# Title Solution Acceptance Difficulty Frequency
138 Copy List with Random Pointer 36.7% Medium
151 Reverse Words in a String 22.0% Medium
1 Two Sum 45.7% Easy
273 Integer to English Words 27.1% Hard
146 LRU Cache 33.3% Medium
54 Spiral Matrix 34.2% Medium
277 Find the Celebrity 41.9% Medium
2 Add Two Numbers 34.0% Medium
348 Design Tic-Tac-Toe 54.5% Medium
103 Binary Tree Zigzag Level Order Traversal 48.4% Medium
5 Longest Palindromic Substring 29.5% Medium
42 Trapping Rain Water 49.0% Hard
206 Reverse Linked List 62.8% Easy
8 String to Integer (atoi) 15.4% Medium
200 Number of Islands 46.9% Medium
186 Reverse Words in a String II 43.5% Medium
4 Median of Two Sorted Arrays 29.7% Hard
88 Merge Sorted Array 39.5% Easy
21 Merge Two Sorted Lists 53.7% Easy
17 Letter Combinations of a Phone Number 46.9% Medium
218 The Skyline Problem 34.6% Hard
165 Compare Version Numbers 27.5% Medium
25 Reverse Nodes in k-Group 42.3% Hard
240 Search a 2D Matrix II 43.2% Medium
253 Meeting Rooms II 45.8% Medium
10 Regular Expression Matching 26.9% Hard
53 Maximum Subarray 46.6% Easy
33 Search in Rotated Sorted Array 34.6% Medium
236 Lowest Common Ancestor of a Binary Tree 45.9% Medium
297 Serialize and Deserialize Binary Tree 47.6% Hard
445 Add Two Numbers II 54.6% Medium
23 Merge k Sorted Lists 40.4% Hard
116 Populating Next Right Pointers in Each Node 45.5% Medium
20 Valid Parentheses 39.0% Easy
419 Battleships in a Board 70.1% Medium
557 Reverse Words in a String III 70.0% Easy
722 Remove Comments 34.6% Medium
402 Remove K Digits 28.4% Medium
105 Construct Binary Tree from Preorder and Inorder Traversal 49.0% Medium
24 Swap Nodes in Pairs 50.6% Medium
98 Validate Binary Search Tree 27.8% Medium
75 Sort Colors 47.5% Medium
48 Rotate Image 56.9% Medium
223 Rectangle Area 37.8% Medium
794 Valid Tic-Tac-Toe State 32.6% Medium
134 Gas Station 38.6% Medium
121 Best Time to Buy and Sell Stock 50.5% Easy
535 Encode and Decode TinyURL 80.0% Medium
44 Wildcard Matching 24.8% Hard
545 Boundary of Binary Tree 39.0% Medium
224 Basic Calculator 36.9% Hard
168 Excel Sheet Column Title 31.1% Easy
73 Set Matrix Zeroes 43.2% Medium
428 Serialize and Deserialize N-ary Tree 59.5% Hard
22 Generate Parentheses 62.9% Medium
450 Delete Node in a BST 43.2% Medium
443 String Compression 41.4% Easy
1239 Maximum Length of a Concatenated String with Unique Characters 47.9% Medium
235 Lowest Common Ancestor of a Binary Search Tree 50.1% Easy
13 Roman to Integer 55.8% Easy
212 Word Search II 35.0% Hard
344 Reverse String 68.7% Easy
43 Multiply Strings 34.0% Medium
71 Simplify Path 32.7% Medium
117 Populating Next Right Pointers in Each Node II 39.3% Medium
285 Inorder Successor in BST 40.6% Medium
232 Implement Queue using Stacks 49.8% Easy
15 3Sum 26.9% Medium
79 Word Search 35.7% Medium
99 Recover Binary Search Tree 39.8% Hard
295 Find Median from Data Stream 44.5% Hard
49 Group Anagrams 57.1% Medium
12 Integer to Roman 55.2% Medium
