实例介绍
【实例简介】
LeetCode答案整理，是一个风场好的大拿资源大全。如果你想面试，是非常有用的
36. Valid sudoku.…15 37 Sudoku solver 38. Count and say.. 16 39. Combinatⅰ on sun. 16 40. Com bination Sum ll :::.:::·::::..·: 17 41. First Missing Positive 17 42. Trapping rain water...... 43. Multiply Strings…… :.:.:::·::::.::::.::.:::::::::::::::::::a:::::::::::::·:.:.:::::::: 44. Wildcard matchin 着非自自,‖着着自音·,·自重自自,自。自 1重非 19 45. Jump Game I 20 46. Permutations.………………,20 47. Permutations‖l. 48 Rotate image 21 49 Group Anagrams… 21 50.Pow(x,n)..... :.::::::::::.::.:: 21 51 QueenS..... 22 52. N-Queens ll 23 53. Maximum Subarray ............ 54. Spiral Matrix..... ∴24 55. Jump game……, 24 Merge Intervals………,…,…,…,…,,…,…,…,…,…,…,…,…,…,…,,……,………,……25 57 Insert Interval 25 58. Length of Last Word 25 59. Spiral matrix… 2 60. Permutation Sequence........ 26 61. Rotate list 27 62. Unique Paths.. 27 63 Unique Paths Il ...:...a..:::::·:: 27 64 Minimum Path Sum ,,着·,,,看看看 28 65 Valid number… 28 66. Plus one ·看·音 29 67. Add Binary.,,…,…,… 29 68. Text justification 29 69. Sqrt(x)........... ,30 70. Climbing stairs........... 30 71. Simplify path 31 Edit distance 31 73. Set matrⅸ X Zeroes∴.31 74. Search a 2D Matrix 32 75. Sort colors∴ 32 76. Minimum Window Substring 33 Combinations ::.:::::.:::.::::::::.::a:::.:::::..::::·::a ···:::·日.:::::::.::· :··:::·::: 33 78. Subsets 34 79. Word search 34 80. Remove duplicates from Sorted array‖...… ::::::..::::a::a::: 自,着自非着自1面自音非自着D自自自非非 35 81. Search in Rotated Sorted array‖l…..… 1重非 35 82. Remove Duplicates from Sorted List Il 35 83. Remove duplicates from Sorted 84. Largest Rectangle in Histogram.,,…,… 36 85. Maximal rectangle 37 86 Partition list 38 87. Scramble string..................….………………38 68. Merge sorted array..................... 39 9. Gray code 39 90. Subsets‖l 39 91. Decode ways.. 40 92. Reverse linked list ll 40 93.Restoreipaddresses,wwwwwwwwwwwwww.40 94. Binary Tree Inorder Traversal 41 95. Unique Binary search Trees Il......... 41 96. Unique Binary Search Trees 42 97. interleaving String……,…,…,…,…,,…,…,…,,…,…,…,…,…,,,……,…,…………42 98. Validate Binary search tree 42 99. Recover Binary Search Tree ,43 100. Same Tree 1。D·自看着,自, 43 101. Symmetric Tree 重着看 44 102. Binary Tree Level Order Traversal 45 Inary iree2 gag Level order traversal………………………………………………………………… 104. Maximum Depth of Binary Tree 46 105. Construct Binary Tree from Preorder and Inorder traversal 46 106. Construct Binary Tree from Inorder and Postorder traversal ....................... 46 107. Binary Tree Level Order Traversal ll 47 108. Convert Sorted Array to binary search tree. 109. Convert Sorted list to Binary search tree .47 110. Balanced Binary Tree..........48 111. Minimum Depth of Binary tree.…… 112. Path Sum 48 113. Path sun‖ 49 114. Flatten Binary tree to linked List ····.:·日.:::::::.::· ,49 115. Distinct Subsequences 50 116. Populating Next Right Pointers in Each Node 117. Populating next Right Pointers in Each Node 18. Pascals Triangle……, 1重非 51 119. Pascal' s Triangle ll 2 120. Triangle........................... 