LeetCode

LeetCode Problems' Solutions

Problems

#	Title	Solution	Difficulty
1	Two Sum	C++ Go Python	Easy
2	Add Two Numbers	C++ Go Python	Medium
3	Longest Substring Without Repeating Characters	C++ Go Python	Medium
4	Median of Two Sorted Arrays	C++ Go Python	Hard
5	Longest Palindromic Substring	Go Python	Medium
6	ZigZag Conversion	Go Python	Medium
7	Reverse Integer	Python	Easy
8	String to Integer (atoi)	Python	Medium
9	Palindrome Number	Python	Easy
10	Regular Expression Matching	Python	Hard
11	Container With Most Water	C++ Python	Medium
12	Integer to Roman	Python	Medium
13	Roman to Integer	Go Python	Easy
14	Longest Common Prefix	Python	Easy
15	3Sum	C++ Python	Medium
16	3Sum Closest	Python	Medium
17	Letter Combinations of a Phone Number	Python	Medium
18	4Sum	Python	Medium
19	Remove Nth Node From End of List	C++ Python	Medium
20	Valid Parentheses	C++ Python	Easy
21	Merge Two Sorted Lists	C++ Python	Easy
22	Generate Parentheses	Python	Medium
23	Merge k Sorted Lists	Python	Hard
24	Swap Nodes in Pairs	Python	Medium
25	Reverse Nodes in k-Group	C++	Medium
26	Remove Duplicates from Sorted Array	Python	Easy
27	Remove Element	Python	Easy
28	Find the Index of the First Occurrence in a String	Go Python	Easy
29	Divide Two Integers	Go	Medium
30	Substring with Concatenation of All Words	C++ Go	Hard
32	Longest Valid Parentheses	Python	Hard
33	Search in Rotated Sorted Array	C++ Python	Medium
34	Find First and Last Position of Element in Sorted Array	C++ Go	Medium
36	Valid Sudoku	C++	Medium
38	Count and Say	Go	Medium
39	Combination Sum	Go Python	Medium
40	Combination Sum II	Go	Medium
41	First Missing Positive	Python	Hard
42	Trapping Rain Water	Go Python	Hard
45	Jump Game II	Go Python	Hard
46	Permutations	Python	Medium
48	Rotate Image	C++ Python	Medium
49	Group Anagrams	C++ Go Python	Medium
50	Pow(x, n)	Python	Medium
51	N-Queens	Go	Hard
52	N-Queens II	Go Python	Hard
53	Maximum Subarray	Go Python	Easy
54	Spiral Matrix	C++ Go	Medium
55	Jump Game	Go Python	Medium
56	Merge Intervals	C++ Python	Medium
57	Insert Interval	C++	Medium
58	Length of Last Word	Python	Easy
59	Spiral Matrix II	Go	Medium
61	Rotate List	C++	Medium
62	Unique Paths	Go Python	Medium
63	Unique Paths II	Go	Medium
64	Minimum Path Sum	Go Python	Medium
68	Text Justification	Python	Hard
69	Sqrt(x)	Python	Easy
70	Climbing Stairs	Go Python	Easy
71	Simplify Path	C++	Medium
72	Edit Distance	Go Python	Hard
73	Set Matrix Zeroes	C++ Go	Medium
75	Sort Colors	Go Python	Medium
76	Minimum Window Substring	C++	Hard
77	Letter Combinations	Python	Medium
78	Subsets	Go Python	Medium
79	Word Search	Python	Medium
80	Remove Duplicates from Sorted Array II	Python	Medium
82	Remove Duplicates from Sorted List II	C++	Medium
84	Largest Rectangle in Histogram	Python	Hard
85	Maximal Rectangle	Python	Hard
86	Partition List	C++ Go	Medium
88	Merge Sorted Array	Go Python	Easy
91	Decode Ways	Go	Medium
92	Reverse Linked List II	C++ Go	Medium
94	Binary Tree Inorder Traversal	Python	Medium
95	Unique Binary Search Trees II	Go	Medium
96	Unique Binary Search Trees	Go Python	Medium
97	Interleaving String	Go	Medium
98	Validate Binary Search Tree	Go Python	Medium
100	Same Tree	Python	Easy
101	Symmetric Tree	Python	Easy
102	Binary Tree Level Order Traversal	Go Python	Medium
103	Binary Tree Zigzag Level Order Traversal	Python	Medium