141 Linked List Cycle 41.2% Easy
37 Sudoku Solver 43.8% Hard
72 Edit Distance 45.0% Hard
36 Valid Sudoku 48.9% Medium
76 Minimum Window Substring 34.7% Hard
3 Longest Substring Without Repeating Characters 30.5% Medium
160 Intersection of Two Linked Lists 40.8% Easy
102 Binary Tree Level Order Traversal 54.7% Medium
46 Permutations 63.8% Medium
155 Min Stack 44.6% Easy
51 N-Queens 46.8% Hard
149 Max Points on a Line 17.0% Hard
173 Binary Search Tree Iterator 56.8% Medium
56 Merge Intervals 39.4% Medium
93 Restore IP Addresses 35.8% Medium
636 Exclusive Time of Functions 52.0% Medium
139 Word Break 40.2% Medium
449 Serialize and Deserialize BST 52.2% Medium
384 Shuffle an Array 52.8% Medium
238 Product of Array Except Self 60.2% Medium
208 Implement Trie (Prefix Tree) 49.6% Medium
706 Design HashMap 61.4% Easy
31 Next Permutation 32.7% Medium
61 Rotate List 30.1% Medium
564 Find the Closest Palindrome 19.8% Hard
74 Search a 2D Matrix 36.6% Medium
836 Rectangle Overlap 48.5% Easy
127 Word Ladder 29.7% Medium
227 Basic Calculator II 37.0% Medium
229 Majority Element II 35.7% Medium
174 Dungeon Game 32.4% Hard
322 Coin Change 35.6% Medium
153 Find Minimum in Rotated Sorted Array 45.2% Medium
642 Design Search Autocomplete System 44.8% Hard
59 Spiral Matrix II 54.1% Medium
133 Clone Graph 35.0% Medium
591 Tag Validator 34.3% Hard
179 Largest Number 28.9% Medium
92 Reverse Linked List II 39.0% Medium
234 Palindrome Linked List 39.4% Easy
128 Longest Consecutive Sequence 45.2% Hard
346 Moving Average from Data Stream 71.1% Easy
239 Sliding Window Maximum 43.2% Hard
126 Word Ladder II 22.3% Hard
468 Validate IP Address 24.1% Medium
204 Count Primes 31.5% Easy
135 Candy 31.7% Hard
679 24 Game 46.5% Hard
225 Implement Stack using Queues 45.3% Easy
148 Sort List 42.6% Medium
142 Linked List Cycle II 37.4% Medium
287 Find the Duplicate Number 55.7% Medium
328 Odd Even Linked List 55.9% Medium
283 Move Zeroes 57.9% Easy
124 Binary Tree Maximum Path Sum 34.4% Hard
457 Circular Array Loop 29.4% Medium
268 Missing Number 51.8% Easy
215 Kth Largest Element in an Array 55.6% Medium
50 Pow(x, n) 30.4% Medium
94 Binary Tree Inorder Traversal 63.5% Medium
41 First Missing Positive 32.1% Hard
19 Remove Nth Node From End of List 35.2% Medium
85 Maximal Rectangle 37.9% Hard
510 Inorder Successor in BST II 58.2% Medium
189 Rotate Array 34.8% Easy
252 Meeting Rooms 54.6% Easy
380 Insert Delete GetRandom O(1) 47.6% Medium
403 Frog Jump 39.8% Hard
529 Minesweeper 59.2% Medium
169 Majority Element 58.8% Easy
269 Alien Dictionary 33.3% Hard
68 Text Justification 27.9% Hard
78 Subsets 62.2% Medium
695 Max Area of Island 62.9% Medium
69 Sqrt(x) 34.0% Easy
669 Trim a Binary Search Tree 63.0% Easy
89 Gray Code 49.2% Medium
1246 Palindrome Removal 45.8% Hard
152 Maximum Product Subarray 31.8% Medium
84 Largest Rectangle in Histogram 35.3% Hard
347 Top K Frequent Elements 61.3% Medium
289 Game of Life 54.7% Medium
11 Container With Most Water 51.0% Medium
