FanluLeetcode

Leetcode 解题记录。根据题目的场景/标签归档，并以此位单位归纳总结。

• 题号：四位数字方便搜索定位。
• 总结：当前标签/主题相关的理论知识及解题套路和心得总结
• 地址：包括leetcode.com 和 leetcode-cn.com
• 难度：作者对题目难度的定义，会在官方给定难度等级之上通过+,-进行标记
• 代码：Java解法的代码，一般会包含最符合题意的解及效率最高解。并给出每种解的提交数据反馈。
• 结果：最优解的提交反馈数据
• 标签：相关标签，一般是最优或者最直观解法使用的算法思想

目前正在探索使用Obisidian整理题解，逐渐提供比代码本身更有信息量的内容。

Helper

README 文件通过此类生成。

Array

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0001	two-sum	two-sum	Easy	java	99.23% 99.75%	Array
0056	merge-intervals	merge-intervals	Medium	java	92.20% 55.70%	Array
0066	plus-one	plus-one	Easy	java	100.00% 5.10%	Array
0118	pascals-triangle	pascals-triangle	Easy	java	77.33% 9.09%	Array
0119	pascals-triangle-ii	pascals-triangle-ii	Easy	java	86.51% 5.88%	Array
0169	majority-element	majority-element	Easy	java	100.00% 50.94%	Array
0189	rotate-array	rotate-array	easy	java	100% 100%%	Array
0217	contains-duplicate	contains-duplicate	Easy	java	99.06% 65.20%	Array
0228	summary-ranges	summary-ranges	Easy	java	8.88% 26.69%	Array
0283	move-zeroes	move-zeroes	Easy	java	100.00% 94.20%	Array
0349	intersection-of-two-arrays	intersection-of-two-arrays	Easy	java	100% 50%	Array
0448	find-all-numbers-disappeared-in-an-array	find-all-numbers-disappeared-in-an-array	Easy	java	99.93% 61.97%	Array
0485	max-consecutive-ones	max-consecutive-ones	Easy-	java	99.83% 99.97%	Array
0509	fibonacci-number	fibonacci-number	Easy-	java	100.00% 50.46%	Array
0561	array-partition-i	array-partition-i	Easy	java	100.00% 97.20%	Array
0697	degree-of-an-array	degree-of-an-array	Easy	java	100.00% 54.88%	Array
0849	maximize-distance-to-closest-person	maximize-distance-to-closest-person	Easy	java	100.00% 91.67%	Array
0888	fair-candy-swap	fair-candy-swap	Easy	java	100.00% 98.74%	Array
0896	monotonic-array	monotonic-array	Easy-	java	100.00% 96.10%	Array
0905	sort-array-by-parity	sort-array-by-parity	Easy	java	100.00% 96.91%	Array
0922	sort-array-by-parity-ii	sort-array-by-parity-ii	Easy	java	99.72% 99.43%	Array
0945	minimum-increment-to-make-array-unique	minimum-increment-to-make-array-unique	Easy	java	97.81% 86.27%	Array
0977	squares-of-a-sorted-array	squares-of-a-sorted-array	Easy	java	100.00% 96.27%	Array
0985	sum-of-even-numbers-after-queries	sum-of-even-numbers-after-queries	Easy	java	99.93% 86.35%	Array
1002	find-common-characters	find-common-characters	Easy	java	100.00% 98.16%	Array
1013	partition-array-into-three-parts-with-equal-sum	partition-array-into-three-parts-with-equal-sum	Easy	java	100.00% 90.69%	Array
1051	height-checker	height-checker	Easy	java	96.41% 100.00%	Array
1103	distribute-candies-to-people	distribute-candies-to-people	medium	java	8.10% 5.27%	Array

