GitHub - corpsepiges/leetcode: leetcode for every language , sooner or later , I want

001 Two Sum Easy noNote Java Python Ruby JavaScript no 002 Add Two Numbers Medium noNote Java Python Ruby JavaScript no 003 Longest Substring Without Repeating Characters Medium noNote Java Python no no no 004 Median of Two Sorted Arrays Hard noNote no no no no no 005 Longest Palindromic Substring Medium noNote no no no no no 006 ZigZag Conversion Medium noNote Java Python no no no 007 Reverse Integer Easy noNote Java Python Ruby no no 008 String to Integer (atoi) Medium noNote Java no no no no 009 Palindrome Number Easy noNote Java Python Ruby no no 010 Regular Expression Matching Hard noNote Java no no no no 011 Container With Most Water Medium noNote Java no no no no 012 Integer to Roman Medium noNote Java Python no no no 013 Roman to Integer Easy noNote Java Python no no no 014 Longest Common Prefix Easy noNote Java Python no no no 015 3Sum Medium noNote Java Python Ruby JavaScript no 016 3Sum Closest Medium noNote Java no no no no 017 Letter Combinations of a Phone Number Medium noNote Java Python no no no 018 4Sum Medium noNote Java no no no no 019 Remove Nth Node From End of List Medium noNote Java Python Ruby no no 020 Valid Parentheses Easy noNote Java no no no no 021 Merge Two Sorted Lists Easy noNote Java Python Ruby no no 022 Generate Parentheses Medium noNote Java Python no no no 023 Merge k Sorted Lists Hard noNote Java Python Ruby no no 024 Swap Nodes in Pairs Medium noNote Java Python no no no 025 Reverse Nodes in k-Group Hard noNote Java no no no no 026 Remove Duplicates from Sorted Array Easy noNote Java Python no no no 027 Remove Element Easy noNote Java Python no no no 028 Implement strStr() Easy noNote Java no no no no 029 Divide Two Integers Medium noNote Java no no no no 030 Substring with Concatenation of All Words Hard noNote no no no no no 031 Next Permutation Medium noNote Java Python no no no 032 Longest Valid Parentheses Hard noNote Java no no no no 033 Search in Rotated Sorted Array Medium noNote Java no no no no 034 Search for a Range Medium noNote Java Python no no no 035 Search Insert Position Easy noNote Java Python no no no 036 Valid Sudoku Medium noNote Java no no no no 037 Sudoku Solver Hard noNote Java no no no no 038 Count and Say Easy noNote Java no no no no 039 Combination Sum Medium noNote Java Python no no no 040 Combination Sum II Medium noNote Java no no no no 041 First Missing Positive Hard noNote Java Python no no no 042 Trapping Rain Water Hard noNote Java no no no no 043 Multiply Strings Medium noNote Java Python no no no 044 Wildcard Matching Hard noNote no no no no no 045 Jump Game II Hard noNote Java no no no no 046 Permutations Medium noNote Java Python no no no 047 Permutations II Medium noNote Java Python no no no 048 Rotate Image Medium noNote Java Python no no no 049 Group Anagrams Medium noNote Java Python no no no 050 Pow(x, n) Medium noNote Java Python no no no 051 N-Queens Hard noNote Java Python no no no 052 N-Queens II Hard noNote Java Python no no no 053 Maximum Subarray Easy noNote Java Python no no no 054 Spiral Matrix Medium noNote Java Python no no no 055 Jump Game Medium noNote Java Python no JavaScript no 056 Merge Intervals Medium noNote Java no no no no 057 Insert Interval Hard noNote Java Python no no no 058 Length of Last Word Easy noNote Java Python no no no 059 Spiral Matrix II Medium noNote Java Python no no no 060 Permutation Sequence Medium noNote Java Python no no no 061 Rotate List Medium noNote Java Python no no no 062 Unique Paths Medium noNote Java Python no no no 063 Unique Paths II Medium noNote Java Python no no no 064 Minimum Path Sum Medium noNote Java Python no no no 065 Valid Number Hard