104	Maximum Depth of Binary Tree	Go Python	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	Go Python	Medium
106	Construct Binary Tree from Inorder and Postorder Traversal	Python	Medium
108	Convert Sorted Array to Binary Search Tree	Go	Easy
112	Path Sum	Python	Easy
114	Flatten Binary Tree to Linked List	Go Python	Medium
117	Populating Next Right Pointers in Each Node II	Python	Medium
118	Pascal's Triangle	Go	Easy
119	Pascal's Triangle II	Go	Easy
120	Triangle	Go	Medium
121	Best Time to Buy and Sell Stock	Go Python	Easy
122	Best Time to Buy and Sell Stock II	Go Python	Medium
123	Best Time to Buy and Sell Stock III	Python	Hard
124	Binary Tree Maximum Path Sum	Python	Hard
125	Populating Next Right Pointers in Each Node II	Python	Easy
126	Word Ladder II	Go	Hard
127	Word Ladder	Python	Hard
128	Longest Consecutive Sequence	C++ Go	Medium
129	Sum Root to Leaf Numbers	Python	Medium
134	Gas Station	Python	Medium
135	Candy	Go Python	Hard
137	Single Number II	Go	Medium
138	Copy List with Random Pointer	C++	Medium
139	Word Break	Go	Medium
141	Linked List Cycle	C++	Easy
150	Evaluate Reverse Polish Notation	C++	Medium
151	Reverse Words in a String	Python	Medium
152	Maximum Product Subarray	Go	Medium
155	Min Stack	C++	Medium
160	Intersection of Two Linked Lists	Go	Easy
165	Compare Version Numbers	Go	Medium
167	Two Sum II - Input Array Is Sorted	Go Python	Medium
169	Majority Element	Python	Easy
173	Binary Search Tree Iterator	Python	Medium
188	Best Time to Buy and Sell Stock IV	Python	Hard
189	Rotate Array	Python	Medium
191	Number of 1 Bits	C++ Go	Easy
198	House Robber	Go	Medium
199	Binary Tree Right Side View	Go Python	Medium
200	Number of Islands	Go	Medium
202	Happy Number	C++ Go	Easy
205	Isomorphic Strings	C++	Easy
206	Reverse Linked List	Go	Easy
207	Course Schedule	Go	Medium
208	Implement Trie (Prefix Tree)	Go	Medium
209	Minimum Size Subarray Sum	C++	Medium
210	Course Schedule II	Go	Medium
213	House Robber II	Go	Medium
215	Kth Largest Element in an Array	C++ Go	Medium
216	Combination Sum III	Go	Medium
217	Contains Duplicate	Go	Easy
219	Contains Duplicate II	C++	Easy
221	Maximal Square	Go	Medium
222	Count Complete Tree Nodes	Python	Easy
226	Invert Binary Tree	Python	Easy
227	Basic Calculator II	C++	Medium
228	Summary Ranges	C++	Easy
231	Power of Two	C++	Easy
232	Implement Queue using Stacks	Go	Easy
235	Lowest Common Ancestor of a Binary Search Tree	Go	Easy
236	Lowest Common Ancestor of a Binary Tree	Go Python	Medium
237	Delete Node in a Linked List	Go	Medium
238	Product of Array Except Self	Python	Medium
240	Search a 2D Matrix II	Go	Medium
242	Valid Anagram	C++ Go	Easy
244	Basic Calculator	C++	Hard
255	Verify Preorder Sequence in Binary Search Tree	Go	Medium
263	Ugly Number	Go	Easy
264	Ugly Number	Go	Easy
268	Missing Number	Go	Easy
272	Closest Binary Search Tree Value II	Go	Hard
273	Integer to English Words	Go	Hard
274	H-Index	Python	Medium
279	Perfect Squares	Go	Medium
283	Move Zeroes	Go	Easy
285	Inorder Successor in BST	Go	Medium
289	Game of Life	C++	Medium
290	Word Pattern	C++	Easy
300	Longest Increasing Subsequence	Go	Medium
302	Smallest Rectangle Enclosing Black Pixels	Go	Hard
303	Range Sum Query - Immutable	Go	Easy
304	Range Sum Query 2D - Immutable	Go	Medium
307	Range Sum Query - Immutable	Go	Easy
309	Best Time to Buy and Sell Stock with Cooldown	Go	Medium