Dynamic Programming

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0064	minimum-path-sum	minimum-path-sum	Medium	java	88.89% 26.71%	Dynamic Programming
0070	climbing-stairs	climbing-stairs	Easy	java	100.00% 5.26%	Dynamic Programming
0121	best-time-to-buy-and-sell-stock	best-time-to-buy-and-sell-stock	Easy	java	100.00% 100.00%	Dynamic Programming
0122	best-time-to-buy-and-sell-stock-ii	best-time-to-buy-and-sell-stock-ii	Easy-	java	100.00% 100.00%	Dynamic Programming
0123	best-time-to-buy-and-sell-stock-iii	best-time-to-buy-and-sell-stock-iii	Hard	java	99.75% 100.00%	Dynamic Programming
0188	best-time-to-buy-and-sell-stock-iv	best-time-to-buy-and-sell-stock-iv	Hard	java	100.00% 100.00%	Dynamic Programming
0198	house-robber	house-robber	Easy	java	100.00% 100.00%	Dynamic Programming
0213	house-robber-ii	house-robber-ii	Medium	java	100.00% 100.00%	Dynamic Programming
0256	paint-house	paint-house	Easy	java	98.79% 100.00%	Dynamic Programming
0265	paint-house-ii	paint-house-ii	Hard-	java	99.53% 100.00%	Dynamic Programming
0276	paint-fence	paint-fence	Easy	java	100% 100%	Dynamic Programming
0292	nim-game	nim-game	Easy	java	100.00% 100.00%	Minimax
0303	range-sum-query-immutable	range-sum-query-immutable	Easy	java	95.71% 56.10%	Dynamic Programming
0309	best-time-to-buy-and-sell-stock-with-cooldown	best-time-to-buy-and-sell-stock-with-cooldown	Medium	java	100.00% 100.00%	Dynamic Programming
0322	coin-change	coin-change	Medium	java	99.99% 100%	Dynamic Programming
0337	house-robber-iii	house-robber-iii	Medium	java	100.00% 100.00%	Dynamic Programming
0338	counting-bits	counting-bits	Medium	java	100.00% 5.88%	Dynamic Programming
0375	guess-number-higher-or-lower-ii	guess-number-higher-or-lower-ii	Medium	java	99.47% 5.41%	Minimax
0486	predict-the-winner	predict-the-winner	Medium	java	100.00% 5.45%	Minimax
0518	coin-change-2	coin-change-2	Medium	java	100.00% 8.33%	Dynamic Programming
0714	best-time-to-buy-and-sell-stock-with-transaction-fee	best-time-to-buy-and-sell-stock-with-transaction-fee	Medium	java	80.67% 100.00%	Dynamic Programming
0746	min-cost-climbing-stairs	min-cost-climbing-stairs	Easy	java	99.86% 100.00%	Dynamic Programming
0877	stone-game	stone-game	Medium	java	100.00% 100.00%	Minimax
0931	minimum-falling-path-sum	minimum-falling-path-sum	Medium	java	89.09% 86.67%	Dynamic Programming
1025	divisor-game	divisor-game	Easy	java	100.00% 13.33%	Dynamic Programming
1140	stone-game-ii	stone-game-ii	Medium	java	100.00% 100.00%	Minimax
1449	form-largest-integer-with-digits-that-add-up-to-target	form-largest-integer-with-digits-that-add-up-to-target	Hard	java	100.00% 100.00%	Dynamic Programming

Binary Tree

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0100	same-tree	same-tree	Easy	java	100.00% 0ms 5.33%	Binary Tree
0101	symmetric-tree	symmetric-tree	Easy	java	100.00% 26.66%	Binary Tree
0104	maximum-depth-of-binary-tree	maximum-depth-of-binary-tree	Easy	java	100.00% 25.42%	Binary Tree
0105	construct-binary-tree-from-preorder-and-inorder-traversal	construct-binary-tree-from-preorder-and-inorder-traversal	Medium	java	77.57% 70.00%	Binary Tree
0106	construct-binary-tree-from-inorder-and-postorder-traversal	construct-binary-tree-from-inorder-and-postorder-traversal	Medium	java	74.17% 61.90%	Binary Tree
0110	balanced-binary-tree	balanced-binary-tree	Easy	java	99.69% 1ms 23.53%	Binary Tree
0116	populating-next-right-pointers-in-each-node	populating-next-right-pointers-in-each-node	Medium	java	100% 100%	Binary Tree
0117	populating-next-right-pointers-in-each-node-ii	populating-next-right-pointers-in-each-node-ii	Medium	java	45.96% 50.00%	Binary Tree
0226	invert-binary-tree	invert-binary-tree	Easy-	java	100.00% 48.73%	Binary Tree
0236	lowest-common-ancestor-of-a-binary-tree	lowest-common-ancestor-of-a-binary-tree	null	java	100.00% 44.21%	Binary Tree
0236	lowest-common-ancestor-of-a-binary-tree	lowest-common-ancestor-of-a-binary-tree	null	java	100% 19.83%	Binary Tree
0297	serialize-and-deserialize-binary-tree	serialize-and-deserialize-binary-tree	Hard	java	26.24% 33.57%	Binary Tree
0404	sum-of-left-leaves	sum-of-left-leaves	Easy	java	100.00% 88.90%	Binary Tree
0543	diameter-of-binary-tree	diameter-of-binary-tree	Easy+	java	100.00% 23.72%	tree.binarytree
0563	binary-tree-tilt	binary-tree-tilt	Easy	java	100.00% 31.25%	tree.binarytree
0617	merge-two-binary-trees	merge-two-binary-trees	Easy	java	100.00% 17.28%	Binary Tree
0671	second-minimum-node-in-a-binary-tree	second-minimum-node-in-a-binary-tree	null	java	100.00% 93.19%	Binary Tree

