My leetcode solutions

Language: java python c++
Last updated: 2017-12-01

The source code is fetched using the tool leetcode-spider.

#	Problems	Solutions	Difficulty	Acceptance	Paid-Only
001	two-sum	java	Easy
002	add-two-numbers	java	Medium
003	longest-substring-without-repeating-characters	java	Medium
004	median-of-two-sorted-arrays	c++	Hard
005	longest-palindromic-substring	java	Medium
006	zigzag-conversion	java	Medium
007	reverse-integer	java	Easy
008	string-to-integer-atoi	java	Medium
009	palindrome-number	java	Easy
010	regular-expression-matching	java	Hard
011	container-with-most-water	java	Medium
012	integer-to-roman	java	Medium
013	roman-to-integer	java	Easy
014	longest-common-prefix	java	Easy
015	3sum	java	Medium
017	letter-combinations-of-a-phone-number	java	Medium
018	4sum	java	Medium	27.17%
020	valid-parentheses	java	Easy
021	merge-two-sorted-lists	java	Easy
022	generate-parentheses	java	Medium
023	merge-k-sorted-lists	java	Hard
025	reverse-nodes-in-k-group	python	Hard
026	remove-duplicates-from-sorted-array	c++ java	Easy
027	remove-element	java	Easy
028	implement-strstr	java	Easy
033	search-in-rotated-sorted-array	c++	Medium
036	valid-sudoku	java	Medium
038	count-and-say	java	Easy
039	combination-sum	python	Medium	39.98%
040	combination-sum-ii	python	Medium	34.82%
041	first-missing-positive	java	Hard
042	trapping-rain-water	java	Hard
043	multiply-strings	java	Medium
044	wildcard-matching	python	Hard
046	permutations	java	Medium
047	permutations-ii	python java	Medium	33.85%
048	rotate-image	java	Medium
049	anagrams	java	Medium
050	powx-n	java	Medium
053	maximum-subarray	java	Easy
054	spiral-matrix	java	Medium
056	merge-intervals	java	Medium
057	insert-interval	python	Hard
066	plus-one	java	Easy
067	add-binary	java	Easy
068	text-justification	python	Hard
069	sqrtx	java	Easy
070	climbing-stairs	java	Easy
071	simplify-path	python	Medium
072	edit-distance	java	Hard
073	set-matrix-zeroes	python	Medium
075	sort-colors	python	Medium
076	minimum-window-substring	python	Hard
078	subsets	python	Medium
079	word-search	java	Medium
080	remove-duplicates-from-sorted-array-ii	c++	Medium
081	search-in-rotated-sorted-array-ii	c++	Medium
082	remove-duplicates-from-sorted-list-ii	python	Medium	29.69%
085	maximal-rectangle	java	Hard
088	merge-sorted-array	java	Easy
089	gray-code	java	Medium
090	subsets-ii	python	Medium
091	decode-ways	python	Medium
096	unique-binary-search-trees	java	Medium
098	validate-binary-search-tree	python	Medium
100	same-tree	java	Easy
102	binary-tree-level-order-traversal	python	Medium
104	maximum-depth-of-binary-tree	java	Easy
110	balanced-binary-tree	java	Easy
116	populating-next-right-pointers-in-each-node	python	Medium
117	populating-next-right-pointers-in-each-node-ii	python	Medium
118	pascals-triangle	java	Easy
119	pascals-triangle-ii	python	Easy
121	best-time-to-buy-and-sell-stock	java	Easy
122	best-time-to-buy-and-sell-stock-ii	java	Easy
123	best-time-to-buy-and-sell-stock-iii	python	Hard	29.87%
125	valid-palindrome	python	Easy
126	word-ladder-ii	python	Hard
127	word-ladder	python	Medium
128	longest-consecutive-sequence	java	Hard
130	surrounded-regions	python	Medium	18.97%
133	clone-graph	python	Medium
134	gas-station	python	Medium	29.68%
136	single-number	java	Easy
137	single-number-ii	java	Medium
138	copy-list-with-random-pointer	java	Medium
139	word-break	java	Medium
141	linked-list-cycle	java	Easy
142	linked-list-cycle-ii	java	Medium
146	lru-cache	java	Hard
147	insertion-sort-list	java	Medium
148	sort-list	java	Medium
149	max-points-on-a-line	java	Hard
150	evaluate-reverse-polish-notation	java	Medium
151	reverse-words-in-a-string	java	Medium
152	maximum-product-subarray	java	Medium
153	find-minimum-in-rotated-sorted-array	java	Medium
155	min-stack	java	Easy
156	binary-tree-upside-down	java	Medium	45.20%	✔️