378 Kth Smallest Element in a Sorted Matrix 54.4% Medium
91 Decode Ways 24.7% Medium
242 Valid Anagram 57.0% Easy
237 Delete Node in a Linked List 64.1% Easy
32 Longest Valid Parentheses 28.5% Hard
28 Implement strStr() 34.5% Easy
38 Count and Say 44.7% Easy
460 LFU Cache 34.4% Hard
362 Design Hit Counter 63.8% Medium
7 Reverse Integer 25.8% Easy
651 4 Keys Keyboard 52.5% Medium
702 Search in a Sorted Array of Unknown Size 67.0% Medium
171 Excel Sheet Column Number 56.1% Easy
207 Course Schedule 43.2% Medium
26 Remove Duplicates from Sorted Array 45.3% Easy
340 Longest Substring with At Most K Distinct Characters 44.2% Hard
885 Spiral Matrix III 69.5% Medium
470 Implement Rand10() Using Rand7() 46.3% Medium
114 Flatten Binary Tree to Linked List 49.5% Medium
772 Basic Calculator III 41.4% Hard
140 Word Break II 32.7% Hard
9 Palindrome Number 48.5% Easy
622 Design Circular Queue 43.8% Medium
110 Balanced Binary Tree 43.6% Easy
123 Best Time to Buy and Sell Stock III 38.4% Hard
161 One Edit Distance 32.3% Medium
62 Unique Paths 54.2% Medium
191 Number of 1 Bits 50.0% Easy
45 Jump Game II 30.6% Hard
394 Decode String 50.2% Medium
64 Minimum Path Sum 54.6% Medium
86 Partition List 41.7% Medium
887 Super Egg Drop 27.0% Hard
39 Combination Sum 56.3% Medium
417 Pacific Atlantic Water Flow 41.3% Medium
652 Find Duplicate Subtrees 50.3% Medium
560 Subarray Sum Equals K 43.8% Medium
412 Fizz Buzz 62.3% Easy
81 Search in Rotated Sorted Array II 33.0% Medium
304 Range Sum Query 2D - Immutable 38.7% Medium
1044 Longest Duplicate Substring 31.9% Hard
716 Max Stack 42.6% Easy
150 Evaluate Reverse Polish Notation 36.4% Medium
281 Zigzag Iterator 58.5% Medium
77 Combinations 54.9% Medium
29 Divide Two Integers 16.4% Medium
387 First Unique Character in a String 53.4% Easy
863 All Nodes Distance K in Binary Tree 55.6% Medium
300 Longest Increasing Subsequence 42.7% Medium
407 Trapping Rain Water II 42.5% Hard
379 Design Phone Directory 46.9% Medium
415 Add Strings 47.6% Easy
228 Summary Ranges 39.6% Medium
733 Flood Fill 55.3% Easy
82 Remove Duplicates from Sorted List II 37.0% Medium
647 Palindromic Substrings 60.8% Medium
143 Reorder List 38.8% Medium
230 Kth Smallest Element in a BST 60.4% Medium
358 Rearrange String k Distance Apart 34.9% Hard
655 Print Binary Tree 55.0% Medium
426 Convert Binary Search Tree to Sorted Doubly Linked List 59.2% Medium
199 Binary Tree Right Side View 54.2% Medium
518 Coin Change 2 50.3% Medium
210 Course Schedule II 40.8% Medium
70 Climbing Stairs 47.8% Easy
118 Pascal's Triangle 52.7% Easy
572 Subtree of Another Tree 44.1% Easy
286 Walls and Gates 54.7% Medium
759 Employee Free Time 66.3% Hard
493 Reverse Pairs 25.3% Hard
688 Knight Probability in Chessboard 49.0% Medium
543 Diameter of Binary Tree 48.5% Easy
432 All O`one Data Structure 32.5% Hard
101 Symmetric Tree 46.9% Easy
1156 Swap For Longest Repeated Character Substring 48.9% Medium
267 Palindrome Permutation II 36.5% Medium