Linked List

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
Offer22	lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof	lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof	Easy	java	100.00% 85.78%	Double Pointers
0002	add-two-numbers	add-two-numbers	Medium	java	94.51% 90.73%	Linked list
0024	swap-nodes-in-pairs	swap-nodes-in-pairs	Medium-	java	100% 55.56%	Linked List
0025	reverse-nodes-in-k-group	reverse-nodes-in-k-group	Hard	java	100.00% 37.77%	Linked List
0083	remove-duplicates-from-sorted-list	remove-duplicates-from-sorted-list	null	java	100.00% 99.97%	Linked list
0092	reverse-linked-list-ii	reverse-linked-list-ii	Medium	java	100.00% 100.00%	Linked list
0109	convert-sorted-list-to-binary-search-tree	convert-sorted-list-to-binary-search-tree	null	java	97.35% 100.00%	Linked list , Binary Tree
0142	linked-list-cycle-ii	linked-list-cycle-ii	null	java	96.51% 99.89%	Linked list
0160	intersection-of-two-linked-lists	intersection-of-two-linked-lists	Easy	java	100.00% 22.65%	Linked list
0203	remove-linked-list-elements	remove-linked-list-elements	Easy-	java	99.37% 99.72%	Linked list
0206	reverse-linked-list	reverse-linked-list	Easy	java	100.00% 99.87%	Double Pointers, Recursive
0237	delete-node-in-a-linked-list	delete-node-in-a-linked-list	Easy-	java	100% 100%	Linked list
0328	odd-even-linked-list	odd-even-linked-list	Medium-	java	100.00% 8.12%	Linked List
0445	add-two-numbers-ii	add-two-numbers-ii	Medium	java	99.96% 74.91%	Linked list
0707	design-linked-list	design-linked-list	null	java	80.06% 88.98%	Linked list
0725	split-linked-list-in-parts	split-linked-list-in-parts	null	java	100.00% 100.00%	Linked list
0876	middle-of-the-linked-list	middle-of-the-linked-list	null	java	100.00% 100.00%	Linked list

Permutation & Combination

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0031	next-permutation	next-permutation	Medium	java	100% 66%	Greedy
0039	combination-sum	combination-sum	Medium	java	77.47% 86.63%	combination
0040	combination-sum-ii	combination-sum-ii	Medium	java	40.55% 53.43%	combination
0046	permutations	permutations	Medium	java	96.75% 5.14%	Backtracking
0047	permutations-ii	permutations-ii	Medium	java	100.00% 17.50%	Backtracking
0077	combinations	combinations	Medium	java	93.17% 74.09%	Backtracking
0078	subsets	subsets	Medium	java	82.14% 5.24%	combination
0090	subsets-ii	subsets-ii	Medium	java	100.00% 24.48%	combination
lcof38	zi-fu-chuan-de-pai-lie-lcof	zi-fu-chuan-de-pai-lie-lcof	Medium	java	99.28% 49.61%	Backtracking
0060	permutation-sequence	permutation-sequence	Hard	java	57.64% 43.94%	Math
0216	combination-sum-iii	combination-sum-iii	Medium	java	46.43% 42.73%	Backtracking
0377	combination-sum-iv	combination-sum-iv	Medium-	java	99.56% 51.40%	DP
0567	permutation-in-string	permutation-in-string	Medium	java	58.10% 18.75%	Sliding Window
0784	letter-case-permutation	letter-case-permutation	Easy	java	100.00% 99.36%	Backtracking

Binary Search

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0004	median-of-two-sorted-array	median-of-two-sorted-array	Hard	java	92.12% 84.77%	Binary Search
0035	search-insert-position	search-insert-position	Easy	java	100.00% 5.03%	Binary Search
0050	powx-n	powx-n	Medium	java	82.1 100%	Binary Search
0069	sqrtx	sqrtx	Easy	java	100.00% 5.04%	Binary Search
0153	find-minimum-in-rotated-sorted-array	find-minimum-in-rotated-sorted-array	medium	java	100.00% 29.57%	Binary Search
0154	find-minimum-in-rotated-sorted-array-ii	find-minimum-in-rotated-sorted-array-ii	Hard	java	100.00% 29.57%	Binary Search
0167	two-sum-ii-input-array-is-sorted	two-sum-ii-input-array-is-sorted	Easy	java	100.00% 63.39%	Binary Search
0222	count-complete-tree-nodes	count-complete-tree-nodes	Medium	java	100.00% 53.27%	Binary Search
0300	longest-increasing-subsequence	longest-increasing-subsequence	Medium	java	94.63% 5.63%	Binary Search ,Dynamic Programming
0374	guess-number-higher-or-lower	guess-number-higher-or-lower	Easy	java	100.00% 5.21%	Binary Search
0441	arranging-coins	arranging-coins	null	java	82.04% 100%	Binary Search
0704	binary-search	binary-search	Easy	java	100.00% 5.09%	Binary Search
0852	peak-index-in-a-mountain-array	peak-index-in-a-mountain-array	Easy	java	100.00% 5.16%	Binary Search
0875	koko-eating-bananas	koko-eating-bananas	medium	java	67.13% 5.14%	Binary Search

