LeetCode Solutions by illuz

Updating....

My stupid How to LeetCode.

This is my leetcode solution folder. :)
Language: C++/Java/Python/Sql/Shell Script

If there was something wrong, can contact me at iilluzen in google's email.

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Links:

Leetcode Algorithms Problems
Leetcode Database Problems
Leetcode Shell Problems

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Problems

There are 333 problems (54 problems for a fee).

I have solved 229 / 279 problems.=w=

#	Problems	Solutions	Note
001	001.Two_Sum	Java Python C++	Notes
002	002.Add_Two_Numbers	C++ Python Java	Notes
003	003.Longest_Substring_Without_Repeat...	Java Python C++	Notes
004	004.Median_of_Two_Sorted_Arrays	Java Python C++	Notes
005	005.Longest_Palindromic_Substring	Java Python C++	Notes
006	006.ZigZag_Conversion	C++ Python Java	Notes
007	007.Reverse_Integer	C++ Python Java	Notes
008	008.String_to_Integer	C++ Python Java	Notes
009	009.Palindrome_Number	Java Python C++	Notes
010	010.Regular_Expression_Matching	C++ Python Java	Notes
011	011.Container_With_Most_Water	Java Python C++	Notes
012	012.Integer_to_Roman	Java Python C++	Notes
013	013.Roman_to_Integer	Java Python C++	Notes
014	014.Longest_Common_Prefix	C++ Python Java	Notes
015	015.3Sum	C++ Python Java	Notes
016	016.3Sum_Closest	C++ Python Java	Notes
017	017.Letter_Combinations_of_a_Phone_Number	C++ Python Java	Notes
018	018.4Sum	C++ Python Java	Notes
019	019.Remove_Nth_Node_From_End_of_List	Python C++	Notes
020	020.Valid_Parentheses	C++ Python Java	Notes
021	021.Merge_Two_Sorted_Lists	Python C++	Notes
022	022.Generate_Parentheses	C++ Python Java	Notes
023	023.Merge_k_Sorted_Lists	Java Python C++	Notes
024	024.Swap_Nodes_in_Pairs	Python C++	Notes
025	025.Reverse_Nodes_in_k-Group	Java C++	Notes
026	026.Remove_Duplicates_from_Sorted_Array	C++	Notes
027	027.Remove_Element	C++	Notes
028	028.Implement_strStr()	Python C++	Notes
029	029.Divide_Two_Integers	Python C++	Notes
030	030.Substring_with_Concatenation_of_...	C++ Java	Notes
031	031.Next_Permutation	Python C++	Notes
032	032.Longest_Valid_Parentheses	C++	Notes
033	033.Search_in_Rotated_Sorted_Array	C++	Notes
034	034.Search_for_a_Range	Java C++	Notes
035	035.Search_Insert_Position	C++	Notes
036	036.Valid_Sudoku	C++	Notes
037	037.Sudoku_Solver	C++	Notes
038	038.Count_and_Say	Python C++	Notes
039	039.Combination_Sum	C++	Notes
040	040.Combination_Sum_II	C++	Notes
041	041.First_Missing_Positive	C++	Coming soon
042	042.Trapping_Rain_Water	C++	Coming soon
043	043.Multiply_Strings	C++	Coming soon
044	044.Wildcard_Matching	C++	Coming soon
045	045.Jump_Game_II	C++	Coming soon
046	046.Permutations	C++	Coming soon
047	047.Permutations_II	C++	Coming soon
048	048.Rotate_Image	C++	Coming soon
049	049.Anagrams	C++	Coming soon
050	050.Pow(x,_n)	C++	Coming soon
051	051.N-Queens	C++ Python Java	Coming soon
052	052.N-Queens_II	C++ Python Java	Coming soon
053	053.Maximum_Subarray	C++	Coming soon
054	054.Spiral_Matrix	C++	Coming soon
055	055.Jump_Game	C++	Coming soon
056	056.Merge_Intervals	C++	Coming soon
057	057.Insert_Interval	C++	Coming soon
058	058.Length_of_Last_Word	C++	Coming soon
059	059.Spiral_Matrix_II	C++	Coming soon
