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题目
题解
难度
1
LeetCode 1 Two Sum (Python)
Easy
3
LeetCode 3 Longest Substring Without Repeating Characters (Python)
Medium
5
LeetCode 5 Longest Palindromic Substring (Python)
Medium
8
LeetCode 8 String to Integer (atoi) (Python)
Medium
11
LeetCode 11 Container With Most Water (Python)
Medium
12
LeetCode 12 Integer to Roman (Python)
Medium
13
LeetCode 13 Roman to Integer (Python)
Medium
14
LeetCode 14 Longest Common Prefix (Python)
Easy
15
LeetCode 15 3Sum (Python)
Medium
17
LeetCode 17 Letter Combinations of a Phone Number (Python)
Medium
19
LeetCode 19 Remove Nth Node From End of List (Python)
Medium
20
LeetCode 20 Valid Parentheses (Python)
Easy
21
LeetCode 21 Merge Two Sorted Lists (Python)
Easy
23
LeetCode 23 Merge k Sorted Lists (Python)
Hard
24
LeetCode 24 Swap Nodes in Pairs (Python)
Medium
31
LeetCode 31 Next Permutation (Python)
Medium
32
LeetCode 32 Longest Valid Parentheses (Python)
Hard
33
LeetCode 33 Search in Rotated Sorted Array (Python)
Medium
35
LeetCode 35 Search Insert Position (Introduce python bisect) (Python)
Easy
36
LeetCode 36 Valid Sudoku (Python)
Medium
39
LeetCode 39 Combination Sum (Python)
Medium
41
LeetCode 41 First Missing Positive (Python)
Hard
45
LeetCode 45 Jump Game II (Python)
Medium
48
LeetCode 48 Rotate Image (Python)
Medium
49
LeetCode 49 Group Anagrams (Python)
Medium
50
LeetCode 50 Pow(x, n) (Python)
Medium
53
LeetCode 53 Maximum Subarray (Python)
Easy
55
LeetCode 55 Jump Game (Python)
Medium
56
LeetCode 56 Merge Intervals (Python)
Medium
57
LeetCode 57 Insert Interval (Python)
Hard
58
LeetCode 58 Length of Last Word (Python)
Easy
59
LeetCode 59 Spiral Matrix II (Python)
Medium
60
LeetCode 60 Permutation Sequence (Python)
Medium
61
LeetCode 61 Rotate List (Python)
Medium
62
LeetCode 62 Unique Paths (Python)
Medium
63
LeetCode 63 Unique Paths II (Python)
Medium
64
LeetCode 64 Minimum Path Sum (Python)
Medium
65
LeetCode 65 Valid Number (Python)
Hard
66
LeetCode 66 Plus One (Python)
Easy
67
LeetCode 67 Add Binary (Python)
Easy
68
LeetCode 68 Text Justification (Python)
Hard
70
LeetCode 70 Climbing Stairs (Python)
Easy
71
LeetCode 71 Simplify Path (Python)
Medium
72
LeetCode 72 Edit Distance (Python)
Hard
73
LeetCode 73 Set Matrix Zeroes (Python)
Medium
74
LeetCode 74 Search a 2D Matrix (Python)
75
LeetCode 75 Sort Colors (Python)
Medium
76
LeetCode 76 Minimum Window Substring (Python)
Hard
78
LeetCode 78 Subsets (Python)
Medium
79
LeetCode 79 Word Search (Python)
Medium
80
LeetCode 80 Remove Duplicates from Sorted Array II (Python)
Medium
84
LeetCode 84 Largest Rectangle in Histogram (Python)
Hard
87
LeetCode 87 Scramble String (Python)
Hard
88
LeetCode 88 Merge Sorted Array (Python)
Easy
90
LeetCode 90 Subsets II (Python)
Medium
91
LeetCode 91 Decode Ways (Python)
Medium
94
LeetCode 94 Binary Tree Inorder Traversal (Python)
Easy
95
LeetCode 95 Unique Binary Search Trees II (Python)
Easy
96
LeetCode 96 Unique Binary Search Trees (Python)
Medium
98
LeetCode 98 Validate Binary Search Tree (Python)
Medium
100
LeetCode 100 Same Tree (Python)
Easy
103
LeetCode 103 Binary Tree Zigzag Level Order Traversal (Python)
Medium
104
LeetCode 104 Maximum Depth of Binary Tree (Python)
Easy
106
LeetCode 106 Construct Binary Tree from Inorder and Postorder Traversal (Python)
Medium
107
LeetCode 107 Binary Tree Level Order Traversal II (Python)
Easy
110
