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❤️ Last update time: 10/31/2022, 10:53:05 AM

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ID	Title	Acceptance	Difficulty	Tags	Answers
1	Two Sum	49.1%		Array | Hash Table	Java | JavaScript
2	Add Two Numbers	39.7%		Linked List | Math | Recursion	Java
3	Longest Substring Without Repeating Characters	33.8%		Hash Table | String | Sliding Window	Java
4	Median of Two Sorted Arrays	35.2%		Array | Binary Search | Divide and Conquer	Java
5	Longest Palindromic Substring	32.4%		String | Dynamic Programming	Java
6	Zigzag Conversion	43.1%		String	Java
7	Reverse Integer	27.2%		Math	Java
8	String to Integer (atoi)	16.6%		String	Java
9	Palindrome Number	52.9%		Math	Java | JavaScript
11	Container With Most Water	54.3%		Array | Two Pointers | Greedy	Java
13	Roman to Integer	58.2%		Hash Table | Math | String	Java
14	Longest Common Prefix	40.8%		String	Java
15	3Sum	32.3%		Array | Two Pointers | Sorting	Java
17	Letter Combinations of a Phone Number	55.6%		Hash Table | String | Backtracking	Java
18	4Sum	36.5%		Array | Two Pointers | Sorting	Java
19	Remove Nth Node From End of List	39.9%		Linked List | Two Pointers	Java
20	Valid Parentheses	40.7%		String | Stack	Java
21	Merge Two Sorted Lists	61.8%		Linked List | Recursion	Java
22	Generate Parentheses	71.8%		String | Dynamic Programming | Backtracking	Java
23	Merge k Sorted Lists	48.4%		Linked List | Divide and Conquer | Heap (Priority Queue) | Merge Sort	Java
24	Swap Nodes in Pairs	60.3%		Linked List | Recursion	Java
29	Divide Two Integers	17.3%		Math | Bit Manipulation	Java
31	Next Permutation	37.1%		Array | Two Pointers	Java
33	Search in Rotated Sorted Array	38.6%		Array | Binary Search	Java
34	Find First and Last Position of Element in Sorted Array	41.5%		Array | Binary Search	Java
35	Search Insert Position	42.0%		Array | Binary Search	Java
36	Valid Sudoku	56.8%		Array | Hash Table | Matrix	Java
39	Combination Sum	67.6%		Array | Backtracking	Java
40	Combination Sum II	53.3%		Array | Backtracking	Java
42	Trapping Rain Water	58.8%		Array | Two Pointers | Dynamic Programming | Stack | Monotonic Stack	Java
45	Jump Game II	38.6%		Array | Dynamic Programming | Greedy	Java
46	Permutations	74.7%		Array | Backtracking	Java
47	Permutations II	56.7%		Array | Backtracking	Java
48	Rotate Image	69.9%		Array | Math | Matrix	Java
49	Group Anagrams	66.4%		Array | Hash Table | String | Sorting	Java
50	Pow(x, n)	32.8%		Math | Recursion	Java
53	Maximum Subarray	50.0%		Array | Divide and Conquer | Dynamic Programming	Java
54	Spiral Matrix	43.7%		Array | Matrix | Simulation	Java
55	Jump Game	38.4%		Array | Dynamic Programming | Greedy	Java
56	Merge Intervals	45.9%		Array | Sorting	Java
62	Unique Paths	62.2%		Math | Dynamic Programming | Combinatorics	Java
63	Unique Paths II	39.1%		Array | Dynamic Programming | Matrix	Java
66	Plus One	43.3%		Array | Math	Java
69	Sqrt(x)	37.0%		Math | Binary Search	Java
70	Climbing Stairs	51.7%		Math | Dynamic Programming | Memoization	Java
72	Edit Distance	52.6%		String | Dynamic Programming	Java
73	Set Matrix Zeroes	50.0%		Array | Hash Table | Matrix	Java
74	Search a 2D Matrix	46.8%		Array | Binary Search | Matrix	Java
75	Sort Colors	57.2%		Array | Two Pointers | Sorting	Java
76	Minimum Window Substring	40.7%		Hash Table | String | Sliding Window	Java
77	Combinations	66.1%		Backtracking	Java
78	Subsets	73.8%		Array | Backtracking | Bit Manipulation	Java
79	Word Search	39.8%		Array | Backtracking | Matrix	Java
