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bbruceyuan / Algorithms And Oj

Licence: mit
Some OJs' answers writren by Python/JS/C++/Java

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Keep thinking, keep alive

Until 2018-05-28 11:58:16, I have solved 99 / 758 problems while 133 are still locked.

Completion statistic:

  1. JavaScript: 59
  2. Python: 49
  3. C++: 1
  4. Java: 1

Note: 🔒 means you need to buy a book from LeetCode


LeetCode Solution Table

ID Title Difficulty JavaScript Python C++ Java
001 Two Sum Easy JavaScript Python C++ Java
002 Add Two Numbers Medium JavaScript Python To Do To Do
003 Longest Substring Without Repeating Characters Medium To Do Python To Do To Do
004 Median of Two Sorted Arrays Hard JavaScript Python To Do To Do
005 Longest Palindromic Substring Medium To Do Python To Do To Do
006 ZigZag Conversion Medium To Do Python To Do To Do
007 Reverse Integer Easy JavaScript Python To Do To Do
008 String to Integer (atoi) Medium To Do To Do To Do To Do
009 Palindrome Number Easy To Do Python To Do To Do
010 Regular Expression Matching Hard To Do To Do To Do To Do
011 Container With Most Water Medium JavaScript To Do To Do To Do
012 Integer to Roman Medium To Do Python To Do To Do
013 Roman to Integer Easy JavaScript Python To Do To Do
014 Longest Common Prefix Easy JavaScript Python To Do To Do
015 3Sum Medium JavaScript Python To Do To Do
016 3Sum Closest Medium JavaScript To Do To Do To Do
017 Letter Combinations of a Phone Number Medium To Do Python To Do To Do
018 4Sum Medium JavaScript To Do To Do To Do
019 Remove Nth Node From End of List Medium To Do To Do To Do To Do
020 Valid Parentheses Easy JavaScript Python To Do To Do
021 Merge Two Sorted Lists Easy JavaScript To Do To Do To Do
022 Generate Parentheses Medium To Do To Do To Do To Do
023 Merge k Sorted Lists Hard To Do To Do To Do To Do
024 Swap Nodes in Pairs Medium To Do To Do To Do To Do
025 Reverse Nodes in k-Group Hard To Do To Do To Do To Do
026 Remove Duplicates from Sorted Array Easy JavaScript To Do To Do To Do
027 Remove Element Easy JavaScript To Do To Do To Do
028 Implement strStr() Easy JavaScript To Do To Do To Do
029 Divide Two Integers Medium To Do To Do To Do To Do
030 Substring with Concatenation of All Words Hard To Do To Do To Do To Do
031 Next Permutation Medium JavaScript To Do To Do To Do
032 Longest Valid Parentheses Hard To Do To Do To Do To Do
033 Search in Rotated Sorted Array Medium JavaScript To Do To Do To Do
034 Search for a Range Medium JavaScript To Do To Do To Do
035 Search Insert Position Easy JavaScript To Do To Do To Do
036 Valid Sudoku Medium To Do To Do To Do To Do
037 Sudoku Solver Hard To Do To Do To Do To Do
038 Count and Say Easy To Do Python To Do To Do
039 Combination Sum Medium JavaScript To Do To Do To Do
040 Combination Sum II Medium JavaScript To Do To Do To Do
041 First Missing Positive Hard JavaScript To Do To Do To Do
042 Trapping Rain Water Hard To Do To Do To Do To Do
043 Multiply Strings Medium To Do Python To Do To Do
044 Wildcard Matching Hard To Do To Do To Do To Do
045 Jump Game II Hard To Do To Do To Do To Do
046 Permutations Medium To Do To Do To Do To Do
047 Permutations II Medium To Do To Do To Do To Do
048 Rotate Image Medium JavaScript Python To Do To Do
049 Group Anagrams Medium To Do To Do To Do To Do
050 Pow(x, n) Medium JavaScript To Do To Do To Do
051 N-Queens Hard To Do To Do To Do To Do
052 N-Queens II Hard To Do To Do To Do To Do
053 Maximum Subarray Easy JavaScript To Do To Do To Do
054 Spiral Matrix Medium JavaScript To Do To Do To Do
055 Jump Game Medium JavaScript To Do To Do To Do
056 Merge Intervals Medium To Do To Do To Do To Do
057 Insert Interval Hard To Do To Do To Do To Do
058 Length of Last Word Easy To Do Python To Do To Do
059 Spiral Matrix II Medium JavaScript To Do To Do To Do
060 Permutation Sequence Medium To Do To Do To Do To Do
061 Rotate List Medium To Do To Do To Do To Do
062 Unique Paths Medium To Do To Do To Do To Do
063 Unique Paths II Medium To Do To Do To Do To Do
064 Minimum Path Sum Medium To Do To Do To Do To Do
065 Valid Number Hard To Do To Do To Do To Do
066 Plus One Easy JavaScript To Do To Do To Do
067 Add Binary Easy JavaScript To Do To Do To Do
068 Text Justification Hard To Do To Do To Do To Do
069 Sqrt(x) Easy JavaScript To Do To Do To Do
070 Climbing Stairs Easy To Do Python To Do To Do
071 Simplify Path Medium To Do To Do To Do To Do
072 Edit Distance Hard To Do To Do To Do To Do
073 Set Matrix Zeroes Medium To Do To Do To Do To Do
074 Search a 2D Matrix Medium To Do To Do To Do To Do
075 Sort Colors Medium To Do To Do To Do To Do
076 Minimum Window Substring Hard To Do To Do To Do To Do
077 Combinations Medium To Do To Do To Do To Do
078 Subsets Medium To Do To Do To Do To Do
079 Word Search Medium To Do To Do To Do To Do
080 Remove Duplicates from Sorted Array II Medium To Do To Do To Do To Do
081 Search in Rotated Sorted Array II Medium To Do To Do To Do To Do
082 Remove Duplicates from Sorted List II Medium To Do To Do To Do To Do
083 Remove Duplicates from Sorted List Easy JavaScript To Do To Do To Do
084 Largest Rectangle in Histogram Hard JavaScript To Do To Do To Do
085 Maximal Rectangle Hard To Do To Do To Do To Do
086 Partition List Medium To Do To Do To Do To Do
087 Scramble String Hard To Do To Do To Do To Do
088 Merge Sorted Array Easy JavaScript To Do To Do To Do
089 Gray Code Medium To Do To Do To Do To Do
090 Subsets II Medium To Do To Do To Do To Do
091 Decode Ways Medium To Do To Do To Do To Do