LeetCode 110 Balanced Binary Tree (Python)
Medium
111
LeetCode 111 Minimum Depth of Binary Tree (Python)
Easy
113
LeetCode 113 Path Sum II (Python)
Medium
117
LeetCode 117 Populating Next Right Pointers in Each Node II (Python)
Medium
119
LeetCode 119 Pascal's Triangle II (Python)
Easy
120
LeetCode 120 Triangle (Python)
Medium
121
LeetCode 121 Best Time to Buy and Sell Stock (Python)
Easy
122
LeetCode 122 Best Time to Buy and Sell Stock II (Python)
Easy
123
LeetCode 123 Best Time to Buy and Sell Stock III (Python)
Hard
124
LeetCode 124 Binary Tree Maximum Path Sum (Python)
Hard
125
LeetCode 125 Valid Palindrome (Python)
Easy
126
LeetCode 126 Word Ladder II (Python)
Hard
127
LeetCode 127 Word Ladder (Python)
Hard
128
LeetCode 128 Longest Consecutive Sequence (Python)
Medium
129
LeetCode 129 Sum Root to Leaf Numbers (Python)
Medium
130
LeetCode 130 Surrounded Regions (Python)
Medium
132
LeetCode 132 Palindrome Partitioning II (Python)
Hard
133
LeetCode 133 Clone Graph (Python)
Medium
134
LeetCode 134 Gas Station (Python)
Medium
136
LeetCode 136 Single Number (Python)
Easy
137
LeetCode 137 Single Number II (Python)
Medium
138
LeetCode 138 Copy List with Random Pointer (Python)
Medium
139
LeetCode 139 Word Break (Python)
Medium
140
LeetCode 140 Word Break II (Python)
Hard
141
LeetCode 141 Linked List Cycle (Python)
Easy
142
LeetCode 142 Linked List Cycle II (Python)
Medium
143
LeetCode 143 Reorder List (Python)
Medium
144
LeetCode 144 Binary Tree Preorder Traversal (Python)
Easy
145
LeetCode 145 Binary Tree Postorder Traversal (Python)
Easy
147
LeetCode 147 Insertion Sort List (Python)
Medium
148
LeetCode 148 Sort List (Python)
Medium
151
LeetCode 151 Reverse Words in a String (Python)
Medium
152
LeetCode 152 Maximum Product Subarray (Python)
Medium
153
LeetCode 153 Find Minimum in Rotated Sorted Array (Python)
Medium
154
LeetCode 154 Find Minimum in Rotated Sorted Array II (Python)
Hard
155
LeetCode 155 Min Stack (Python)
Easy
160
LeetCode 160 Intersection of Two Linked Lists (Python)
Easy
162
LeetCode 162 Find Peak Element (Python)
Medium
163
LeetCode 163 Missing Ranges (Python)
Easy
165
LeetCode 165 Compare Version Numbers (Python)
Medium
169
LeetCode 169 Majority Element (Python)
Easy
171
LeetCode 171 Excel Sheet Column Number (Python)
Easy
173
LeetCode 173 Binary Search Tree Iterator (Python)
Medium
174
LeetCode 174 Dungeon Game (Python)
Hard
179
LeetCode 179 Largest Number (Python)
Medium
187
LeetCode 187 Repeated DNA Sequences (Python)
Medium
188
LeetCode LeetCode 每日一题 Daily Challenge 188 Best Time to Buy and Sell Stock IV (Python)
Hard
189
LeetCode 189 Rotate Array (Python)
Medium
190
LeetCode 190 Reverse Bits (Python)
Easy
191
LeetCode 191 Number of 1 Bits (Python)
Easy
198
LeetCode 198 House Robber (Python)
Easy
199
LeetCode 199 Binary Tree Right Side View (Python)
Medium
200
LeetCode 200 Number of Islands (Python)
Medium
201
LeetCode 201 Bitwise AND of Numbers Range (Python)
Medium
202
LeetCode 202 Happy Number (Python)
Easy
203
LeetCode 203 Remove Linked List Elements (Python)
Easy
205
LeetCode 205 Isomorphic Strings (Python)
Easy
206
LeetCode 206 Reverse Linked List (Python)
Easy
207
LeetCode 207 Course Schedule (Python)
Medium
208
LeetCode 208 Implement Trie (Prefix Tree) (Python)
Medium
209
LeetCode 309 Best Time to Buy and Sell Stock with Cooldown (Python)
Medium
210
LeetCode 210 Course Schedule II (Python)
Medium
211