noNote no no no no no 066 Plus One Easy noNote Java no no no no 067 Add Binary Easy noNote Java Python no no no 068 Text Justification Hard noNote Java Python no no no 069 Sqrt(x) Easy noNote Java Python no no no 070 Climbing Stairs Easy noNote Java Python no no no 071 Simplify Path Medium noNote no no no no no 072 Edit Distance Hard noNote Java Python no no no 073 Set Matrix Zeroes Medium noNote Java Python no no no 074 Search a 2D Matrix Medium noNote Java Python no no no 075 Sort Colors Medium noNote Java Python no no no 076 Minimum Window Substring Hard noNote no no no no no 077 Combinations Medium noNote Java Python no no no 078 Subsets Medium noNote Java Python no no no 079 Word Search Medium noNote Java no no no no 080 Remove Duplicates from Sorted Array II Medium noNote Java Python no no no 081 Search in Rotated Sorted Array II Medium noNote Java no no no no 082 Remove Duplicates from Sorted List II Medium noNote Java Python no no no 083 Remove Duplicates from Sorted List Easy noNote Java Python no no no 084 Largest Rectangle in Histogram Hard noNote no no no no no 085 Maximal Rectangle Hard noNote no no no no no 086 Partition List Medium noNote Java Python no no no 087 Scramble String Hard noNote Java Python no no no 088 Merge Sorted Array Easy noNote Java Python no no no 089 Gray Code Medium noNote Java Python no no no 090 Subsets II Medium noNote Java Python no no no 091 Decode Ways Medium noNote Java Python no no no 092 Reverse Linked List II Medium noNote Java no no no no 093 Restore IP Addresses Medium noNote Java Python no no no 094 Binary Tree Inorder Traversal Medium noNote Java Python Ruby no no 095 Unique Binary Search Trees II Medium noNote Java no no no no 096 Unique Binary Search Trees Medium noNote Java Python no no no 097 Interleaving String Hard noNote Java Python no no no 098 Validate Binary Search Tree Medium noNote Java Python Ruby no no 099 Recover Binary Search Tree Hard noNote no Python no no no 100 Same Tree Easy noNote Java Python Ruby no no 101 Symmetric Tree Easy noNote Java Python Ruby no no 102 Binary Tree Level Order Traversal Medium noNote Java Python no no no 103 Binary Tree Zigzag Level Order Traversal Medium noNote Java Python no no no 104 Maximum Depth of Binary Tree Easy noNote Java Python Ruby no no 105 Construct Binary Tree from Preorder and Inorder Traversal Medium noNote Java Python Ruby no no 106 Construct Binary Tree from Inorder and Postorder Traversal Medium noNote Java Python Ruby no no 107 Binary Tree Level Order Traversal II Easy noNote Java Python no no no 108 Convert Sorted Array to Binary Search Tree Easy noNote Java Python no no no 109 Convert Sorted List to Binary Search Tree Medium noNote Java Python no no no 110 Balanced Binary Tree Easy noNote Java Python Ruby no no 111 Minimum Depth of Binary Tree Easy noNote Java Python Ruby no no 112 Path Sum Easy noNote Java Python Ruby no no 113 Path Sum II Medium noNote Java Python no no no 114 Flatten Binary Tree to Linked List Medium noNote Java Python no no no 115 Distinct Subsequences Hard noNote no no no no no 116 Populating Next Right Pointers in Each Node Medium noNote Java Python no no no 117 Populating Next Right Pointers in Each Node II Medium noNote Java Python no no no 118 Pascal's Triangle Easy noNote Java Python no no no 119 Pascal's Triangle II Easy noNote Java Python no no no 120 Triangle Medium noNote Java Python no no no 121 Best Time to Buy and Sell Stock Easy noNote Java no no no no 122 Best Time to Buy and Sell Stock II Easy noNote Java no no no no 123 Best Time to Buy and Sell Stock III Hard noNote Java no no no no 124 Binary Tree Maximum Path Sum Hard noNote Java no no no no 125 Valid Palindrome Easy noNote Java no no no no 126 Word Ladder