092 Reverse Linked List II Medium To Do Python To Do To Do
093 Restore IP Addresses Medium To Do To Do To Do To Do
094 Binary Tree Inorder Traversal Medium To Do To Do To Do To Do
095 Unique Binary Search Trees II Medium To Do To Do To Do To Do
096 Unique Binary Search Trees Medium To Do To Do To Do To Do
097 Interleaving String Hard To Do To Do To Do To Do
098 Validate Binary Search Tree Medium To Do To Do To Do To Do
099 Recover Binary Search Tree Hard To Do To Do To Do To Do
100 Same Tree Easy JavaScript To Do To Do To Do
101 Symmetric Tree Easy JavaScript To Do To Do To Do
102 Binary Tree Level Order Traversal Medium To Do Python To Do To Do
103 Binary Tree Zigzag Level Order Traversal Medium To Do To Do To Do To Do
104 Maximum Depth of Binary Tree Easy To Do Python To Do To Do
105 Construct Binary Tree from Preorder and Inorder Traversal Medium To Do To Do To Do To Do
106 Construct Binary Tree from Inorder and Postorder Traversal Medium To Do To Do To Do To Do
107 Binary Tree Level Order Traversal II Easy To Do Python To Do To Do
108 Convert Sorted Array to Binary Search Tree Easy To Do Python To Do To Do
109 Convert Sorted List to Binary Search Tree Medium To Do To Do To Do To Do
110 Balanced Binary Tree Easy To Do Python To Do To Do
111 Minimum Depth of Binary Tree Easy To Do Python To Do To Do
112 Path Sum Easy To Do Python To Do To Do
113 Path Sum II Medium To Do To Do To Do To Do
114 Flatten Binary Tree to Linked List Medium To Do To Do To Do To Do
115 Distinct Subsequences Hard To Do To Do To Do To Do
116 Populating Next Right Pointers in Each Node Medium To Do To Do To Do To Do
117 Populating Next Right Pointers in Each Node II Medium To Do To Do To Do To Do
118 Pascal's Triangle Easy To Do Python To Do To Do
119 Pascal's Triangle II Easy To Do Python To Do To Do
120 Triangle Medium To Do To Do To Do To Do
121 Best Time to Buy and Sell Stock Easy JavaScript To Do To Do To Do
122 Best Time to Buy and Sell Stock II Easy JavaScript To Do To Do To Do
123 Best Time to Buy and Sell Stock III Hard JavaScript To Do To Do To Do
124 Binary Tree Maximum Path Sum Hard To Do To Do To Do To Do
125 Valid Palindrome Easy To Do Python To Do To Do
126 Word Ladder II Hard To Do To Do To Do To Do
127 Word Ladder Medium To Do To Do To Do To Do
128 Longest Consecutive Sequence Hard To Do To Do To Do To Do
129 Sum Root to Leaf Numbers Medium To Do To Do To Do To Do
130 Surrounded Regions Medium To Do To Do To Do To Do
131 Palindrome Partitioning Medium To Do To Do To Do To Do
132 Palindrome Partitioning II Hard To Do To Do To Do To Do
133 Clone Graph Medium To Do To Do To Do To Do
134 Gas Station Medium To Do To Do To Do To Do
135 Candy Hard To Do To Do To Do To Do
136 Single Number Easy JavaScript To Do To Do To Do
137 Single Number II Medium JavaScript To Do To Do To Do
138 Copy List with Random Pointer Medium To Do To Do To Do To Do
139 Word Break Medium To Do To Do To Do To Do
140 Word Break II Hard To Do To Do To Do To Do
141 Linked List Cycle Easy To Do Python To Do To Do
142 Linked List Cycle II Medium To Do To Do To Do To Do
143 Reorder List Medium To Do To Do To Do To Do
144 Binary Tree Preorder Traversal Medium To Do To Do To Do To Do
145 Binary Tree Postorder Traversal Hard To Do To Do To Do To Do
146 LRU Cache Hard To Do To Do To Do To Do
147 Insertion Sort List Medium To Do To Do To Do To Do
148 Sort List Medium To Do To Do To Do To Do
149 Max Points on a Line Hard To Do To Do To Do To Do
150 Evaluate Reverse Polish Notation Medium To Do To Do To Do To Do
151 Reverse Words in a String Medium To Do To Do To Do To Do
152 Maximum Product Subarray Medium To Do To Do To Do To Do
153 Find Minimum in Rotated Sorted Array Medium To Do To Do To Do To Do
154 Find Minimum in Rotated Sorted Array II Hard To Do To Do To Do To Do
155 Min Stack Easy To Do Python To Do To Do
156 Binary Tree Upside Down 🔒 Medium To Do To Do To Do To Do
157 Read N Characters Given Read4 🔒 Easy To Do To Do To Do To Do
158 Read N Characters Given Read4 II - Call multiple times 🔒 Hard To Do To Do To Do To Do
159 Longest Substring with At Most Two Distinct Characters 🔒 Hard To Do To Do To Do To Do
160 Intersection of Two Linked Lists Easy To Do Python To Do To Do
161 One Edit Distance 🔒 Medium To Do To Do To Do To Do
162 Find Peak Element Medium To Do To Do To Do To Do
163 Missing Ranges 🔒 Medium To Do To Do To Do To Do
164 Maximum Gap Hard To Do To Do To Do To Do
165 Compare Version Numbers Medium To Do To Do To Do To Do
166 Fraction to Recurring Decimal Medium To Do To Do To Do To Do
167 Two Sum II - Input array is sorted Easy JavaScript To Do To Do To Do
168 Excel Sheet Column Title Easy To Do Python To Do To Do
169 Majority Element Easy JavaScript To Do To Do To Do
170 Two Sum III - Data structure design 🔒 Easy To Do To Do To Do To Do
171 Excel Sheet Column Number Easy To Do Python To Do To Do
172 Factorial Trailing Zeroes Easy To Do Python To Do To Do
173 Binary Search Tree Iterator Medium To Do To Do To Do To Do
174 Dungeon Game Hard To Do To Do To Do To Do
179 Largest Number Medium To Do To Do To Do To Do
186 Reverse Words in a String II 🔒 Medium To Do To Do To Do To Do
187 Repeated DNA Sequences Medium To Do To Do To Do To Do
188 Best Time to Buy and Sell Stock IV Hard To Do To Do To Do To Do
189 Rotate Array Easy JavaScript To Do To Do To Do
190 Reverse Bits Easy To Do To Do To Do To Do
191 Number of 1 Bits Easy To Do To Do To Do To Do
198 House Robber Easy To Do To Do To Do To Do
199 Binary Tree Right Side View Medium To Do To Do To Do To Do