Stack

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0020	valid-parentheses	valid-parentheses	Easy	java	98.69% 99.98%	Stack
0032	longest-valid-parentheses	longest-valid-parentheses	Hard	java	98.69% 99.98%	Stack
0155	min-stack	min-stack	Medium	java	78.13% 14.46%	Design
0225	implement-stack-using-queues	implement-stack-using-queues	Easy	java	100% 100%	Stack, Queue
0394	decode-string	decode-string	Medium	java	100.00% 100.00%	Stack,String
0772	basic-calculator-iii	basic-calculator-iii	Hard	java	46.17% 20.92%	Stack
mst03.01	three-in-one-lcci	three-in-one-lcci	Easy	java	91.52% 5.64%	Stack
mst03.05	sort-of-stacks-lcci	sort-of-stacks-lcci	Medium-	java	99.82% 10.49%	Stack
1047	remove-all-adjacent-duplicates-in-string	remove-all-adjacent-duplicates-in-string	Easy	java	100.00% 16.48%	Stack
946,Offer31	zhan-de-ya-ru-dan-chu-xu-lie-lcof	zhan-de-ya-ru-dan-chu-xu-lie-lcof	Medium	java	96.92% 10.81%	Stack
227,mst16.26	basic-calculator-ii	basic-calculator-ii	Medium	java	100% 23%	Stack
0224	basic-calculator	basic-calculator	Hard	java	43.08% 17.47%	Stack
0739	daily-temperatures	daily-temperatures	Medium	java	91.69% 5.03%	Stack

Math

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
mst16.11	diving-board-lcci	diving-board-lcci	Easy	java	100% 100%	Math
Offer62	yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof	yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof	Easy	java	99.98% 100.00%	Math
0007	reverse-integer	reverse-integer	Easy	java	100.00% 11.11%	Math
0029	divide-two-integers	divide-two-integers	Medium	java	88% 49%	Math
0168	excel-sheet-column-title	excel-sheet-column-title	Easy	java	100.00% 14.29%	Math
0171	excel-sheet-column-number	excel-sheet-column-number	Easy -	java	100.00% 5.55%	Math
0172	factorial-trailing-zeroes	factorial-trailing-zeroes	Easy	java	100.00% 100.00%	Math
0202	happy-number	happy-number	Easy	java	47.92% 8.33%	Math
0204	count-primes	count-primes	Easy+	java	80% 80%	Math
0223	rectangle-area	rectangle-area	Medium	java	98.16% 25.00%	Math
0365	water-and-jug-problem	water-and-jug-problem	Medium +	java	100.00% 13.93%	Math, BFS
0492	construct-the-rectangle	construct-the-rectangle	Easy	java	100.00% 14.29%	Math
0836	rectangle-overlap	rectangle-overlap	Easy	java	100.00% 50.00%	Math
1071	greatest-common-divisor-of-strings	greatest-common-divisor-of-strings	Easy	java	97.81% 100.00%	Greatest Common Divisor

Matrix

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
mst01.08	zero-matrix-lcci	zero-matrix-lcci	Medium-	java	50% 50%	Matrix
0054	spiral-matrix	spiral-matrix	Medium	java	100.00% 99.54%	Matrix
0200	number-of-islands	number-of-islands	Medium	java	91.40% 15.30%	dfs
0240	search-a-2d-matrix-ii	search-a-2d-matrix-ii	Medium	java	97.85% 17.32%	Matrix
0289	game-of-life	game-of-life	Medium	java	100.00% 91.85%	Matrix
0695	max-area-of-island	max-area-of-island	Medium	java	82.11% 91.14%	Matrix, Back tracking
0766	toeplitz-matrix	toeplitz-matrix	Easy	java	100.00% 73.60%	Matrix
0832	flipping-an-image	flipping-an-image	null	java	100.00% 99.95%	Matrix
0867	transpose-matri	transpose-matri	Easy-	java	100.00% 99.81%	Matrix
0985	reshape-the-matrix	reshape-the-matrix	Easy-	java	100.00% 100.00%	Matrix
0999	available-captures-for-rook	available-captures-for-rook	Easy	java	100.00% 99.95%	Matrix

Two Pointers

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0003	longest-substring-without-repeating-characters	longest-substring-without-repeating-characters	Medium	java	99.83% 80.19%	Sliding Window
0011	container-with-most-water	container-with-most-water	medium-	java	71.02% 7.14%	Two Pointers
0015	3sum	3sum	Medium	java	98.79% 91.35%	Two Pointers
0016	3sum-closest	3sum-closest	Medium	java	85.38% 17.73%	Two Pointers
0018	4sum	4sum	medium	java	88.88% 68.14%	Two Pointers
0019	remove-nth-node-from-end-of-list	remove-nth-node-from-end-of-list	Medium-	java	100.00% 94.24%	Two Pointers
0026	remove-duplicates-from-sorted-array	remove-duplicates-from-sorted-array	Easy	java	100% 99.47%	Array
0027	remove-element	remove-element	Easy	java	100.00% 100.00%	Array
0042	trapping-rain-water	trapping-rain-water	Hard	java	99.95% 19.88%	two pointers
0076	minimum-window-substring	minimum-window-substring	Hard	java	42.34% 13.33%	Sliding Window
0088	merge-sorted-array	merge-sorted-array	Easy-	java	100.00% 73.09%	Two Pointers
0141	linked-list-cycle	linked-list-cycle	Easy	java	100.00% 99.88%	Two Pointers
0142	linked-list-cycle-ii	linked-list-cycle-ii	Medium	java	100.00% 5.04%	Two Pointers
0239	sliding-window-maximum	sliding-window-maximum	Hard	java	39.53% 6.67%	Sliding Window
0424	longest-repeating-character-replacement	longest-repeating-character-replacement	Medium	java	33.67% 100.00%	Sliding Window