52 121. Best time to buy and sell stock 52 122. Best Time to buy and sell Stock lL................. 53 123. best Time to buy and sell stock ill 53 124. Binary Tree Maximum Path Sum.................. ·1 53 125. Valid palindrome……… 53 126. Word ladder ll 154 127. Word ladder 55 128. Longest Consecutive Sequence..,…,… ∴156 129. Sum root to leaf numbers 56 130. Surrounded regions……,…,…,…,…,…,…,,…,…,…,…,,…,…………………,………57 131. Palindrome Partitioning .57 132. Palindrome Partitioning ll 158 133. Clone Graph.……… 9 134. Gas station wwwWWW 59 135. Cand 59 136. Single number… 60 137. Single Number|.….…… 60 138. Copy List with Random pointer 重着看 60 139. Word Break 60 140. Word breakⅢ 61 141. Linked List cycle 61 142. Linked List Cycle Il 61 143. Reorder list.……, 62 144. Binary Tree preorder traversal.. 62 145. Binary tree postorder traversal.…….…………,,……,…………,…,……………………………….63 146. LRU Cache 63 147. Insertion sort list……………………,……………………….164 148. Sort list 64 149. Max points on a lir .64 150.EⅤa| uate reverse po| ish notation… 65 151. Reverse Words in a String....,.,,,,,…… 66 152. Maximum Product Subarray…,…,,,…, 66 153. Find Minimum in rotated Sorted array 67 154. Find minimum in rotated sorted array 155. Min Stack ∴67 156. Binary Tree Upside Down 68 157. Read n characters given read4 ..:.:B.:::.:a:.::::::::..:.:..:a::::::::B:.:::.:.::.· …69 158. Read N Characters Given Read4 ll-Call multiple times...............................69 159. Longest Substring with At Most Two Distinct Characters ∴69 160. Intersection of two linked lists 70 161. One edit distance 70 162. Find peak e| ement…… ,70 163. Missing Ranges………,…,…,…,…,,…,…,,…,…,,…,…,,…,,…,………71 164. Maximum Gap…… 71 165. Compare Version Numbers 72 166.「 raction to Recurring decima|......……72 167. Two Sum- nput array is sorted…..………..…,…,…,…,….,…,…,…,…,…,…,…,………,173 168. Excel sheet column title 169. Majority Element……,…,………………………73 170. Two Sum Ill -Data structure design ∴73 171. Excel sheet column number ww....wwww 74 172. Factorial Trailing Zeroes .74 173. Binary Search tree Iterator........ 74 174. Dungeon game.…,…,,… 75 175. Com bine two tables ,,着·,,,看看看 176. Second Highest Salary .76 177. Nth Highest Salary........ ·看·音 …76 178. Rank scores 77 179. Largest Number…………………,…,…,…,…,……,…,…………7 180. Consecutive numbers ……7 181. Employees Earning More Than Their Managers 182. Duplicate emails 着着,日音着量,套看 78 183. Customers Who Never order .79 184. Department Highest salary….....,.,.,.,.,.,.,...,.…,…19 185. Department Top Three Salaries. 80 186. Reverse Words in a string ll ,81 187. Repeated DNA Sequences 81 188. Best time to buy and sell stock iv ···:::·日.:::::::.::· :··:::·::: 81 189. Rotate array… ∴82 190. Reverse bits 82 191. Number of l Bits wwwwwwwwwwwwwwwwwwwwwwwwwwwwwww 82 192. Word Frequency 83 193. Valid Phone numbers 83 194. Transpose file..............……83 195. Tenth line.……,……… 84 196. Delete duplicate emails.... ∴84 197. Rising Temperature.... 85 198. House robber….…………………………………………85 199. Binary tree right Side view 85 200. Number of islands 86 201. Bitwise ANd of Numbers range 87 202. Happy Number.......... 87 203. Remove Linked list elements 87 204. Count primes…87 205. Isomorphic Strings 88 206. Reverse Linked List 88 207. Course schedule… 88 208. Implement Trie(Prefix tree) 89 209. Minimum Size Subarray sum. 89 210. Course schedu|eⅡ 90 211. Add and Search Word-Data structure design a::.::·::.:.