311	Sparse Matrix Multiplication	Go	Medium
314	Binary Tree Vertical Order Traversal	C++	Medium
315	Count of Smaller Numbers After Self	Go	Hard
317	Shortest Distance from All Buildings	Go	Hard
318	Maximum Product of Word Lengths	Go	Easy
322	Coin Change	Go	Medium
323	Number of Connected Components in an Undirected Graph	Go	Medium
325	Maximum Size Subarray Sum Equals k	Go	Medium
326	Power of Three	Go	Easy
333	Largest BST Subtree	Go	Medium
343	Integer Break	Go	Medium
353	Design Snake Game	Go	Medium
359	Logger Rate Limiter	Go	Easy
361	Bomb Enemy	Go	Medium
368	Largest Divisible Subset	Go	Medium
376	Wiggle Subsequence	Go	Medium
377	Combination Sum IV	Go	Medium
378	Kth Smallest Element in a Sorted Matrix	Go	Medium
380	Insert Delete GetRandom O(1)	C++ Go Python	Medium
381	Insert Delete GetRandom O(1) - Duplicates allowed	C++	Hard
383	Ransom Note	C++ Go	Easy
386	Lexicographical Numbers	Go	Medium
387	Roman to Integer	Go	Easy
389	Find the Difference	Go	Easy
392	Is Subsequence	Go Python	Easy
404	Sum of Left Leaves	Go	Easy
406	Queue Reconstruction by Height	Go	Medium
407	Trapping Rain Water II	Go Python	Medium
413	Arithmetic Slices	Go	Medium
416	Partition Equal Subset Sum	Go	Medium
425	Word Squares	Go	Hard
426	Convert Binary Search Tree to Sorted Doubly Linked List	Go	Medium
433	Minimum Genetic Mutation	Python	Medium
440	K-th Smallest in Lexicographical Order	Go	Hard
452	Minimum Number of Arrows to Burst Balloons	C++	Medium
458	Poor Pigs	Go	Hard
462	Minimum Moves to Equal Array Elements II	Go	Medium
473	Matchsticks to Square	Go	Medium
494	Target Sum	Go	Medium
496	Next Greater Element I	Go	Easy
506	Relative Ranks	Go	Easy
509	Fibonacci Number	Go	Easy
515	Find Largest Value in Each Tree Row	Go	Medium
516	Longest Palindromic Subsequence	Go	Medium
518	Coin Change 2	Go	Medium
527	Word Abbreviation	Go	Hard
530	Minimum Absolute Difference in BST	Python	Easy
566	Reshape the Matrix	Go	Easy
576	Out of Boundary Paths	Go	Medium
583	Delete Operation for Two Strings	Go	Medium
589	N-ary Tree Preorder Traversal	Go	Easy
594	Longest Harmonious Subsequence	Go	Easy
629	K Inverse Pairs Array	Go	Hard
630	Course Schedule III	Go	Hard
633	Sum of Square Numbers	Go	Medium
637	Average of Levels in Binary Tree	Python	Easy
641	Design Circular Deque	C++	Medium
663	Equal Tree Partition	Go	Medium
665	Non-decreasing Array	Go	Medium
683	K Empty Slots	Go	Hard
684	Redundant Connection	Go	Medium
689	Maximum Sum of 3 Non-Overlapping Subarrays	Go	Hard
695	Max Area of Island	Go	Medium
707	Design Linked List	C++	Medium
709	To Lower Case	Go	Easy
714	Best Time to Buy and Sell Stock with Transaction Fee	Go	Medium
722	Basic Calculator III	C++	Hard
729	My Calendar I	Go	Medium
740	Delete and Earn	Go	Medium
745	Prefix and Suffix Search	Go	Hard
746	Min Cost Climbing Stairs	Go	Easy
763	Partition Labels	Go	Medium
769	Max Chunks To Make Sorted	Go	Medium
781	Rabbits in Forest	Go	Medium
790	Domino and Tromino Tiling	Go	Medium
792	Number of Matching Subsequences	Go	Medium
802	Find Eventual Safe States	Go	Medium
804	Unique Morse Code Words	Go	Easy
808	Soup Servings	C++	Medium
820	Short Encoding of Words	Go	Medium
823	Binary Trees With Factors	Go	Medium
827	Making A Large Island	Go	Hard
834	Sum of Distances in Tree	Go	Hard
838	Push Dominoes	Go	Medium
848	Shifting Letters	Go	Medium
858	Mirror Reflection	Go	Medium
