Recording my journey on LeetCode

778+ Solved Questions

#	Title	Solution	Difficulty
1	Two Sum	C++ C++	Easy
2	Add Two Numbers	C++ C++	Medium
3	Longest Substring Without Repeating Characters	C++ C++	Medium
5	Longest Palindromic Substring	C++	Medium
6	Zigzag Conversion	C++	Medium
7	Reverse Integer	C++	Medium
8	String to Integer (atoi)	C++	Medium
9	Palindrome Number	C++	Easy
11	Container With Most Water	C++	Medium
12	Integer to Roman	C++ C++	Medium
13	Roman to Integer	C++	Easy
14	Longest Common Prefix	C++ C++	Easy
15	3Sum	C++ C++	Medium
16	3Sum Closest	C++	Medium
17	Letter Combinations of a Phone Number	C++ C++	Medium
18	4Sum	C++	Medium
19	Remove Nth Node From End of List	C++ C++	Medium
20	Valid Parentheses	C++ C++	Easy
21	Merge Two Sorted Lists	C++ C++ C++	Easy
22	Generate Parentheses	C++ C++ C++ C++	Medium
23	Merge k Sorted Lists	C++ C++ C++ C++ C++ C++	Hard
24	Swap Nodes in Pairs	C++ C++ C++ C++	Medium
26	Remove Duplicates from Sorted Array	C++	Easy
27	Remove Element	C++ C++	Easy
28	Find the Index of the First Occurrence in a String	C++ C++	Medium
31	Next Permutation	C++	Medium
33	Search in Rotated Sorted Array	C++	Medium
34	Find First and Last Position of Element in Sorted Array	C++	Medium
35	Search Insert Position	C++ C++	Easy
36	Valid Sudoku	C++	Medium
38	Count and Say	C++	Medium
39	Combination Sum	C++	Medium
40	Combination Sum II	C++	Medium
41	First Missing Positive	C++ C++	Hard
42	Trapping Rain Water	C++	Hard
43	Multiply Strings	C++	Medium
46	Permutations	C++	Medium
47	Permutations II	C++	Medium
48	Rotate Image	C++ C++ C++	Medium
49	Group Anagrams	C++ C++	Medium
50	Pow(x, n)	C++	Medium
53	Maximum Subarray	C++ C++	Easy
54	Spiral Matrix	C++ C++	Medium
55	Jump Game	C++	Medium
56	Merge Intervals	C++	Medium
57	Insert Interval	C++ C++	Medium
58	Length of Last Word	C++	Easy
59	Spiral Matrix II	C++	Medium
61	Rotate List	C++	Medium
62	Unique Paths	C++	Medium
63	Unique Paths II	C++	Medium
64	Minimum Path Sum	C++ C++ C++ C++	Medium
66	Plus One	C++	Easy
67	Add Binary	C++	Easy
69	Sqrt(x)	C++	Easy
70	Climbing Stairs	C++ C++	Easy
71	Simplify Path	C++ C++	Medium
72	Edit Distance	C++ C++	Hard
73	Set Matrix Zeroes	C++	Medium
74	Search a 2D Matrix	C++ C++ C++	Medium
75	Sort Colors	C++	Medium
76	Minimum Window Substring	C++ C++	Hard
77	Combinations	C++	Medium
78	Subsets	C++ C++	Medium
79	Word Search	C++	Medium
80	Remove Duplicates from Sorted Array II	C++ C++ C++	Medium
81	Search in Rotated Sorted Array II	C++	Medium
82	Remove Duplicates from Sorted List II	C++ C++ C++	Medium
83	Remove Duplicates from Sorted List	C++ C++ C++	Easy
84	Largest Rectangle in Histogram	C++	Hard
86	Partition List	C++	Medium
88	Merge Sorted Array	C++	Easy
89	Gray Code	C++ C++ C++	Medium
90	Subsets II	C++ C++ C++	Medium
91	Decode Ways	C++	Medium
92	Reverse Linked List II	C++ C++ C++	Medium
93	Restore IP Addresses	C++	Medium
94	Binary Tree Inorder Traversal	C++	Easy
96	Unique Binary Search Trees	C++	Medium
97	Interleaving String	C++	Medium
98	Validate Binary Search Tree	C++ C++	Medium
99	Recover Binary Search Tree	C++ C++ C++	Medium
100	Same Tree	C++	Easy
101	Symmetric Tree	C++ C++	Easy
102	Binary Tree Level Order Traversal	C++	Medium
103	Binary Tree Zigzag Level Order Traversal	C++	Medium
104	Maximum Depth of Binary Tree	C++ C++ C++	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	C++	Medium
106	Construct Binary Tree from Inorder and Postorder Traversal	C++ C++	Medium
107	Binary Tree Level Order Traversal II	C++	Medium
108	Convert Sorted Array to Binary Search Tree	C++	Easy
109	Convert Sorted List to Binary Search Tree	C++ C++ C++	Medium
110	Balanced Binary Tree	C++	Easy
111	Minimum Depth of Binary Tree	C++	Easy
112	Path Sum	C++	Easy
113	Path Sum II	C++ C++	Medium
114	Flatten Binary Tree to Linked List	C++	Medium
116	Populating Next Right Pointers in Each Node	C++ C++	Medium
117	Populating Next Right Pointers in Each Node II	C++ C++	Medium
118	Pascal's Triangle	C++	Easy
120	Triangle	C++	Medium
121	Best Time to Buy and Sell Stock	C++ C++ C++	Easy
122	Best Time to Buy and Sell Stock II	C++	Medium
123	Best Time to Buy and Sell Stock III	C++	Hard
124	Binary Tree Maximum Path Sum	C++	Hard
125	Valid Palindrome	C++	Easy
127	Word Ladder	C++	Hard
128	Longest Consecutive Sequence	C++ C++	Medium
129	Sum Root to Leaf Numbers	C++	Medium
130	Surrounded Regions	C++	Medium
131	Palindrome Partitioning	C++	Medium
133	Clone Graph	C++ C++ C++	Medium
134	Gas Station	C++	Medium
135	Candy	C++	Hard
136	Single Number	C++ C++ C++ C++	Easy
137	Single Number II	C++	Medium
138	Copy List with Random Pointer	C++ C++	Medium
139	Word Break	C++	Medium
141	Linked List Cycle	C++ C++	Easy
142	Linked List Cycle II	C++ C++	Medium
143	Reorder List	C++	Medium
144	Binary Tree Preorder Traversal	C++	Easy
145	Binary Tree Postorder Traversal	C++	Easy
146	LRU Cache	C++	Medium
147	Insertion Sort List	C++	Medium
148	Sort List	C++ C++	Medium
149	Max Points on a Line	C++	Hard
151	Reverse Words in a String	C++	Medium
152	Maximum Product Subarray	C++	Medium
153	Find Minimum in Rotated Sorted Array	C++	Medium
155	Min Stack	C++	Easy
160	Intersection of Two Linked Lists	C++ C++	Easy
162	Find Peak Element	C++ C++	Medium
165	Compare Version Numbers	C++	Medium