·::· 1。D·自看着,:自 91 212. Word Search Il 重着看 91 213. House robber ll 92 214. Shortest palindrome ·看·音 93 215. Kth Largest Element in an Array…… 93 216. Combination sumⅢ 93 217. Contains duplicate ,94 218. The skyline 219. Contains Duplicate Il 95 220. Contains Duplicate Ill 95 221. Maximal Square… ..a:::a:::.:.aa..:a:a:a.:aa:::::.a::.:::::.:a·:a 95 222. Count Complete Tree Nodes 223. Rectangle area 96 asic calculator 96 225. Implement Stack using Queues.....,……… ····.:·日.:::::::.::· 97 226. Invert Binary Tree 97 227. Basic Calculator ll 98 228. Summary ranges……,…,… 99 229. Majority Element|....,,,,……,… 1重非 99 230. Kth Smallest element in a bst 100 231. Power of two……….………………100 232. Implement Queue using Stacks 100 233. Number of digit One 101 234. Palindrome linked list 101 235. Lowest Common Ancestor of a binary search 236. Lowest Common Ancestor of a Binary tree 102 237. Delete node in a Linked list 102 238. Product of Array except self 102 239. Sliding Window Maximum ............ 103 240. Search a 2D Matrix Il 103 241. Different Ways to Add parentheses. ..................................................................................................104 242. Valid Anagram 104 243. Shortest word distance 着:· 105 244. Shortest Word distance ll ……105 245. Shortest Word distance lll 106 246. Strobogrammatic Number 106 247. Strobogrammatic Number Il..... 106 248. Strobogrammatic Number ll...…… 107 249. Group Shifted Strings 107 250. Count Univalue Subtrees 107 251. Flatten2D∨ ector ……………108 252. Meeting Rooms 108 253. Meeting rooms‖ 109 254. Factor Combinations :::".:::.::::::::a::::::::::::::::::::::.:: 109 255. Verify preorder sequence in binary Search Tree .. ..:::..:a::.:::·.::::·a::::a .110 256. Paint house 257. Binary Tree Paths 110 258. Add Digits.....,,….,…,………,111 259. 3Sum Smaller 111 260. Single Number Ill 111 261. Graph Valid Tree......... 112 262. Trips and Users.,...,.,...,,…,,,… 12 263. Ugly Number∴ 113 264. Ugly Number Il..… 113 265 Paint house ll..wwN 114 266. Palindrome permutation 着非自自,‖着着自音·,·自重自自,自。自 1重非 114 267. Palindrome permutation Il 114 268. Missing 269. Alien Dictionary ..................... 15 270. Closest Binary Search Tree value.......... 116 271. Encode and decode strings .117 272. Closest Binary Search Tree value‖…......………117 273. Integer to English Words....... ∴18 274. H-Index 118 275.H-ndeⅹⅢ. 119 276. Paint fence .119 277. Find the celebrity . 119 278. First bad version∴.………120 279. Perfect .120 280. Wiggle Sort.... 120 281. Zigzag Iterator………… 120 282. Expression Add operators 121 283. Move zeroes 121 284. Peeking iterator…................ 翻番,·重D 122 285. Inorder Successor in bSt ……122 286. Walls and gates 重着看 122 287. Find the duplicate Number 123 288. Unique Word abbreviation ......................................................................................123 289. Game of life 124 290. Word Pattern 124 291. Word Pattern ll ,125 292. Nim game 125 293. Flip game…… …………………………126 294. Flip game Il 126 295. Find median from data stream a:a:a.:a:a:::::.a::..:::::a.:a::::a::::a::..:::::a:a: 126 296. Best meeting Point..