Binary Search Tree

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0095	unique-binary-search-trees-ii	unique-binary-search-trees-ii	Medium	java	100.00% 99.41%	Binary Search Tree;Dynamic Programming
0096	unique-binary-search-trees	unique-binary-search-trees	Medium	java	100.00% 99.41%	Binary Search Tree;Dynamic Programming
0098	validate-binary-search-tree	validate-binary-search-tree	Medium	java	100.00% 5.80%	Binary Search Tree
0108	convert-sorted-array-to-binary-search-tree	convert-sorted-array-to-binary-search-tree	Easy	java	100.00% 5.06%	Binary Search Tree
0173	binary-search-tree-iterator	binary-search-tree-iterator	Medium	java	72.82% 100%	Binary Search Tree，Stack
0235	lowest-common-ancestor-of-a-binary-search-tree	lowest-common-ancestor-of-a-binary-search-tree	Easy	java	99.85% 6.06%	Binary Search Tree
0450	delete-node-in-a-bst	delete-node-in-a-bst	Medium+	java	100.00% 20.00%	Binary Search Tree
0530	minimum-distance-between-bst-nodes	minimum-distance-between-bst-nodes	null	java	100.00% 52.53%	Binary Search Tree
0538	convert-bst-to-greater-tree	convert-bst-to-greater-tree	Easy	java	98.33% 62.29%	Binary Search Tree
0700	search-in-a-binary-search-tree	search-in-a-binary-search-tree	Easy-	java	100.00% 9.09%	Binary Search Tree

Hashtable

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0219	contains-duplicate-ii	contains-duplicate-ii	Easy-	java	95.81% 5.72%	Hashtable
0242	valid-anagram	valid-anagram	null	java	90.46% 71.14%	Hashtable
0389	find-the-difference	find-the-difference	Easy	java	99.37% 19.48%	Hashtable
0409	longest-palindrome	longest-palindrome	Easy	java	100.00% 100%	Hashtable
0454	4sum-ii	4sum-ii	medium	java	99.35% 53.32%	Two Pointers
0594	longest-harmonious-subsequence	longest-harmonious-subsequence	Easy+	java	100.00% 13.99%	Hashtable
0692	top-k-frequent-words	top-k-frequent-words	null	java	99.50% 89.29%	Hashtable
1160	find-words-that-can-be-formed-by-characters	find-words-that-can-be-formed-by-characters	Easy	java	84.18% 5.08%	Hashtable

String

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0008	string-to-integer-atoi	string-to-integer-atoi	Medium	java	99.87% 93.46%	String
0014	longest-common-prefix	longest-common-prefix	Easy-	java	74.35% 100%	String
0038	count-and-say	count-and-say	Easy	java	100 % 100 %	String
0058	length-of-last-word	length-of-last-word	Easy	java	100.00% 5.32%	String
0067	add-binary	add-binary	Easy	java	97.15% 5.12%	String
0205	isomorphic-strings	isomorphic-strings	Easy-	java	81.95% 34.68%	String
0344	reverse-string	reverse-string	Easy-	java	100.00% 18.74%	String
0415	add-strings	add-strings	Easy	java	99.62% 26.75%	Math
0541	reverse-string-ii	reverse-string-ii	Easy	java	100.00% 25.50%	String

Palindromic

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0005	longest-palindromic-substring	longest-palindromic-substring	Medium	java	87.40% 69.11%	String
0009	palindrome-number	palindrome-number	Easy	java	100.00% 5.02%	Math
0125	valid-palindrome	valid-palindrome	Easy	java	100% 100%	String
0234	palindrome-linked-list	palindrome-linked-list	Easy+	java	99.87% 7.54%	findpattern.palindromic
0516	longest-palindromic-subsequence	longest-palindromic-subsequence	Medium	java	100% 100%	Dynamic Programming
0647	palindromic-substrings	palindromic-substrings	Medium	java	99.97% 100.00%	Dynamic Programming
0680	valid-palindrome-ii	valid-palindrome-ii	Easy	java	99.68% 94.44%	String

Breadth-first Search

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0102	binary-tree-level-order-traversal	binary-tree-level-order-traversal	Medium	java	99.79% 5.13%	Breadth First Search
0103	binary-tree-zigzag-level-order-traversal	binary-tree-zigzag-level-order-traversal	Medium-	java	98.10% 34.57%	Breadth First Search
0107	binary-tree-level-order-traversal-ii	binary-tree-level-order-traversal-ii	Easy	java	99.79% 5.13%	Breadth First Search
0111	minimum-depth-of-binary-tree	minimum-depth-of-binary-tree	Easy	java	100.00% 5.33%	Breadth First Search
0199	binary-tree-right-side-view	binary-tree-right-side-view	Medium-	java	95.83% 16.21%	Breadth First Search
0637	average-of-levels-in-binary-tree	average-of-levels-in-binary-tree	null	java	99.18% 24.76%	Breadth First Search
0752	open-the-lock	open-the-lock	Medium	java	100% 83.33%	Breadth First Search