167	Two Sum II - Input array is sorted	C++ C++ C++	Medium
168	Excel Sheet Column Title	C++	Easy
169	Majority Element	C++ C++ C++ C++	Easy
171	Excel Sheet Column Number	C++	Easy
173	Binary Search Tree Iterator	C++ C++ C++ C++	Medium
179	Largest Number	C++	Medium
188	Best Time to Buy and Sell Stock IV	C++	Hard
189	Rotate Array	C++	Medium
191	Number of 1 Bits	C++ C++	Easy
198	House Robber	C++	Medium
199	Binary Tree Right Side View	C++ C++ C++	Medium
200	Number of Islands	C++ C++	Medium
202	Happy Number	C++	Easy
203	Remove Linked List Elements	C++ C++	Easy
204	Count Primes	C++	Medium
205	Isomorphic Strings	C++ C++	Easy
206	Reverse Linked List	C++ C++ C++	Easy
207	Course Schedule	C++ C++	Medium
208	Implement Trie (Prefix Tree)	C++ C++	Medium
209	Minimum Size Subarray Sum	C++	Medium
210	Course Schedule II	C++ C++ C++	Medium
211	Design Add and Search Words Data Structure	C++	Medium
212	Word Search II	C++ C++	Hard
213	House Robber II	C++	Medium
215	Kth Largest Element in an Array	C++ C++	Medium
216	Combination Sum III	C++	Medium
217	Contains Duplicate	C++ C++ C++	Easy
219	Contains Duplicate II	C++	Easy
220	Contains Duplicate III	C++	Medium
221	Maximal Square	C++	Medium
222	Count Complete Tree Nodes	C++ C++ C++	Medium
225	Implement Stack using Queues	C++ C++ C++	Easy
226	Invert Binary Tree	C++ C++ C++	Easy
228	Summary Ranges	C++	Easy
229	Majority Element II	C++ C++	Medium
230	Kth Smallest Element in a BST	C++ C++ C++	Medium
231	Power of Two	C++	Easy
232	Implement Queue using Stacks	C++	Easy
234	Palindrome Linked List	C++ C++	Easy
235	Lowest Common Ancestor of a Binary Search Tree	C++ C++	Medium
236	Lowest Common Ancestor of a Binary Tree	C++	Medium
237	Delete Node in a Linked List	C++ C++	Medium
238	Product of Array Except Self	C++ C++	Medium
239	Sliding Window Maximum	C++	Hard
240	Search a 2D Matrix II	C++	Medium
242	Valid Anagram	C++	Easy
257	Binary Tree Paths	C++	Easy
258	Add Digits	C++ C++ C++	Easy
260	Single Number III	C++ C++	Medium
263	Ugly Number	C++	Easy
268	Missing Number	C++ C++ C++	Easy
270	Closest Binary Search Tree Value	C++ C++	Easy
274	H-Index	C++ C++	Medium
275	H-Index II	C++	Medium
277	Find the Celebrity	C++	Medium
278	First Bad Version	C++	Easy
283	Move Zeroes	C++	Easy
284	Peeking Iterator	C++	Medium
285	Inorder Successor in BST	C++ C++	Medium
286	Walls and Gates	C++ C++	Medium
287	Find the Duplicate Number	C++ C++ C++ C++	Medium
289	Game of Life	C++	Medium
290	Word Pattern	C++ C++	Easy
292	Nim Game	C++	Easy
297	Serialize and Deserialize Binary Tree	C++	Hard
300	Longest Increasing Subsequence	C++	Medium
303	Range Sum Query - Immutable	C++	Easy
304	Range Sum Query 2D - Immutable	C++	Medium
307	Range Sum Query - Mutable	C++ C++	Medium
309	Best Time to Buy and Sell Stock with Cooldown	C++	Medium
312	Burst Balloons	C++ C++	Hard
316	Remove Duplicate Letters	C++ C++ C++	Medium
322	Coin Change	C++	Medium
323	Number of Connected Components in an Undirected Graph	C++ C++ C++	Medium
326	Power of Three	C++	Easy
328	Odd Even Linked List	C++ C++	Medium
329	Longest Increasing Path in a Matrix	C++	Hard
331	Verify Preorder Serialization of a Binary Tree	C++	Medium
334	Increasing Triplet Subsequence	C++ C++ C++	Medium
338	Counting Bits	C++ C++ C++	Easy
341	Flatten Nested List Iterator	C++ C++	Medium
342	Power of Four	C++	Easy
343	Integer Break	C++ C++	Medium
344	Reverse String	C++ C++	Easy
345	Reverse Vowels of a String	C++ C++	Easy
347	Top K Frequent Elements	C++ C++ C++	Medium
349	Intersection of Two Arrays	C++	Easy
350	Intersection of Two Arrays II	C++	Easy
352	Data Stream as Disjoint Intervals	C++	Hard
366	Find Leaves of Binary Tree	C++	Medium
367	Valid Perfect Square	C++	Easy
371	Sum of Two Integers	C++	Medium
373	Find K Pairs with Smallest Sums	C++	Medium
374	Guess Number Higher or Lower	C++ C++	Easy
376	Wiggle Subsequence	C++	Medium
377	Combination Sum IV	C++	Medium
378	Kth Smallest Element in a Sorted Matrix	C++	Medium
380	Insert Delete GetRandom O(1)	C++ C++	Medium
382	Linked List Random Node	C++ C++	Medium
383	Ransom Note	C++ C++	Easy
384	Shuffle an Array	C++	Medium
385	Mini Parser	C++	Medium
387	First Unique Character in a String	C++ C++	Easy
389	Find the Difference	C++ C++ C++ C++ C++	Easy
390	Elimination Game	C++	Medium
392	Is Subsequence	C++ C++	Easy
394	Decode String	C++	Medium
396	Rotate Function	C++	Medium
397	Integer Replacement	C++	Medium
399	Evaluate Division	C++	Medium
402	Remove K Digits	C++	Medium
404	Sum of Left Leaves	C++	Easy
406	Queue Reconstruction by Height	C++	Medium
409	Longest Palindrome	C++	Easy
410	Split Array Largest Sum	C++	Hard
412	Fizz Buzz	C++	Easy
413	Arithmetic Slices	C++ C++ C++	Medium
414	Third Maximum Number	C++ C++	Easy
415	Add Strings	C++	Easy
417	Pacific Atlantic Water Flow	C++	Medium
419	Battleships in a Board	C++ C++	Medium
421	Maximum XOR of Two Numbers in an Array	C++	Medium
424	Longest Repeating Character Replacement	C++	Medium
426	Convert Binary Search Tree to Sorted Doubly Linked List	C++	Medium
429	N-ary Tree Level Order Traversal	C++	Medium
430	Flatten a Multilevel Doubly Linked List	C++	Medium
433	Minimum Genetic Mutation	C++	Medium
434	Number of Segments in a String	C++	Easy
435	Non-overlapping Intervals	C++	Medium
437	Path Sum III	C++ C++	Medium