867	Transpose Matrix	Go Python	Easy
869	Reordered Power of 2	C++	Medium
873	Length of Longest Fibonacci Subsequence	Go	Medium
876	Middle of the Linked List	Go	Easy
881	Boats to Save People	Go	Medium
884	Uncommon Words from Two Sentences	Go	Easy
885	Spiral Matrix III	Go	Medium
889	Construct Binary Tree from Preorder and Postorder Traversal	Go	Medium
890	Find and Replace Pattern	Go	Medium
898	Bitwise ORs of Subarrays	Go	Medium
904	Fruit Into Baskets	C++	Medium
909	Snakes and Ladders	Go	Medium
916	Word Subsets	Go	Medium
918	Maximum Sum Circular Subarray	Go	Medium
931	Minimum Falling Path Sum	Go	Medium
945	Minimum Increment to Make Array Unique	Go	Medium
953	Verifying an Alien Dictionary	Go	Easy
959	Regions Cut By Slashes	Go	Medium
968	Binary Tree Cameras	Go	Hard
975	Odd Even Jump	Go	Hard
976	Largest Perimeter Triangle	Go	Easy
983	Minimum Cost For Tickets	Go	Medium
1007	Minimum Domino Rotations For Equal Row	Go	Medium
1014	Best Sightseeing Pair	Go	Medium
1026	Determine if String Halves Are Alike	Go	Medium
1028	Recover a Tree From Preorder Traversal	Go	Hard
1048	Longest String Chain	Go	Medium
1055	Shortest Way to Form String	Go	Medium
1061	Lexicographically Smallest Equivalent String	Go	Medium
1074	Number of Submatrices That Sum to Target	Go	Hard
1079	Letter Tile Possibilities	Go	Medium
1092	Shortest Common Supersequence	Go	Hard
1122	Relative Sort Array	Go	Easy
1123	Lowest Common Ancestor of Deepest Leaves	Go	Medium
1128	Number of Equivalent Domino Pairs	Go	Easy
1137	N-th Tribonacci Number	Go	Easy
1143	Longest Common Subsequence	Go	Medium
1198	Find Smallest Common Element in All Rows	C++	Medium
1207	Unique Number of Occurrences	Go	Easy
1220	Count Vowels Permutation	Go	Hard
1232	Check If It Is a Straight Line	Go	Easy
1233	Remove Sub-Folders from the Filesystem	Go	Medium
1255	Maximum Score Words Formed by Letters	Go	Hard
1261	Find Elements in a Contaminated Binary Tree	Go	Medium
1267	Count Servers that Communicate	Go	Medium
1268	Search Suggestions System	Go	Medium
1281	Subtract the Product and Sum of Digits of an Integer	Go	Easy
1289	Minimum Falling Path Sum II	Go	Hard
1290	Convert Binary Number in a Linked List to Integer	Go	Easy
1295	Find Numbers with Even Number of Digits	Go	Easy
1298	Maximum Candies You Can Get from Boxes	Go	Hard
1309	Decrypt String from Alphabet to Integer Mapping	Go	Easy
1314	Matrix Block Sum	Go	Medium
1332	Remove Palindromic Subsequences	Go	Easy
1338	Reduce Array Size to The Half	Go	Medium
1342	Number of Steps to Reduce a Number to Zero	C++ Go	Easy
1346	Check If N and Its Double Exist	Go	Easy
1347	Minimum Number of Steps to Make Two Strings Anagram	Go	Medium
1352	Product of the Last K Numbers	Go	Medium
1353	Maximum Number of Events That Can Be Attended	Go	Medium
1354	Construct Target Array With Multiple Sums	Go	Hard
1356	Sort Integers by The Number of 1 Bits	Go	Easy
1358	Number of Substrings Containing All Three Characters	Go	Medium
1368	Minimum Cost to Make at Least One Valid Path in a Grid	Go	Hard
1394	Find Lucky Integer in an Array	Go	Easy
1399	Count Largest Group	Go	Easy
1400	Construct K Palindrome Strings	Go	Medium
1405	Longest Happy String	Go	Medium
1408	String Matching in an Array	Go	Easy
1415	The k-th Lexicographical String of All Happy Strings of Length n	Go	Medium
1422	Maximum Score After Splitting a String	Go	Easy