157	read-n-characters-given-read4	python	Easy
158	read-n-characters-given-read4-ii-call-multiple-times	python	Hard
159	longest-substring-with-at-most-two-distinct-characters	java	Hard	41.96%	✔️
160	intersection-of-two-linked-lists	java	Easy
161	one-edit-distance	python	Medium
162	find-peak-element	java	Medium
163	missing-ranges	python	Medium
164	maximum-gap	java	Hard
165	compare-version-numbers	python	Medium
167	two-sum-ii-input-array-is-sorted	python	Easy
168	excel-sheet-column-title	java	Easy
169	majority-element	java	Easy
170	two-sum-iii-data-structure-design	java	Easy
171	excel-sheet-column-number	java	Easy
172	factorial-trailing-zeroes	java	Easy
173	binary-search-tree-iterator	java	Medium
179	largest-number	java	Medium
186	reverse-words-in-a-string-ii	python	Medium
187	repeated-dna-sequences	java	Medium
188	best-time-to-buy-and-sell-stock-iv	java	Hard
189	rotate-array	java	Easy
190	reverse-bits	java	Easy
191	number-of-1-bits	java	Easy
198	house-robber	java	Easy
199	binary-tree-right-side-view	python	Medium
200	number-of-islands	java	Medium
202	happy-number	java	Easy
204	count-primes	java	Easy
205	isomorphic-strings	java	Easy	34.28%
206	reverse-linked-list	java	Easy
207	course-schedule	python	Medium
208	implement-trie-prefix-tree	python	Medium
209	minimum-size-subarray-sum	java	Medium
210	course-schedule-ii	python	Medium
211	add-and-search-word-data-structure-design	python	Medium
215	kth-largest-element-in-an-array	python	Medium
216	combination-sum-iii	python	Medium
217	contains-duplicate	java	Easy
218	the-skyline-problem	java	Hard
219	contains-duplicate-ii	java	Easy
220	contains-duplicate-iii	java	Medium
221	maximal-square	python	Medium
223	rectangle-area	java	Medium
225	implement-stack-using-queues	python	Easy	33.60%
226	invert-binary-tree	java	Easy
228	summary-ranges	java	Medium
229	majority-element-ii	java	Medium
231	power-of-two	java	Easy
232	implement-queue-using-stacks	python	Easy	37.46%
233	number-of-digit-one	java	Hard
234	palindrome-linked-list	java	Easy
235	lowest-common-ancestor-of-a-binary-search-tree	java	Easy
236	lowest-common-ancestor-of-a-binary-tree	python	Medium
237	delete-node-in-a-linked-list	java	Easy
238	product-of-array-except-self	java	Medium
239	sliding-window-maximum	python	Hard
240	search-a-2d-matrix-ii	java	Medium
242	valid-anagram	java	Easy
244	shortest-word-distance-ii	java	Medium
246	strobogrammatic-number	python	Easy
247	strobogrammatic-number-ii	python	Medium
252	meeting-rooms	python	Easy
253	meeting-rooms-ii	python java	Medium
257	binary-tree-paths	python	Easy
258	add-digits	c++ java	Easy
259	3sum-smaller	python	Medium
260	single-number-iii	java	Medium
261	graph-valid-tree	java python	Medium	38.15%	✔️
263	ugly-number	java	Easy
268	missing-number	java	Easy
269	alien-dictionary	python	Hard
271	encode-and-decode-strings	python	Medium
273	integer-to-english-words	java	Hard
274	h-index	python	Medium
275	h-index-ii	python	Medium
276	paint-fence	java	Easy	34.74%	✔️
277	find-the-celebrity	c++ python	Medium
278	first-bad-version	python	Easy
279	perfect-squares	java	Medium
280	wiggle-sort	python	Medium
281	zigzag-iterator	python	Medium
282	expression-add-operators	python	Hard
283	move-zeroes	java	Easy
285	inorder-successor-in-bst	python	Medium
286	walls-and-gates	python	Medium
287	find-the-duplicate-number	java	Medium
288	unique-word-abbreviation	python	Medium
289	game-of-life	java	Medium
292	nim-game	c++	Easy
293	flip-game	python	Easy	56.62%	✔️
294	flip-game-ii	python	Medium	46.66%	✔️
295	find-median-from-data-stream	python	Hard	28.11%
297	serialize-and-deserialize-binary-tree	python	Hard
298	binary-tree-longest-consecutive-sequence	python	Medium
299	bulls-and-cows	java	Medium	35.42%
300	longest-increasing-subsequence	java python	Medium	38.69%
301	remove-invalid-parentheses	java	Hard
305	number-of-islands-ii	python	Hard