80	Remove Duplicates from Sorted Array II	51.5%		Array | Two Pointers	Java
81	Search in Rotated Sorted Array II	35.7%		Array | Binary Search	Java
82	Remove Duplicates from Sorted List II	45.4%		Linked List | Two Pointers	Java
83	Remove Duplicates from Sorted List	49.9%		Linked List	Java
84	Largest Rectangle in Histogram	42.1%		Array | Stack | Monotonic Stack	Java
85	Maximal Rectangle	44.1%		Array | Dynamic Programming | Stack | Matrix | Monotonic Stack	Java
88	Merge Sorted Array	45.7%		Array | Two Pointers | Sorting	Java
90	Subsets II	55.3%		Array | Backtracking | Bit Manipulation	Java
91	Decode Ways	32.2%		String | Dynamic Programming	Java
92	Reverse Linked List II	45.4%		Linked List	Java
94	Binary Tree Inorder Traversal	73.0%		Stack | Tree | Depth-First Search | Binary Tree	Java
97	Interleaving String	37.1%		String | Dynamic Programming	Java
98	Validate Binary Search Tree	31.7%		Tree | Depth-First Search | Binary Search Tree | Binary Tree	Java
99	Recover Binary Search Tree	50.3%		Tree | Depth-First Search | Binary Search Tree | Binary Tree	Java
100	Same Tree	56.3%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
101	Symmetric Tree	52.9%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
102	Binary Tree Level Order Traversal	63.2%		Tree | Breadth-First Search | Binary Tree	Java
103	Binary Tree Zigzag Level Order Traversal	55.1%		Tree | Breadth-First Search | Binary Tree	Java
104	Maximum Depth of Binary Tree	73.1%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
105	Construct Binary Tree from Preorder and Inorder Traversal	60.7%		Array | Hash Table | Divide and Conquer | Tree | Binary Tree	Java
108	Convert Sorted Array to Binary Search Tree	69.0%		Array | Divide and Conquer | Tree | Binary Search Tree | Binary Tree	Java
109	Convert Sorted List to Binary Search Tree	57.3%		Linked List | Divide and Conquer | Tree | Binary Search Tree | Binary Tree	Java
110	Balanced Binary Tree	48.2%		Tree | Depth-First Search | Binary Tree	Java
111	Minimum Depth of Binary Tree	43.5%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
112	Path Sum	47.6%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
113	Path Sum II	56.6%		Backtracking | Tree | Depth-First Search | Binary Tree	Java
115	Distinct Subsequences	43.7%		String | Dynamic Programming	Java
118	Pascal's Triangle	69.1%		Array | Dynamic Programming	Java
120	Triangle	53.9%		Array | Dynamic Programming	Java
121	Best Time to Buy and Sell Stock	54.5%		Array | Dynamic Programming	Java
122	Best Time to Buy and Sell Stock II	63.3%		Array | Dynamic Programming | Greedy	Java
123	Best Time to Buy and Sell Stock III	44.8%		Array | Dynamic Programming	Java
124	Binary Tree Maximum Path Sum	38.4%		Dynamic Programming | Tree | Depth-First Search | Binary Tree	Java
125	Valid Palindrome	43.5%		Two Pointers | String	Java
127	Word Ladder	36.6%		Hash Table | String | Breadth-First Search	Java
128	Longest Consecutive Sequence	48.9%		Array | Hash Table | Union Find	Java
130	Surrounded Regions	35.9%		Array | Depth-First Search | Breadth-First Search | Union Find | Matrix	Java
131	Palindrome Partitioning	62.4%		String | Dynamic Programming | Backtracking	Java
133	Clone Graph	50.6%		Hash Table | Depth-First Search | Breadth-First Search | Graph	Java
134	Gas Station	45.1%		Array | Greedy	Java
135	Candy	40.7%		Array | Greedy	Java
136	Single Number	70.0%		Array | Bit Manipulation	Java
138	Copy List with Random Pointer	50.5%		Hash Table | Linked List	Java
139	Word Break	45.4%		Hash Table | String | Dynamic Programming | Trie | Memoization	Java