438	Find All Anagrams in a String	C++ C++	Medium
441	Arranging Coins	C++ C++	Easy
442	Find All Duplicates in an Array	C++	Medium
445	Add Two Numbers II	C++	Medium
448	Find All Numbers Disappeared in an Array	C++ C++	Easy
449	Serialize and Deserialize BST	C++	Medium
450	Delete Node in a BST	C++	Medium
451	Sort Characters By Frequency	C++ C++ C++	Medium
452	Minimum Number of Arrows to Burst Balloons	C++ C++	Medium
453	Minimum Moves to Equal Array Elements	C++	Medium
454	4Sum II	C++	Medium
455	Assign Cookies	C++	Easy
456	132 Pattern	C++ C++	Medium
458	Poor Pigs	C++	Hard
459	Repeated Substring Pattern	C++	Easy
460	LFU Cache	C++	Hard
461	Hamming Distance	C++	Easy
462	Minimum Moves to Equal Array Elements II	C++	Medium
463	Island Perimeter	C++ C++	Easy
476	Number Complement	C++	Easy
477	Total Hamming Distance	C++	Medium
485	Max Consecutive Ones	C++	Easy
491	Increasing Subsequences	C++ C++ C++	Medium
492	Construct the Rectangle	C++	Easy
494	Target Sum	C++ C++	Medium
495	Teemo Attacking	C++	Easy
496	Next Greater Element I	C++	Easy
500	Keyboard Row	C++	Easy
501	Find Mode in Binary Search Tree	C++	Easy
502	IPO	C++	Hard
503	Next Greater Element II	C++	Medium
506	Relative Ranks	C++	Easy
507	Perfect Number	C++	Easy
508	Most Frequent Subtree Sum	C++	Medium
509	Fibonacci Number	C++ C++ C++	Easy
510	Inorder Successor in BST II	C++	Medium
513	Find Bottom Left Tree Value	C++ C++	Medium
515	Find Largest Value in Each Tree Row	C++	Medium
518	Coin Change 2	C++	Medium
520	Detect Capital	C++	Easy
523	Continuous Subarray Sum	C++ C++	Medium
524	Longest Word in Dictionary through Deleting	C++	Medium
525	Contiguous Array	C++	Medium
526	Beautiful Arrangement	C++ C++	Medium
530	Minimum Absolute Difference in BST	C++	Easy
532	K-diff Pairs in an Array	C++ C++ C++ C++	Medium
535	Encode and Decode TinyURL	C++	Medium
537	Complex Number Multiplication	C++	Medium
538	Convert BST to Greater Tree	C++ C++ C++ C++	Medium
540	Single Element in a Sorted Array	C++ C++	Medium
541	Reverse String II	C++	Easy
543	Diameter of Binary Tree	C++	Easy
547	Number of Provinces	C++ C++ C++ C++	Medium
551	Student Attendance Record I	C++	Easy
557	Reverse Words in a String III	C++ C++	Easy
559	Maximum Depth of N-ary Tree	C++	Easy
560	Subarray Sum Equals K	C++	Medium
561	Array Partition I	C++	Easy
563	Binary Tree Tilt	C++	Easy
565	Array Nesting	C++	Medium
566	Reshape the Matrix	C++ C++	Easy
567	Permutation in String	C++ C++ C++	Medium
572	Subtree of Another Tree	C++	Easy
575	Distribute Candies	C++	Easy
581	Shortest Unsorted Continuous Subarray	C++ C++	Medium
583	Delete Operation for Two Strings	C++ C++	Medium
589	N-ary Tree Preorder Traversal	C++	Easy
590	N-ary Tree Postorder Traversal	C++	Easy
594	Longest Harmonious Subsequence	C++	Easy
598	Range Addition II	C++	Easy
599	Minimum Index Sum of Two Lists	C++	Easy
605	Can Place Flowers	C++	Easy
606	Construct String from Binary Tree	C++ C++	Easy
609	Find Duplicate File in System	C++	Medium
617	Merge Two Binary Trees	C++	Easy
621	Task Scheduler	C++	Medium
622	Design Circular Queue	C++	Medium
623	Add One Row to Tree	C++	Medium
628	Maximum Product of Three Numbers	C++ C++	Easy
630	Course Schedule III	C++	Hard
637	Average of Levels in Binary Tree	C++ C++ C++	Easy
643	Maximum Average Subarray I	C++	Easy
645	Set Mismatch	C++	Easy
646	Maximum Length of Pair Chain	C++ C++	Medium
647	Palindromic Substrings	C++	Medium
648	Replace Words	C++ C++	Medium
652	Find Duplicate Subtrees	C++	Medium
653	Two Sum IV - Input is a BST	C++ C++ C++	Easy
654	Maximum Binary Tree	C++	Medium
655	Print Binary Tree	C++	Medium
657	Robot Return to Origin	C++	Easy
658	Find K Closest Elements	C++ C++ C++	Medium
662	Maximum Width of Binary Tree	C++	Medium
665	Non-decreasing Array	C++ C++	Medium
669	Trim a Binary Search Tree	C++	Medium
671	Second Minimum Node In a Binary Tree	C++	Easy
674	Longest Continuous Increasing Subsequence	C++	Easy
676	Implement Magic Dictionary	C++	Medium
677	Map Sum Pairs	C++	Medium
680	Valid Palindrome II	C++	Easy
682	Baseball Game	C++	Easy
684	Redundant Connection	C++	Medium
687	Longest Univalue Path	C++	Medium
690	Employee Importance	C++ C++	Easy
692	Top K Frequent Words	C++ C++ C++	Medium
693	Binary Number with Alternating Bits	C++	Easy
694	Number of Distinct Islands	C++	Medium
695	Max Area of Island	C++	Medium
696	Count Binary Substrings	C++	Easy
700	Search in a Binary Search Tree	C++ C++	Easy
701	Insert into a Binary Search Tree	C++ C++	Medium
703	Kth Largest Element in a Stream	C++	Easy
704	Binary Search	C++ C++ C++	Easy
705	Design HashSet	C++ C++	Easy
706	Design HashMap	C++ C++ C++	Easy
707	Design Linked List	C++	Medium
709	To Lower Case	C++	Easy
717	bit and 2-bit Characters	C++	Easy
720	Longest Word in Dictionary	C++ C++ C++ C++ C++ C++	Medium
724	Find Pivot Index	C++ C++	Easy
725	Split Linked List in Parts	C++	Medium
728	Self Dividing Numbers	C++	Easy
733	Flood Fill	C++	Easy
739	Daily Temperatures	C++	Medium
740	Delete and Earn	C++	Medium
743	Network Delay Time	C++	Medium
744	Find Smallest Letter Greater Than Target	C++	Easy
746	Min Cost Climbing Stairs	C++ C++	Easy
747	Largest Number At Least Twice of Others	C++	Easy
748	Shortest Completing Word	C++	Easy
752	Open the Lock	C++	Medium