II Hard noNote no no no no no 127 Word Ladder Medium noNote Java no no no no 128 Longest Consecutive Sequence Hard noNote Java no no no no 129 Sum Root to Leaf Numbers Medium noNote Java Python no no no 130 Surrounded Regions Medium noNote Java no no no no 131 Palindrome Partitioning Medium noNote Java no no no no 132 Palindrome Partitioning II Hard noNote no no no no no 133 Clone Graph Medium noNote Java Python no no no 134 Gas Station Medium noNote Java Python no no no 135 Candy Hard noNote Java no no no no 136 Single Number Easy noNote Java Python no no no 137 Single Number II Medium noNote Java no no no no 138 Copy List with Random Pointer Medium noNote Java Python no no no 139 Word Break Medium noNote Java no no no no 140 Word Break II Hard noNote Java no no no no 141 Linked List Cycle Easy noNote Java Python no no no 142 Linked List Cycle II Medium noNote Java Python no no no 143 Reorder List Medium noNote Java Python no no no 144 Binary Tree Preorder Traversal Medium noNote Java Python Ruby no no 145 Binary Tree Postorder Traversal Hard noNote Java Python no no no 146 LRU Cache Hard noNote Java Python no no no 147 Insertion Sort List Medium noNote Java no no no no 148 Sort List Medium noNote Java Python no no no 149 Max Points on a Line Hard noNote Java no no no no 150 Evaluate Reverse Polish Notation Medium noNote Java no no no no 151 Reverse Words in a String Medium noNote Java no no no no 152 Maximum Product Subarray Medium noNote Java no no no no 153 Find Minimum in Rotated Sorted Array Medium noNote Java no no no no 154 Find Minimum in Rotated Sorted Array II Hard noNote Java no no no no 155 Min Stack Easy noNote Java no no no no 156 Binary Tree Upside Down Medium noBuy noBuy noBuy noBuy noBuy noBuy 157 Read N Characters Given Read4 Easy noBuy noBuy noBuy noBuy noBuy noBuy 158 Read N Characters Given Read4 II - Call multiple times Hard noBuy noBuy noBuy noBuy noBuy noBuy 159 Longest Substring with At Most Two Distinct Characters Hard noBuy noBuy noBuy noBuy noBuy noBuy 160 Intersection of Two Linked Lists Easy noNote Java Python no no no 161 One Edit Distance Medium noBuy noBuy noBuy noBuy noBuy noBuy 162 Find Peak Element Medium noNote Java no no no no 163 Missing Ranges Medium noBuy noBuy noBuy noBuy noBuy noBuy 164 Maximum Gap Hard noNote Java no no no no 165 Compare Version Numbers Medium noNote Java Python no no no 166 Fraction to Recurring Decimal Medium noNote Java no no no no 167 Two Sum II - Input array is sorted Easy noNote Java no no no no 168 Excel Sheet Column Title Easy noNote Java Python no no no 169 Majority Element Easy noNote Java Python no no no 170 Two Sum III - Data structure design Easy noBuy noBuy noBuy noBuy noBuy noBuy 171 Excel Sheet Column Number Easy noNote Java Python no no no 172 Factorial Trailing Zeroes Easy noNote Java Python no no no 173 Binary Search Tree Iterator Medium noNote Java no no no no 174 Dungeon Game Hard noNote no no no no no 179 Largest Number Medium noNote Java Python no no no 186 Reverse Words in a String II Medium noBuy noBuy noBuy noBuy noBuy noBuy 187 Repeated DNA Sequences Medium noNote Java no no no no 188 Best Time to Buy and Sell Stock IV Hard noNote no no no no no 189 Rotate Array Easy noNote Java Python no no no 190 Reverse Bits Easy noNote Java Python no no no 191 Number of 1 Bits Easy noNote Java Python no no no 198 House Robber Easy noNote Java Python no no no 199 Binary Tree Right Side View Medium noNote Java Python no no no 200 Number of Islands Medium noNote Java Python no no no 201 Bitwise AND of Numbers Range Medium noNote Java no no no no 202 Happy Number Easy noNote Java Python no no no 203 Remove Linked List Elements Easy noNote Java Python no no no 204 Count Primes Easy noNote Java