141	Linked List Cycle	46.9%		Hash Table | Linked List | Two Pointers	Java
142	Linked List Cycle II	46.3%		Hash Table | Linked List | Two Pointers	Java
143	Reorder List	51.0%		Linked List | Two Pointers | Stack | Recursion	Java
146	LRU Cache	40.5%		Hash Table | Linked List | Design | Doubly-Linked List	Java
148	Sort List	54.1%		Linked List | Two Pointers | Divide and Conquer | Sorting | Merge Sort	Java
150	Evaluate Reverse Polish Notation	44.1%		Array | Math | Stack	Java
151	Reverse Words in a String	30.3%		Two Pointers | String	Java
152	Maximum Product Subarray	34.9%		Array | Dynamic Programming	Java
153	Find Minimum in Rotated Sorted Array	48.5%		Array | Binary Search	Java
155	Min Stack	51.8%		Stack | Design	Java
160	Intersection of Two Linked Lists	53.2%		Hash Table | Linked List | Two Pointers	Java
162	Find Peak Element	46.2%		Array | Binary Search	Java
167	Two Sum II - Input Array Is Sorted	60.0%		Array | Two Pointers | Binary Search	Java
169	Majority Element	63.8%		Array | Hash Table | Divide and Conquer | Sorting | Counting	Java
174	Dungeon Game	37.3%		Array | Dynamic Programming | Matrix	Java
179	Largest Number	34.0%		String | Greedy | Sorting	Java
188	Best Time to Buy and Sell Stock IV	37.9%		Array | Dynamic Programming	Java
189	Rotate Array	39.2%		Array | Math | Two Pointers	Java
190	Reverse Bits	52.1%		Divide and Conquer | Bit Manipulation	Java
191	Number of 1 Bits	64.7%		Divide and Conquer | Bit Manipulation	Java
198	House Robber	48.7%		Array | Dynamic Programming	Java
199	Binary Tree Right Side View	61.2%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
200	Number of Islands	56.2%		Array | Depth-First Search | Breadth-First Search | Union Find | Matrix	Java
202	Happy Number	54.4%		Hash Table | Math | Two Pointers	Java
204	Count Primes	33.1%		Array | Math | Enumeration | Number Theory	Java
205	Isomorphic Strings	42.6%		Hash Table | String	Java
206	Reverse Linked List	72.4%		Linked List | Recursion	Java
207	Course Schedule	45.4%		Depth-First Search | Breadth-First Search | Graph | Topological Sort	Java
208	Implement Trie (Prefix Tree)	60.8%		Hash Table | String | Design | Trie	Java
209	Minimum Size Subarray Sum	44.5%		Array | Binary Search | Sliding Window | Prefix Sum	Java
210	Course Schedule II	48.0%		Depth-First Search | Breadth-First Search | Graph | Topological Sort	Java
212	Word Search II	36.9%		Array | String | Backtracking | Trie | Matrix	Java
213	House Robber II	40.7%		Array | Dynamic Programming	Java
215	Kth Largest Element in an Array	65.7%		Array | Divide and Conquer | Sorting | Heap (Priority Queue) | Quickselect	Java
217	Contains Duplicate	61.3%		Array | Hash Table | Sorting	Java
219	Contains Duplicate II	42.3%		Array | Hash Table | Sliding Window	Java
221	Maximal Square	44.5%		Array | Dynamic Programming | Matrix	Java
226	Invert Binary Tree	73.2%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
230	Kth Smallest Element in a BST	69.3%		Tree | Depth-First Search | Binary Search Tree | Binary Tree	Java
235	Lowest Common Ancestor of a Binary Search Tree	60.2%		Tree | Depth-First Search | Binary Search Tree | Binary Tree	Java
236	Lowest Common Ancestor of a Binary Tree	57.9%		Tree | Depth-First Search | Binary Tree	Java
238	Product of Array Except Self	64.7%		Array | Prefix Sum	Java
239	Sliding Window Maximum	46.6%		Array | Queue | Sliding Window | Heap (Priority Queue) | Monotonic Queue	Java
240	Search a 2D Matrix II	50.6%		Array | Binary Search | Divide and Conquer | Matrix	Java
242	Valid Anagram	62.7%		Hash Table | String | Sorting	Java