200 Number of Islands Medium To Do To Do To Do To Do
201 Bitwise AND of Numbers Range Medium To Do To Do To Do To Do
202 Happy Number Easy To Do To Do To Do To Do
203 Remove Linked List Elements Easy To Do To Do To Do To Do
204 Count Primes Easy To Do Python To Do To Do
205 Isomorphic Strings Easy To Do Python To Do To Do
206 Reverse Linked List Easy To Do Python To Do To Do
207 Course Schedule Medium To Do To Do To Do To Do
208 Implement Trie (Prefix Tree) Medium To Do To Do To Do To Do
209 Minimum Size Subarray Sum Medium To Do To Do To Do To Do
210 Course Schedule II Medium To Do To Do To Do To Do
211 Add and Search Word - Data structure design Medium To Do To Do To Do To Do
212 Word Search II Hard To Do To Do To Do To Do
213 House Robber II Medium To Do To Do To Do To Do
214 Shortest Palindrome Hard To Do To Do To Do To Do
215 Kth Largest Element in an Array Medium JavaScript To Do To Do To Do
216 Combination Sum III Medium To Do To Do To Do To Do
217 Contains Duplicate Easy JavaScript To Do To Do To Do
218 The Skyline Problem Hard To Do To Do To Do To Do
219 Contains Duplicate II Easy JavaScript To Do To Do To Do
220 Contains Duplicate III Medium JavaScript To Do To Do To Do
221 Maximal Square Medium To Do Python To Do To Do
222 Count Complete Tree Nodes Medium To Do To Do To Do To Do
223 Rectangle Area Medium To Do To Do To Do To Do
224 Basic Calculator Hard To Do To Do To Do To Do
225 Implement Stack using Queues Easy To Do To Do To Do To Do
226 Invert Binary Tree Easy To Do Python To Do To Do
227 Basic Calculator II Medium To Do To Do To Do To Do
228 Summary Ranges Medium To Do To Do To Do To Do
229 Majority Element II Medium To Do To Do To Do To Do
230 Kth Smallest Element in a BST Medium To Do To Do To Do To Do
231 Power of Two Easy To Do To Do To Do To Do
232 Implement Queue using Stacks Easy To Do To Do To Do To Do
233 Number of Digit One Hard To Do To Do To Do To Do
234 Palindrome Linked List Easy To Do Python To Do To Do
235 Lowest Common Ancestor of a Binary Search Tree Easy To Do To Do To Do To Do
236 Lowest Common Ancestor of a Binary Tree Medium To Do To Do To Do To Do
237 Delete Node in a Linked List Easy To Do To Do To Do To Do
238 Product of Array Except Self Medium To Do To Do To Do To Do
239 Sliding Window Maximum Hard To Do To Do To Do To Do
240 Search a 2D Matrix II Medium To Do To Do To Do To Do
241 Different Ways to Add Parentheses Medium To Do To Do To Do To Do
242 Valid Anagram Easy To Do To Do To Do To Do
243 Shortest Word Distance 🔒 Easy To Do To Do To Do To Do
244 Shortest Word Distance II 🔒 Medium To Do To Do To Do To Do
245 Shortest Word Distance III 🔒 Medium To Do To Do To Do To Do
246 Strobogrammatic Number 🔒 Easy To Do To Do To Do To Do
247 Strobogrammatic Number II 🔒 Medium To Do To Do To Do To Do
248 Strobogrammatic Number III 🔒 Hard To Do To Do To Do To Do
249 Group Shifted Strings 🔒 Medium To Do To Do To Do To Do
250 Count Univalue Subtrees 🔒 Medium To Do To Do To Do To Do
251 Flatten 2D Vector 🔒 Medium To Do To Do To Do To Do
252 Meeting Rooms 🔒 Easy To Do To Do To Do To Do
253 Meeting Rooms II 🔒 Medium To Do To Do To Do To Do
254 Factor Combinations 🔒 Medium To Do To Do To Do To Do
255 Verify Preorder Sequence in Binary Search Tree 🔒 Medium To Do To Do To Do To Do
256 Paint House 🔒 Easy To Do To Do To Do To Do
257 Binary Tree Paths Easy To Do To Do To Do To Do
258 Add Digits Easy To Do To Do To Do To Do
259 3Sum Smaller 🔒 Medium To Do To Do To Do To Do
260 Single Number III Medium To Do To Do To Do To Do
261 Graph Valid Tree 🔒 Medium To Do To Do To Do To Do
263 Ugly Number Easy To Do To Do To Do To Do
264 Ugly Number II Medium To Do To Do To Do To Do
265 Paint House II 🔒 Hard To Do To Do To Do To Do
266 Palindrome Permutation 🔒 Easy To Do To Do To Do To Do
267 Palindrome Permutation II 🔒 Medium To Do To Do To Do To Do
268 Missing Number Easy JavaScript To Do To Do To Do
269 Alien Dictionary 🔒 Hard To Do To Do To Do To Do
270 Closest Binary Search Tree Value 🔒 Easy To Do To Do To Do To Do
271 Encode and Decode Strings 🔒 Medium To Do To Do To Do To Do
272 Closest Binary Search Tree Value II 🔒 Hard To Do To Do To Do To Do
273 Integer to English Words Hard To Do To Do To Do To Do
274 H-Index Medium To Do To Do To Do To Do
275 H-Index II Medium To Do To Do To Do To Do
276 Paint Fence 🔒 Easy To Do To Do To Do To Do
277 Find the Celebrity 🔒 Medium To Do To Do To Do To Do
278 First Bad Version Easy JavaScript To Do To Do To Do
279 Perfect Squares Medium To Do To Do To Do To Do
280 Wiggle Sort 🔒 Medium To Do To Do To Do To Do
281 Zigzag Iterator 🔒 Medium To Do To Do To Do To Do
282 Expression Add Operators Hard To Do To Do To Do To Do
283 Move Zeroes Easy JavaScript To Do To Do To Do
284 Peeking Iterator Medium To Do To Do To Do To Do
285 Inorder Successor in BST 🔒 Medium To Do To Do To Do To Do
286 Walls and Gates 🔒 Medium To Do To Do To Do To Do
287 Find the Duplicate Number Medium JavaScript To Do To Do To Do
288 Unique Word Abbreviation 🔒 Medium To Do To Do To Do To Do
289 Game of Life Medium To Do To Do To Do To Do
290 Word Pattern Easy To Do To Do To Do To Do
291 Word Pattern II 🔒 Hard To Do To Do To Do To Do
292 Nim Game Easy To Do To Do To Do To Do
293 Flip Game 🔒 Easy To Do To Do To Do To Do
294 Flip Game II 🔒 Medium To Do To Do To Do To Do
295 Find Median from Data Stream Hard To Do To Do To Do To Do
296 Best Meeting Point 🔒 Hard To Do To Do To Do To Do
297 Serialize and Deserialize Binary Tree Hard To Do To Do To Do To Do
298 Binary Tree Longest Consecutive Sequence 🔒 Medium To Do To Do To Do To Do