…… ,127 297. Serialize and deserialize binary tree 127 298. Binary Tree Longest Consecutive sequence. .......................................................................................128 299. Bulls and Cows ::.:::::.:::.::::::::.::a:::.:::::..::::·::a ···:::·日.:::::::.::· 128 300. Longest Increasing Subsequence 129 301. Remove Invalid Parentheses ....wwwww 129 302. Smallest Rectangle enclosing Black Pixels 130 303. Range Sum Query-Immutable. 130 304. Range Sum Query 2D-Immutable...... 131 305. Number of islands‖..……………………131 306. Additive number……… 132 307. Range Sum Query-Mutable 133 308. Range Sum Query 2D-Mutable 134 309. Best Time to buy and sell Stock with Cooldown 135 310. Minimum Height Trees 135 311. Sparse matrix multiplication......,..,.,….,.,…,.,,….,,,…,…,…,,136 312. Burst Balloons 137 313. Super Ugly Number.............. 137 314. Binary tree Vertical Order Traversa|…..............,………,138 315. Count of smaller numbers After self w mwwwwwwwwomwwww 139 316. Remove Duplicate Letters 140 317. Shortest Distance from all Buildings 140 318. Maximum Product of Word Lengths ∴141 319. Bulb Switcher . 320. Generalized abbreviation 142 321. Create Maximum number 142 322. Coin Change 143 323. Number of Connected Components in an Undirected graph.,……… 143 324. Wiggle Sort II.. 144 325. Maximum Size Subarray sum equals k. .........................................................................................145 326. Power of three …146 327. Count of Range Sur 146 328. Odd even linked list 146 329. Longest Increasing path in a matrix…........…...….………147 330. Patching Array.........,…… 147 331. Verify Preorder Serialization of a Binary tree 148 【实例截图】
【核心代码】
LeetCode答案整理，是一个风场好的大拿资源大全。如果你想面试，是非常有用的
36. Valid sudoku.…15 37 Sudoku solver 38. Count and say.. 16 39. Combinatⅰ on sun. 16 40. Com bination Sum ll :::.:::·::::..·: 17 41. First Missing Positive 17 42. Trapping rain water...... 43. Multiply Strings…… :.:.:::·::::.::::.::.:::::::::::::::::::a:::::::::::::·:.:.:::::::: 44. Wildcard matchin 着非自自,‖着着自音·,·自重自自,自。自 1重非 19 45. Jump Game I 20 46. Permutations.………………,20 47. Permutations‖l. 48 Rotate image 21 49 Group Anagrams… 21 50.Pow(x,n)..... :.::::::::::.::.:: 21 51 QueenS..... 22 52. N-Queens ll 23 53. Maximum Subarray ............ 54. Spiral Matrix..... ∴24 55. Jump game……, 24 Merge Intervals………,…,…,…,…,,…,…,…,…,…,…,…,…,…,…,,……,………,……25 57 Insert Interval 25 58. Length of Last Word 25 59. Spiral matrix… 2 60. Permutation Sequence........ 26 61. Rotate list 27 62. Unique Paths.. 27 63 Unique Paths Il ...:...a..:::::·:: 27 64 Minimum Path Sum ,,着·,,,看看看 28 65 Valid number… 28 66. Plus one ·看·音 29 67. Add Binary.,,…,…,… 29 68. Text justification 29 69. Sqrt(x)........... ,30 70. Climbing stairs........... 30 71. Simplify path 31 Edit distance 31 73. Set matrⅸ X Zeroes∴.31 74. Search a 2D Matrix 32 75. Sort colors∴ 32 76. Minimum Window Substring 33 Combinations ::.:::::.:::.::::::::.::a:::.:::::..::::·::a ···:::·日.:::::::.::· :··:::·::: 33 78. Subsets 34 79. Word search 34 80. Remove duplicates from Sorted array‖...… ::::::..::::a::a::: 自,着自非着自1面自音非自着D自自自非非 35 81. Search in Rotated Sorted array‖l…..… 1重非 35 82. Remove Duplicates from Sorted List Il 35 83. Remove duplicates from Sorted 84. Largest Rectangle in Histogram.,,…,… 36 85. Maximal rectangle 37 86 Partition list 38 87. Scramble string..................