LeetCode 211 Add and Search Word - Data structure design (Python)
Medium
212
LeetCode 212 Word Search II (Python)
Hard
213
LeetCode 213 House Robber II (Python)
Medium
215
LeetCode 215 Kth Largest Element in an Array (Python)
Medium
216
LeetCode 216 Combination Sum III (Python)
Medium
220
LeetCode 220 Contains Duplicate III (Python)
Medium
221
LeetCode 221 Maximal Square (Python)
Medium
222
LeetCode 222 Count Complete Tree Nodes (Python)
Medium
224
LeetCode 224 Basic Calculator (Python)
Hard
226
LeetCode 226 Invert Binary Tree (Python)
Easy
227
LeetCode 227 Basic Calculator II (Python)
Medium
228
LeetCode 228 Summary Ranges (Python)
Easy
229
LeetCode 229 Majority Element II (Python)
Medium
230
LeetCode 230 Kth Smallest Element in a BST (Python)
Medium
231
LeetCode 231 Power of Two (Python)
Easy
236
LeetCode 236 Lowest Common Ancestor of a Binary Tree (Python)
Medium
237
LeetCode 237 Delete Node in a Linked List (Python)
Easy
238
LeetCode 238 Product of Array Except Self (Python)
Medium
239
LeetCode 239 Sliding Window Maximum (Python)
Hard
242
LeetCode 242 Valid Anagram (Python)
Easy
249
LeetCode 249 Group Shifted Strings (Python)
Medium
258
LeetCode 258 Add Digits (Python)
Easy
260
LeetCode 260 Single Number III (Python)
Medium
264
LeetCode 264 Ugly Number II (Python)
Medium
268
LeetCode 268 Missing Number (Python)
Easy
270
LeetCode 270 Closest Binary Search Tree Value (Python)
Easy
274
LeetCode 274 H-Index (Python)
Medium
275
LeetCode 275 H-Index II (Python)
Medium
278
LeetCode 278 First Bad Version (Python)
Easy
279
LeetCode 279 Perfect Squares (Python)
Medium
283
LeetCode 283 Move Zeroes (Python)
Easy
284
LeetCode 284 Peeking Iterator (Python)
Medium
287
LeetCode 287 Find the Duplicate Number (Python)
Medium
289
LeetCode 289 Game of Life (Python)
Medium
290
LeetCode 290 Word Pattern (Python)
Easy
299
LeetCode 299 Bulls and Cows (Python)
Easy
303
LeetCode 303 Range Sum Query - Immutable (Python)
Easy
304
LeetCode 304 Range Sum Query 2D - Immutable (Python)
Medium
310
LeetCode 310 Minimum Height Trees (Python)
Medium
312
LeetCode 312 Burst Balloons (Python)
Hard
314
LeetCode 314 Binary Tree Vertical Order Traversal (Python)
Medium
316
LeetCode 316 Remove Duplicate Letters (Python)
Medium
319
LeetCode 319 Bulb Switcher (Python)
Medium
322
LeetCode 322 Coin Change (Python)
Medium
326
LeetCode 326 Power of Three (Python)
Easy
328
LeetCode 328 Odd Even Linked List (Python)
Medium
329
LeetCode 329 Longest Increasing Path in a Matrix (Python)
Medium
332
LeetCode 332 Reconstruct Itinerary (Python)
Medium
334
LeetCode 334 Increasing Triplet Subsequence (Python)
Medium
337
LeetCode 337 House Robber III (Python)
Medium
338
LeetCode 338 Counting Bits (Python)
Medium
339
LeetCode 339 Nested List Weight Sum (Python)
Medium
342
LeetCode 342 Power of Four (Python)
Easy
344
LeetCode 344 Reverse String (Python)
Easy
346
LeetCode 346 Moving Average from Data Stream (Python)
Easy
347
LeetCode 347 Top K Frequent Elements (Python)
Medium
348
LeetCode 348 Design Tic-Tac-Toe (Python)
Medium
350
LeetCode 350 Intersection of Two Arrays II (Python)
Easy
359
LeetCode 359 Logger Rate Limiter (Python)
Easy
367
LeetCode 367 Valid Perfect Square (Python)
Easy
368
LeetCode 368 Largest Divisible Subset (Python)
Medium
376
LeetCode 376 Wiggle Subsequence (Python)
Medium
377
LeetCode 377 Combination Sum IV (Python)
Medium
380
LeetCode 380 Insert Delete GetRandom O(1) (Python)