762	Prime Number of Set Bits in Binary Representation	C++ C++	Easy
763	Partition Labels	C++ C++	Medium
766	Toeplitz Matrix	C++ C++	Easy
771	Jewels and Stones	C++	Easy
781	Rabbits in Forest	C++	Medium
783	Minimum Distance Between BST Nodes	C++	Easy
784	Letter Case Permutation	C++ C++	Medium
785	Is Graph Bipartite?	C++ C++ C++ C++	Medium
789	Escape The Ghosts	C++	Medium
791	Custom Sort String	C++	Medium
796	Rotate String	C++	Easy
797	All Paths From Source to Target	C++	Medium
799	Champagne Tower	C++	Medium
804	Unique Morse Code Words	C++	Easy
806	Number of Lines To Write String	C++	Easy
807	Max Increase to Keep City Skyline	C++	Medium
814	Binary Tree Pruning	C++ C++	Medium
817	Linked List Components	C++	Medium
819	Most Common Word	C++	Easy
821	Shortest Distance to a Character	C++	Easy
824	Goat Latin	C++	Easy
827	Making A Large Island	C++	Hard
830	Positions of Large Groups	C++	Easy
832	Flipping an Image	C++	Easy
834	Sum of Distances in Tree	C++ C++	Hard
836	Rectangle Overlap	C++ C++	Easy
841	Keys and Rooms	C++ C++ C++	Medium
844	Backspace String Compare	C++ C++ C++	Easy
846	Hand of Straights	C++	Medium
847	Shortest Path Visiting All Nodes	C++	Hard
849	Maximize Distance to Closest Person	C++	Medium
852	Peak Index in a Mountain Array	C++ C++	Easy
856	Score of Parentheses	C++ C++	Medium
858	Mirror Reflection	C++ C++	Medium
860	Lemonade Change	C++	Easy
863	All Nodes Distance K in Binary Tree	C++	Medium
865	Smallest Subtree with all the Deepest Nodes	C++	Medium
867	Transpose Matrix	C++	Easy
869	Reordered Power of 2	C++	Medium
870	Advantage Shuffle	C++	Medium
872	Leaf-Similar Trees	C++	Easy
875	Koko Eating Bananas	C++	Medium
876	Middle of the Linked List	C++	Easy
877	Stone Game	C++ C++	Medium
881	Boats to Save People	C++ C++ C++ C++	Medium
884	Uncommon Words from Two Sentences	C++	Easy
886	Possible Bipartition	C++ C++ C++ C++	Medium
888	Fair Candy Swap	C++	Easy
893	Groups of Special-Equivalent Strings	C++	Medium
895	Maximum Frequency Stack	C++	Hard
896	Monotonic Array	C++ C++	Easy
897	Increasing Order Search Tree	C++ C++ C++	Easy
901	Online Stock Span	C++	Medium
904	Fruit Into Baskets	C++ C++	Medium
905	Sort Array By Parity	C++ C++ C++ C++ C++	Easy
908	Smallest Range I	C++	Easy
912	Sort an Array	C++ C++	Medium
916	Word Subsets	C++	Medium
917	Reverse Only Letters	C++	Easy
918	Maximum Sum Circular Subarray	C++	Medium
919	Complete Binary Tree Inserter	C++	Medium
921	Minimum Add to Make Parentheses Valid	C++	Medium
922	Sort Array By Parity II	C++	Easy
923	Sum With Multiplicity	C++	Medium
925	Long Pressed Name	C++	Easy
929	Unique Email Addresses	C++	Easy
930	Binary Subarrays With Sum	C++	Medium
931	Minimum Falling Path Sum	C++ C++ C++	Medium
933	Number of Recent Calls	C++	Easy
934	Shortest Bridge	C++ C++	Medium
938	Range Sum of BST	C++ C++ C++ C++	Easy
941	Valid Mountain Array	C++	Easy
942	DI String Match	C++	Easy
944	Delete Columns to Make Sorted	C++	Easy
946	Validate Stack Sequences	C++ C++	Medium
948	Bag of Tokens	C++	Medium
951	Flip Equivalent Binary Trees	C++ C++	Medium
953	Verifying an Alien Dictionary	C++ C++	Easy
958	Check Completeness of a Binary Tree	C++	Medium
961	N-Repeated Element in Size 2N Array	C++ C++	Easy
965	Univalued Binary Tree	C++	Easy
967	Numbers With Same Consecutive Differences	C++ C++	Medium
968	Binary Tree Cameras	C++	Hard
969	Pancake Sorting	C++	Medium
971	Flip Binary Tree To Match Preorder Traversal	C++	Medium
973	K Closest Points to Origin	C++	Medium
974	Subarray Sums Divisible by K	C++	Medium
976	Largest Perimeter Triangle	C++	Easy
977	Squares of a Sorted Array	C++	Easy
979	Distribute Coins in Binary Tree	C++	Medium
980	Unique Paths III	C++	Hard
981	Time Based Key-Value Store	C++	Medium
985	Sum of Even Numbers After Queries	C++	Medium
986	Interval List Intersections	C++	Medium
987	Vertical Order Traversal of a Binary Tree	C++	Hard
988	Smallest String Starting From Leaf	C++	Medium
989	Add to Array-Form of Integer	C++	Easy
990	Satisfiability of Equality Equations	C++	Medium
991	Broken Calculator	C++ C++	Medium
992	Subarrays with K Different Integers	C++	Hard
993	Cousins in Binary Tree	C++	Easy
994	Rotting Oranges	C++	Medium
997	Find the Town Judge	C++ C++	Easy
998	Maximum Binary Tree II	C++	Medium
999	Available Captures for Rook	C++	Easy
1002	Find Common Characters	C++	Easy
1004	Max Consecutive Ones III	C++	Medium
1005	Maximize Sum Of Array After K Negations	C++	Easy
1006	Clumsy Factorial	C++	Medium
1007	Minimum Domino Rotations For Equal Row	C++	Medium
1008	Construct Binary Search Tree from Preorder Traversal	C++	Medium
1009	Complement of Base 10 Integer	C++	Easy
1010	Pairs of Songs With Total Durations Divisible by 60	C++ C++	Medium
1013	Partition Array Into Three Parts With Equal Sum	C++	Easy
1018	Binary Prefix Divisible By 5	C++	Easy
1019	Next Greater Node In Linked List	C++ C++	Medium
1020	Number of Enclaves	C++	Medium
1021	Remove Outermost Parentheses	C++	Easy
1022	Sum of Root To Leaf Binary Numbers	C++ C++	Easy
1023	Camelcase Matching	C++ C++	Medium
1025	Divisor Game	C++	Easy
1026	Maximum Difference Between Node and Ancestor	C++	Medium
1029	Two City Scheduling	C++ C++	Medium
1033	Moving Stones Until Consecutive	C++	Easy
1037	Valid Boomerang	C++	Easy