257	Binary Tree Paths	60.6%		String | Backtracking | Tree | Depth-First Search | Binary Tree	Java
268	Missing Number	61.5%		Array | Hash Table | Math | Binary Search | Bit Manipulation | Sorting	Java
274	H-Index	38.1%		Array | Sorting | Counting Sort	Java
278	First Bad Version	42.9%		Binary Search | Interactive	Java
279	Perfect Squares	52.1%		Math | Dynamic Programming | Breadth-First Search	Java
283	Move Zeroes	61.3%		Array | Two Pointers	Java
287	Find the Duplicate Number	59.1%		Array | Two Pointers | Binary Search | Bit Manipulation	Java
289	Game of Life	66.7%		Array | Matrix | Simulation	Java
290	Word Pattern	40.4%		Hash Table | String	Java
297	Serialize and Deserialize Binary Tree	54.9%		String | Tree | Depth-First Search | Breadth-First Search | Design | Binary Tree	Java
299	Bulls and Cows	48.6%		Hash Table | String | Counting	Java
300	Longest Increasing Subsequence	51.5%		Array | Binary Search | Dynamic Programming	Java
304	Range Sum Query 2D - Immutable	52.1%		Array | Design | Matrix | Prefix Sum	Java
309	Best Time to Buy and Sell Stock with Cooldown	54.5%		Array | Dynamic Programming	Java
312	Burst Balloons	56.9%		Array | Dynamic Programming	Java
322	Coin Change	41.5%		Array | Dynamic Programming | Breadth-First Search	Java
328	Odd Even Linked List	60.2%		Linked List	Java
329	Longest Increasing Path in a Matrix	52.2%		Array | Dynamic Programming | Depth-First Search | Breadth-First Search | Graph | Topological Sort | Memoization | Matrix	Java
338	Counting Bits	75.2%		Dynamic Programming | Bit Manipulation	Java
347	Top K Frequent Elements	64.8%		Array | Hash Table | Divide and Conquer | Sorting | Heap (Priority Queue) | Bucket Sort | Counting | Quickselect	Java
349	Intersection of Two Arrays	70.2%		Array | Hash Table | Two Pointers | Binary Search | Sorting	Java
350	Intersection of Two Arrays II	55.6%		Array | Hash Table | Two Pointers | Binary Search | Sorting	Java
373	Find K Pairs with Smallest Sums	38.4%		Array | Heap (Priority Queue)	Java
377	Combination Sum IV	52.1%		Array | Dynamic Programming	Java
378	Kth Smallest Element in a Sorted Matrix	61.6%		Array | Binary Search | Sorting | Heap (Priority Queue) | Matrix	Java
387	First Unique Character in a String	58.9%		Hash Table | String | Queue | Counting	Java
389	Find the Difference	60.4%		Hash Table | String | Bit Manipulation | Sorting	Java
392	Is Subsequence	49.2%		Two Pointers | String | Dynamic Programming	Java
399	Evaluate Division	59.5%		Array | Depth-First Search | Breadth-First Search | Union Find | Graph | Shortest Path	Java
402	Remove K Digits	30.5%		String | Stack | Greedy | Monotonic Stack	Java
404	Sum of Left Leaves	56.2%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
409	Longest Palindrome	54.6%		Hash Table | String | Greedy	Java
410	Split Array Largest Sum	53.2%		Array | Binary Search | Dynamic Programming | Greedy	Java
416	Partition Equal Subset Sum	46.6%		Array | Dynamic Programming	Java
417	Pacific Atlantic Water Flow	54.0%		Array | Depth-First Search | Breadth-First Search | Matrix	Java
424	Longest Repeating Character Replacement	51.4%		Hash Table | String | Sliding Window	Java
435	Non-overlapping Intervals	49.8%		Array | Dynamic Programming | Greedy | Sorting	Java
437	Path Sum III	48.8%		Tree | Depth-First Search | Binary Tree	Java
438	Find All Anagrams in a String	48.9%		Hash Table | String | Sliding Window	Java
448	Find All Numbers Disappeared in an Array	59.6%		Array | Hash Table	Java
450	Delete Node in a BST	49.9%		Tree | Binary Search Tree | Binary Tree	Java