Medium
382
LeetCode 382 Linked List Random Node (Python)
Medium
383
LeetCode 383 Ransom Note (Python)
Easy
387
LeetCode 387 First Unique Character in a String (Python)
Easy
389
LeetCode 389 Find the Difference (Python)
Easy
392
LeetCode 392 Is Subsequence (With Follow up) (Python)
Easy
394
LeetCode 394 Decode String (Python)
Medium
395
LeetCode 395 Longest Substring with At Least K Repeating Characters (Python)
Medium
399
LeetCode 399 Evaluate Division (Python)
Medium
402
LeetCode 402 Remove K Digits (Python)
Medium
404
LeetCode 404 Sum of Left Leaves (Python)
Easy
406
LeetCode 406 Queue Reconstruction by Height (Python)
Medium
408
LeetCode 408 Valid Word Abbreviation (Python)
Easy
409
LeetCode 409 Longest Palindrome (Python)
Easy
412
LeetCode 412 Fizz Buzz (Python)
Easy
413
LeetCode 413 Arithmetic Slices (Python)
Medium
415
LeetCode 415 Add Strings (Python)
Easy
416
LeetCode 416 Partition Equal Subset Sum (Python)
Medium
417
LeetCode 417 Pacific Atlantic Water Flow (Python)
Medium
421
LeetCode 421 Maximum XOR of Two Numbers in an Array (Python)
Medium
423
LeetCode 423 Reconstruct Original Digits from English (Python)
Medium
429
LeetCode 429 N-ary Tree Level Order Traversal (Python)
Medium
430
LeetCode 430 Flatten a Multilevel Doubly Linked List (Python)
Medium
435
LeetCode 435 Non-overlapping Intervals (Python)
Medium
436
LeetCode 436 Find Right Interval (Python)
Medium
437
LeetCode 437 Path Sum III (Python)
Medium
438
LeetCode 438 Find All Anagrams in a String (Python)
Medium
441
LeetCode 441 Arranging Coins (Python)
Easy
442
LeetCode 442 Find All Duplicates in an Array (Python)
Medium
445
LeetCode 445 Add Two Numbers II (Python)
Medium
449
LeetCode 449 Serialize and Deserialize BST (Python)
Medium
450
LeetCode 450 Delete Node in a BST (Python)
Medium
451
LeetCode 451 Sort Characters By Frequency (Python)
Medium
452
LeetCode 452 Minimum Number of Arrows to Burst Balloons (Python)
Medium
454
LeetCode 454 4Sum II (Python)
Medium
456
LeetCode 456 132 Pattern (Python)
Medium
458
LeetCode 458 Poor Pigs (Python)
Hard
459
LeetCode 459 Repeated Substring Pattern (Python)
Easy
461
LeetCode 461 Hamming Distance (Python)
Easy
463
LeetCode 463 Island Perimeter (Python)
Easy
468
LeetCode 468 Validate IP Address (Python)
Medium
470
LeetCode 470 Implement Rand10() Using Rand7() (Python)
Medium
476
LeetCode 476 Number Complement (Python)
Easy
478
LeetCode 478 Generate Random Point in a Circle (Python)
Medium
484
LeetCode 484 Find Permutation (Python)
Medium
485
LeetCode 485 Max Consecutive Ones (Python)
Easy
490
LeetCode 490 The Maze (Python)
Medium
495
LeetCode 495 Teemo Attacking (Python)
Medium
496
LeetCode 496 Next Greater Element I (Python)
Easy
497
LeetCode 497 Random Point in Non-overlapping Rectangles (Python)
Medium
498
LeetCode 498 Diagonal Traverse (Python)
Medium
502
LeetCode 502 IPO (Python)
Hard
509
LeetCode 509 Fibonacci Number (Python)
Easy
518
LeetCode 518 Coin Change 2 (Python)
Medium
520
LeetCode 520 Detect Capital (Python)
Easy
525
LeetCode 525 Contiguous Array (Python)
Medium
526
LeetCode 526 Beautiful Arrangement (Python)
Medium
528
LeetCode 528 Random Pick with Weight (Python)
Medium
532
LeetCode 532 K-diff Pairs in an Array (Python)
Medium
537
LeetCode 537 Complex Number Multiplication (Python)
Medium
538
LeetCode 538 Convert BST to Greater Tree (Python)
Medium
539
LeetCode 539 Minimum Time Difference (Python)