1423	Maximum Points You Can Obtain from Cards	Go	Medium
1429	First Unique Number	Go	Medium
1432	Max Difference You Can Get From Changing an Integer	Go	Medium
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	Go	Medium
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	Go	Easy
1460	Make Two Arrays Equal by Reversing Subarrays	Go	Easy
1461	Check If a String Contains All Binary Codes of Size K	Go	Medium
1462	Course Schedule IV	Go	Medium
1465	Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts	Go	Medium
1473	Paint House III	Go	Hard
1474	Delete N Nodes After M Nodes of a Linked List	Go	Easy
1475	Final Prices With a Special Discount in a Shop	Go	Easy
1480	Running Sum of 1d Array	Go	Easy
1491	Average Salary Excluding the Minimum and Maximum Salary	Go	Easy
1498	Number of Subsequences That Satisfy the Given Sum Condition	Go	Medium
1502	Can Make Arithmetic Progression From Sequence	Go	Easy
1508	Range Sum of Sorted Subarray Sums	Go	Medium
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	Go	Medium
1523	Count Odd Numbers in an Interval Range	Go	Easy
1524	Number of Sub-arrays With Odd Sum	Go	Medium
1534	Count Good Triplets	Go	Easy
1550	Three Consecutive Odds	Go	Easy
1567	Maximum Length of Subarray With Positive Product	Go	Medium
1572	Matrix Diagonal Sum	Go	Easy
1588	Sum of All Odd Length Subarrays	Go	Easy
1593	// Split a String Into the Max Number of Unique Substrings	Go	Medium
1603	Design Parking System	Go	Easy
1639	Number of Ways to Form a Target String Given a Dictionary	Go	Hard
1642	Furthest Building You Can Reach	Go	Medium
1647	Minimum Deletions to Make Character Frequencies Unique	Go	Medium
1653	Minimum Deletions to Make String Balanced	Go	Medium
1657	Determine if Two Strings Are Close	Go	Medium
1658	Minimum Operations to Reduce X to Zero	Go	Medium
1672	Richest Customer Wealth	Go	Easy
1678	Goal Parser Interpretation	Go	Easy
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers	Go	Medium
1695	Maximum Erasure Value	Go	Medium
1696	Jump Game VI	Go	Medium
1704	Determine if String Halves Are Alike	Go	Easy
1710	Maximum Units on a Truck	Go	Easy
1717	Maximum Score From Removing Substrings	Go	Medium
1718	Construct the Lexicographically Largest Valid Sequence	Go	Medium
1726	Tuple with Same Product	Go	Medium
1749	Maximum Absolute Sum of Any Subarray	Go	Medium
1751	Maximum Number of Events That Can Be Attended II	Go	Medium
1752	Check if Array Is Sorted and Rotated	Go	Easy
1760	Minimum Limit of Balls in a Bag	Go	Medium
1765	Map of Highest Peak	Go	Medium
1768	Merge Strings Alternately	Go	Easy
1769	Minimum Number of Operations to Move All Balls to Each Box	Go	Medium
1779	Find Nearest Point That Has the Same X or Y Coordinate	Go	Easy
1780	Check if Number is a Sum of Powers of Three	Go	Medium
1790	Check if One String Swap Can Make Strings Equal	Go	Easy
1792	Maximum Average Pass Ratio	Go	Medium
1800	Maximum Ascending Subarray Sum	Go	Easy
1822	Sign of the Product of an Array	Go	Easy
1857	Largest Color Value in a Directed Graph	Go	Hard
1863	Sum of All Subset XOR Totals	Go	Easy
1865	Finding Pairs With a Certain Sum	Go	Medium
1900	The Earliest and Latest Rounds Where Players Compete	Go	Hard
1910	Remove All Occurrences of a Substring	Go	Medium
1915	Number of Wonderful Substrings	Go	Medium
1920	Build Array from Permutation	Go	Easy
1922	Count Good Numbers	Go	Medium