060	060.Permutation_Sequence	C++	Coming soon
061	061.Rotate_List	C++	Coming soon
062	062.Unique_Paths	C++	Coming soon
063	063.Unique_Paths_II	C++	Coming soon
064	064.Minimum_Path_Sum	C++	Coming soon
065	065.Valid_Number	Java Python C++	Coming soon
066	066.Plus_One	C++	Coming soon
067	067.Add_Binary	C++	Coming soon
068	068.Text_Justification	C++ Python Java	Notes
069	069.Sqrt(x)	C++ Python Java	Coming soon
070	070.Climbing_Stairs	C++	Coming soon
071	071.Simplify_Path	C++ Python Java	Coming soon
072	072.Edit_Distance	C++	Coming soon
073	073.Set_Matrix_Zeroes	C++	Coming soon
074	074.Search_a_2D_Matrix	C++	Coming soon
075	075.Sort_Colors	C++	Coming soon
076	076.Minimum_Window_Substring	C++	Notes
077	077.Combinations	C++	Coming soon
078	078.Subsets	Java Python C++	Coming soon
079	079.Word_Search	C++	Coming soon
080	080.Remove_Duplicates_from_Sorted_Array_II	C++	Coming soon
081	081.Search_in_Rotated_Sorted_Array_II	C++	Coming soon
082	082.Remove_Duplicates_from_Sorted_List_II	C++	Coming soon
083	083.Remove_Duplicates_from_Sorted_List	C++	Coming soon
084	084.Largest_Rectangle_in_Histogram	Java C++	Notes
085	085.Maximal_Rectangle	Java C++	Notes
086	086.Partition_List	C++ Python Java	Coming soon
087	087.Scramble_String	C++ Python Java	Notes
088	088.Merge_Sorted_Array	C++	Coming soon
089	089.Gray_Code	C++ Python Java	Coming soon
090	090.Subsets_II	C++ Python Java	Coming soon
091	091.Decode_Ways	Java Python C++	Coming soon
092	092.Reverse_Linked_List_II	C++	Coming soon
093	093.Restore_IP_Addresses	C++ Python Java	Notes
094	094.Binary_Tree_Inorder_Traversal	C++	Coming soon
095	095.Unique_Binary_Search_Trees	C++	Notes
096	096.Unique_Binary_Search_Trees_II	C++	Notes
097	097.Interleaving_String	Java C++	Notes
098	098.Validate_Binary_Search_Tree	Java Python C++	Notes
099	099.Recover_Binary_Search_Tree	Python C++	Notes
100	100.Same_Tree	C++	Coming soon
101	101.Symmetric_Tree	C++	Coming soon
102	102.Binary_Tree_Level_Order_Traversal	Python C++	Notes
103	103.Binary_Tree_Zigzag_Level_Order_Traversal	Python C++	Notes
104	104.Maximum_Depth_of_Binary_Tree	C++	Coming soon
105	105.Construct_Binary_Tree_from_Preor...	C++	Notes
106	106.Construct_Binary_Tree_from_Inord...	C++	Notes
107	107.Binary_Tree_Level_Order_Traversal_II	Python C++	Notes
108	108.Convert_Sorted_Array_to_Binary_S...	C++	Notes
109	109.Convert_Sorted_List_to_Binary_Se...	Python C++	Notes
110	110.Balanced_Binary_Tree	C++	Coming soon
111	111.Minimum_Depth_of_Binary_Tree	C++	Coming soon
112	112.Path_Sum	C++	Coming soon
113	113.Path_Sum_II	Java Python C++	Coming soon
114	114.Flatten_Binary_Tree_to_Linked_List	Java C++	Notes
115	115.Distinct_Subsequences	Python C++	Notes
116	116.Populating_Next_Right_Pointers_i...	C++ Python Java	Coming soon
117	117.Populating_Next_Right_Pointers_i...	C++ Python Java	Coming soon
118	118.Pascal's_Triangle	C++	Coming soon
119	119.Pascal's_Triangle_II	C++	Coming soon
120	120.Triangle	Java Python C++	Coming soon
121	121.Best_Time_to_Buy_and_Sell_Stock	Python C++	Notes
122	122.Best_Time_to_Buy_and_Sell_Stock_II	Python C++	Notes
123	123.Best_Time_to_Buy_and_Sell_Stock_III	Python C++	Notes
124	124.Binary_Tree_Maximum_Path_Sum	Python C++	Notes