299 Bulls and Cows Medium To Do To Do To Do To Do
300 Longest Increasing Subsequence Medium To Do To Do To Do To Do
301 Remove Invalid Parentheses Hard To Do To Do To Do To Do
302 Smallest Rectangle Enclosing Black Pixels 🔒 Hard To Do To Do To Do To Do
303 Range Sum Query - Immutable Easy To Do To Do To Do To Do
304 Range Sum Query 2D - Immutable Medium To Do To Do To Do To Do
305 Number of Islands II 🔒 Hard To Do To Do To Do To Do
306 Additive Number Medium To Do To Do To Do To Do
307 Range Sum Query - Mutable Medium To Do To Do To Do To Do
308 Range Sum Query 2D - Mutable 🔒 Hard To Do To Do To Do To Do
309 Best Time to Buy and Sell Stock with Cooldown Medium To Do To Do To Do To Do
310 Minimum Height Trees Medium To Do To Do To Do To Do
311 Sparse Matrix Multiplication 🔒 Medium To Do To Do To Do To Do
312 Burst Balloons Hard To Do To Do To Do To Do
313 Super Ugly Number Medium To Do To Do To Do To Do
314 Binary Tree Vertical Order Traversal 🔒 Medium To Do To Do To Do To Do
315 Count of Smaller Numbers After Self Hard To Do To Do To Do To Do
316 Remove Duplicate Letters Hard To Do To Do To Do To Do
317 Shortest Distance from All Buildings 🔒 Hard To Do To Do To Do To Do
318 Maximum Product of Word Lengths Medium To Do To Do To Do To Do
319 Bulb Switcher Medium To Do To Do To Do To Do
320 Generalized Abbreviation 🔒 Medium To Do To Do To Do To Do
321 Create Maximum Number Hard To Do To Do To Do To Do
322 Coin Change Medium To Do To Do To Do To Do
323 Number of Connected Components in an Undirected Graph 🔒 Medium To Do To Do To Do To Do
324 Wiggle Sort II Medium To Do To Do To Do To Do
325 Maximum Size Subarray Sum Equals k 🔒 Medium To Do To Do To Do To Do
326 Power of Three Easy To Do To Do To Do To Do
327 Count of Range Sum Hard To Do To Do To Do To Do
328 Odd Even Linked List Medium To Do To Do To Do To Do
329 Longest Increasing Path in a Matrix Hard To Do To Do To Do To Do
330 Patching Array Hard To Do To Do To Do To Do
331 Verify Preorder Serialization of a Binary Tree Medium To Do To Do To Do To Do
332 Reconstruct Itinerary Medium To Do To Do To Do To Do
333 Largest BST Subtree 🔒 Medium To Do To Do To Do To Do
334 Increasing Triplet Subsequence Medium To Do To Do To Do To Do
335 Self Crossing Hard To Do To Do To Do To Do
336 Palindrome Pairs Hard To Do To Do To Do To Do
337 House Robber III Medium To Do To Do To Do To Do
338 Counting Bits Medium To Do To Do To Do To Do
339 Nested List Weight Sum 🔒 Easy To Do To Do To Do To Do
340 Longest Substring with At Most K Distinct Characters 🔒 Hard To Do To Do To Do To Do
341 Flatten Nested List Iterator Medium To Do To Do To Do To Do
342 Power of Four Easy To Do To Do To Do To Do
343 Integer Break Medium To Do To Do To Do To Do
344 Reverse String Easy To Do To Do To Do To Do
345 Reverse Vowels of a String Easy To Do To Do To Do To Do
346 Moving Average from Data Stream 🔒 Easy To Do To Do To Do To Do
347 Top K Frequent Elements Medium To Do To Do To Do To Do
348 Design Tic-Tac-Toe 🔒 Medium To Do To Do To Do To Do
349 Intersection of Two Arrays Easy JavaScript To Do To Do To Do
350 Intersection of Two Arrays II Easy JavaScript To Do To Do To Do
351 Android Unlock Patterns 🔒 Medium To Do To Do To Do To Do
352 Data Stream as Disjoint Intervals Hard To Do To Do To Do To Do
353 Design Snake Game 🔒 Medium To Do To Do To Do To Do
354 Russian Doll Envelopes Hard To Do To Do To Do To Do
355 Design Twitter Medium To Do To Do To Do To Do
356 Line Reflection 🔒 Medium To Do To Do To Do To Do
357 Count Numbers with Unique Digits Medium To Do To Do To Do To Do
358 Rearrange String k Distance Apart 🔒 Hard To Do To Do To Do To Do
359 Logger Rate Limiter 🔒 Easy To Do To Do To Do To Do
360 Sort Transformed Array 🔒 Medium To Do To Do To Do To Do
361 Bomb Enemy 🔒 Medium To Do To Do To Do To Do
362 Design Hit Counter 🔒 Medium To Do To Do To Do To Do
363 Max Sum of Rectangle No Larger Than K Hard To Do To Do To Do To Do
364 Nested List Weight Sum II 🔒 Medium To Do To Do To Do To Do
365 Water and Jug Problem Medium To Do To Do To Do To Do
366 Find Leaves of Binary Tree 🔒 Medium To Do To Do To Do To Do
367 Valid Perfect Square Easy JavaScript To Do To Do To Do
368 Largest Divisible Subset Medium To Do To Do To Do To Do
369 Plus One Linked List 🔒 Medium To Do To Do To Do To Do
370 Range Addition 🔒 Medium To Do To Do To Do To Do
371 Sum of Two Integers Easy To Do To Do To Do To Do
372 Super Pow Medium To Do To Do To Do To Do
373 Find K Pairs with Smallest Sums Medium To Do To Do To Do To Do
374 Guess Number Higher or Lower Easy To Do Python To Do To Do
375 Guess Number Higher or Lower II Medium To Do To Do To Do To Do
376 Wiggle Subsequence Medium To Do To Do To Do To Do
377 Combination Sum IV Medium To Do To Do To Do To Do
378 Kth Smallest Element in a Sorted Matrix Medium To Do To Do To Do To Do
379 Design Phone Directory 🔒 Medium To Do To Do To Do To Do
380 Insert Delete GetRandom O(1) Medium To Do To Do To Do To Do
381 Insert Delete GetRandom O(1) - Duplicates allowed Hard To Do To Do To Do To Do
382 Linked List Random Node Medium To Do To Do To Do To Do
383 Ransom Note Easy To Do To Do To Do To Do
384 Shuffle an Array Medium To Do To Do To Do To Do
385 Mini Parser Medium To Do To Do To Do To Do
386 Lexicographical Numbers Medium To Do To Do To Do To Do
387 First Unique Character in a String Easy To Do To Do To Do To Do
388 Longest Absolute File Path Medium To Do To Do To Do To Do
389 Find the Difference Easy To Do To Do To Do To Do
390 Elimination Game Medium To Do To Do To Do To Do