167 Two Sum II - Input array is sorted 54.2% Easy
83 Remove Duplicates from Sorted List 45.5% Easy
490 The Maze 51.9% Medium
767 Reorganize String 48.8% Medium
516 Longest Palindromic Subsequence 53.4% Medium
430 Flatten a Multilevel Doubly Linked List 55.5% Medium
280 Wiggle Sort 63.9% Medium
108 Convert Sorted Array to Binary Search Tree 58.1% Easy
214 Shortest Palindrome 29.8% Hard
556 Next Greater Element III 31.8% Medium
333 Largest BST Subtree 35.9% Medium
122 Best Time to Buy and Sell Stock II 57.1% Easy
692 Top K Frequent Words 51.9% Medium
55 Jump Game 34.7% Medium
917 Reverse Only Letters 58.0% Easy
266 Palindrome Permutation 61.9% Easy
935 Knight Dialer 45.3% Medium
30 Substring with Concatenation of All Words 25.4% Hard
698 Partition to K Equal Sum Subsets 44.9% Medium
316 Remove Duplicate Letters 35.9% Hard
162 Find Peak Element 43.3% Medium
958 Check Completeness of a Binary Tree 52.1% Medium
314 Binary Tree Vertical Order Traversal 45.4% Medium
1344 Angle Between Hands of a Clock 61.3% Medium
1375 Bulb Switcher III 62.7% Medium
413 Arithmetic Slices 58.0% Medium
528 Random Pick with Weight 44.0% Medium
729 My Calendar I 51.9% Medium
438 Find All Anagrams in a String 43.4% Medium
993 Cousins in Binary Tree 52.0% Easy
498 Diagonal Traverse 48.3% Medium
332 Reconstruct Itinerary 36.8% Medium
567 Permutation in String 44.4% Medium
159 Longest Substring with At Most Two Distinct Characters 49.4% Medium
405 Convert a Number to Hexadecimal 44.0% Easy
172 Factorial Trailing Zeroes 37.8% Easy
1062 Longest Repeating Substring 57.2% Medium
112 Path Sum 41.3% Easy
448 Find All Numbers Disappeared in an Array 56.0% Easy
136 Single Number 65.6% Easy
63 Unique Paths II 34.6% Medium
540 Single Element in a Sorted Array 57.9% Medium
147 Insertion Sort List 41.2% Medium
431 Encode N-ary Tree to Binary Tree 70.8% Hard
1236 Web Crawler 64.1% Medium
166 Fraction to Recurring Decimal 21.7% Medium
727 Minimum Window Subsequence 41.8% Hard
1185 Day of the Week 64.0% Easy
14 Longest Common Prefix 35.5% Easy
397 Integer Replacement 32.9% Medium
187 Repeated DNA Sequences 38.9% Medium
65 Valid Number 15.3% Hard
226 Invert Binary Tree 65.1% Easy
383 Ransom Note 53.1% Easy
828 Count Unique Characters of All Substrings of a Given String 45.3% Hard
805 Split Array With Same Average 26.3% Hard
109 Convert Sorted List to Binary Search Tree 47.9% Medium
95 Unique Binary Search Trees II 40.8% Medium
611 Valid Triangle Number 48.5% Medium
106 Construct Binary Tree from Inorder and Postorder Traversal 47.3% Medium
221 Maximal Square 37.8% Medium
97 Interleaving String 31.6% Hard
40 Combination Sum II 48.3% Medium
909 Snakes and Ladders 38.6% Medium
113 Path Sum II 46.9% Medium
354 Russian Doll Envelopes 35.6% Hard
724 Find Pivot Index 44.1% Easy
315 Count of Smaller Numbers After Self 41.6% Hard
349 Intersection of Two Arrays 62.7% Easy
129 Sum Root to Leaf Numbers 49.2% Medium
341 Flatten Nested List Iterator 53.0% Medium