….………………38 68. Merge sorted array..................... 39 9. Gray code 39 90. Subsets‖l 39 91. Decode ways.. 40 92. Reverse linked list ll 40 93.Restoreipaddresses,wwwwwwwwwwwwww.40 94. Binary Tree Inorder Traversal 41 95. Unique Binary search Trees Il......... 41 96. Unique Binary Search Trees 42 97. interleaving String……,…,…,…,…,,…,…,…,,…,…,…,…,…,,,……,…,…………42 98. Validate Binary search tree 42 99. Recover Binary Search Tree ,43 100. Same Tree 1。D·自看着,自, 43 101. Symmetric Tree 重着看 44 102. Binary Tree Level Order Traversal 45 Inary iree2 gag Level order traversal………………………………………………………………… 104. Maximum Depth of Binary Tree 46 105. Construct Binary Tree from Preorder and Inorder traversal 46 106. Construct Binary Tree from Inorder and Postorder traversal ....................... 46 107. Binary Tree Level Order Traversal ll 47 108. Convert Sorted Array to binary search tree. 109. Convert Sorted list to Binary search tree .47 110. Balanced Binary Tree..........48 111. Minimum Depth of Binary tree.…… 112. Path Sum 48 113. Path sun‖ 49 114. Flatten Binary tree to linked List ····.:·日.:::::::.::· ,49 115. Distinct Subsequences 50 116. Populating Next Right Pointers in Each Node 117. Populating next Right Pointers in Each Node 18. Pascals Triangle……, 1重非 51 119. Pascal' s Triangle ll 2 120. Triangle........................... 52 121. Best time to buy and sell stock 52 122. Best Time to buy and sell Stock lL................. 53 123. best Time to buy and sell stock ill 53 124. Binary Tree Maximum Path Sum.................. ·1 53 125. Valid palindrome……… 53 126. Word ladder ll 154 127. Word ladder 55 128. Longest Consecutive Sequence..,…,… ∴156 129. Sum root to leaf numbers 56 130. Surrounded regions……,…,…,…,…,…,…,,…,…,…,…,,…,…………………,………57 131. Palindrome Partitioning .57 132. Palindrome Partitioning ll 158 133. Clone Graph.……… 9 134. Gas station wwwWWW 59 135. Cand 59 136. Single number… 60 137. Single Number|.….…… 60 138. Copy List with Random pointer 重着看 60 139. Word Break 60 140. Word breakⅢ 61 141. Linked List cycle 61 142. Linked List Cycle Il 61 143. Reorder list.……, 62 144. Binary Tree preorder traversal.. 62 145. Binary tree postorder traversal.…….…………,,……,…………,…,……………………………….63 146. LRU Cache 63 147. Insertion sort list……………………,……………………….164 148. Sort list 64 149. Max points on a lir .64 150.EⅤa| uate reverse po| ish notation… 65 151. Reverse Words in a String....,.,,,,,…… 66 152. Maximum Product Subarray…,…,,,…, 66 153. Find Minimum in rotated Sorted array 67 154. Find minimum in rotated sorted array 155. Min Stack ∴67 156. Binary Tree Upside Down 68 157. Read n characters given read4 ..:.:B.:::.:a:.::::::::..:.:..:a::::::::B:.:::.:.::.· …69 158. Read N Characters Given Read4 ll-Call multiple times...............................69 159. Longest Substring with At Most Two Distinct Characters ∴69 160. Intersection of two linked lists 70 161. One edit distance 70 162. Find peak e| ement…… ,70 163. Missing Ranges………,…,…,…,…,,…,…,,…,…,,…,…,,…,,…,………71 164. Maximum Gap…… 71 165. Compare Version Numbers 72 166.「 raction to Recurring decima|......……72 167. Two Sum- nput array is sorted…..………..