306	additive-number	java	Medium
308	range-sum-query-2d-mutable	python	Hard
311	sparse-matrix-multiplication	python	Medium
314	binary-tree-vertical-order-traversal	python	Medium
315	count-of-smaller-numbers-after-self	java python	Hard	34.78%
316	remove-duplicate-letters	java	Hard
317	shortest-distance-from-all-buildings	python	Hard
319	bulb-switcher	java	Medium
320	generalized-abbreviation	python	Medium
322	coin-change	python	Medium	26.70%
325	maximum-size-subarray-sum-equals-k	java	Medium
326	power-of-three	java	Easy
328	odd-even-linked-list	java	Medium
329	longest-increasing-path-in-a-matrix	java	Hard	36.86%
334	increasing-triplet-subsequence	python	Medium
335	self-crossing	java	Hard
336	palindrome-pairs	java	Hard
337	house-robber-iii	java	Medium	44.09%
338	counting-bits	java	Medium
339	nested-list-weight-sum	java	Easy
340	longest-substring-with-at-most-k-distinct-characters	python	Hard
341	flatten-nested-list-iterator	python	Medium
344	reverse-string	c++	Easy
345	reverse-vowels-of-a-string	java	Easy
346	moving-average-from-data-stream	python	Easy
347	top-k-frequent-elements	java	Medium
349	intersection-of-two-arrays	java	Easy
351	android-unlock-patterns	python	Medium
355	design-twitter	python	Medium
361	bomb-enemy	python	Medium
364	nested-list-weight-sum-ii	java	Medium
371	sum-of-two-integers	c++	Easy
374	guess-number-higher-or-lower	java	Easy
375	guess-number-higher-or-lower-ii	python	Medium	35.89%
377	combination-sum-iv	python	Medium
380	insert-delete-getrandom-o1	python	Medium
381	insert-delete-getrandom-o1-duplicates-allowed	python	Hard	29.15%
382	linked-list-random-node	python	Medium	47.19%
383	ransom-note	java	Easy
384	shuffle-an-array	java	Medium
387	first-unique-character-in-a-string	java	Easy
388	longest-absolute-file-path	java	Medium
393	utf-8-validation	python	Medium
394	decode-string	python	Medium
398	random-pick-index	python	Medium
399	evaluate-division	python	Medium	41.62%
404	sum-of-left-leaves	python	Easy
406	queue-reconstruction-by-height	python	Medium
410	split-array-largest-sum	java	Hard	38.73%
412	fizz-buzz	java	Easy
414	third-maximum-number	python	Easy
417	pacific-atlantic-water-flow	java	Medium	34.16%
418	sentence-screen-fitting	python	Medium
419	battleships-in-a-board	java	Medium
420	strong-password-checker	python	Hard	20.51%
425	word-squares	python	Hard
438	find-all-anagrams-in-a-string	python	Easy
449	serialize-and-deserialize-bst	python	Medium
460	lfu-cache	python	Hard
461	hamming-distance	java	Easy
463	island-perimeter	java	Easy
482	license-key-formatting	python	Medium
494	target-sum	python	Medium
496	next-greater-element-i	python	Easy	56.61%
500	keyboard-row	java	Easy	59.80%
503	next-greater-element-ii	python	Medium	47.39%
523	continuous-subarray-sum	python	Medium
524	longest-word-in-dictionary-through-deleting	python java	Medium	43.34%
535	encode-and-decode-tinyurl	python	Medium
538	convert-bst-to-greater-tree	java	Easy	49.14%
556	next-greater-element-iii	java	Medium	28.96%
564	find-the-closest-palindrome	python	Hard	17.50%
568	maximum-vacation-days	python java	Hard	39.18%	✔️
572	subtree-of-another-tree	python	Easy	40.66%
599	minimum-index-sum-of-two-lists	python	Easy	46.37%
616	add-bold-tag-in-string	java	Medium	38.78%	✔️
617	merge-two-binary-trees	python	Easy
621	task-scheduler	python	Medium	42.38%
628	maximum-product-of-three-numbers	python	Easy	45.02%
681	next-closest-time	java python	Medium	43.16%	✔️
683	k-empty-slots	java python	Hard	36.50%	✔️
686	repeated-string-match	java	Easy	33.72%
687	longest-univalue-path	java	Easy	33.49%
688	knight-probability-in-chessboard	python	Medium	39.00%
693	binary-number-with-alternating-bits		Easy	54.51%
694	number-of-distinct-islands		Medium	44.19%	✔️
695	max-area-of-island		Easy	52.22%
720	longest-word-in-dictionary		Easy	40.50%
721	accounts-merge	python	Medium	28.58%