1930	Unique Length-3 Palindromic Subsequences	Go	Medium
1931	Painting a Grid With Three Different Colors	Go	Hard
1948	Delete Duplicate Folders in System	Go	Hard
1957	Delete Characters to Make Fancy String	Go	Easy
1976	Number of Ways to Arrive at Destination	Go	Medium
1980	Find Unique Binary String	Go	Medium
2000	Reverse Prefix of Word	Go	Easy
2014	Longest Subsequence Repeated k Times	Go	Hard
2016	Maximum Difference Between Increasing Elements	Go	Easy
2017	Grid Game	Go	Medium
2033	Minimum Operations to Make a Uni-Value Grid	Go	Medium
2037	Minimum Number of Moves to Seat Everyone	Go	Easy
2040	Kth Smallest Product of Two Sorted Arrays	Go	Hard
2044	Count Number of Maximum Bitwise-OR Subsets	Go	Medium
2054	Two Best Non-Overlapping Events	Go	Medium
2071	Maximum Number of Tasks You Can Assign	Go	Hard
2081	Sum of k-Mirror Numbers	Go	Hard
2094	Finding 3-Digit Even Numbers	Go	Easy
2099	Find Subsequence of Length K With the Largest Sum	Go	Easy
2106	Maximum Fruits Harvested After at Most K Steps	C++	Hard
2109	Adding Spaces to a String	Go	Medium
2115	Find All Possible Recipes from Given Supplies	Go	Medium
2116	Check if a Parentheses String Can Be Valid	Go	Medium
2125	Number of Laser Beams in a Bank	Go	Medium
2127	Maximum Employees to Be Invited to a Meeting	Go	Hard
2131	Longest Palindrome by Concatenating Two Letter Words	Go	Medium
2134	Minimum Swaps to Group All 1's Together II	Go	Medium
2138	Divide a String Into Groups of Size k	Go	Easy
2140	Solving Questions With Brainpower	Go	Medium
2145	Count the Hidden Sequences	Go	Medium
2161	Partition Array According to Given Pivot	Go	Easy
2163	Minimum Difference in Sums After Removal of Elements	Go	Hard
2176	Count Equal and Divisible Pairs in an Array	Go	Easy
2179	Count Good Triplets in an Array	Go	Hard
2181	Merge Nodes in Between Zeros	Go	Medium
2182	Construct String With Repeat Limit	Go	Medium
2185	Counting Words With a Given Prefix	Go	Easy
2200	Find All K-Distant Indices in an Array	Go	Easy
2206	Divide Array Into Equal Pairs	Go	Easy
2210	Count Hills and Valleys in an Array	Go	Easy
2225	Find Players With Zero or One Losses	Go	Medium
2266	Maximum Candies Allocated to K Children	Go	Medium
2270	Number of Ways to Split Array	Go	Medium
2294	Partition Array Such That Maximum Difference Is K	Go	Medium
2302	Count Subarrays With Score Less Than K	Go	Hard
2311	Longest Binary Subsequence Less Than or Equal to K	Go	Medium
2319	Check if Matrix Is X-Matrix	Go	Easy
2320	Count Number of Ways to Place Houses	Go	Medium
2321	Maximum Score Of Spliced Array	Go	Hard
2322	Minimum Score After Removals on a Tree	Go	Hard
2326	Spiral Matrix IV	Go	Medium
2331	Evaluate Boolean Binary Tree	Go	Easy
2337	Move Pieces to Obtain a String	Go	Medium
2338	Count the Number of Ideal Arrays	Go	Hard
2342	Max Sum of a Pair With Equal Sum of Digits	Go	Medium
2349	Design a Number Container System	Go	Medium
2364	Count Number of Bad Pairs	Go	Medium
2375	Construct Smallest Number From DI String	Go	Medium
2379	Minimum Recolors to Get K Consecutive Black Blocks	Go	Easy
2381	Shifting Letters II	Go	Medium
2401	Longest Nice Subarray	Go	Medium
2402	Meeting Rooms III	Go	Hard
2410	Maximum Matching of Players With Trainers	Go	Medium
2411	Smallest Subarrays With Maximum Bitwise OR	Go	Medium
2415	Reverse Odd Levels of Binary Tree	Go	Medium
2419	Longest Subarray With Maximum Bitwise AND	Go	Medium