no no no no 205 Isomorphic Strings Easy noNote Java Python no no no 206 Reverse Linked List Easy noNote Java Python no no no 207 Course Schedule Medium noNote no no no no no 208 Implement Trie (Prefix Tree) Medium noNote Java no no no no 209 Minimum Size Subarray Sum Medium noNote no no no no no 210 Course Schedule II Medium noNote no no no no no 211 Add and Search Word - Data structure design Medium noNote no no no no no 212 Word Search II Hard noNote Java no no no no 213 House Robber II Medium noNote Java Python no no no 214 Shortest Palindrome Hard noNote no no no no no 215 Kth Largest Element in an Array Medium noNote Java Python no no no 216 Combination Sum III Medium noNote Java Python no no no 217 Contains Duplicate Easy noNote Java Python no no no 218 The Skyline Problem Hard noNote no no no no no 219 Contains Duplicate II Easy noNote Java Python no no no 220 Contains Duplicate III Medium noNote no no no no no 221 Maximal Square Medium noNote Java no no no no 222 Count Complete Tree Nodes Medium noNote Java Python no no no 223 Rectangle Area Medium noNote Java Python no no no 224 Basic Calculator Hard noNote no no no no no 225 Implement Stack using Queues Easy noNote Java no no no no 226 Invert Binary Tree Easy noNote Java Python Ruby no no 227 Basic Calculator II Medium noNote no no no no no 228 Summary Ranges Medium noNote Java Python no no no 229 Majority Element II Medium noNote Java no no no no 230 Kth Smallest Element in a BST Medium noNote Java Python Ruby no no 231 Power of Two Easy noNote Java Python no no no 232 Implement Queue using Stacks Easy noNote Java no no no no 233 Number of Digit One Hard noNote no no no no no 234 Palindrome Linked List Easy noNote Java no no no no 235 Lowest Common Ancestor of a Binary Search Tree Easy noNote Java Python no no no 236 Lowest Common Ancestor of a Binary Tree Medium noNote Java Python no no no 237 Delete Node in a Linked List Easy noNote Java Python no no no 238 Product of Array Except Self Medium noNote Java Python no no no 239 Sliding Window Maximum Hard noNote Java Python no no no 240 Search a 2D Matrix II Medium noNote Java no no no no 241 Different Ways to Add Parentheses Medium noNote no no no no no 242 Valid Anagram Easy noNote Java Python no no no 243 Shortest Word Distance Easy noBuy noBuy noBuy noBuy noBuy noBuy 244 Shortest Word Distance II Medium noBuy noBuy noBuy noBuy noBuy noBuy 245 Shortest Word Distance III Medium noBuy noBuy noBuy noBuy noBuy noBuy 246 Strobogrammatic Number Easy noBuy noBuy noBuy noBuy noBuy noBuy 247 Strobogrammatic Number II Medium noBuy noBuy noBuy noBuy noBuy noBuy 248 Strobogrammatic Number III Hard noBuy noBuy noBuy noBuy noBuy noBuy 249 Group Shifted Strings Medium noBuy noBuy noBuy noBuy noBuy noBuy 250 Count Univalue Subtrees Medium noBuy noBuy noBuy noBuy noBuy noBuy 251 Flatten 2D Vector Medium noBuy noBuy noBuy noBuy noBuy noBuy 252 Meeting Rooms Easy noBuy noBuy noBuy noBuy noBuy noBuy 253 Meeting Rooms II Medium noBuy noBuy noBuy noBuy noBuy noBuy 254 Factor Combinations Medium noBuy noBuy noBuy noBuy noBuy noBuy 255 Verify Preorder Sequence in Binary Search Tree Medium noBuy noBuy noBuy noBuy noBuy noBuy 256 Paint House Easy noBuy noBuy noBuy noBuy noBuy noBuy 257 Binary Tree Paths Easy noNote Java Python no no no 258 Add Digits Easy noNote Java Python no no no 259 3Sum Smaller Medium noBuy noBuy noBuy noBuy noBuy noBuy 260 Single Number III Medium noNote Java Python no no no 261 Graph Valid Tree Medium noBuy noBuy noBuy noBuy noBuy noBuy 263 Ugly Number Easy noNote Java Python no no no 264 Ugly Number II Medium noNote Java no no no no 265 Paint House II Hard noBuy noBuy noBuy noBuy noBuy noBuy 266 Palindrome Permutation Easy noBuy noBuy noBuy noBuy noBuy