391 Perfect Rectangle Hard To Do To Do To Do To Do
392 Is Subsequence Medium To Do To Do To Do To Do
393 UTF-8 Validation Medium To Do To Do To Do To Do
394 Decode String Medium To Do To Do To Do To Do
395 Longest Substring with At Least K Repeating Characters Medium To Do To Do To Do To Do
396 Rotate Function Medium To Do To Do To Do To Do
397 Integer Replacement Medium To Do To Do To Do To Do
398 Random Pick Index Medium To Do To Do To Do To Do
399 Evaluate Division Medium To Do To Do To Do To Do
400 Nth Digit Easy To Do To Do To Do To Do
401 Binary Watch Easy To Do To Do To Do To Do
402 Remove K Digits Medium To Do To Do To Do To Do
403 Frog Jump Hard To Do To Do To Do To Do
404 Sum of Left Leaves Easy To Do To Do To Do To Do
405 Convert a Number to Hexadecimal Easy To Do To Do To Do To Do
406 Queue Reconstruction by Height Medium To Do To Do To Do To Do
407 Trapping Rain Water II Hard To Do To Do To Do To Do
408 Valid Word Abbreviation 🔒 Easy To Do To Do To Do To Do
409 Longest Palindrome Easy To Do To Do To Do To Do
410 Split Array Largest Sum Hard To Do To Do To Do To Do
411 Minimum Unique Word Abbreviation 🔒 Hard To Do To Do To Do To Do
412 Fizz Buzz Easy To Do To Do To Do To Do
413 Arithmetic Slices Medium To Do To Do To Do To Do
414 Third Maximum Number Easy JavaScript To Do To Do To Do
415 Add Strings Easy To Do Python To Do To Do
416 Partition Equal Subset Sum Medium To Do To Do To Do To Do
417 Pacific Atlantic Water Flow Medium To Do To Do To Do To Do
418 Sentence Screen Fitting 🔒 Medium To Do To Do To Do To Do
419 Battleships in a Board Medium To Do To Do To Do To Do
420 Strong Password Checker Hard To Do To Do To Do To Do
421 Maximum XOR of Two Numbers in an Array Medium To Do To Do To Do To Do
422 Valid Word Square 🔒 Easy To Do To Do To Do To Do
423 Reconstruct Original Digits from English Medium To Do To Do To Do To Do
424 Longest Repeating Character Replacement Medium To Do To Do To Do To Do
425 Word Squares 🔒 Hard To Do To Do To Do To Do
432 All O`one Data Structure Hard To Do To Do To Do To Do
434 Number of Segments in a String Easy To Do To Do To Do To Do
435 Non-overlapping Intervals Medium To Do To Do To Do To Do
436 Find Right Interval Medium To Do To Do To Do To Do
437 Path Sum III Easy To Do To Do To Do To Do
438 Find All Anagrams in a String Easy To Do To Do To Do To Do
439 Ternary Expression Parser 🔒 Medium To Do To Do To Do To Do
440 K-th Smallest in Lexicographical Order Hard To Do To Do To Do To Do
441 Arranging Coins Easy To Do To Do To Do To Do
442 Find All Duplicates in an Array Medium JavaScript To Do To Do To Do
443 String Compression Easy To Do To Do To Do To Do
444 Sequence Reconstruction 🔒 Medium To Do To Do To Do To Do
445 Add Two Numbers II Medium To Do To Do To Do To Do
446 Arithmetic Slices II - Subsequence Hard To Do To Do To Do To Do
447 Number of Boomerangs Easy To Do To Do To Do To Do
448 Find All Numbers Disappeared in an Array Easy JavaScript To Do To Do To Do
449 Serialize and Deserialize BST Medium To Do To Do To Do To Do
450 Delete Node in a BST Medium To Do To Do To Do To Do
451 Sort Characters By Frequency Medium To Do To Do To Do To Do
452 Minimum Number of Arrows to Burst Balloons Medium To Do To Do To Do To Do
453 Minimum Moves to Equal Array Elements Easy To Do Python To Do To Do
454 4Sum II Medium To Do To Do To Do To Do
455 Assign Cookies Easy To Do To Do To Do To Do
456 132 Pattern Medium To Do To Do To Do To Do
459 Repeated Substring Pattern Easy To Do To Do To Do To Do
460 LFU Cache Hard To Do To Do To Do To Do
461 Hamming Distance Easy To Do To Do To Do To Do
462 Minimum Moves to Equal Array Elements II Medium To Do Python To Do To Do
463 Island Perimeter Easy To Do To Do To Do To Do
464 Can I Win Medium To Do To Do To Do To Do
465 Optimal Account Balancing 🔒 Hard To Do To Do To Do To Do
466 Count The Repetitions Hard To Do To Do To Do To Do
467 Unique Substrings in Wraparound String Medium To Do To Do To Do To Do
468 Validate IP Address Medium To Do To Do To Do To Do
469 Convex Polygon 🔒 Medium To Do To Do To Do To Do
471 Encode String with Shortest Length 🔒 Hard To Do To Do To Do To Do
472 Concatenated Words Hard To Do To Do To Do To Do
473 Matchsticks to Square Medium To Do To Do To Do To Do
474 Ones and Zeroes Medium To Do To Do To Do To Do
475 Heaters Easy To Do To Do To Do To Do
476 Number Complement Easy To Do To Do To Do To Do
477 Total Hamming Distance Medium To Do To Do To Do To Do
479 Largest Palindrome Product Easy To Do To Do To Do To Do
480 Sliding Window Median Hard To Do To Do To Do To Do
481 Magical String Medium To Do To Do To Do To Do
482 License Key Formatting Easy To Do To Do To Do To Do
483 Smallest Good Base Hard To Do To Do To Do To Do
484 Find Permutation 🔒 Medium To Do To Do To Do To Do
485 Max Consecutive Ones Easy JavaScript To Do To Do To Do
486 Predict the Winner Medium To Do To Do To Do To Do
487 Max Consecutive Ones II 🔒 Medium To Do To Do To Do To Do
488 Zuma Game Hard To Do To Do To Do To Do
490 The Maze 🔒 Medium To Do To Do To Do To Do
491 Increasing Subsequences Medium To Do To Do To Do To Do
492 Construct the Rectangle Easy To Do To Do To Do To Do
493 Reverse Pairs Hard To Do To Do To Do To Do
494 Target Sum Medium To Do To Do To Do To Do
495 Teemo Attacking Medium To Do To Do To Do To Do
496 Next Greater Element I Easy To Do To Do To Do To Do
498 Diagonal Traverse Medium To Do To Do To Do To Do
499 The Maze III 🔒 Hard To Do To Do To Do To Do
500 Keyboard Row Easy To Do To Do To Do To Do
501 Find Mode in Binary Search Tree Easy To Do To Do To Do To Do
