	Go
0701	Insert into a Binary Search Tree	Medium	Tree, Binary Search Tree, Binary Tree	2024-02-18	Go
0700	Search in a Binary Search Tree	Easy	Tree, Binary Search Tree, Binary Tree	2024-02-18	Go
0450	Delete Node in a BST	Medium	Tree, Binary Search Tree, Binary Tree	2024-02-18	Go
0235	Lowest Common Ancestor of a Binary Search Tree	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-02-18	Go
0230	Kth Smallest Element in a BST	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-02-17	Go
0105	Construct Binary Tree from Preorder and Inorder Traversal	Medium	Array, Hash Table, Divide and Conquer, Tree, Binary Tree	2024-02-17	Go
0094	Binary Tree Inorder Traversal	Easy	Stack, Tree, Depth-First Search, Binary Tree	2024-02-17	Go
0704	Binary Search	Easy	Array, Binary Search	2024-02-17	Go
0023	Merge k Sorted Lists	Hard	Linked List, Divide and Conquer, Heap (Priority Queue), Merge Sort	2024-02-16	Go
0912	Sort an Array	Medium	Array, Divide and Conquer, Sorting, Heap (Priority Queue), Merge Sort, Bucket Sort, Radix Sort, Counting Sort	2024-02-16	Go
0075	Sort Colors	Medium	Array, Two Pointers, Sorting	2024-02-16	Go
0070	Climbing Stairs	Easy	Math, Dynamic Programming, Memoization	2024-02-15	Go
0509	Fibonacci Number	Easy	Math, Dynamic Programming, Recursion, Memoization	2024-02-15	Go
1700	Number of Students Unable to Eat Lunch	Easy	Array, Stack, Queue, Simulation	2024-02-14	Go
0021	Merge Two Sorted Lists	Easy	Linked List, Recursion	2024-02-14	Go
1472	Design Browser History	Medium	Array, Linked List, Stack, Design, Doubly-Linked List, Data Stream	2024-02-14	Go
0707	Design Linked List	Medium	Linked List, Design	2024-02-14	Go Python
1470	Shuffle the Array	Easy	Array	2024-02-13	Go
0027	Remove Element	Easy	Array, Two Pointers	2024-02-13	Go
0026	Remove Duplicates from Sorted Array	Easy	Array, Two Pointers	2024-02-13	Go
1632	Rank Transform of a Matrix	Hard	Array, Union Find, Graph, Topological Sort, Sorting, Matrix	2024-02-12	Go
0273	Integer to English Words	Hard	Math, String, Recursion	2024-02-11	Go
0332	Reconstruct Itinerary	Hard	Depth-First Search, Graph, Eulerian Circuit	2024-02-10	Go
1028	Recover a Tree From Preorder Traversal	Hard	String, Tree, Depth-First Search, Binary Tree	2024-02-10	Go Python
0649	Dota2 Senate	Medium	String, Greedy, Queue	2024-02-09	Go
0224	Basic Calculator	Hard	Math, String, Stack, Recursion	2024-02-09	Go
2551	Put Marbles in Bags	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-02-09	Go Python
0432	All O`one Data Structure	Hard	Hash Table, Linked List, Design, Doubly-Linked List	2024-02-08	Go Python
0025	Reverse Nodes in k-Group	Hard	Linked List, Recursion	2024-02-08	Go
0076	Minimum Window Substring	Hard	Hash Table, String, Sliding Window	2024-02-08	Go
1093	Statistics from a Large Sample	Medium	Array, Math, Probability and Statistics	2024-02-07	Go
0295	Find Median from Data Stream	Hard	Two Pointers, Design, Sorting, Heap (Priority Queue), Data Stream	2024-02-07	Go Python
0239	Sliding Window Maximum	Hard	Array, Queue, Sliding Window, Heap (Priority Queue), Monotonic Queue	2024-02-06	Go Python
0355	Design Twitter	Medium	Hash Table, Linked List, Design, Heap (Priority Queue)	2024-02-05	Go
0208	Implement Trie (Prefix Tree)	Medium	Hash Table, String, Design, Trie	2024-02-04	Go