noBuy 267 Palindrome Permutation II Medium noBuy noBuy noBuy noBuy noBuy noBuy 268 Missing Number Easy noNote Java Python no no no 269 Alien Dictionary Hard noBuy noBuy noBuy noBuy noBuy noBuy 270 Closest Binary Search Tree Value Easy noBuy noBuy noBuy noBuy noBuy noBuy 271 Encode and Decode Strings Medium noBuy noBuy noBuy noBuy noBuy noBuy 272 Closest Binary Search Tree Value II Hard noBuy noBuy noBuy noBuy noBuy noBuy 273 Integer to English Words Hard noNote Java Python no no no 274 H-Index Medium noNote Java no no no no 275 H-Index II Medium noNote Java no no no no 276 Paint Fence Easy noBuy noBuy noBuy noBuy noBuy noBuy 277 Find the Celebrity Medium noBuy noBuy noBuy noBuy noBuy noBuy 278 First Bad Version Easy noNote Java Python no no no 279 Perfect Squares Medium noNote Java no no no no 280 Wiggle Sort Medium noBuy noBuy noBuy noBuy noBuy noBuy 281 Zigzag Iterator Medium noBuy noBuy noBuy noBuy noBuy noBuy 282 Expression Add Operators Hard noNote no no no no no 283 Move Zeroes Easy noNote Java Python no no no 284 Peeking Iterator Medium noNote Java no no no no 285 Inorder Successor in BST Medium noBuy noBuy noBuy noBuy noBuy noBuy 286 Walls and Gates Medium noBuy noBuy noBuy noBuy noBuy noBuy 287 Find the Duplicate Number Medium noNote Java Python no no no 288 Unique Word Abbreviation Medium noBuy noBuy noBuy noBuy noBuy noBuy 289 Game of Life Medium noNote Java Python no no no 290 Word Pattern Easy noNote Java Python no no no 291 Word Pattern II Hard noBuy noBuy noBuy noBuy noBuy noBuy 292 Nim Game Easy noNote Java Python no no no 293 Flip Game Easy noBuy noBuy noBuy noBuy noBuy noBuy 294 Flip Game II Medium noBuy noBuy noBuy noBuy noBuy noBuy 295 Find Median from Data Stream Hard noNote Java no no no no 296 Best Meeting Point Hard noBuy noBuy noBuy noBuy noBuy noBuy 297 Serialize and Deserialize Binary Tree Hard noNote Java no no no no 298 Binary Tree Longest Consecutive Sequence Medium noBuy noBuy noBuy noBuy noBuy noBuy 299 Bulls and Cows Medium noNote Java Python no no no 300 Longest Increasing Subsequence Medium noNote Java no no no no 301 Remove Invalid Parentheses Hard noNote no no no no no 302 Smallest Rectangle Enclosing Black Pixels Hard noBuy noBuy noBuy noBuy noBuy noBuy 303 Range Sum Query - Immutable Easy noNote Java Python no no no 304 Range Sum Query 2D - Immutable Medium noNote no Python no no no 305 Number of Islands II Hard noBuy noBuy noBuy noBuy noBuy noBuy 306 Additive Number Medium noNote Java Python no no no 307 Range Sum Query - Mutable Medium noNote Java no no no no 308 Range Sum Query 2D - Mutable Hard noBuy noBuy noBuy noBuy noBuy noBuy 309 Best Time to Buy and Sell Stock with Cooldown Medium noNote Java no no no no 310 Minimum Height Trees Medium noNote no no no no no 311 Sparse Matrix Multiplication Medium noBuy noBuy noBuy noBuy noBuy noBuy 312 Burst Balloons Hard noNote no no no no no 313 Super Ugly Number Medium noNote no no no no no 314 Binary Tree Vertical Order Traversal Medium noBuy noBuy noBuy noBuy noBuy noBuy 315 Count of Smaller Numbers After Self Hard noNote Java Python no no no 316 Remove Duplicate Letters Hard noNote Java no no no no 317 Shortest Distance from All Buildings Hard noBuy noBuy noBuy noBuy noBuy noBuy 318 Maximum Product of Word Lengths Medium noNote Java Python no no no 319 Bulb Switcher Medium noNote Java Python no no no 320 Generalized Abbreviation Medium noBuy noBuy noBuy noBuy noBuy noBuy 321 Create Maximum Number Hard noNote no no no no no 322 Coin Change Medium noNote Java no no no no 323 Number of Connected Components in an Undirected Graph Medium noBuy noBuy noBuy noBuy noBuy noBuy 324 Wiggle Sort II Medium noNote no Python no no no 325 Maximum Size Subarray Sum Equals k Medium noBuy noBuy