Medium
540
LeetCode 540 Single Element in a Sorted Array (Python)
Medium
543
LeetCode 543 Diameter of Binary Tree (Python)
Easy
547
LeetCode 547 Number of Provinces (Python)
Medium
554
LeetCode 554 Brick Wall (Python)
Medium
556
LeetCode 556 Next Greater Element III (Python)
Medium
560
LeetCode 560 Subarray Sum Equals K (Python)
Medium
563
LeetCode 563 Binary Tree Tilt (Python)
Easy
567
LeetCode 567 Permutation in String (Python)
Medium
575
LeetCode 575 Distribute Candies (Python)
Easy
581
LeetCode 581 Shortest Unsorted Continuous Subarray (Python)
Medium
589
LeetCode 589 N-ary Tree Preorder Traversal (Python)
Easy
593
LeetCode 593 Valid Square (Python)
Medium
594
LeetCode 594 Longest Harmonious Subsequence (Python)
Easy
605
LeetCode 605 Can Place Flowers (Python)
Easy
616
LeetCode 616 Add Bold Tag in String (Python)
Medium
621
LeetCode 621 Task Scheduler (Python)
Medium
622
LeetCode 622 Design Circular Queue (Python)
Medium
623
LeetCode 623 Add One Row to Tree (Python)
Medium
633
LeetCode 633 Sum of Square Numbers (Python)
Medium
635
LeetCode 653 Two Sum IV - Input is a BST (Python)
Easy
637
LeetCode 637 Average of Levels in Binary Tree (Python)
Easy
645
LeetCode 645 Set Mismatch (Python)
Easy
647
LeetCode 647 Palindromic Substrings (Python)
Medium
662
LeetCode 662 Maximum Width of Binary Tree (Python)
Medium
667
LeetCode 667 Beautiful Arrangement II (Python)
Medium
669
LeetCode 669 Trim a Binary Search Tree (Python)
Medium
670
LeetCode 670 Maximum Swap (Python)
Medium
673
LeetCode 673 Number of Longest Increasing Subsequence (Python)
Medium
678
LeetCode 678 Valid Parenthesis String (Python)
Medium
680
LeetCode 680 Valid Palindrome II (Python)
Easy
696
LeetCode 696 Count Binary Substrings (Python)
Easy
700
LeetCode 700 Search in a Binary Search Tree (Python)
Easy
701
LeetCode 701 Insert into a Binary Search Tree (Python)
Medium
704
LeetCode 704 Binary Search (Python)
Easy
705
LeetCode 705 Design HashSet (Python)
Easy
708
LeetCode 708 Insert into a Sorted Circular Linked List (Python)
Medium
713
LeetCode 713 Subarray Product Less Than K (Python)
Medium
714
LeetCode 714 Best Time to Buy and Sell Stock with Transaction Fee (Python)
Medium
733
LeetCode 733 Flood Fill (Python)
Easy
735
LeetCode 735 Asteroid Collision (Python)
Medium
743
LeetCode 743 Network Delay Time (Python)
Medium
752
LeetCode 752 Open the Lock (Python)
Medium
763
LeetCode 763 Partition Labels (Python)
Medium
766
LeetCode 766 Toeplitz Matrix (Python)
Easy
767
LeetCode 767 Reorganize String (Python)
Medium
771
LeetCode 771 Jewels and Stones (Python)
Easy
772
LeetCode 772 Basic Calculator III (Python)
Hard
779
LeetCode 779 K-th Symbol in Grammar (Python)
Medium
783
LeetCode 783 Minimum Distance Between BST Nodes (Python)
Easy
784
LeetCode 784 Letter Case Permutation (Python)
Medium
785
LeetCode 785 Is Graph Bipartite (Python)
Medium
787
LeetCode 787 Cheapest Flights Within K Stops (Python)
Medium
791
LeetCode 791 Custom Sort String (Python)
Medium
797
LeetCode 797 All Paths From Source to Target (Python)
Medium
799
LeetCode 799 Champagne Tower (Python)
Medium
804
LeetCode 804 Unique Morse Code Words (Python)
Easy
821
LeetCode 821 Shortest Distance to a Character (Python)
Easy
823
LeetCode 823 Binary Trees With Factors (Python)
Medium
824
LeetCode 824 Goat Latin (Python)
Easy
827
LeetCode 827 Making A Large Island (Python)
Hard
832
LeetCode 832 Flipping an Image (Python)