502 IPO Hard To Do To Do To Do To Do
503 Next Greater Element II Medium To Do To Do To Do To Do
504 Base 7 Easy To Do To Do To Do To Do
505 The Maze II 🔒 Medium To Do To Do To Do To Do
506 Relative Ranks Easy To Do To Do To Do To Do
507 Perfect Number Easy To Do To Do To Do To Do
508 Most Frequent Subtree Sum Medium To Do To Do To Do To Do
513 Find Bottom Left Tree Value Medium To Do To Do To Do To Do
514 Freedom Trail Hard To Do To Do To Do To Do
515 Find Largest Value in Each Tree Row Medium To Do To Do To Do To Do
516 Longest Palindromic Subsequence Medium To Do To Do To Do To Do
517 Super Washing Machines Hard To Do To Do To Do To Do
520 Detect Capital Easy To Do To Do To Do To Do
521 Longest Uncommon Subsequence I Easy To Do To Do To Do To Do
522 Longest Uncommon Subsequence II Medium To Do To Do To Do To Do
523 Continuous Subarray Sum Medium To Do To Do To Do To Do
524 Longest Word in Dictionary through Deleting Medium To Do To Do To Do To Do
525 Contiguous Array Medium To Do To Do To Do To Do
526 Beautiful Arrangement Medium To Do To Do To Do To Do
527 Word Abbreviation 🔒 Hard To Do To Do To Do To Do
529 Minesweeper Medium To Do To Do To Do To Do
530 Minimum Absolute Difference in BST Easy To Do To Do To Do To Do
531 Lonely Pixel I 🔒 Medium To Do To Do To Do To Do
532 K-diff Pairs in an Array Easy To Do To Do To Do To Do
533 Lonely Pixel II 🔒 Medium To Do To Do To Do To Do
535 Encode and Decode TinyURL Medium To Do To Do To Do To Do
536 Construct Binary Tree from String 🔒 Medium To Do To Do To Do To Do
537 Complex Number Multiplication Medium To Do To Do To Do To Do
538 Convert BST to Greater Tree Easy To Do To Do To Do To Do
539 Minimum Time Difference Medium To Do To Do To Do To Do
540 Single Element in a Sorted Array Medium To Do To Do To Do To Do
541 Reverse String II Easy To Do To Do To Do To Do
542 01 Matrix Medium To Do To Do To Do To Do
543 Diameter of Binary Tree Easy To Do To Do To Do To Do
544 Output Contest Matches 🔒 Medium To Do To Do To Do To Do
545 Boundary of Binary Tree 🔒 Medium To Do To Do To Do To Do
546 Remove Boxes Hard To Do To Do To Do To Do
547 Friend Circles Medium To Do To Do To Do To Do
548 Split Array with Equal Sum 🔒 Medium To Do To Do To Do To Do
549 Binary Tree Longest Consecutive Sequence II 🔒 Medium To Do To Do To Do To Do
551 Student Attendance Record I Easy To Do To Do To Do To Do
552 Student Attendance Record II Hard To Do To Do To Do To Do
553 Optimal Division Medium To Do To Do To Do To Do
554 Brick Wall Medium To Do To Do To Do To Do
555 Split Concatenated Strings 🔒 Medium To Do To Do To Do To Do
556 Next Greater Element III Medium To Do To Do To Do To Do
557 Reverse Words in a String III Easy To Do To Do To Do To Do
560 Subarray Sum Equals K Medium To Do To Do To Do To Do
561 Array Partition I Easy To Do To Do To Do To Do
562 Longest Line of Consecutive One in Matrix 🔒 Medium To Do To Do To Do To Do
563 Binary Tree Tilt Easy To Do To Do To Do To Do
564 Find the Closest Palindrome Hard To Do To Do To Do To Do
565 Array Nesting Medium To Do To Do To Do To Do
566 Reshape the Matrix Easy To Do To Do To Do To Do
567 Permutation in String Medium To Do To Do To Do To Do
568 Maximum Vacation Days 🔒 Hard To Do To Do To Do To Do
572 Subtree of Another Tree Easy To Do To Do To Do To Do
573 Squirrel Simulation 🔒 Medium To Do To Do To Do To Do
575 Distribute Candies Easy To Do To Do To Do To Do
576 Out of Boundary Paths Medium To Do To Do To Do To Do
581 Shortest Unsorted Continuous Subarray Easy To Do To Do To Do To Do
582 Kill Process 🔒 Medium To Do To Do To Do To Do
583 Delete Operation for Two Strings Medium To Do To Do To Do To Do
587 Erect the Fence Hard To Do To Do To Do To Do
588 Design In-Memory File System 🔒 Hard To Do To Do To Do To Do
591 Tag Validator Hard To Do To Do To Do To Do
592 Fraction Addition and Subtraction Medium To Do To Do To Do To Do
593 Valid Square Medium To Do To Do To Do To Do
594 Longest Harmonious Subsequence Easy To Do To Do To Do To Do
598 Range Addition II Easy To Do To Do To Do To Do
599 Minimum Index Sum of Two Lists Easy To Do To Do To Do To Do
600 Non-negative Integers without Consecutive Ones Hard To Do To Do To Do To Do
604 Design Compressed String Iterator 🔒 Easy To Do To Do To Do To Do
605 Can Place Flowers Easy To Do To Do To Do To Do
606 Construct String from Binary Tree Easy To Do To Do To Do To Do
609 Find Duplicate File in System Medium To Do Python To Do To Do
611 Valid Triangle Number Medium To Do To Do To Do To Do
616 Add Bold Tag in String 🔒 Medium To Do To Do To Do To Do
617 Merge Two Binary Trees Easy To Do To Do To Do To Do
621 Task Scheduler Medium To Do To Do To Do To Do
623 Add One Row to Tree Medium To Do To Do To Do To Do
624 Maximum Distance in Arrays 🔒 Easy To Do To Do To Do To Do
625 Minimum Factorization 🔒 Medium To Do To Do To Do To Do
628 Maximum Product of Three Numbers Easy To Do To Do To Do To Do
629 K Inverse Pairs Array Hard To Do To Do To Do To Do
630 Course Schedule III Hard To Do To Do To Do To Do
631 Design Excel Sum Formula 🔒 Hard To Do To Do To Do To Do
632 Smallest Range Hard To Do To Do To Do To Do
633 Sum of Square Numbers Easy To Do To Do To Do To Do
634 Find the Derangement of An Array 🔒 Medium To Do To Do To Do To Do
635 Design Log Storage System 🔒 Medium To Do To Do To Do To Do
636 Exclusive Time of Functions Medium To Do To Do To Do To Do
637 Average of Levels in Binary Tree Easy To Do Python To Do To Do
638 Shopping Offers Medium To Do To Do To Do To Do
639 Decode Ways II Hard To Do To Do To Do To Do