1038	Binary Search Tree to Greater Sum Tree	C++	Medium
1041	Robot Bounded In Circle	C++	Medium
1046	Last Stone Weight	C++	Easy
1047	Remove All Adjacent Duplicates In String	C++	Easy
1048	Longest String Chain	C++	Medium
1051	Height Checker	C++	Easy
1061	Lexicographically Smallest Equivalent String	C++ C++	Medium
1078	Occurrences After Bigram	C++	Easy
1079	Letter Tile Possibilities	C++	Medium
1081	Smallest Subsequence of Distinct Characters	C++ C++ C++	Medium
1089	Duplicate Zeros	C++	Easy
1090	Largest Values From Labels	C++	Medium
1091	Shortest Path in Binary Matrix	C++	Medium
1094	Car Pooling	C++ C++	Medium
1100	Find K-Length Substrings With No Repeated Characters	C++	Medium
1103	Distribute Candies to People	C++	Easy
1104	Path In Zigzag Labelled Binary Tree	C++	Medium
1108	Defanging an IP Address	C++	Easy
1109	Corporate Flight Bookings	C++	Medium
1110	Delete Nodes And Return Forest	C++	Medium
1119	Remove Vowels from a String	C++	Easy
1122	Relative Sort Array	C++	Easy
1123	Lowest Common Ancestor of Deepest Leaves	C++	Medium
1128	Number of Equivalent Domino Pairs	C++	Easy
1129	Shortest Path with Alternating Colors	C++	Medium
1137	N-th Tribonacci Number	C++ C++	Easy
1143	Longest Common Subsequence	C++ C++ C++ C++	Medium
1160	Find Words That Can Be Formed by Characters	C++	Easy
1161	Maximum Level Sum of a Binary Tree	C++	Medium
1162	As Far from Land as Possible	C++	Medium
1167	Minimum Cost to Connect Sticks	C++	Medium
1170	Compare Strings by Frequency of the Smallest Character	C++	Medium
1171	Remove Zero Sum Consecutive Nodes from Linked List	C++	Medium
1184	Distance Between Bus Stops	C++	Easy
1189	Maximum Number of Balloons	C++ C++	Easy
1190	Reverse Substrings Between Each Pair of Parentheses	C++ C++ C++	Medium
1192	Critical Connections in a Network	C++	Hard
1200	Minimum Absolute Difference	C++	Easy
1201	Ugly Number III	C++	Medium
1202	Smallest String With Swaps	C++	Medium
1207	Unique Number of Occurrences	C++ C++	Easy
1209	Remove All Adjacent Duplicates in String II	C++	Medium
1217	Minimum Cost to Move Chips to The Same Position	C++	Easy
1219	Path with Maximum Gold	C++	Medium
1221	Split a String in Balanced Strings	C++ C++	Easy
1227	Airplane Seat Assignment Probability	C++	Medium
1232	Check If It Is a Straight Line	C++	Easy
1233	Remove Sub-Folders from the Filesystem	C++	Medium
1237	Find Positive Integer Solution for a Given Equation	C++	Medium
1239	Maximum Length of a Concatenated String with Unique Characters	C++ C++	Medium
1247	Minimum Swaps to Make Strings Equal	C++	Medium
1248	Count Number of Nice Subarrays	C++ C++	Medium
1249	Minimum Remove to Make Valid Parentheses	C++ C++ C++	Medium
1254	Number of Closed Islands	C++	Medium
1260	Shift 2D Grid	C++ C++	Easy
1261	Find Elements in a Contaminated Binary Tree	C++	Medium
1266	Minimum Time Visiting All Points	C++	Easy
1267	Count Servers that Communicate	C++ C++	Medium
1268	Search Suggestions System	C++ C++ C++ C++ C++ C++	Medium
1281	Subtract the Product and Sum of Digits of an Integer	C++	Easy
1282	Group the People Given the Group Size They Belong To	C++ C++	Medium
1286	Iterator for Combination	C++	Medium
1287	Element Appearing More Than 25% In Sorted Array	C++ C++ C++	Easy
1288	Remove Covered Intervals	C++ C++ C++	Medium
1290	Convert Binary Number in a Linked List to Integer	C++	Easy
1291	Sequential Digits	C++ C++	Medium
1295	Find Numbers with Even Number of Digits	C++	Easy
1296	Divide Array in Sets of K Consecutive Numbers	C++	Medium
1299	Replace Elements with Greatest Element on Right Side	C++ C++	Easy
1302	Deepest Leaves Sum	C++ C++ C++	Medium
1304	Find N Unique Integers Sum up to Zero	C++	Easy
1305	All Elements in Two Binary Search Trees	C++ C++ C++ C++	Medium
1309	Decrypt String from Alphabet to Integer Mapping	C++	Easy
1313	Decompress Run-Length Encoded List	C++	Easy
1315	Sum of Nodes with Even-Valued Grandparent	C++	Medium
1317	Convert Integer to the Sum of Two No-Zero Integers	C++	Easy
1319	Number of Operations to Make Network Connected	C++	Medium
1323	Maximum 69 Number	C++	Easy
1324	Print Words Vertically	C++	Medium
1325	Delete Leaves With a Given Value	C++	Medium
1328	Break a Palindrome	C++ C++	Medium
1329	Sort the Matrix Diagonally	C++	Medium
1331	Rank Transform of an Array	C++	Easy
1332	Remove Palindromic Subsequences	C++	Easy
1337	The K Weakest Rows in a Matrix	C++ C++ C++ C++ C++ C++ C++ C++	Easy
1338	Reduce Array Size to The Half	C++ C++	Medium
1339	Maximum Product of Splitted Binary Tree	C++ C++	Medium
1342	Number of Steps to Reduce a Number to Zero	C++	Easy
1343	Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold	C++	Medium
1345	Jump Game IV	C++	Hard
1346	Check If N and Its Double Exist	C++ C++	Easy
1347	Minimum Number of Steps to Make Two Strings Anagram	C++ C++ C++ C++	Medium
1351	Count Negative Numbers in a Sorted Matrix	C++	Easy
1352	Product of the Last K Numbers	C++	Medium
1356	Sort Integers by The Number of 1 Bits	C++	Easy
1357	Apply Discount Every n Orders	C++	Medium
1358	Number of Substrings Containing All Three Characters	C++ C++	Medium
1359	Count All Valid Pickup and Delivery Options	C++	Hard
1361	Validate Binary Tree Nodes	C++	Medium
1365	How Many Numbers Are Smaller Than the Current Number	C++ C++	Easy