noBuy noBuy noBuy noBuy 326 Power of Three Easy noNote Java Python no no no 327 Count of Range Sum Hard noNote no no no no no 328 Odd Even Linked List Medium noNote Java Python no no no 329 Longest Increasing Path in a Matrix Hard noNote Java Python no no no 330 Patching Array Hard noNote no no no no no 331 Verify Preorder Serialization of a Binary Tree Medium noNote Java Python no no no 332 Reconstruct Itinerary Medium noNote no no no no no 333 Largest BST Subtree Medium noBuy noBuy noBuy noBuy noBuy noBuy 334 Increasing Triplet Subsequence Medium noNote Java Python no no no 335 Self Crossing Hard noNote no no no no no 336 Palindrome Pairs Hard noNote no no no no no 337 House Robber III Medium noNote Java Python no no no 338 Counting Bits Medium noNote Java Python no no no 339 Nested List Weight Sum Easy noBuy noBuy noBuy noBuy noBuy noBuy 340 Longest Substring with At Most K Distinct Characters Hard noBuy noBuy noBuy noBuy noBuy noBuy 341 Flatten Nested List Iterator Medium noNote Java Python no no no 342 Power of Four Easy noNote Java Python no no no 343 Integer Break Medium noNote Java Python no no no 344 Reverse String Easy noNote Java Python no no no 345 Reverse Vowels of a String Easy noNote Java Python no no no 346 Moving Average from Data Stream Easy noBuy noBuy noBuy noBuy noBuy noBuy 347 Top K Frequent Elements Medium noNote Java Python no no no 348 Design Tic-Tac-Toe Medium noBuy noBuy noBuy noBuy noBuy noBuy 349 Intersection of Two Arrays Easy noNote Java no no no no 350 Intersection of Two Arrays II Easy noNote Java no no no no 351 Android Unlock Patterns Medium noBuy noBuy noBuy noBuy noBuy noBuy 352 Data Stream as Disjoint Intervals Hard noNote Java no no no no 353 Design Snake Game Medium noBuy noBuy noBuy noBuy noBuy noBuy 354 Russian Doll Envelopes Hard noNote Java no no no no 355 Design Twitter Medium noNote Java no no no no 356 Line Reflection Medium noBuy noBuy noBuy noBuy noBuy noBuy 357 Count Numbers with Unique Digits Medium noNote Java no no no no 358 Rearrange String k Distance Apart Hard noBuy noBuy noBuy noBuy noBuy noBuy 359 Logger Rate Limiter Easy noBuy noBuy noBuy noBuy noBuy noBuy 360 Sort Transformed Array Medium noBuy noBuy noBuy noBuy noBuy noBuy 361 Bomb Enemy Medium noBuy noBuy noBuy noBuy noBuy noBuy 362 Design Hit Counter Medium noBuy noBuy noBuy noBuy noBuy noBuy 363 Max Sum of Rectangle No Larger Than K Hard noNote Java no no no no 364 Nested List Weight Sum II Medium noBuy noBuy noBuy noBuy noBuy noBuy 365 Water and Jug Problem Medium noNote Java no no no no 366 Find Leaves of Binary Tree Medium noBuy noBuy noBuy noBuy noBuy noBuy 367 Valid Perfect Square Easy noNote Java no no no no 368 Largest Divisible Subset Medium noNote Java no no no no 369 Plus One Linked List Medium noBuy noBuy noBuy noBuy noBuy noBuy 370 Range Addition Medium noBuy noBuy noBuy noBuy noBuy noBuy 371 Sum of Two Integers Easy noNote Java no no no no 372 Super Pow Medium noNote Java no no no no 373 Find K Pairs with Smallest Sums Medium noNote Java no no no no 374 Guess Number Higher or Lower Easy noNote Java no no no no 375 Guess Number Higher or Lower II Medium noNote Java no no no no 376 Wiggle Subsequence Medium noNote Java no no no no 377 Combination Sum IV Medium noNote Java no no no no 378 Kth Smallest Element in a Sorted Matrix Medium noNote Java no no no no 379 Design Phone Directory Medium noBuy noBuy noBuy noBuy noBuy noBuy 380 Insert Delete GetRandom O(1) Medium noNote Java no no no no 381 Insert Delete GetRandom O(1) - Duplicates allowed Hard noNote Java no no no no 382 Linked List Random Node Medium noNote Java no no no no 383 Ransom Note Easy noNote Java no no no no 384 Shuffle an Array Medium noNote Java no no no no 385 Mini Parser