451	Sort Characters By Frequency	68.6%		Hash Table | String | Sorting | Heap (Priority Queue) | Bucket Sort | Counting	Java
454	4Sum II	57.3%		Array | Hash Table	Java
461	Hamming Distance	74.8%		Bit Manipulation	Java
494	Target Sum	45.6%		Array | Dynamic Programming | Backtracking	Java
503	Next Greater Element II	63.1%		Array | Stack | Monotonic Stack	Java
509	Fibonacci Number	69.2%		Math | Dynamic Programming | Recursion | Memoization	Java
515	Find Largest Value in Each Tree Row	64.6%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
516	Longest Palindromic Subsequence	60.6%		String | Dynamic Programming	Java
518	Coin Change II	59.8%		Array | Dynamic Programming	Java
525	Contiguous Array	46.8%		Array | Hash Table | Prefix Sum	Java
528	Random Pick with Weight	46.1%		Math | Binary Search | Prefix Sum | Randomized	Java
535	Encode and Decode TinyURL	85.8%		Hash Table | String | Design | Hash Function	Java
542	01 Matrix	44.2%		Array | Dynamic Programming | Breadth-First Search | Matrix	Java
543	Diameter of Binary Tree	56.0%		Tree | Depth-First Search | Binary Tree	Java
547	Number of Provinces	63.3%		Depth-First Search | Breadth-First Search | Union Find | Graph	Java
557	Reverse Words in a String III	81.5%		Two Pointers | String	Java
560	Subarray Sum Equals K	44.0%		Array | Hash Table | Prefix Sum	Java
567	Permutation in String	43.8%		Hash Table | Two Pointers | String | Sliding Window	Java
572	Subtree of Another Tree	46.0%		Tree | Depth-First Search | String Matching | Binary Tree | Hash Function	Java
605	Can Place Flowers	33.0%		Array | Greedy	Java
617	Merge Two Binary Trees	78.5%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
621	Task Scheduler	55.7%		Array | Hash Table | Greedy | Sorting | Heap (Priority Queue) | Counting	Java
628	Maximum Product of Three Numbers	46.4%		Array | Math | Sorting	Java
637	Average of Levels in Binary Tree	71.6%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
647	Palindromic Substrings	66.3%		String | Dynamic Programming	Java
653	Two Sum IV - Input is a BST	61.0%		Hash Table | Two Pointers | Tree | Depth-First Search | Breadth-First Search | Binary Search Tree | Binary Tree	Java
654	Maximum Binary Tree	84.5%		Array | Divide and Conquer | Stack | Tree | Monotonic Stack | Binary Tree	Java
658	Find K Closest Elements	46.7%		Array | Two Pointers | Binary Search | Sliding Window | Sorting | Heap (Priority Queue)	Java
662	Maximum Width of Binary Tree	40.6%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
674	Longest Continuous Increasing Subsequence	49.1%		Array	Java
680	Valid Palindrome II	39.3%		Two Pointers | String | Greedy	Java
692	Top K Frequent Words	56.8%		Hash Table | String | Trie | Sorting | Heap (Priority Queue) | Bucket Sort | Counting	Java
695	Max Area of Island	71.7%		Array | Depth-First Search | Breadth-First Search | Union Find | Matrix	Java
704	Binary Search	55.1%		Array | Binary Search	Java
721	Accounts Merge	56.3%		Array | String | Depth-First Search | Breadth-First Search | Union Find	Java
739	Daily Temperatures	66.5%		Array | Stack | Monotonic Stack	Java
740	Delete and Earn	57.4%		Array | Hash Table | Dynamic Programming	Java
744	Find Smallest Letter Greater Than Target	44.7%		Array | Binary Search	Java
746	Min Cost Climbing Stairs	62.4%		Array | Dynamic Programming	Java
767	Reorganize String	52.7%		Hash Table | String | Greedy | Sorting | Heap (Priority Queue) | Counting	Java
791	Custom Sort String	69.4%		Hash Table | String | Sorting	Java