Bit Manipulation

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0136	single-number	single-number	Easy	java	100% 100%	Bit Manipulation
0137	single-number-ii	single-number-ii	Medium	java	100% 100%	Bit Manipulation
0190	reverse-bits	reverse-bits	Easy	java	100.00% 92.12%	Bit Manipulation
0191	number-of-1-bits	number-of-1-bits	Easy	java	100% 100%	Bit Manipulation
0260	single-number-iii	single-number-iii	Medium	java	100% 16.67%	Bit Manipulation
0371	sum-of-two-integers	sum-of-two-integers	Easy	java	100% 8.00%	Bit Manipulation
0397	integer-replacement	integer-replacement	Medium	java	100% 8.00%	Bit Manipulation

Backtracking

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0017	letter-combinations-of-a-phone-number	letter-combinations-of-a-phone-number	Medium	java	100.00% 84.17%	Backtracking
0037	sudoku-solver	sudoku-solver	Hard	java	97.00% 94.25%	Backtracking
0051	n-queens	n-queens	Hard-	java	100% 100%	Backtracking
0079	word-search	word-search	Medium	java	99.91% 100.00%	Backtracking
0212	word-search-ii	word-search-ii	Hard	java	99.98% 77.78%	Backtracking
0679	24-game	24-game	Hard	java	93.33% 14.29%	Backtracking
0784	letter-case-permutation	letter-case-permutation	Easy	java	89.19% 100.00%	Backtracking

Trie

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0139	word-break	word-break	Medium	java	99.62% 77.20%	tree.trie
0140	word-break-ii	word-break-ii	Hard	java	100.00% 92.20%	tree.trie
0208	implement-trie-prefix-tree	implement-trie-prefix-tree	Medium-	java	99.79% 98.24%	Trie
0211	design-add-and-search-words-data-structure	design-add-and-search-words-data-structure	Medium	java	100.00% 76.32%	Trie
0720	longest-word-in-dictionary	longest-word-in-dictionary	Easy	java	100.00% 97.61%	Trie
1023	camelcase-matching	camelcase-matching	Medium	java	100.00% 99.58%	Trie

Find Pattern

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
mst01.05	one-away-lcci	one-away-lcci	Medium	java	100.00% 5.04%	Find Pattern
0005	longest-palindromic-substring	longest-palindromic-substring	Medium	java	87.40% 69.11%	String
0006	zigzag-conversion	zigzag-conversion	Medium	java	99.87% 93.46%	String
0009	palindrome-number	palindrome-number	Easy	java	100.00% 5.02%	Math
0022	generate-parentheses	generate-parentheses	Medium	java	100.00% 68.18%	Backtracking
0048	rotate-image	rotate-image	Medium	java	100% 100%	Find Pattern
0055	jump-game	jump-game	Medium	java	100% 5.09%	Dynamic Programming
0125	valid-palindrome	valid-palindrome	Easy	java	100% 100%	String
0234	palindrome-linked-list	palindrome-linked-list	Easy+	java	99.87% 7.54%	findpattern.palindromic
0516	longest-palindromic-subsequence	longest-palindromic-subsequence	Medium	java	100% 100%	Dynamic Programming
0647	palindromic-substrings	palindromic-substrings	Medium	java	99.97% 100.00%	Dynamic Programming
0680	valid-palindrome-ii	valid-palindrome-ii	Easy	java	99.68% 94.44%	String

Depth-First Search

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0112	path-sum	path-sum	Easy	java	100.00% 6.52%	Depth-First Search
0113	path-sum-ii	path-sum-ii	Medium	java	65.46% 5.26%	Depth-First Search
0113	path-sum-ii	path-sum-ii	Hard	java	99.67% 1ms 7.69%	Depth-First Search
0129	sum-root-to-leaf-numbers	sum-root-to-leaf-numbers	Medium	java	100.00% 87.92%	Depth-First Search
0257	binary-tree-paths	binary-tree-paths	Easy	java	93.46% 37.08%	Depth-First Search

Greedy

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0012	integer-to-roman	integer-to-roman	Medium-	java	100.00% 100.00%	Greedy
0013	roman-to-integer	roman-to-integer	Easy	java	94.96% 94.49%	Math
0053	maximum-subarray	maximum-subarray	Easy	java	100.00% 99.53%	Greedy, DP
0392	is-subsequence	is-subsequence	Easy	java	100.00% 100.00%	Greedy
0751	ip-to-cidr	ip-to-cidr	Easy+	java	100.00% 100.00%	Greedy