1367	Linked List in Binary Tree	C++	Medium
1371	Find the Longest Substring Containing Vowels in Even Counts	C++	Medium
1374	Generate a String With Characters That Have Odd Counts	C++ C++	Easy
1376	Time Needed to Inform All Employees	C++ C++	Medium
1379	Find a Corresponding Node of a Binary Tree in a Clone of That Tree	C++ C++	Easy
1380	Lucky Numbers in a Matrix	C++ C++	Easy
1381	Design a Stack With Increment Operation	C++	Medium
1382	Balance a Binary Search Tree	C++	Medium
1383	Maximum Performance of a Team	C++	Hard
1385	Find the Distance Value Between Two Arrays	C++	Easy
1387	Sort Integers by The Power Value	C++ C++	Medium
1389	Create Target Array in the Given Order	C++	Easy
1394	Find Lucky Integer in an Array	C++	Easy
1395	Count Number of Teams	C++	Medium
1396	Design Underground System	C++ C++	Medium
1399	Count Largest Group	C++ C++	Easy
1403	Minimum Subsequence in Non-Increasing Order	C++	Easy
1408	String Matching in an Array	C++	Easy
1409	Queries on a Permutation With Key	C++	Medium
1413	Minimum Value to Get Positive Step by Step Sum	C++	Easy
1414	Find the Minimum Number of Fibonacci Numbers Whose Sum Is K	C++	Medium
1415	The k-th Lexicographical String of All Happy Strings of Length n	C++	Medium
1417	Reformat The String	C++	Easy
1418	Display Table of Food Orders in a Restaurant	C++	Medium
1422	Maximum Score After Splitting a String	C++	Easy
1423	Maximum Points You Can Obtain from Cards	C++	Medium
1426	Counting Elements	C++ C++	Easy
1431	Kids With the Greatest Number of Candies	C++	Easy
1436	Destination City	C++ C++	Easy
1437	Check If All 1's Are at Least Length K Places Away	C++	Easy
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	C++	Medium
1441	Build an Array With Stack Operations	C++	Easy
1443	Minimum Time to Collect All Apples in a Tree	C++ C++	Medium
1446	Consecutive Characters	C++	Easy
1447	Simplified Fractions	C++	Medium
1448	Count Good Nodes in Binary Tree	C++ C++	Medium
1450	Number of Students Doing Homework at a Given Time	C++	Easy
1451	Rearrange Words in a Sentence	C++ C++ C++ C++	Medium
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	C++	Easy
1456	Maximum Number of Vowels in a Substring of Given Length	C++ C++	Medium
1457	Pseudo-Palindromic Paths in a Binary Tree	C++ C++	Medium
1460	Make Two Arrays Equal by Reversing Sub-arrays	C++ C++	Easy
1461	Check If a String Contains All Binary Codes of Size K	C++ C++	Medium
1463	Cherry Pickup II	C++ C++ C++	Hard
1464	Maximum Product of Two Elements in an Array	C++	Easy
1465	Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts	C++ C++	Medium
1466	Reorder Routes to Make All Paths Lead to the City Zero	C++	Medium
1469	Find All The Lonely Nodes	C++	Easy
1470	Shuffle the Array	C++	Easy
1471	The k Strongest Values in an Array	C++ C++	Medium
1472	Design Browser History	C++	Medium
1475	Final Prices With a Special Discount in a Shop	C++	Easy
1476	Subrectangle Queries	C++	Medium
1480	Running Sum of 1d Array	C++	Easy
1486	XOR Operation in an Array	C++	Easy
1487	Making File Names Unique	C++	Medium
1491	Average Salary Excluding the Minimum and Maximum Salary	C++	Easy
1492	The kth Factor of n	C++	Medium
1493	Longest Subarray of 1's After Deleting One Element	C++ C++	Medium
1496	Path Crossing	C++ C++	Easy
1502	Can Make Arithmetic Progression From Sequence	C++	Easy
1507	Reformat Date	C++ C++	Easy
1508	Range Sum of Sorted Subarray Sums	C++	Medium
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	C++	Medium
1510	Stone Game IV	C++ C++	Hard
1512	Number of Good Pairs	C++	Easy
1518	Water Bottles	C++	Easy
1519	Number of Nodes in the Sub-Tree With the Same Label	C++	Medium
1523	Count Odd Numbers in an Interval Range	C++	Easy
1524	Number of Sub-arrays With Odd Sum	C++	Medium
1528	Shuffle String	C++	Easy
1530	Number of Good Leaf Nodes Pairs	C++	Medium
1534	Count Good Triplets	C++	Easy
1535	Find the Winner of an Array Game	C++	Medium
1539	Kth Missing Positive Number	C++	Easy
1544	Make The String Great	C++	Easy
1545	Find Kth Bit in Nth Binary String	C++ C++	Medium
1546	Maximum Number of Non-Overlapping Subarrays With Sum Equals Target	C++	Medium
1550	Three Consecutive Odds	C++	Easy
1551	Minimum Operations to Make Array Equal	C++	Medium
1552	Magnetic Force Between Two Balls	C++	Medium
1556	Thousand Separator	C++	Easy
1557	Minimum Number of Vertices to Reach All Nodes	C++ C++ C++	Medium
1558	Minimum Numbers of Function Calls to Make Target Array	C++	Medium
1561	Maximum Number of Coins You Can Get	C++	Medium
1566	Detect Pattern of Length M Repeated K or More Times	C++	Easy
1567	Maximum Length of Subarray With Positive Product	C++	Medium
1572	Matrix Diagonal Sum	C++ C++	Easy
1578	Minimum Deletion Cost to Avoid Repeating Letters	C++ C++ C++	Medium
1582	Special Positions in a Binary Matrix	C++	Easy
1584	Min Cost to Connect All Points	C++ C++	Medium
1588	Sum of All Odd Length Subarrays	C++	Easy
1590	Make Sum Divisible by P	C++	Medium
1598	Crawler Log Folder	C++ C++	Easy
1602	Find Nearest Right Node in Binary Tree	C++ C++	Medium
1603	Design Parking System	C++	Easy
1605	Find Valid Matrix Given Row and Column Sums	C++	Medium
1608	Special Array With X Elements Greater Than or Equal X	C++	Easy
1609	Even Odd Tree	C++	Medium
1614	Maximum Nesting Depth of the Parentheses	C++	Easy