…,…,…,…,….,…,…,…,…,…,…,…,………,173 168. Excel sheet column title 169. Majority Element……,…,………………………73 170. Two Sum Ill -Data structure design ∴73 171. Excel sheet column number ww....wwww 74 172. Factorial Trailing Zeroes .74 173. Binary Search tree Iterator........ 74 174. Dungeon game.…,…,,… 75 175. Com bine two tables ,,着·,,,看看看 176. Second Highest Salary .76 177. Nth Highest Salary........ ·看·音 …76 178. Rank scores 77 179. Largest Number…………………,…,…,…,…,……,…,…………7 180. Consecutive numbers ……7 181. Employees Earning More Than Their Managers 182. Duplicate emails 着着,日音着量,套看 78 183. Customers Who Never order .79 184. Department Highest salary….....,.,.,.,.,.,.,...,.…,…19 185. Department Top Three Salaries. 80 186. Reverse Words in a string ll ,81 187. Repeated DNA Sequences 81 188. Best time to buy and sell stock iv ···:::·日.:::::::.::· :··:::·::: 81 189. Rotate array… ∴82 190. Reverse bits 82 191. Number of l Bits wwwwwwwwwwwwwwwwwwwwwwwwwwwwwww 82 192. Word Frequency 83 193. Valid Phone numbers 83 194. Transpose file..............……83 195. Tenth line.……,……… 84 196. Delete duplicate emails.... ∴84 197. Rising Temperature.... 85 198. House robber….…………………………………………85 199. Binary tree right Side view 85 200. Number of islands 86 201. Bitwise ANd of Numbers range 87 202. Happy Number.......... 87 203. Remove Linked list elements 87 204. Count primes…87 205. Isomorphic Strings 88 206. Reverse Linked List 88 207. Course schedule… 88 208. Implement Trie(Prefix tree) 89 209. Minimum Size Subarray sum. 89 210. Course schedu|eⅡ 90 211. Add and Search Word-Data structure design a::.::·::.:.·::· 1。D·自看着,:自 91 212. Word Search Il 重着看 91 213. House robber ll 92 214. Shortest palindrome ·看·音 93 215. Kth Largest Element in an Array…… 93 216. Combination sumⅢ 93 217. Contains duplicate ,94 218. The skyline 219. Contains Duplicate Il 95 220. Contains Duplicate Ill 95 221. Maximal Square… ..a:::a:::.:.aa..:a:a:a.:aa:::::.a::.:::::.:a·:a 95 222. Count Complete Tree Nodes 223. Rectangle area 96 asic calculator 96 225. Implement Stack using Queues.....,……… ····.:·日.:::::::.::· 97 226. Invert Binary Tree 97 227. Basic Calculator ll 98 228. Summary ranges……,…,… 99 229. Majority Element|....,,,,……,… 1重非 99 230. Kth Smallest element in a bst 100 231. Power of two……….………………100 232. Implement Queue using Stacks 100 233. Number of digit One 101 234. Palindrome linked list 101 235. Lowest Common Ancestor of a binary search 236. Lowest Common Ancestor of a Binary tree 102 237. Delete node in a Linked list 102 238. Product of Array except self 102 239. Sliding Window Maximum ............ 103 240. Search a 2D Matrix Il 103 241. Different Ways to Add parentheses. ..................................................................................................104 242. Valid Anagram 104 243. Shortest word distance 着:· 105 244. Shortest Word distance ll ……105 245. Shortest Word distance lll 106 246. Strobogrammatic Number 106 247. Strobogrammatic Number Il..... 106 248. Strobogrammatic Number ll...…… 107 249. Group Shifted Strings 107 250. Count Univalue Subtrees 107 251. Flatten2D∨ ector ……………108 252. Meeting Rooms 108 253. Meeting rooms‖ 109 254. Factor Combinations :::".:::.::::::::a::::::::::::::::::::::.:: 109 255. Verify preorder sequence in binary Search Tree .. ..:::..:a::.:::·.::::·a::::a .110 256. Paint house 257. Binary Tree Paths 110 258. Add Digits.....,,….,…,………,111 259. 