125	125.Valid_Palindrome	C++	Coming soon
126	126.Word_Ladder	Python C++	Notes
126	126.Word_Ladder_II		Coming soon
127	127.Word_Ladder		Coming soon
128	128.Longest_Consecutive_Sequence		Coming soon
129	129.Sum_Root_to_Leaf_Numbers	C++	Coming soon
130	130.Surrounded_Regions	C++	Notes
131	131.Palindrome_Partitioning	Python C++	Notes
132	132.Palindrome_Partitioning_II	C++ Java	Notes
133	133.Clone_Graph	C++	Coming soon
134	134.Gas_Station	C++	Notes
135	135.Candy		Coming soon
136	136.Single_Number	C++	Notes
137	137.Single_Number_II	C++	Coming soon
138	138.Copy_List_with_Random_Pointer	Java Python C++	Notes
139	139.Word_Break	Python C++	Notes
140	140.Word_Break_II		Coming soon
141	141.Linked_List_Cycle	C++	Coming soon
142	142.Linked_List_Cycle_II		Coming soon
143	143.Reorder_List	C++	Coming soon
144	144.Binary_Tree_Preorder_Traversal	C++	Coming soon
145	145.Binary_Tree_Postorder_Traversal	C++	Coming soon
146	146.LRU_Cache	Python C++	Notes
147	147.Insertion_Sort_List	C++	Coming soon
148	148.Sort_List	C++	Notes
149	149.Max_Points_on_a_Line		Coming soon
150	150.Evaluate_Reverse_Polish_Notation	Java Python C++	Notes
151	151.Reverse_Words_in_a_String	C++ Python Java	Notes
152	152.Maximum_Product_Subarray	C++	Coming soon
153	153.Find_Minimum_in_Rotated_Sorted_Array	C++	Notes
154	154.Find_Minimum_in_Rotated_Sorted_Array_II	Python C++	Notes
155	155.Min_Stack	C++	Notes
156	156.Binary_Tree_Upside_Down $	Not Buy	Not Buy
157	157.Read_N_Characters_Given_Read4 $	Not Buy	Not Buy
158	158.Read_N_Characters_Given_Read4_II... $	Not Buy	Not Buy
159	159.Longest_Substring_with_At_Most_T... $	Not Buy	Not Buy
160	160.Intersection_of_Two_Linked_Lists	C++	Coming soon
161	161.One_Edit_Distance $	Not Buy	Not Buy
162	162.Find_Peak_Element	C++ Python Java	Coming soon
163	163.Missing_Ranges $	Not Buy	Not Buy
164	164.Maximum_Gap	C++	Notes
165	165.Compare_Version_Numbers	C++	Coming soon
166	166.Fraction_to_Recurring_Decimal	C++	Notes
167	167.Two_Sum_II_-_Input_array_is_sorted $	Not Buy	Not Buy
168	168.Excel_Sheet_Column_Title	Java Python C++	Coming soon
169	169.Majority_Element	Java Python C++	Coming soon
170	170.Two_Sum_III_-_Data_structure_design $	Not Buy	Not Buy
171	171.Excel_Sheet_Column_Number	Java Python C++	Coming soon
172	172.Factorial_Trailing_Zeroes	Java Python C++	Coming soon
173	173.Binary_Search_Tree_Iterator	Python C++	Notes
174	174.Dungeon_Game		Coming soon
175	175.Combine_Two_Tables	Sql	Coming soon
176	176.Second_Highest_Salary	Sql	Coming soon
177	177.Nth_Highest_Salary	Sql	Notes
178	178.Rank_Scores	Sql	Notes
179	179.Largest_Number	Java Python C++	Coming soon
180	180.Consecutive_Numbers	Sql	Notes
181	181.Employees_Earning_More_Than_Thei...	Sql	Coming soon
182	182.Duplicate_Emails	Sql	Coming soon
183	183.Customers_Who_Never_Order	Sql	Notes
184	184.Department_Highest_Salary	Sql	Notes
186	186.Reverse_Words_in_a_String_II $	Not Buy	Not Buy
187	187.Repeated_DNA_Sequences	C++ Python Java	Coming soon
188	188.Best_Time_to_Buy_and_Sell_Stock_IV	C++	Notes
189	189.Rotate_Array	C++	Notes
190	190.Reverse_Bits	C++ Python Java	Notes
191	191.Number_of_1_Bits	C++ Java	Notes
192	192.Word_Frequency	Shell	Notes
193	193.Valid_Phone_Numbers	Shell	Notes
194	194.Transpose_File	Shell	Notes