2425	Bitwise XOR of All Pairings	Go	Medium
2429	Minimize XOR	Go	Medium
2434	Using a Robot to Print the Lexicographically Smallest String	Go	Medium
2441	Largest Positive Integer That Exists With Its Negative	Go	Easy
2444	Count Subarrays With Fixed Bounds	Go	Hard
2460	Apply Operations to an Array	Go	Easy
2466	Count Ways To Build Good Strings	Go	Medium
2467	Most Profitable Path in a Tree	Go	Medium
2471	Minimum Number of Operations to Sort a Binary Tree by Level	Go	Medium
2487	Remove Nodes From Linked List	Go	Medium
2493	Divide Nodes Into the Maximum Number of Groups	Go	Hard
2503	Maximum Number of Points From Grid Queries	Go	Hard
2523	Closest Prime Numbers in Range	Go	Medium
2529	Maximum Count of Positive Integer and Negative Integer	Go	Easy
2537	Count the Number of Good Subarrays	Go	Medium
2551	Put Marbles in Bags	Go	Hard
2554	Maximum Number of Integers to Choose From a Range I	Go	Medium
2558	Take Gifts From the Richest Pile	Go	Easy
2559	Count Vowel Strings in Ranges	Go	Medium
2560	House Robber IV	Go	Medium
2561	Rearranging Fruits	C++	Hard
2563	Count the Number of Fair Pairs	Go	Medium
2566	Maximum Difference by Remapping a Digit	Go	Easy
2570	Merge Two 2D Arrays by Summing Values	Go	Easy
2579	Count Total Number of Colored Cells	Go	Medium
2593	Find Score of an Array After Marking All Elements	Go	Medium
2594	Minimum Time to Repair Cars	Go	Medium
2616	Minimize the Maximum Difference of Pairs	Go	Medium
2657	Find the Prefix Common Array of Two Arrays	Go	Medium
2658	Maximum Number of Fish in a Grid	Go	Medium
2661	First Completely Painted Row or Column	Go Python	Medium
2683	Neighboring Bitwise XOR	Go	Medium
2685	Count the Number of Complete Components	Go	Medium
2698	Find the Punishment Number of an Integer	Go	Medium
2762	Continuous Subarrays	Go	Medium
2779	Maximum Beauty of an Array After Applying Operation	Go	Medium
2780	Minimum Index of a Valid Split	Go	Medium
2799	Count Complete Subarrays in an Array	Go	Medium
2816	Double a Number Represented as a Linked List	Go	Medium
2818	Apply Operations to Maximize Score	Go	Medium
2825	Make String a Subsequence Using Cyclic Increments	Go	Medium
2845	Count of Interesting Subarrays	Go	Medium
2870	Minimum Number of Operations to Make Array Empty	Go	Medium
2872	Maximum Number of K-Divisible Components	Go	Hard
2873	Maximum Value of an Ordered Triplet I	Go	Easy
2874	Maximum Value of an Ordered Triplet II	Go	Medium
2894	Divisible and Non-divisible Sums Difference	Go	Easy
2900	Longest Unequal Adjacent Groups Subsequence I	Go	Easy
2901	Longest Unequal Adjacent Groups Subsequence II	Go	Medium
2918	Minimum Equal Sum of Two Arrays After Replacing Zeros	Go	Medium
2927	Distribute Candies Among Children III	Go	Hard
2928	Distribute Candies Among Children I	Go	Easy
2929	Distribute Candies Among Children II	Go	Medium
2938	Separate Black and White Balls	Go	Medium
2940	Find Building Where Alice and Bob Can Meet	Go	Hard
2942	Find Words Containing Character	Go	Easy
2943	Count Symmetric Integers	Go	Easy
2948	Make Lexicographically Smallest Array by Swapping Elements	Go	Medium
2962	Count Subarrays Where Max Element Appears at Least K Times	Go	Medium
2965	Find Missing and Repeated Values	Go	Medium
2966	Divide Array Into Arrays With Max Difference	Go	Medium
2981	Find Longest Special Substring That Occurs Thrice I	Go	Medium