Medium noNote Java no no no no 386 Lexicographical Numbers Medium noNote Java no no no no 387 First Unique Character in a String Easy noNote Java no no no no 388 Longest Absolute File Path Medium noNote Java no no no no 389 Find the Difference Easy noNote Java no no no no 390 Elimination Game Medium noNote Java no no no no 391 Perfect Rectangle Hard noNote Java no no no no 392 Is Subsequence Medium noNote Java no no no no 393 UTF-8 Validation Medium noNote Java no no no no 394 Decode String Medium noNote Java no no no no 395 Longest Substring with At Least K Repeating Characters Medium noNote Java no no no no 396 Rotate Function Medium noNote Java no no no no 397 Integer Replacement Medium noNote Java no no no no 398 Random Pick Index Medium noNote Java no no no no 399 Evaluate Division Medium noNote no no no no no 400 Nth Digit Easy noNote Java no no no no 401 Binary Watch Easy noNote Java no no no no 402 Remove K Digits Medium noNote Java no no no no 403 Frog Jump Hard noNote Java no no no no 404 Sum of Left Leaves Easy noNote Java no no no no 405 Convert a Number to Hexadecimal Easy noNote Java no no no no 406 Queue Reconstruction by Height Medium noNote Java no no no no 407 Trapping Rain Water II Hard noNote no no no no no 408 Valid Word Abbreviation Easy noBuy noBuy noBuy noBuy noBuy noBuy 409 Longest Palindrome Easy noNote Java no no no no 410 Split Array Largest Sum Hard noNote no no no no no 411 Minimum Unique Word Abbreviation Hard noBuy noBuy noBuy noBuy noBuy noBuy 412 Fizz Buzz Easy noNote no no no no no 413 Arithmetic Slices Medium noNote no no no no no 414 Third Maximum Number Easy noNote no no no no no 415 Add Strings Easy noNote Java no no no no 416 Partition Equal Subset Sum Medium noNote Java no no no no 417 Pacific Atlantic Water Flow Medium noNote Java no no no no 418 Sentence Screen Fitting Medium noBuy noBuy noBuy noBuy noBuy noBuy 419 Battleships in a Board Medium noNote no no no no no 420 Strong Password Checker Hard noNote no no no no no 421 Maximum XOR of Two Numbers in an Array Medium noNote no no no no no 422 Valid Word Square Easy noBuy noBuy noBuy noBuy noBuy noBuy 423 Reconstruct Original Digits from English Medium noNote no no no no no 424 Longest Repeating Character Replacement Medium noNote no no no no no 425 Word Squares Hard noBuy noBuy noBuy noBuy noBuy noBuy 432 All O`one Data Structure Hard noNote no no no no no 434 Number of Segments in a String Easy noNote no no no no no 435 Non-overlapping Intervals Medium noNote no no no no no 436 Find Right Interval Medium noNote no no no no no 437 Path Sum III Easy noNote no no no no no 438 Find All Anagrams in a String Easy noNote no no no no no 439 Ternary Expression Parser Medium noBuy noBuy noBuy noBuy noBuy noBuy 440 K-th Smallest in Lexicographical Order Hard noNote no no no no no 441 Arranging Coins Easy noNote no no no no no 442 Find All Duplicates in an Array Medium noNote no no no no no 444 Sequence Reconstruction Medium noBuy noBuy noBuy noBuy noBuy noBuy 445 Add Two Numbers II Medium noNote no no no no no 446 Arithmetic Slices II - Subsequence Hard noNote no no no no no 447 Number of Boomerangs Easy noNote no no no no no 448 Find All Numbers Disappeared in an Array Easy noNote no no no no no 449 Serialize and Deserialize BST Medium noNote no no no no no 450 Delete Node in a BST Medium noNote no no no no no 451 Sort Characters By Frequency Medium noNote no no no no no 452 Minimum Number of Arrows to Burst Balloons Medium noNote no no no no no 453 Minimum Moves to Equal Array Elements Easy noNote no no no no no 454 4Sum II Medium noNote no no no no no 455 Assign Cookies Easy noNote no no no no no 456 132 Pattern Medium noNote no no no no no 459 Repeated Substring Pattern Easy