640 Solve the Equation Medium To Do To Do To Do To Do
642 Design Search Autocomplete System 🔒 Hard To Do To Do To Do To Do
643 Maximum Average Subarray I Easy To Do To Do To Do To Do
644 Maximum Average Subarray II 🔒 Hard To Do To Do To Do To Do
645 Set Mismatch Easy To Do To Do To Do To Do
646 Maximum Length of Pair Chain Medium To Do To Do To Do To Do
647 Palindromic Substrings Medium To Do To Do To Do To Do
648 Replace Words Medium To Do To Do To Do To Do
649 Dota2 Senate Medium To Do To Do To Do To Do
650 2 Keys Keyboard Medium To Do To Do To Do To Do
651 4 Keys Keyboard 🔒 Medium To Do To Do To Do To Do
652 Find Duplicate Subtrees Medium To Do To Do To Do To Do
653 Two Sum IV - Input is a BST Easy To Do To Do To Do To Do
654 Maximum Binary Tree Medium To Do To Do To Do To Do
655 Print Binary Tree Medium To Do To Do To Do To Do
656 Coin Path 🔒 Hard To Do To Do To Do To Do
657 Judge Route Circle Easy To Do To Do To Do To Do
658 Find K Closest Elements Medium To Do To Do To Do To Do
659 Split Array into Consecutive Subsequences Medium To Do To Do To Do To Do
660 Remove 9 🔒 Hard To Do To Do To Do To Do
661 Image Smoother Easy To Do To Do To Do To Do
662 Maximum Width of Binary Tree Medium To Do To Do To Do To Do
663 Equal Tree Partition 🔒 Medium To Do To Do To Do To Do
664 Strange Printer Hard To Do To Do To Do To Do
665 Non-decreasing Array Easy To Do To Do To Do To Do
666 Path Sum IV 🔒 Medium To Do To Do To Do To Do
667 Beautiful Arrangement II Medium To Do To Do To Do To Do
668 Kth Smallest Number in Multiplication Table Hard To Do To Do To Do To Do
669 Trim a Binary Search Tree Easy To Do To Do To Do To Do
670 Maximum Swap Medium To Do To Do To Do To Do
671 Second Minimum Node In a Binary Tree Easy To Do To Do To Do To Do
672 Bulb Switcher II Medium To Do To Do To Do To Do
673 Number of Longest Increasing Subsequence Medium To Do To Do To Do To Do
674 Longest Continuous Increasing Subsequence Easy To Do To Do To Do To Do
675 Cut Off Trees for Golf Event Hard To Do To Do To Do To Do
676 Implement Magic Dictionary Medium To Do To Do To Do To Do
677 Map Sum Pairs Medium To Do To Do To Do To Do
678 Valid Parenthesis String Medium To Do To Do To Do To Do
679 24 Game Hard To Do To Do To Do To Do
680 Valid Palindrome II Easy To Do To Do To Do To Do
681 Next Closest Time 🔒 Medium To Do To Do To Do To Do
682 Baseball Game Easy To Do To Do To Do To Do
683 K Empty Slots 🔒 Hard To Do To Do To Do To Do
684 Redundant Connection Medium To Do To Do To Do To Do
685 Redundant Connection II Hard To Do To Do To Do To Do
686 Repeated String Match Easy To Do To Do To Do To Do
687 Longest Univalue Path Easy To Do To Do To Do To Do
688 Knight Probability in Chessboard Medium To Do To Do To Do To Do
689 Maximum Sum of 3 Non-Overlapping Subarrays Hard To Do To Do To Do To Do
690 Employee Importance Easy To Do To Do To Do To Do
691 Stickers to Spell Word Hard To Do To Do To Do To Do
692 Top K Frequent Words Medium To Do To Do To Do To Do
693 Binary Number with Alternating Bits Easy To Do To Do To Do To Do
694 Number of Distinct Islands 🔒 Medium To Do To Do To Do To Do
695 Max Area of Island Easy To Do To Do To Do To Do
696 Count Binary Substrings Easy To Do To Do To Do To Do
697 Degree of an Array Easy To Do To Do To Do To Do
698 Partition to K Equal Sum Subsets Medium To Do To Do To Do To Do
699 Falling Squares Hard To Do To Do To Do To Do
711 Number of Distinct Islands II 🔒 Hard To Do To Do To Do To Do
712 Minimum ASCII Delete Sum for Two Strings Medium To Do To Do To Do To Do
713 Subarray Product Less Than K Medium To Do To Do To Do To Do
714 Best Time to Buy and Sell Stock with Transaction Fee Medium To Do To Do To Do To Do
715 Range Module Hard To Do To Do To Do To Do
716 Max Stack 🔒 Hard To Do To Do To Do To Do
717 1-bit and 2-bit Characters Easy To Do To Do To Do To Do
718 Maximum Length of Repeated Subarray Medium To Do To Do To Do To Do
719 Find K-th Smallest Pair Distance Hard To Do To Do To Do To Do
720 Longest Word in Dictionary Easy To Do To Do To Do To Do
721 Accounts Merge Medium To Do To Do To Do To Do
722 Remove Comments Medium To Do To Do To Do To Do
723 Candy Crush 🔒 Medium To Do To Do To Do To Do
724 Find Pivot Index Easy To Do To Do To Do To Do
725 Split Linked List in Parts Medium To Do Python To Do To Do
726 Number of Atoms Hard To Do To Do To Do To Do
727 Minimum Window Subsequence 🔒 Hard To Do To Do To Do To Do
728 Self Dividing Numbers Easy To Do To Do To Do To Do
729 My Calendar I Medium To Do To Do To Do To Do
730 Count Different Palindromic Subsequences Hard To Do To Do To Do To Do
731 My Calendar II Medium To Do To Do To Do To Do
732 My Calendar III Hard To Do To Do To Do To Do
733 Flood Fill Easy To Do To Do To Do To Do
734 Sentence Similarity 🔒 Easy To Do To Do To Do To Do
735 Asteroid Collision Medium To Do To Do To Do To Do
736 Parse Lisp Expression Hard To Do To Do To Do To Do
737 Sentence Similarity II 🔒 Medium To Do To Do To Do To Do
738 Monotone Increasing Digits Medium To Do To Do To Do To Do
739 Daily Temperatures Medium To Do To Do To Do To Do
740 Delete and Earn Medium To Do To Do To Do To Do
741 Cherry Pickup Hard To Do To Do To Do To Do
742 Closest Leaf in a Binary Tree 🔒 Medium To Do To Do To Do To Do
743 Network Delay Time Medium To Do To Do To Do To Do
744 Find Smallest Letter Greater Than Target Easy To Do To Do To Do To Do
745 Prefix and Suffix Search Hard To Do To Do To Do To Do
746 Min Cost Climbing Stairs Easy To Do To Do To Do To Do
747 Largest Number At Least Twice of Others Easy To Do To Do To Do To Do