18 4Sum 33.7% Medium
681 Next Closest Time 45.0% Medium
694 Number of Distinct Islands 56.1% Medium
708 Insert into a Sorted Circular Linked List 31.7% Medium
202 Happy Number 50.5% Easy
1197 Minimum Knight Moves 36.0% Medium
107 Binary Tree Level Order Traversal II 53.7% Easy
1136 Parallel Courses 61.1% Hard
198 House Robber 42.1% Easy
6 ZigZag Conversion 36.4% Medium
969 Pancake Sorting 67.7% Medium
104 Maximum Depth of Binary Tree 66.1% Easy
243 Shortest Word Distance 61.0% Easy
120 Triangle 44.3% Medium
308 Range Sum Query 2D - Mutable 35.9% Hard
329 Longest Increasing Path in a Matrix 43.5% Hard
463 Island Perimeter 65.7% Easy
662 Maximum Width of Binary Tree 40.9% Medium
416 Partition Equal Subset Sum 43.8% Medium
67 Add Binary 45.4% Easy
57 Insert Interval 33.6% Hard
257 Binary Tree Paths 51.6% Easy
768 Max Chunks To Make Sorted II 48.8% Hard
509 Fibonacci Number 67.2% Easy
317 Shortest Distance from All Buildings 41.5% Hard
125 Valid Palindrome 36.8% Easy
701 Insert into a Binary Search Tree 77.5% Medium
158 Read N Characters Given Read4 II - Call multiple times 33.9% Hard
205 Isomorphic Strings 39.8% Easy
523 Continuous Subarray Sum 24.6% Medium
216 Combination Sum III 56.7% Medium
568 Maximum Vacation Days 40.9% Hard
282 Expression Add Operators 35.5% Hard
393 UTF-8 Validation 37.5% Medium
100 Same Tree 53.5% Easy
284 Peeking Iterator 45.9% Medium
209 Minimum Size Subarray Sum 38.3% Medium
290 Word Pattern 37.0% Easy
231 Power of Two 43.7% Easy
784 Letter Case Permutation 64.8% Medium
219 Contains Duplicate II 37.8% Easy
299 Bulls and Cows 42.5% Easy
270 Closest Binary Search Tree Value 48.6% Easy
367 Valid Perfect Square 41.7% Easy
773 Sliding Puzzle 59.4% Hard
325 Maximum Size Subarray Sum Equals k 46.8% Medium
843 Guess the Word 46.1% Hard
609 Find Duplicate File in System 59.7% Medium
311 Sparse Matrix Multiplication 62.0% Medium
489 Robot Room Cleaner 69.9% Hard
979 Distribute Coins in Binary Tree 69.0% Medium
399 Evaluate Division 51.7% Medium
844 Backspace String Compare 46.4% Easy
1188 Design Bounded Blocking Queue 70.5% Medium
1038 Binary Search Tree to Greater Sum Tree 80.9% Medium
547 Friend Circles 58.7% Medium
373 Find K Pairs with Smallest Sums 36.8% Medium
653 Two Sum IV - Input is a BST 55.6% Easy
680 Valid Palindrome II 36.7% Easy
131 Palindrome Partitioning 47.7% Medium
271 Encode and Decode Strings 31.6% Medium
721 Accounts Merge 48.9% Medium
833 Find And Replace in String 50.4% Medium
365 Water and Jug Problem 30.6% Medium
939 Minimum Area Rectangle 51.7% Medium
1381 Design a Stack With Increment Operation 74.7% Medium
222 Count Complete Tree Nodes 46.9% Medium
852 Peak Index in a Mountain Array 71.7% Easy
16 3Sum Closest 46.0% Medium
632 Smallest Range Covering Elements from K Lists 52.6% Hard
176 Second Highest Salary 31.7% Easy
34 Find First and Last Position of Element in Sorted Array 36.3% Medium
707 Design Linked List 24.7% Medium
769 Max Chunks To Make Sorted 54.8% Medium