195	195.Tenth_Line	Shell	Notes
196	196.Delete_Duplicate_Emails	Sql	Coming soon
197	197.Rising_Temperature	Sql	Notes
198	198.House_Robber	C++	Notes
199	199.Binary_Tree_Right_Side_View	Python C++	Notes
200	200.Number_of_Islands	C++	Notes
201	201.Bitwise_AND_of_Numbers_Range	Python C++	Notes
202	202.Happy_Number	Python C++	Notes
203	203.Remove_Linked_List_Elements	C++ Python Java	Notes
204	204.Count_Primes	C++	Coming soon
205	205.Isomorphic_Strings	Python C++	Notes
206	206.Reverse_Linked_List	C++	Coming soon
207	207.Course_Schedule	Python C++	Notes
208	208.Implement_Trie_(Prefix_Tree)	C++	Notes
209	209.Minimum_Size_Subarray_Sum	C++	Coming soon
210	210.Course_Schedule_II	Python C++	Notes
211	211.Add_and_Search_Word_-_Data_struc...		Coming soon
212	212.Word_Search_II		Coming soon
213	213.House_Robber_II		Coming soon
214	214.Shortest_Palindrome		Coming soon
215	215.Kth_Largest_Element_in_an_Array	C++ Python Java	Notes
216	216.Combination_Sum_III	C++	Notes
217	217.Contains_Duplicate	Python C++	Notes
218	218.The_Skyline_Problem		Coming soon
219	219.Contains_Duplicate_II	C++	Notes
220	220.Contains_Duplicate_III	C++ Java	Notes
221	221.Maximal_Square	Python C++	Notes
222	222.Count_Complete_Tree_Nodes	Python C++	Notes
223	223.Rectangle_Area	C++	Notes
224	224.Basic_Calculator	Java C++	Notes
225	225.Implement_Stack_using_Queues	Java C++	Notes
226	226.Invert_Binary_Tree	Python C++	Notes
227	227.Basic_Calculator_II		Coming soon
228	228.Summary_Ranges	Python C++	Notes
229	229.Majority_Element_II		Coming soon
230	230.Kth_Smallest_Element_in_a_BST	C++	Notes
231	231.Power_of_Two	Python C++	Notes
232	232.Implement_Queue_using_Stacks	Python C++	Notes
233	233.Number_of_Digit_One		Coming soon
234	234.Palindrome_Linked_List	Java Python C++	Notes
235	235.Lowest_Common_Ancestor_of_a_Bina...	Python C++	Notes
236	236.Lowest_Common_Ancestor_of_a_Binary_Tree		Coming soon
237	237.Delete_Node_in_a_Linked_List	Python C++	Notes
238	238.Product_of_Array_Except_Self	Java Python C++	Notes
239	239.Sliding_Window_Maximum	Python C++	Notes
240	240.Search_a_2D_Matrix_II		Coming soon
241	241.Different_Ways_to_Add_Parentheses	Python C++	Notes
242	242.Valid_Anagram	Python C++	Notes
243	243.Shortest_Word_Distance $	Not Buy	Not Buy
244	244.Shortest_Word_Distance_II $	Not Buy	Not Buy
245	245.Shortest_Word_Distance_III $	Not Buy	Not Buy
246	246.Strobogrammatic_Number $	Not Buy	Not Buy
247	247.Strobogrammatic_Number_II $	Not Buy	Not Buy
248	248.Strobogrammatic_Number_III $	Not Buy	Not Buy
249	249.Group_Shifted_Strings $	Not Buy	Not Buy
250	250.Count_Univalue_Subtrees $	Not Buy	Not Buy
251	251.Flatten_2D_Vector $	Not Buy	Not Buy
252	252.Meeting_Rooms $	Not Buy	Not Buy
253	253.Meeting_Rooms_II $	Not Buy	Not Buy
254	254.Factor_Combinations $	Not Buy	Not Buy
255	255.Verify_Preorder_Sequence_in_Bina... $	Not Buy	Not Buy
256	256.Paint_House $	Not Buy	Not Buy
257	257.Binary_Tree_Paths	Python C++	Notes
258	258.Add_Digits	Python C++	Notes
259	259.3Sum_Smaller $	Not Buy	Not Buy
260	260.Single_Number_III		Coming soon
261	261.Graph_Valid_Tree $	Not Buy	Not Buy
263	263.Ugly_Number	Python C++	Notes
264	264.Ugly_Number_II		Coming soon
265	265.Paint_House_II $	Not Buy	Not Buy