748 Shortest Completing Word Medium To Do To Do To Do To Do
749 Contain Virus Hard To Do To Do To Do To Do
750 Number Of Corner Rectangles 🔒 Medium To Do To Do To Do To Do
751 IP to CIDR 🔒 Easy To Do To Do To Do To Do
752 Open the Lock Medium To Do To Do To Do To Do
753 Cracking the Safe Hard To Do To Do To Do To Do
754 Reach a Number Medium To Do To Do To Do To Do
755 Pour Water 🔒 Medium To Do To Do To Do To Do
756 Pyramid Transition Matrix Medium To Do To Do To Do To Do
757 Set Intersection Size At Least Two Hard To Do To Do To Do To Do
758 Bold Words in String 🔒 Easy To Do To Do To Do To Do
759 Employee Free Time 🔒 Hard To Do To Do To Do To Do
760 Find Anagram Mappings 🔒 Easy To Do To Do To Do To Do
761 Special Binary String Hard To Do To Do To Do To Do
762 Prime Number of Set Bits in Binary Representation Easy To Do To Do To Do To Do
763 Partition Labels Medium To Do To Do To Do To Do
764 Largest Plus Sign Medium To Do To Do To Do To Do
765 Couples Holding Hands Hard To Do To Do To Do To Do
766 Toeplitz Matrix Easy To Do To Do To Do To Do
767 Reorganize String Medium To Do To Do To Do To Do
768 Max Chunks To Make Sorted II Hard To Do To Do To Do To Do
769 Max Chunks To Make Sorted Medium To Do To Do To Do To Do
770 Basic Calculator IV Hard To Do To Do To Do To Do
771 Jewels and Stones Easy To Do To Do To Do To Do
772 Basic Calculator III 🔒 Hard To Do To Do To Do To Do
773 Sliding Puzzle Hard To Do To Do To Do To Do
774 Minimize Max Distance to Gas Station 🔒 Hard To Do To Do To Do To Do
775 Global and Local Inversions Medium To Do To Do To Do To Do
776 Split BST 🔒 Medium To Do To Do To Do To Do
777 Swap Adjacent in LR String Medium To Do To Do To Do To Do
778 Swim in Rising Water Hard To Do To Do To Do To Do
779 K-th Symbol in Grammar Medium To Do To Do To Do To Do
780 Reaching Points Hard To Do To Do To Do To Do
781 Rabbits in Forest Medium To Do To Do To Do To Do
782 Transform to Chessboard Hard To Do To Do To Do To Do
783 Minimum Distance Between BST Nodes Easy To Do To Do To Do To Do
784 Letter Case Permutation Easy To Do To Do To Do To Do
785 Is Graph Bipartite? Medium To Do To Do To Do To Do
786 K-th Smallest Prime Fraction Hard To Do To Do To Do To Do
787 Cheapest Flights Within K Stops Medium To Do To Do To Do To Do
788 Rotated Digits Easy To Do To Do To Do To Do
789 Escape The Ghosts Medium To Do To Do To Do To Do
790 Domino and Tromino Tiling Medium To Do To Do To Do To Do
791 Custom Sort String Medium To Do To Do To Do To Do
792 Number of Matching Subsequences Medium To Do To Do To Do To Do
793 Preimage Size of Factorial Zeroes Function Hard To Do To Do To Do To Do
794 Valid Tic-Tac-Toe State Medium To Do To Do To Do To Do
795 Number of Subarrays with Bounded Maximum Medium To Do To Do To Do To Do
796 Rotate String Easy To Do To Do To Do To Do
797 All Paths From Source to Target Medium To Do To Do To Do To Do
798 Smallest Rotation with Highest Score Hard To Do To Do To Do To Do
799 Champagne Tower Medium To Do To Do To Do To Do
800 Similar RGB Color 🔒 Easy To Do To Do To Do To Do
801 Minimum Swaps To Make Sequences Increasing Medium To Do To Do To Do To Do
802 Find Eventual Safe States Medium To Do To Do To Do To Do
803 Bricks Falling When Hit Hard To Do To Do To Do To Do
804 Unique Morse Code Words Easy To Do To Do To Do To Do
805 Split Array With Same Average Hard To Do To Do To Do To Do
806 Number of Lines To Write String Easy To Do To Do To Do To Do
807 Max Increase to Keep City Skyline Medium To Do To Do To Do To Do
808 Soup Servings Medium To Do To Do To Do To Do
809 Expressive Words Medium To Do To Do To Do To Do
810 Chalkboard XOR Game Hard To Do To Do To Do To Do
811 Subdomain Visit Count Easy To Do To Do To Do To Do
812 Largest Triangle Area Easy To Do To Do To Do To Do
813 Largest Sum of Averages Medium To Do To Do To Do To Do
814 Binary Tree Pruning Medium To Do To Do To Do To Do
815 Bus Routes Hard To Do To Do To Do To Do
816 Ambiguous Coordinates Medium To Do To Do To Do To Do
817 Linked List Components Medium To Do To Do To Do To Do
818 Race Car Hard To Do To Do To Do To Do
819 Most Common Word Easy To Do To Do To Do To Do
820 Short Encoding of Words Medium To Do To Do To Do To Do
821 Shortest Distance to a Character Easy To Do To Do To Do To Do
822 Card Flipping Game Medium To Do To Do To Do To Do
823 Binary Trees With Factors Medium To Do To Do To Do To Do
824 Goat Latin Easy To Do To Do To Do To Do
825 Friends Of Appropriate Ages Medium To Do To Do To Do To Do
826 Most Profit Assigning Work Medium To Do To Do To Do To Do
827 Making A Large Island Hard To Do To Do To Do To Do
828 Unique Letter String Hard To Do To Do To Do To Do
829 Consecutive Numbers Sum Medium To Do To Do To Do To Do
830 Positions of Large Groups Easy To Do To Do To Do To Do
831 Masking Personal Information Medium To Do To Do To Do To Do
832 Flipping an Image Easy To Do To Do To Do To Do
833 Find And Replace in String Medium To Do To Do To Do To Do
834 Sum of Distances in Tree Hard To Do To Do To Do To Do
835 Image Overlap Medium To Do To Do To Do To Do
836 Rectangle Overlap Easy To Do To Do To Do To Do
837 New 21 Game Medium To Do To Do To Do To Do
838 Push Dominoes Medium To Do To Do To Do To Do
839 Similar String Groups Hard To Do To Do To Do To Do
840 Magic Squares In Grid Easy To Do To Do To Do To Do
841 Keys and Rooms Medium To Do To Do To Do To Do
842 Split Array into Fibonacci Sequence Medium To Do To Do To Do To Do
843 Guess the Word Hard To Do To Do To Do To Do
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