Minimax

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0292	nim-game	nim-game	Easy	java	100.00% 100.00%	Minimax
0375	guess-number-higher-or-lower-ii	guess-number-higher-or-lower-ii	Medium	java	99.47% 5.41%	Minimax
0486	predict-the-winner	predict-the-winner	Medium	java	100.00% 5.45%	Minimax
0877	stone-game	stone-game	Medium	java	100.00% 100.00%	Minimax
1140	stone-game-ii	stone-game-ii	Medium	java	100.00% 100.00%	Minimax

String Match

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0028	implement-strstr	implement-strstr	Easy+	java	53.86% 64.88%	String
0030	substring-with-concatenation-of-all-words	substring-with-concatenation-of-all-words	Hard	java	47.38% 5.00%	String Match
0758	bold-words-in-string	bold-words-in-string	Easy +	java	96.18% 100.00%	String Match

Ordered Map

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0220	contains-duplicate-iii	contains-duplicate-iii	Medium	java	90.80% 5.28%	Ordered Map
0352	data-stream-as-disjoint-intervals	data-stream-as-disjoint-intervals	Hard	java	75.24% 75.00%	Ordered Map
0729	my-calendar-i	my-calendar-i	Medium	java	55.27% 19.51%	Ordered Map
0731	my-calendar-ii	my-calendar-ii	Medium+	java	100.00% 70.83%	Ordered Map

Sliding Window

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0003	longest-substring-without-repeating-characters	longest-substring-without-repeating-characters	Medium	java	99.83% 80.19%	Sliding Window
0076	minimum-window-substring	minimum-window-substring	Hard	java	42.34% 13.33%	Sliding Window
0239	sliding-window-maximum	sliding-window-maximum	Hard	java	39.53% 6.67%	Sliding Window
0424	longest-repeating-character-replacement	longest-repeating-character-replacement	Medium	java	33.67% 100.00%	Sliding Window

Geometry

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0892	surface-area-of-3d-shapes	surface-area-of-3d-shapes	Easy	java	77.35% 100.00%	Math
0963	minimum-area-rectangle-ii	minimum-area-rectangle-ii	Medium+	java	52.63% 100.00%	Geometry
1401	circle-and-rectangle-overlapping	circle-and-rectangle-overlapping	Medium	java	100.00% 100.00%	Geometry

Tree

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0095	unique-binary-search-trees-ii	unique-binary-search-trees-ii	Medium	java	100.00% 99.41%	Binary Search Tree;Dynamic Programming
0096	unique-binary-search-trees	unique-binary-search-trees	Medium	java	100.00% 99.41%	Binary Search Tree;Dynamic Programming
0098	validate-binary-search-tree	validate-binary-search-tree	Medium	java	100.00% 5.80%	Binary Search Tree
0100	same-tree	same-tree	Easy	java	100.00% 0ms 5.33%	Binary Tree
0101	symmetric-tree	symmetric-tree	Easy	java	100.00% 26.66%	Binary Tree
0104	maximum-depth-of-binary-tree	maximum-depth-of-binary-tree	Easy	java	100.00% 25.42%	Binary Tree
0105	construct-binary-tree-from-preorder-and-inorder-traversal	construct-binary-tree-from-preorder-and-inorder-traversal	Medium	java	77.57% 70.00%	Binary Tree
0106	construct-binary-tree-from-inorder-and-postorder-traversal	construct-binary-tree-from-inorder-and-postorder-traversal	Medium	java	74.17% 61.90%	Binary Tree
0108	convert-sorted-array-to-binary-search-tree	convert-sorted-array-to-binary-search-tree	Easy	java	100.00% 5.06%	Binary Search Tree
0110	balanced-binary-tree	balanced-binary-tree	Easy	java	99.69% 1ms 23.53%	Binary Tree
0114	flatten-binary-tree-to-linked-list	flatten-binary-tree-to-linked-list	Medium	java	100% 99.89%	Morris Traversal
0116	populating-next-right-pointers-in-each-node	populating-next-right-pointers-in-each-node	Medium	java	100% 100%	Binary Tree
0117	populating-next-right-pointers-in-each-node-ii	populating-next-right-pointers-in-each-node-ii	Medium	java	45.96% 50.00%	Binary Tree
0139	word-break	word-break	Medium	java	99.62% 77.20%	tree.trie
0140	word-break-ii	word-break-ii	Hard	java	100.00% 92.20%	tree.trie
0173	binary-search-tree-iterator	binary-search-tree-iterator	Medium	java	72.82% 100%	Binary Search Tree，Stack
0208	implement-trie-prefix-tree	implement-trie-prefix-tree	Medium-	java	99.79% 98.24%	Trie
0211	design-add-and-search-words-data-structure	design-add-and-search-words-data-structure	Medium	java	100.00% 76.32%	Trie
0226	invert-binary-tree	invert-binary-tree	Easy-	java	100.00% 48.73%	Binary Tree
0235	lowest-common-ancestor-of-a-binary-search-tree	lowest-common-ancestor-of-a-binary-search-tree	Easy	java	99.85% 6.06%	Binary Search Tree
0236	lowest-common-ancestor-of-a-binary-tree	lowest-common-ancestor-of-a-binary-tree	null	java	100.00% 44.21%	Binary Tree
0236	lowest-common-ancestor-of-a-binary-tree	lowest-common-ancestor-of-a-binary-tree	null	java	100% 19.83%	Binary Tree
0297	serialize-and-deserialize-binary-tree	serialize-and-deserialize-binary-tree	Hard	java	26.24% 33.57%	Binary Tree
0404	sum-of-left-leaves	sum-of-left-leaves	Easy	java	100.00% 88.90%	Binary Tree
0450	delete-node-in-a-bst	delete-node-in-a-bst	Medium+	java	100.00% 20.00%	Binary Search Tree
0501	find-mode-in-binary-search-tree	find-mode-in-binary-search-tree	Easy	java	100% 100%	Morris Traversal
0530	minimum-distance-between-bst-nodes	minimum-distance-between-bst-nodes	null	java	100.00% 52.53%	Binary Search Tree
0538	convert-bst-to-greater-tree	convert-bst-to-greater-tree	Easy	java	98.33% 62.29%	Binary Search Tree
0543	diameter-of-binary-tree	diameter-of-binary-tree	Easy+	java	100.00% 23.72%	tree.binarytree
0563	binary-tree-tilt	binary-tree-tilt	Easy	java	100.00% 31.25%	tree.binarytree
0589	n-ary-tree-preorder-traversal	n-ary-tree-preorder-traversal	Easy	java	100.00% 17.07%	Tree
0617	merge-two-binary-trees	merge-two-binary-trees	Easy	java	100.00% 17.28%	Binary Tree
0671	second-minimum-node-in-a-binary-tree	second-minimum-node-in-a-binary-tree	null	java	100.00% 93.19%	Binary Tree
0700	search-in-a-binary-search-tree	search-in-a-binary-search-tree	Easy-	java	100.00% 9.09%	Binary Search Tree
0720	longest-word-in-dictionary	longest-word-in-dictionary	Easy	java	100.00% 97.61%	Trie
1023	camelcase-matching	camelcase-matching	Medium	java	100.00% 99.58%	Trie