266	266.Palindrome_Permutation $	Not Buy	Not Buy
267	267.Palindrome_Permutation_II $	Not Buy	Not Buy
268	268.Missing_Number	C++ Python Java	Notes
269	269.Alien_Dictionary $	Not Buy	Not Buy
270	270.Closest_Binary_Search_Tree_Value $	Not Buy	Not Buy
271	271.Encode_and_Decode_Strings $	Not Buy	Not Buy
272	272.Closest_Binary_Search_Tree_Value_II $	Not Buy	Not Buy
273	273.Integer_to_English_Words		Coming soon
274	274.H-Index		Coming soon
275	275.H-Index_II		Coming soon
276	276.Paint_Fence $	Not Buy	Not Buy
277	277.Find_the_Celebrity $	Not Buy	Not Buy
278	278.First_Bad_Version	Python C++	Notes
279	279.Perfect_Squares	Python C++	Notes
280	280.Wiggle_Sort $	Not Buy	Not Buy
281	281.Zigzag_Iterator $	Not Buy	Not Buy
282	282.Expression_Add_Operators		Coming soon
283	283.Move_Zeroes	C++	Notes
284	284.Peeking_Iterator		Coming soon
285	285.Inorder_Successor_in_BST $	Not Buy	Not Buy
286	286.Walls_and_Gates $	Not Buy	Not Buy
287	287.Find_the_Duplicate_Number		Coming soon
288	288.Unique_Word_Abbreviation $	Not Buy	Not Buy
289	289.Game_of_Life	Python C++	Notes
290	290.Word_Pattern	Python C++	Notes
291	291.Word_Pattern_II $	Not Buy	Not Buy
292	292.Nim_Game	C++	Notes
293	293.Flip_Game $	Not Buy	Not Buy
294	294.Flip_Game_II $	Not Buy	Not Buy
295	295.Find_Median_from_Data_Stream		Coming soon
296	296.Best_Meeting_Point $	Not Buy	Not Buy
297	297.Serialize_and_Deserialize_Binary_Tree		Coming soon
298	298.Binary_Tree_Longest_Consecutive_Sequence $	Not Buy	Not Buy
299	299.Bulls_and_Cows	C++	Coming soon
300	300.Longest_Increasing_Subsequence		Coming soon
301	301.Remove_Invalid_Parentheses		Coming soon
302	302.Smallest_Rectangle_Enclosing_Bla... $	Not Buy	Not Buy
303	303.Range_Sum_Query_-_Immutable		Coming soon
304	304.Range_Sum_Query_2D_-_Immutable		Coming soon
305	305.Number_of_Islands_II $	Not Buy	Not Buy
306	306.Additive_Number		Coming soon
307	307.Range_Sum_Query_-_Mutable		Coming soon
308	308.Range_Sum_Query_2D_-_Mutable $	Not Buy	Not Buy
309	309.Best_Time_to_Buy_and_Sell_Stock_...		Coming soon
310	310.Minimum_Height_Trees		Coming soon
311	311.Sparse_Matrix_Multiplication $	Not Buy	Not Buy
312	312.Burst_Balloons		Coming soon
313	313.Super_Ugly_Number		Coming soon
314	314.Binary_Tree_Vertical_Order_Traversal $	Not Buy	Not Buy
315	315.Count_of_Smaller_Numbers_After_Self		Coming soon
316	316.Remove_Duplicate_Letters		Coming soon
317	317.Shortest_Distance_from_All_Buildings $	Not Buy	Not Buy
318	318.Maximum_Product_of_Word_Lengths		Coming soon
319	319.Bulb_Switcher		Coming soon
320	320.Generalized_Abbreviation $	Not Buy	Not Buy
321	321.Create_Maximum_Number		Coming soon
322	322.Coin_Change		Coming soon
323	323.Number_of_Connected_Components_i... $	Not Buy	Not Buy
324	324.Wiggle_Sort_II		Coming soon
325	325.Maximum_Size_Subarray_Sum_Equals_k $	Not Buy	Not Buy
326	326.Power_of_Three	C++ Python Java	Notes
327	327.Count_of_Range_Sum		Coming soon
328	328.Odd_Even_Linked_List	Python C++	Notes
329	329.Longest_Increasing_Path_in_a_Matrix		Coming soon
330	330.Patching_Array		Coming soon
331	331.Verify_Preorder_Serialization_of...		Coming soon
332	332.Reconstruct_Itinerary		Coming soon
333	333.Largest_BST_Subtree $	Not Buy	Not Buy
334	334.Increasing_Triplet_Subsequence	C++	Notes