3Sum Smaller 111 260. Single Number Ill 111 261. Graph Valid Tree......... 112 262. Trips and Users.,...,.,...,,…,,,… 12 263. Ugly Number∴ 113 264. Ugly Number Il..… 113 265 Paint house ll..wwN 114 266. Palindrome permutation 着非自自,‖着着自音·,·自重自自,自。自 1重非 114 267. Palindrome permutation Il 114 268. Missing 269. Alien Dictionary ..................... 15 270. Closest Binary Search Tree value.......... 116 271. Encode and decode strings .117 272. Closest Binary Search Tree value‖…......………117 273. Integer to English Words....... ∴18 274. H-Index 118 275.H-ndeⅹⅢ. 119 276. Paint fence .119 277. Find the celebrity . 119 278. First bad version∴.………120 279. Perfect .120 280. Wiggle Sort.... 120 281. Zigzag Iterator………… 120 282. Expression Add operators 121 283. Move zeroes 121 284. Peeking iterator…................ 翻番,·重D 122 285. Inorder Successor in bSt ……122 286. Walls and gates 重着看 122 287. Find the duplicate Number 123 288. Unique Word abbreviation ......................................................................................123 289. Game of life 124 290. Word Pattern 124 291. Word Pattern ll ,125 292. Nim game 125 293. Flip game…… …………………………126 294. Flip game Il 126 295. Find median from data stream a:a:a.:a:a:::::.a::..:::::a.:a::::a::::a::..:::::a:a: 126 296. Best meeting Point..…… ,127 297. Serialize and deserialize binary tree 127 298. Binary Tree Longest Consecutive sequence. .......................................................................................128 299. Bulls and Cows ::.:::::.:::.::::::::.::a:::.:::::..::::·::a ···:::·日.:::::::.::· 128 300. Longest Increasing Subsequence 129 301. Remove Invalid Parentheses ....wwwww 129 302. Smallest Rectangle enclosing Black Pixels 130 303. Range Sum Query-Immutable. 130 304. Range Sum Query 2D-Immutable...... 131 305. Number of islands‖..……………………131 306. Additive number……… 132 307. Range Sum Query-Mutable 133 308. Range Sum Query 2D-Mutable 134 309. Best Time to buy and sell Stock with Cooldown 135 310. Minimum Height Trees 135 311. Sparse matrix multiplication......,..,.,….,.,…,.,,….,,,…,…,…,,136 312. Burst Balloons 137 313. Super Ugly Number.............. 137 314. Binary tree Vertical Order Traversa|…..............,………,138 315. Count of smaller numbers After self w mwwwwwwwwomwwww 139 316. Remove Duplicate Letters 140 317. Shortest Distance from all Buildings 140 318. Maximum Product of Word Lengths ∴141 319. Bulb Switcher . 320. Generalized abbreviation 142 321. Create Maximum number 142 322. Coin Change 143 323. Number of Connected Components in an Undirected graph.,……… 143 324. Wiggle Sort II.. 144 325. Maximum Size Subarray sum equals k. .........................................................................................145 326. Power of three …146 327. Count of Range Sur 146 328. Odd even linked list 146 329. Longest Increasing path in a matrix…........…...….………147 330. Patching Array.........,…… 147 331. Verify Preorder Serialization of a Binary tree 148 【实例截图】
【核心代码】
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