Design

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
Offer20	biao-shi-shu-zhi-de-zi-fu-chuan-lcof	biao-shi-shu-zhi-de-zi-fu-chuan-lcof	Medium	java	66.54% 58.76%	Math
0146	lru-cache	lru-cache	Medium	java	91.27% 67.29%	Design
Offer09	yong-liang-ge-zhan-shi-xian-dui-lie-lcof	yong-liang-ge-zhan-shi-xian-dui-lie-lcof	Easy	java	69.99% 40.92%	Queue, Stack

Pure Programming

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0151	reverse-words-in-a-string	reverse-words-in-a-string	Easy	java	100.00% 16.01%	Pure Programming
1360	number-of-days-between-two-dates	number-of-days-between-two-dates	Easy	java	100% 100%	Details
mst16.04	tic-tac-toe-lcci	tic-tac-toe-lcci	Medium	java	75.80% 5.19%	Pure Programming

Morris Traversal

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0114	flatten-binary-tree-to-linked-list	flatten-binary-tree-to-linked-list	Medium	java	100% 99.89%	Morris Traversal
0501	find-mode-in-binary-search-tree	find-mode-in-binary-search-tree	Easy	java	100% 100%	Morris Traversal

Merge

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0021	merge-two-sorted-lists	merge-two-sorted-lists	Easy	java	100.00% 79.05%	Linked List, Recursion
0023	merge-k-sorted-lists	merge-k-sorted-lists	Hard	java	84.07% 48.81%	Divide & Conquer

Union Find

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0547	friend-circles	friend-circles	Medium	java	99.93% 96.00%	Union Find
0990	satisfiability-of-equality-equations	satisfiability-of-equality-equations	Medium	java	100.00% 16.67%	Union Find

Divide & Conquer

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0215	kth-largest-element-in-an-array	kth-largest-element-in-an-array	Medium	java	99.87% 5.15%	Divide & Conquer, Heap
0241	different-ways-to-add-parentheses	different-ways-to-add-parentheses	Medium	java	100% 100%	Divide & Conquer

Concurrency

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
1114	print-in-order	print-in-order	Easy	java	100% 100%	Concurrency

Fast Slow Pointers

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0019	remove-nth-node-from-end-of-list	remove-nth-node-from-end-of-list	Medium-	java	100.00% 94.24%	Two Pointers

Hash Function

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0939	minimum-area-rectangle	minimum-area-rectangle	Medium	java	77.35% 100.00%	Hash Function

Graph

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0997	find-the-town-judge	find-the-town-judge	null	java	98.73% 100.00%	Graph

Greatest Common Divisor

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
1071	greatest-common-divisor-of-strings	greatest-common-divisor-of-strings	Easy	java	97.81% 100.00%	Greatest Common Divisor

Heap

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签
0703	kth-largest-element-in-a-stream	kth-largest-element-in-a-stream	null	java	99.55% 64.02%	Heap

Recursion

总结调整中，草稿内容请参考这里

题号	题目（官网）	题目（中国）	难度	代码	结果	标签