2997	Minimum Number of Operations to Make Array XOR Equal to K	Go	Medium
2999	Count the Number of Powerful Integers	Go	Hard
3016	Minimum Number of Pushes to Type Word II	Go	Medium
3024	Type of Triangle	Go	Easy
3042	Count Prefix and Suffix Pairs I	Go	Easy
3066	Minimum Operations to Exceed Threshold Value II	Go	Medium
3068	Find the Maximum Sum of Node Values	Go	Medium
3075	Maximize Happiness of Selected Children	Go	Medium
3085	Minimum Deletions to Make String K-Special	Go	Medium
3105	Longest Strictly Increasing or Strictly Decreasing Subarray	Go	Easy
3108	Minimum Cost Walk in Weighted Graph	Go	Hard
3136	Valid Word	Go	Easy
3151	Special Array I	Go	Easy
3152	Special Array II	Go	Medium
3160	Find the Number of Distinct Colors Among the Balls	Go	Medium
3169	Count Days Without Meetings	Go	Medium
3170	Lexicographically Minimum String After Removing Stars	Go	Medium
3174	Clear Digits	Go	Easy
3191	Minimum Operations to Make Binary Array Elements Equal to One I	Go	Medium
3201	Find the Maximum Length of Valid Subsequence I	Go	Medium
3202	Find the Maximum Length of Valid Subsequence II	Go	Medium
3203	Find Minimum Diameter After Merging Two Trees	Go	Hard
3208	Alternating Groups II	Go	Medium
3223	Minimum Length of String After Operations	Go	Medium
3264	Final Array State After K Multiplication Operations I	Go	Easy
3272	Find the Count of Good Integers	Go	Hard
3304	Find the K-th Character in String Game I	Go	Easy
3306	Count of Substrings Containing Every Vowel and K Consonants II	Go	Medium
3307	Find the K-th Character in String Game II	Go	Hard
3330	Find the Original Typed String I	Go	Easy
3333	Find the Original Typed String II	Go	Easy
3335	Zero Array Transformation I	Go	Medium
3337	Total Characters in String After Transformations II	Go	Hard
3341	Find Minimum Time to Reach Last Room I	Go	Medium
3342	Find Minimum Time to Reach Last Room II	Go	Medium
3343	Count Number of Balanced Permutations	Go	Hard
3355	Total Characters in String After Transformations I	Go	Medium
3356	Zero Array Transformation II	Go	Medium
3359	Find Closest Node to Given Two Nodes	Go	Medium
3362	Zero Array Transformation III	Go	Medium
3363	Find the Maximum Number of Fruits Collected	C++	Hard
3372	Maximize the Number of Target Nodes After Connecting Trees I	Go	Medium
3373	Maximize the Number of Target Nodes After Connecting Trees II	Go	Medium
3375	Minimum Operations to Make Array Values Equal to K	Go	Medium
3392	Count Subarrays of Length Three With a Condition	Go	Easy
3394	Check if Grid can be Cut into Sections	Go	Medium
3396	Minimum Number of Operations to Make Elements in Array Distinct	Go	Easy
3403	Find the Lexicographically Largest String From the Box I	Go	Medium
3405	Count the Number of Arrays with K Matching Adjacent Elements	Go	Hard
3423	Maximum Difference Between Adjacent Elements in a Circular Array	Go	Easy
3439	Reschedule Meetings for Maximum Free Time I	Go	Medium
3440	Reschedule Meetings for Maximum Free Time II	Go	Medium
3442	Maximum Difference Between Even and Odd Frequency I	Go	Easy
3443	Maximum Manhattan Distance After K Changes	Go	Medium
3445	Maximum Difference Between Even and Odd Frequency II	Go	Hard
3477	Fruits Into Baskets II	C++	Easy
3479	Fruits Into Baskets III	C++	Medium
3480	Maximize Subarrays After Removing One Conflicting Pair	Go	Hard
3487	Maximum Unique Subarray Sum After Deletion	Go	Easy