0225	Implement Stack using Queues	Easy	Stack, Design, Queue	2024-02-04	Go
0589	N-ary Tree Preorder Traversal	Easy	Stack, Tree, Depth-First Search	2024-02-03	Go
0429	N-ary Tree Level Order Traversal	Medium	Tree, Breadth-First Search	2024-02-03	Go
0387	First Unique Character in a String	Easy	Hash Table, String, Queue, Counting	2024-02-03	Go
0037	Sudoku Solver	Hard	Array, Hash Table, Backtracking, Matrix	2024-02-02	Go
0688	Knight Probability in Chessboard	Medium	Dynamic Programming	2024-02-01	Go
0746	Min Cost Climbing Stairs	Easy	Array, Dynamic Programming	2024-01-31	Go
0743	Network Delay Time	Medium	Depth-First Search, Breadth-First Search, Graph, Heap (Priority Queue), Shortest Path	2024-01-30	Go
0997	Find the Town Judge	Easy	Array, Hash Table, Graph	2024-01-29	Go
0207	Course Schedule	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2024-01-28	Go
1376	Time Needed to Inform All Employees	Medium	Tree, Depth-First Search, Breadth-First Search	2024-01-27	Go
0074	Search a 2D Matrix	Medium	Array, Binary Search, Matrix	2024-01-26	Go
0073	Set Matrix Zeroes	Medium	Array, Hash Table, Matrix	2024-01-26	Go
0867	Transpose Matrix	Easy	Array, Matrix, Simulation	2024-01-25	Go
0994	Rotting Oranges	Medium	Array, Breadth-First Search, Matrix	2024-01-25	Go
0200	Number of Islands	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2024-01-24	Go
0098	Validate Binary Search Tree	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-01-23	Go Python
0222	Count Complete Tree Nodes	Easy	Binary Search, Bit Manipulation, Tree, Binary Tree	2024-01-22	Go
0199	Binary Tree Right Side View	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-01-21	Go
0102	Binary Tree Level Order Traversal	Medium	Tree, Breadth-First Search, Binary Tree	2024-01-20	Go
0104	Maximum Depth of Binary Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-01-19	Go Python
0034	Find First and Last Position of Element in Sorted Array	Medium	Array, Binary Search	2024-01-18	Go
0215	Kth Largest Element in an Array	Medium	Array, Divide and Conquer, Sorting, Heap (Priority Queue), Quickselect	2024-01-17	Go
0232	Implement Queue using Stacks	Easy	Stack, Design, Queue	2024-01-16	Go
1249	Minimum Remove to Make Valid Parentheses	Medium	String, Stack	2024-01-15	Go
0020	Valid Parentheses	Easy	String, Stack	2024-01-14	Go
0142	Linked List Cycle II	Medium	Hash Table, Linked List, Two Pointers	2024-01-13	Go
0430	Flatten a Multilevel Doubly Linked List	Medium	Linked List, Depth-First Search, Doubly-Linked List	2024-01-12	Go
0092	Reverse Linked List II	Medium	Linked List	2024-01-11	Go
0206	Reverse Linked List	Easy	Linked List, Recursion	2024-01-10	Go
0680	Valid Palindrome II	Easy	Two Pointers, String, Greedy	2024-01-09	Go
0125	Valid Palindrome	Easy	Two Pointers, String	2024-01-09	Go
0003	Longest Substring Without Repeating Characters	Medium	Hash Table, String, Sliding Window	2024-01-08	Go
0844	Backspace String Compare	Easy	Two Pointers, String, Stack, Simulation	2024-01-07	Go
0042	Trapping Rain Water	Hard	Array, Two Pointers, Dynamic Programming, Stack	2024-01-06	Go
0011	Container With Most Water	Medium	Array, Two Pointers, Greedy	2024-01-05	Go
0001	Two Sum	Easy	Array, Hash Table	2024-01-04	Go