Easy
835
LeetCode 835 Image Overlap (Python)
Medium
839
LeetCode 839 Similar String Groups (Python)
Hard
841
LeetCode 841 Keys and Rooms (Python)
Medium
844
LeetCode 844 Backspace String Compare (Python)
Easy
845
LeetCode 845 Longest Mountain in Array (Python)
Medium
849
LeetCode 849 Maximize Distance to Closest Person (Python)
Medium
858
LeetCode 858 Mirror Reflection (Python)
Medium
859
LeetCode 859 Buddy Strings (Python)
Easy
863
LeetCode 863 All Nodes Distance K in Binary Tree (Python)
Medium
865
LeetCode 865 Smallest Subtree with all the Deepest Nodes (Python)
Medium
869
LeetCode 869 Reordered Power of 2 (Python)
Medium
876
LeetCode 876 Middle of the Linked List (Python)
Easy
877
LeetCode 877 Stone Game (Python)
Medium
880
LeetCode 880 Decoded String at Index (Python)
Medium
881
LeetCode 881 Boats to Save People (Python)
Medium
886
LeetCode 886 Possible Bipartition (Python)
Medium
901
LeetCode 901 Online Stock Span (Python)
Medium
902
LeetCode 902 Numbers At Most N Given Digit Set (Python)
Hard
904
LeetCode 904 Fruit Into Baskets (Python)
Medium
905
LeetCode 905 Sort Array By Parity (Python)
Easy
906
LeetCode 906 Super Palindromes (Python)
Hard
910
LeetCode 910 Smallest Range II (Python)
Medium
916
LeetCode 916 Word Subsetse (Python)
Medium
918
LeetCode 918 Maximum Sum Circular Subarray (Python)
Medium
921
LeetCode 921 Minimum Add to Make Parentheses Valid (Python)
Medium
923
LeetCode 923 3Sum With Multiplicity (Python)
Medium
924
LeetCode 924 Minimize Malware Spread (Python)
Hard
926
LeetCode 926 Flip String to Monotone Increasing (Python)
Hard
933
LeetCode 933 Number of Recent Calls (Python)
Easy
936
LeetCode 936 Stamping The Sequence (Python)
Hard
938
LeetCode 938 Range Sum of BST (Python)
Easy
941
LeetCode 941 Valid Mountain Array (Python)
Medium
946
LeetCode 946 Validate Stack Sequences (Python)
Medium
948
LeetCode 948 Bag of Tokens (Python)
Medium
949
LeetCode 949 Largest Time for Given Digits (Python)
Easy
952
LeetCode 952 Largest Component Size by Common Factor (Python)
Hard
953
LeetCode 953 Verifying an Alien Dictionary (Python)
Easy
954
LeetCode 954 Array of Doubled Pairs (Python)
Medium
957
LeetCode 957 Prison Cells After N Days (Python)
Medium
966
LeetCode 966 Vowel Spellchecker (Python)
Medium
967
LeetCode 967 Numbers With Same Consecutive Differences (Python)
Medium
968
LeetCode 968 Binary Tree Cameras (Python)
Hard
969
LeetCode 969 Pancake Sorting (Python)
Medium
971
LeetCode 971 Flip Binary Tree To Match Preorder Traversal (Python)
Medium
973
LeetCode 973 K Closest Points to Origin (Python)
Medium
977
LeetCode 977 Squares of a Sorted Array (Python)
Easy
980
LeetCode 980 Unique Paths III (Python)
Hard
983
LeetCode 983 Minimum Cost For Tickets (Python)
Medium
986
LeetCode 986 Interval List Intersections (Python)
Medium
987
LeetCode 987 Vertical Order Traversal of a Binary Tree (Python)
Hard
989
LeetCode 989 Add to Array-Form of Integer (Python)
Easy
994
LeetCode 994 Rotting Oranges (Python)
Medium
997
LeetCode 997 Find the Town Judge (Python)
Easy
1001
LeetCode 1001 Grid Illumination (Python)
Hard
1002
LeetCode 1002 Find Common Characters (Python)
Easy
1003
LeetCode 1003 Check If Word Is Valid After Substitutions (Python)
Medium
1007
LeetCode 1007 Minimum Domino Rotations For Equal Row (Python)
Medium
1008
LeetCode 1008 Construct Binary Search Tree from Preorder Traversal (Python)
Medium
1009