noNote no no no no no 460 LFU Cache Hard noNote no no no no no 461 Hamming Distance Easy noNote no no no no no 462 Minimum Moves to Equal Array Elements II Medium noNote no no no no no 463 Island Perimeter Easy noNote no no no no no 464 Can I Win Medium noNote no no no no no 465 Optimal Account Balancing Hard noBuy noBuy noBuy noBuy noBuy noBuy 466 Count The Repetitions Hard noNote no no no no no 467 Unique Substrings in Wraparound String Medium noNote no no no no no 468 Validate IP Address Medium noNote no no no no no 469 Convex Polygon Medium noBuy noBuy noBuy noBuy noBuy noBuy 471 Encode String with Shortest Length Hard noBuy noBuy noBuy noBuy noBuy noBuy 472 Concatenated Words Hard noNote no no no no no 473 Matchsticks to Square Medium noNote no no no no no 474 Ones and Zeroes Medium noNote no no no no no 475 Heaters Easy noNote no no no no no 476 Number Complement Easy noNote no no no no no 477 Total Hamming Distance Medium noNote no no no no no 480 Sliding Window Median Hard noNote no no no no no 481 Magical String Medium noNote no no no no no 482 License Key Formatting Medium noNote no no no no no 483 Smallest Good Base Hard noNote no no no no no 484 Find Permutation Medium noBuy noBuy noBuy noBuy noBuy noBuy 485 Max Consecutive Ones Easy noNote no no no no no 486 Predict the Winner Medium noNote no no no no no 487 Max Consecutive Ones II Medium noBuy noBuy noBuy noBuy noBuy noBuy 488 Zuma Game Hard noNote no no no no no 490 The Maze Medium noBuy noBuy noBuy noBuy noBuy noBuy 491 Increasing Subsequences Medium noNote no no no no no 492 Construct the Rectangle Easy noNote no no no no no 493 Reverse Pairs Hard noNote no no no no no 494 Target Sum Medium noNote no no no no no 495 Teemo Attacking Medium noNote no no no no no 496 Next Greater Element I Easy noNote no no no no no 498 Diagonal Traverse Medium noNote no no no no no 499 The Maze III Hard noBuy noBuy noBuy noBuy noBuy noBuy 500 Keyboard Row Easy noNote no no no no no 501 Find Mode in Binary Search Tree Easy noNote no no no no no 502 IPO Hard noNote no no no no no 503 Next Greater Element II Medium noNote no no no no no 504 Base 7 Easy noNote no no no no no 505 The Maze II Medium noBuy noBuy noBuy noBuy noBuy noBuy 506 Relative Ranks Easy noNote no no no no no 508 Most Frequent Subtree Sum Medium noNote no no no no no 513 Find Bottom Left Tree Value Medium noNote no no no no no 514 Freedom Trail Hard noNote no no no no no 515 Find Largest Value in Each Tree Row Medium noNote no no no no no 516 Longest Palindromic Subsequence Medium noNote no no no no no 517 Super Washing Machines Hard noNote no no no no no 520 Detect Capital Easy noNote no no no no no 523 Continuous Subarray Sum Medium noNote no no no no no 524 Longest Word in Dictionary through Deleting Medium noNote no no no no no 525 Contiguous Array Medium noNote no no no no no 526 Beautiful Arrangement Medium noNote no no no no no 527 Word Abbreviation Hard noBuy noBuy noBuy noBuy noBuy noBuy 529 Minesweeper Medium noNote no no no no no 530 Minimum Absolute Difference in BST Easy noNote no no no no no 531 Lonely Pixel I Medium noBuy noBuy noBuy noBuy noBuy noBuy 532 K-diff Pairs in an Array Easy noNote no no no no no 533 Lonely Pixel II Medium noBuy noBuy noBuy noBuy noBuy noBuy 535 Encode and Decode TinyURL Medium noNote no no no no no 536 Construct Binary Tree from String Medium noBuy noBuy noBuy noBuy noBuy noBuy 538 Convert BST to Greater Tree Medium noNote no no no no no 539 Minimum Time Difference Medium noNote no no no no no 541 Reverse String II Easy noNote no no no no no 542 01 Matrix Medium noNote no no no no no 543 Diameter of Binary Tree Easy noNote no no no no no 544 Output Contest Matches Medium noBuy noBuy noBuy noBuy noBuy noBuy