612 Shortest Distance in a Plane 59.6% Medium
217 Contains Duplicate 56.1% Easy
1143 Longest Common Subsequence 58.4% Medium
279 Perfect Squares 47.5% Medium
1114 Print in Order 65.8% Easy
671 Second Minimum Node In a Binary Tree 42.7% Easy
525 Contiguous Array 42.8% Medium
305 Number of Islands II 40.1% Hard
704 Binary Search 52.2% Easy
1008 Construct Binary Search Tree from Preorder Traversal 78.5% Medium
739 Daily Temperatures 63.4% Medium
621 Task Scheduler 50.2% Medium
203 Remove Linked List Elements 38.7% Easy
323 Number of Connected Components in an Undirected Graph 56.1% Medium
406 Queue Reconstruction by Height 67.0% Medium
717 1-bit and 2-bit Characters 48.6% Easy
1386 Cinema Seat Allocation 35.0% Medium
515 Find Largest Value in Each Tree Row 61.2% Medium
973 K Closest Points to Origin 63.9% Medium
442 Find All Duplicates in an Array 67.8% Medium
1324 Print Words Vertically 57.9% Medium
785 Is Graph Bipartite? 47.5% Medium
658 Find K Closest Elements 40.9% Medium
220 Contains Duplicate III 20.9% Medium
90 Subsets II 47.2% Medium
60 Permutation Sequence 38.5% Hard
213 House Robber II 36.5% Medium
532 K-diff Pairs in an Array 31.6% Easy
381 Insert Delete GetRandom O(1) - Duplicates allowed 34.2% Hard
895 Maximum Frequency Stack 60.8% Hard
994 Rotting Oranges 49.3% Medium
256 Paint House 52.2% Easy
96 Unique Binary Search Trees 53.0% Medium
414 Third Maximum Number 30.5% Easy
907 Sum of Subarray Minimums 32.4% Medium
703 Kth Largest Element in a Stream 49.8% Easy
819 Most Common Word 44.8% Easy
480 Sliding Window Median 37.3% Hard
27 Remove Element 48.3% Easy
278 First Bad Version 35.9% Easy
1104 Path In Zigzag Labelled Binary Tree 72.0% Medium
111 Minimum Depth of Binary Tree 37.5% Easy
1116 Print Zero Even Odd 56.2% Medium
503 Next Greater Element II 56.6% Medium
1060 Missing Element in Sorted Array 54.5% Medium
1079 Letter Tile Possibilities 75.3% Medium
144 Binary Tree Preorder Traversal 55.8% Medium
435 Non-overlapping Intervals 43.5% Medium
1027 Longest Arithmetic Subsequence 53.0% Medium
630 Course Schedule III 33.5% Hard
1145 Binary Tree Coloring Game 51.3% Medium
494 Target Sum 46.2% Medium
832 Flipping an Image 76.3% Easy
350 Intersection of Two Arrays II 51.4% Easy
735 Asteroid Collision 41.1% Medium
47 Permutations II 46.6% Medium
676 Implement Magic Dictionary 54.6% Medium
950 Reveal Cards In Increasing Order 74.6% Medium
472 Concatenated Words 43.9% Hard
541 Reverse String II 48.5% Easy
796 Rotate String 49.5% Easy
1229 Meeting Scheduler 52.9% Medium
303 Range Sum Query - Immutable 45.0% Easy
845 Longest Mountain in Array 37.3% Medium
1092 Shortest Common Supersequence 51.7% Hard
670 Maximum Swap 43.8% Medium
981 Time Based Key-Value Store 53.1% Medium
787 Cheapest Flights Within K Stops 39.3% Medium
459 Repeated Substring Pattern 42.2% Easy
977 Squares of a Sorted Array 72.2% Easy
359 Logger Rate Limiter 70.8% Easy
338 Counting Bits 69.6% Medium
872 Leaf-Similar Trees 64.5% Easy