LeetCode 1009 Complement of Base 10 Integer (Python)
Easy
1010
LeetCode 1010 Pairs of Songs With Total Durations Divisible by 60 (Python)
Medium
1011
LeetCode 1011 Capacity To Ship Packages Within D Days (Python)
Medium
1015
LeetCode 1015 Smallest Integer Divisible by K (Python)
Medium
1020
LeetCode 1020 Number of Enclaves (Python)
Medium
1022
LeetCode 1022 Sum of Root To Leaf Binary Numbers (Python)
Easy
1026
LeetCode 1026 Maximum Difference Between Node and Ancestor (Python)
Medium
1029
LeetCode 1029 Two City Scheduling (Python)
Easy
1032
LeetCode 1032 Stream of Characters (Python)
Hard
1035
LeetCode 1035 Uncrossed Lines (Python)
Medium
1041
LeetCode 1041 Robot Bounded In Circle (Python)
Medium
1044
LeetCode 1044 Longest Duplicate Substring (Python)
Hard
1046
LeetCode 1046 Last Stone Weight (Python)
Easy
1048
LeetCode 1048 Longest String Chain (Python)
Medium
1060
LeetCode 1060 Missing Element in Sorted Array (Python)
Medium
1071
LeetCode 1071 Greatest Common Divisor of Strings (Python)
Easy
1089
LeetCode 1089 Duplicate Zeros (Python)
Easy
1091
LeetCode 1091 Shortest Path in Binary Matrix (Python)
Medium
1094
LeetCode 1094 Car Pooling (Python)
Medium
1103
LeetCode 1103 Distribute Candies to People (Python)
Easy
1129
LeetCode 1129 Shortest Path with Alternating Colors (Python)
Medium
1143
LeetCode 1143 Longest Common Subsequence (Python)
Medium
1162
LeetCode 1162 As Far from Land as Possible (Python)
Medium
1209
LeetCode 1209 Remove All Adjacent Duplicates in String II (Python)
Hard
1216
LeetCode 1216 Valid Palindrome III (Python)
Hard
1217
LeetCode 1217 Minimum Cost to Move Chips to The Same Position (Python)
Easy
1227
LeetCode 1277 Count Square Submatrices with All Ones (Python)
Medium
1232
LeetCode 1232 Check If It Is a Straight Line (Python)
Easy
1249
LeetCode 1249 Minimum Remove to Make Valid Parentheses (Python)
Medium
1254
Leetcode 1254 Number of Closed Islands (Python)
Medium
1283
LeetCode 1283 Find the Smallest Divisor Given a Threshold (Python)
Medium
1286
LeetCode 1286 Iterator for Combination (Python)
Medium
1288
LeetCode 1288 Remove Covered Intervals (Python)
Medium
1290
LeetCode 1290 Convert Binary Number in a Linked List to Integer (Python)
Easy
1291
LeetCode 1291 Sequential Digits (Python)
Medium
1295
LeetCode 1295 Find Numbers with Even Number of Digits (Python)
Easy
1302
LeetCode 1302 Deepest Leaves Sum (Python)
1305
LeetCode 1305 All Elements in Two Binary Search Trees (Python)
Medium
1306
LeetCode 1306 Jump Game III (Python)
Medium
1329
LeetCode 1329 Sort the Matrix Diagonally (Python)
Medium
1332
LeetCode 1332 Remove Palindromic Subsequences (Python)
Easy
1337
LeetCode 1337 The K Weakest Rows in a Matrix (Python)
Easy
1339
LeetCode 1339 Maximum Product of Splitted Binary Tree (Python)
Medium
1342
LeetCode 1342 Number of Steps to Reduce a Number to Zero (Python)
Easy
1344
LeetCode 1344 Angle Between Hands of a Clock (Python)
Medium
1379
LeetCode 1379 Find a Corresponding Node of a Binary Tree in a Clone of That Tree (Python)
Medium
1396
LeetCode 1396 Design Underground System (Python)
Medium
1402
LeetCode 1402 Reducing Dishes (Python)
Hard
1416
LeetCode 1416 Restore The Array (Python)
Hard
1424
LeetCode 1424 Diagonal Traverse II (Python)
Medium
1437
LeetCode 1437 Check If All 1's Are at Least Length K Places Away (Python)
Easy
1441
LeetCode 1441 Build an Array With Stack Operations (Python)
Easy
1442