1616	Split Two Strings to Make Palindrome	C++	Medium
1619	Mean of Array After Removing Some Elements	C++	Easy
1624	Largest Substring Between Two Equal Characters	C++	Easy
1626	Best Team With No Conflicts	C++	Medium
1629	Slowest Key	C++	Easy
1631	Path With Minimum Effort	C++	Medium
1636	Sort Array by Increasing Frequency	C++	Easy
1637	Widest Vertical Area Between Two Points Containing No Points	C++	Medium
1640	Check Array Formation Through Concatenation	C++	Easy
1641	Count Sorted Vowel Strings	C++ C++ C++ C++	Medium
1642	Furthest Building You Can Reach	C++	Medium
1646	Get Maximum in Generated Array	C++	Easy
1647	Minimum Deletions to Make Character Frequencies Unique	C++	Medium
1652	Defuse the Bomb	C++	Easy
1653	Minimum Deletions to Make String Balanced	C++	Medium
1656	Design an Ordered Stream	C++	Easy
1657	Determine if Two Strings Are Close	C++ C++	Medium
1658	Minimum Operations to Reduce X to Zero	C++	Medium
1662	Check If Two String Arrays are Equivalent	C++	Easy
1663	Smallest String With A Given Numeric Value	C++ C++ C++ C++	Medium
1668	Maximum Repeating Substring	C++	Easy
1669	Merge In Between Linked Lists	C++	Medium
1672	Richest Customer Wealth	C++	Easy
1675	Minimize Deviation in Array	C++ C++	Hard
1678	Goal Parser Interpretation	C++	Easy
1679	Max Number of K-Sum Pairs	C++ C++ C++ C++	Medium
1684	Count the Number of Consistent Strings	C++ C++	Easy
1685	Sum of Absolute Differences in a Sorted Array	C++	Medium
1688	Count of Matches in Tournament	C++ C++	Easy
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers	C++	Medium
1695	Maximum Erasure Value	C++ C++ C++	Medium
1696	Jump Game VI	C++	Medium
1700	Number of Students Unable to Eat Lunch	C++	Easy
1701	Average Waiting Time	C++	Medium
1704	Determine if String Halves Are Alike	C++	Easy
1710	Maximum Units on a Truck	C++	Easy
1716	Calculate Money in Leetcode Bank	C++	Easy
1720	Decode XORed Array	C++	Easy
1721	Swapping Nodes in a Linked List	C++ C++ C++	Medium
1725	Number Of Rectangles That Can Form The Largest Square	C++ C++	Easy
1726	Tuple with Same Product	C++	Medium
1732	Find the Highest Altitude	C++	Easy
1736	Latest Time by Replacing Hidden Digits	C++	Easy
1743	Restore the Array From Adjacent Pairs	C++ C++	Medium
1748	Sum of Unique Elements	C++	Easy
1749	Maximum Absolute Sum of Any Subarray	C++	Medium
1752	Check if Array Is Sorted and Rotated	C++	Easy
1753	Maximum Score From Removing Stones	C++	Medium
1758	Minimum Changes To Make Alternating Binary String	C++	Easy
1765	Map of Highest Peak	C++ C++	Medium
1768	Merge Strings Alternately	C++ C++	Easy
1769	Minimum Number of Operations to Move All Balls to Each Box	C++	Medium
1770	Maximum Score from Performing Multiplication Operations	C++	Medium
1773	Count Items Matching a Rule	C++ C++	Easy
1779	Find Nearest Point That Has the Same X or Y Coordinate	C++	Easy
1780	Check if Number is a Sum of Powers of Three	C++	Medium
1784	Check if Binary String Has at Most One Segment of Ones	C++	Easy
1785	Minimum Elements to Add to Form a Given Sum	C++	Medium
1790	Check if One String Swap Can Make Strings Equal	C++	Easy
1791	Find Center of Star Graph	C++ C++	Medium
1792	Maximum Average Pass Ratio	C++	Medium
1796	Second Largest Digit in a String	C++	Easy
1798	Maximum Number of Consecutive Values You Can Make	C++	Medium
1800	Maximum Ascending Subarray Sum	C++ C++	Easy
1805	Number of Different Integers in a String	C++	Easy
1807	Evaluate the Bracket Pairs of a String	C++	Medium
1812	Determine Color of a Chessboard Square	C++	Easy
1814	Count Nice Pairs in an Array	C++ C++	Medium
1816	Truncate Sentence	C++	Easy
1817	Finding the Users Active Minutes	C++	Medium
1818	Minimum Absolute Sum Difference	C++	Medium
1822	Sign of the Product of an Array	C++	Easy
1827	Minimum Operations to Make the Array Increasing	C++	Easy
1828	Queries on Number of Points Inside a Circle	C++	Medium
1832	Check if the Sentence Is Pangram	C++ C++	Easy
1833	Maximum Ice Cream Bars	C++ C++	Medium
1834	Single-Threaded CPU	C++ C++ C++	Medium
1837	Sum of Digits in Base K	C++	Easy
1844	Replace All Digits with Characters	C++	Easy
1845	Seat Reservation Manager	C++	Medium
1848	Minimum Distance to the Target Element	C++ C++	Easy
1859	Sorting the Sentence	C++	Easy
1861	Rotating the Box	C++	Medium
1863	Sum of All Subset XOR Totals	C++	Easy
1869	Longer Contiguous Segments of Ones than Zeros	C++ C++	Easy
1876	Substrings of Size Three with Distinct Characters	C++	Easy
1877	Minimize Maximum Pair Sum in Array	C++	Medium
1880	Check if Word Equals Summation of Two Words	C++	Easy
1897	Redistribute Characters to Make All Strings Equal	C++	Easy
1903	Largest Odd Number in String	C++	Easy
1905	Count Sub Islands	C++	Medium
1909	Remove One Element to Make the Array Strictly Increasing	C++	Easy
1910	Remove All Occurrences of a Substring	C++ C++	Medium
1913	Maximum Product Difference Between Two Pairs	C++ C++	Easy
1920	Build Array from Permutation	C++	Easy
1929	Concatenation of Array	C++ C++	Easy
1935	Maximum Number of Words You Can Type	C++ C++	Easy
1941	Check if All Characters Have Equal Number of Occurrences	C++ C++	Easy
1945	Sum of Digits of String After Convert	C++	Easy
1952	Three Divisors	C++ C++	Easy
1957	Delete Characters to Make Fancy String	C++	Easy