1004 Max Consecutive Ones III 59.2% Medium
1304 Find N Unique Integers Sum up to Zero 76.3% Easy
938 Range Sum of BST 81.4% Easy
35 Search Insert Position 42.7% Easy
876 Middle of the Linked List 68.5% Easy
788 Rotated Digits 57.1% Easy
934 Shortest Bridge 48.4% Medium
884 Uncommon Words from Two Sentences 63.4% Easy
953 Verifying an Alien Dictionary 54.0% Easy
867 Transpose Matrix 62.7% Easy
650 2 Keys Keyboard 49.3% Medium
258 Add Digits 57.7% Easy
929 Unique Email Addresses 67.4% Easy
496 Next Greater Element I 63.9% Easy
485 Max Consecutive Ones 54.4% Easy
452 Minimum Number of Arrows to Burst Balloons 49.6% Medium
437 Path Sum III 47.3% Medium
575 Distribute Candies 61.4% Easy
1192 Critical Connections in a Network 48.6% Hard
987 Vertical Order Traversal of a Binary Tree 36.5% Medium
1091 Shortest Path in Binary Matrix 38.3% Medium
1019 Next Greater Node In Linked List 58.0% Medium
1122 Relative Sort Array 67.7% Easy
674 Longest Continuous Increasing Subsequence 45.9% Easy
1155 Number of Dice Rolls With Target Sum 48.8% Medium
905 Sort Array By Parity 74.9% Easy
743 Network Delay Time 45.0% Medium
1249 Minimum Remove to Make Valid Parentheses 62.6% Medium
211 Design Add and Search Words Data Structure 38.2% Medium
1470 Shuffle the Array 88.8% Easy
513 Find Bottom Left Tree Value 61.6% Medium
631 Design Excel Sum Formula 31.6% Hard
654 Maximum Binary Tree 79.9% Medium
672 Bulb Switcher II 50.9% Medium
871 Minimum Number of Refueling Stops 31.4% Hard
886 Possible Bipartition 44.2% Medium
901 Online Stock Span 60.2% Medium
972 Equal Rational Numbers 41.5% Hard
1006 Clumsy Factorial 53.3% Medium
1013 Partition Array Into Three Parts With Equal Sum 51.6% Easy
1053 Previous Permutation With One Swap 48.4% Medium
1093 Statistics from a Large Sample 48.3% Medium
1131 Maximum of Absolute Value Expression 52.9% Medium
1198 Find Smallest Common Element in All Rows 74.9% Medium
1206 Design Skiplist 57.3% Hard
1273 Delete Tree Nodes 63.6% Medium
1285 Find the Start and End Number of Continuous Ranges 84.2% Medium
1306 Jump Game III 60.4% Medium
1318 Minimum Flips to Make a OR b Equal to c 62.9% Medium
1339 Maximum Product of Splitted Binary Tree 37.1% Medium
1369 Get the Second Most Recent Activity 65.9% Hard
1371 Find the Longest Substring Containing Vowels in Even Counts 58.5% Medium
1394 Find Lucky Integer in an Array 64.2% Easy
1415 The k-th Lexicographical String of All Happy Strings of Length n 70.3% Medium
1417 Reformat The String 55.0% Easy
1448 Count Good Nodes in Binary Tree 70.2% Medium
1458 Max Dot Product of Two Subsequences 41.8% Hard
1469 Find All The Lonely Nodes 81.8% Easy
1474 Delete N Nodes After M Nodes of a Linked List 74.1% Easy
1510 Stone Game IV 50.7% Hard
1518 Water Bottles 63.0% Easy
1523 Count Odd Numbers in an Interval Range 55.7% Easy
1528 Shuffle String 85.7% Easy
1539 Kth Missing Positive Number 53.4% Easy
楼主: suanmeiguo
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