797	All Paths From Source to Target	81.5%		Backtracking | Depth-First Search | Breadth-First Search | Graph	Java
811	Subdomain Visit Count	75.2%		Array | Hash Table | String | Counting	Java
852	Peak Index in a Mountain Array	69.5%		Array | Binary Search	Java
884	Uncommon Words from Two Sentences	66.0%		Hash Table | String	Java
896	Monotonic Array	58.2%		Array	Java
921	Minimum Add to Make Parentheses Valid	76.3%		String | Stack | Greedy	Java
938	Range Sum of BST	85.3%		Tree | Depth-First Search | Binary Search Tree | Binary Tree	Java
941	Valid Mountain Array	33.5%		Array	Java
953	Verifying an Alien Dictionary	52.7%		Array | Hash Table | String	Java
973	K Closest Points to Origin	65.9%		Array | Math | Divide and Conquer | Geometry | Sorting | Heap (Priority Queue) | Quickselect	Java
977	Squares of a Sorted Array	71.9%		Array | Two Pointers | Sorting	Java
994	Rotting Oranges	52.5%		Array | Breadth-First Search | Matrix	Java
999	Available Captures for Rook	67.8%		Array | Matrix | Simulation	Java
1009	Complement of Base 10 Integer	62.0%		Bit Manipulation	Java
1010	Pairs of Songs With Total Durations Divisible by 60	53.0%		Array | Hash Table | Counting	Java
1025	Divisor Game	67.1%		Math | Dynamic Programming | Brainteaser | Game Theory	Java
1038	Binary Search Tree to Greater Sum Tree	85.4%		Tree | Depth-First Search | Binary Search Tree | Binary Tree	Java
1046	Last Stone Weight	64.7%		Array | Heap (Priority Queue)	Java
1091	Shortest Path in Binary Matrix	44.5%		Array | Breadth-First Search | Matrix	Java
1137	N-th Tribonacci Number	63.3%		Math | Dynamic Programming | Memoization	Java
1143	Longest Common Subsequence	58.8%		String | Dynamic Programming	Java
1160	Find Words That Can Be Formed by Characters	67.8%		Array | Hash Table | String	Java
1207	Unique Number of Occurrences	70.9%		Array | Hash Table	Java
1249	Minimum Remove to Make Valid Parentheses	65.7%		String | Stack	Java
1275	Find Winner on a Tic Tac Toe Game	54.3%		Array | Hash Table | Matrix | Simulation	Java
1282	Group the People Given the Group Size They Belong To	85.7%		Array | Hash Table	Java
1302	Deepest Leaves Sum	86.9%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
1315	Sum of Nodes with Even-Valued Grandparent	85.6%		Tree | Depth-First Search | Breadth-First Search | Binary Tree	Java
1436	Destination City	77.6%		Hash Table | String	Java
1464	Maximum Product of Two Elements in an Array	79.3%		Array | Sorting | Heap (Priority Queue)	Java
1476	Subrectangle Queries	88.5%		Array | Design | Matrix	Java
1480	Running Sum of 1d Array	89.7%		Array | Prefix Sum	Java
1492	The kth Factor of n	62.3%		Math	Java
1637	Widest Vertical Area Between Two Points Containing No Points	84.2%		Array | Sorting	Java
1641	Count Sorted Vowel Strings	77.3%		Dynamic Programming	Java
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers	89.7%		String | Greedy	Java
1769	Minimum Number of Operations to Move All Balls to Each Box	85.4%		Array | String	Java
1920	Build Array from Permutation	91.5%		Array | Simulation	Java
1929	Concatenation of Array	91.5%		Array	Java
2181	Merge Nodes in Between Zeros	86.8%		Linked List | Simulation	Java
2235	Add Two Integers	89.9%		Math	Java
2236	Root Equals Sum of Children	87.4%		Tree | Binary Tree	Java
2265	Count Nodes Equal to Average of Subtree	85.6%		Tree | Depth-First Search | Binary Tree	Java
2455	Average Value of Even Numbers That Are Divisible by Three	58.7%			Java
2456	Most Popular Video Creator	36.5%			Java
2457	Minimum Addition to Make Integer Beautiful	34.4%			Java