1961	Check If String Is a Prefix of Array	C++ C++	Easy
1962	Remove Stones to Minimize the Total	C++	Medium
1967	Number of Strings That Appear as Substrings in Word	C++ C++ C++	Easy
1971	Find if Path Exists in Graph	C++ C++ C++	Easy
1974	Minimum Time to Type Word Using Special Typewriter	C++ C++	Easy
1979	Find Greatest Common Divisor of Array	C++	Easy
1991	Find the Middle Index in Array	C++ C++	Easy
1992	Find All Groups of Farmland	C++	Medium
1996	The Number of Weak Characters in the Game	C++	Medium
2000	Reverse Prefix of Word	C++ C++	Easy
2006	Count Number of Pairs With Absolute Difference K	C++ C++ C++	Easy
2007	Find Original Array From Doubled Array	C++ C++ C++	Medium
2011	Final Value of Variable After Performing Operations	C++ C++	Easy
2016	Maximum Difference Between Increasing Elements	C++	Easy
2022	Convert 1D Array Into 2D Array	C++	Easy
2032	Two Out of Three	C++ C++ C++ C++	Easy
2037	Minimum Number of Moves to Seat Everyone	C++	Easy
2042	Check if Numbers Are Ascending in a Sentence	C++	Easy
2044	Count Number of Maximum Bitwise-OR Subsets	C++ C++ C++	Medium
2057	Smallest Index With Equal Value	C++	Easy
2073	Time Needed to Buy Tickets	C++ C++ C++	Easy
2079	Watering Plants	C++	Medium
2095	Delete the Middle Node of a Linked List	C++ C++	Medium
2105	Watering Plants II	C++	Medium
2120	Execution of All Suffix Instructions Staying in a Grid	C++	Medium
2125	Number of Laser Beams in a Bank	C++	Medium
2215	Find the Difference of Two Arrays	C++	Easy
2225	Find Players With Zero or One Losses	C++ C++	Medium
2231	Largest Number After Digit Swaps by Parity	C++ C++ C++	Easy
2244	Minimum Rounds to Complete All Tasks	C++ C++	Medium
2246	Longest Path With Different Adjacent Characters	C++ C++	Hard
2256	Minimum Average Difference	C++	Medium
2279	Maximum Bags With Full Capacity of Rocks	C++	Medium
2389	Longest Subsequence With Limited Sum	C++	Easy
2413	Smallest Even Multiple	C++	Easy
2414	Length of the Longest Alphabetical Continuous Substring	C++	Medium
2415	Reverse Odd Levels of Binary Tree	C++ C++	Medium
2416	Sum of Prefix Scores of Strings	C++	Hard
2423	Remove Letter To Equalize Frequency	C++	Easy
2424	Longest Uploaded Prefix	C++ C++	Medium
2427	Number of Common Factors	C++	Easy
2428	Maximum Sum of an Hourglass	C++	Medium
2432	The Employee That Worked on the Longest Task	C++ C++	Easy
2433	Find The Original Array of Prefix Xor	C++	Medium
2437	Number of Valid Clock Times	C++	Easy
2441	Largest Positive Integer That Exists With Its Negative	C++	Easy
2442	Count Number of Distinct Integers After Reverse Operations	C++	Medium
2443	Sum of Number and Its Reverse	C++	Medium
2446	Determine if Two Events Have Conflict	C++	Easy
2447	Number of Subarrays With GCD Equal to K	C++	Medium
2448	Minimum Cost to Make Array Equal	C++ C++	Hard
2451	Odd String Difference	C++	Easy
2452	Words Within Two Edits of Dictionary	C++ C++	Medium
2453	Destroy Sequential Targets	C++	Medium
2455	Average Value of Even Numbers That Are Divisible by Three	C++	Easy
2456	Most Popular Video Creator	C++ C++	Medium
2458	Height of Binary Tree After Subtree Removal Queries	C++	Hard
2460	Apply Operations to an Array	C++	Easy
2461	Maximum Sum of Distinct Subarrays With Length K	C++	Medium
2462	Total Cost to Hire K Workers	C++	Medium
2465	Number of Distinct Averages	C++	Easy
2469	Convert the Temperature	C++	Easy
2470	Number of Subarrays With LCM Equal to K	C++	Medium
2475	Number of Unequal Triplets in Array	C++	Easy
2476	Closest Nodes Queries in a Binary Search Tree	C++	Medium
2481	Minimum Cuts to Divide a Circle	C++	Easy
2482	Difference Between Ones and Zeros in Row and Column	C++ C++	Medium
2483	Minimum Penalty for a Shop	C++ C++	Medium
2485	Find the Pivot Integer	C++	Easy
2486	Append Characters to String to Make Subsequence	C++	Medium
2487	Remove Nodes From Linked List	C++ C++	Medium
2490	Circular Sentence	C++	Easy
2491	Divide Players Into Teams of Equal Skill	C++	Medium
2492	Minimum Score of a Path Between Two Cities	C++ C++	Medium
2496	Maximum Value of a String in an Array	C++	Easy
2497	Maximum Star Sum of a Graph	C++	Medium
2500	Delete Greatest Value in Each Row	C++	Easy
2501	Longest Square Streak in an Array	C++	Medium
2502	Design Memory Allocator	C++	Medium
2506	Count Pairs Of Similar Strings	C++	Easy
2508	Add Edges to Make Degrees of All Nodes Even	C++	Hard
2509	Cycle Length Queries in a Tree	C++ C++	Hard
2511	Maximum Enemy Forts That Can Be Captured	C++	Easy
2512	Reward Top K Students	C++	Medium
2515	Shortest Distance to Target String in a Circular Array	C++	Easy
2520	Count the Digits That Divide a Number	C++	Easy
2521	Distinct Prime Factors of Product of Array	C++	Medium
2522	Partition String Into Substrings With Values at Most K	C++ C++	Medium
2525	Categorize Box According to Criteria	C++	Easy
2526	Find Consecutive Integers from a Data Stream	C++	Medium
2527	Find Xor-Beauty of Array	C++	Medium
2529	Maximum Count of Positive Integer and Negative Integer	C++	Easy
2530	Maximal Score After Applying K Operations	C++	Medium
2531	Make Number of Distinct Characters Equal	C++	Medium
2535	Difference Between Element Sum and Digit Sum of an Array	C++	Easy

Contribution 🤝

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