LeetCode 1442 Count Triplets That Can Form Two Arrays of Equal XOR (Python)
Medium
1443
LeetCode 1443 Minimum Time to Collect All Apples in a Tree (Python)
Medium
1444
LeetCode 1444 Number of Ways of Cutting a Pizza (Python)
Hard
1446
LeetCode 1446 Consecutive Characters (Python)
Easy
1446
LeetCode 1446 Consecutive Characters (Python)
Easy
1447
LeetCode Leetcode 1447 Simplified Fractions (Python)
Medium
1448
LeetCode 1448 Count Good Nodes in Binary Tree (Python)
Medium
1449
LeetCode 1449 Form Largest Integer With Digits That Add up to Target (Python)
Hard
1450
LeetCode 1450 Number of Students Doing Homework at a Given Time (Python)
Easy
1451
LeetCode 1451 Rearrange Words in a Sentence (Python)
Medium
1452
LeetCode 1452 People Whose List of Favorite Companies Is Not a Subset of Another List (Python)
Medium
1453
LeetCode 1453 Maximum Number of Darts Inside of a Circular Dartboard (Python)
Hard
1457
LeetCode 1457 Pseudo-Palindromic Paths in a Binary Tree (Python)
Medium
1461
LeetCode 1461 Check If a String Contains All Binary Codes of Size K (Python)
Medium
1463
LeetCode 1463 Cherry Pickup II (Python)
Hard
1466
LeetCode 1466 Reorder Routes to Make All Paths Lead to the City Zero (Python)
Medium
1470
LeetCode 1470 Shuffle the Array (Python)
Easy
1475
LeetCode 1475 Final Prices With a Special Discount in a Shop (Python)
Easy
1492
LeetCode 1492 The kth Factor of n (Python)
Medium
1502
LeetCode 1502 Can Make Arithmetic Progression From Sequence (Python)
Easy
1503
LeetCode 1503 Last Moment Before All Ants Fall Out of a Plank (Python)
Medium
1510
LeetCode 1510 Stone Game IV (Python)
Hard
1512
LeetCode 1512 Number of Good Pairs (Python)
Easy
1513
LeetCode 1513 Number of Substrings With Only 1s (Python)
Medium
1514
LeetCode 1514 Path with Maximum Probability (Python)
Medium
1515
LeetCode LeetCode 1515 Best Position for a Service Centre (Python)
Hard
1523
LeetCode 1523 Count Odd Numbers in an Interval Range (Python)
Easy
1530
LeetCode 1530 Number of Good Leaf Nodes Pairs (Python)
Medium
1534
LeetCode 1534 Count Good Triplets (Python)
Easy
1535
LeetCode 1535 Find the Winner of an Array Game (Python)
Medium
1539
LeetCode 1539 Kth Missing Positive Number (Python)
Easy
1541
LeetCode 1541 Minimum Insertions to Balance a Parentheses String (Python)
Medium
1551
LeetCode 1551 Minimum Operations to Make Array Equal (Python)
Medium
1570
LeetCode 1570 Dot Product of Two Sparse Vectors (Python)
Medium
1579
LeetCode 1579 Remove Max Number of Edges to Keep Graph Fully Traversable (Python)
Hard
1609
LeetCode 1609 Even Odd Tree (Python)
Medium
1631
LeetCode 1631 Path With Minimum Effort (Python)
Medium
1632
LeetCode 1632 Rank Transform of a Matrix (Python)
Hard
1640
LeetCode 1640 Check Array Formation Through Concatenation (Python)
Easy
1641
LeetCode 1641 Count Sorted Vowel Strings (Python)
Medium
1642
LeetCode 1642 Furthest Building You Can Reach (Python)
Medium
1644
LeetCode 1644 Lowest Common Ancestor of a Binary Tree II (Python)
Medium
1646
LeetCode 1646 Get Maximum in Generated Array (Python)
Easy
1649
LeetCode 1649 Create Sorted Array through Instructions (Python)
Hard
1650
LeetCode 1650 Lowest Common Ancestor of a Binary Tree III (Python)
Medium
1657
LeetCode 1657 Determine if Two Strings Are Close (Python)
Medium
1658
LeetCode 1658 Minimum Operations to Reduce X to Zero (Python)
Medium
1662
LeetCode 1662 Check If Two String Arrays are Equivalent (Python)
Easy
1663
LeetCode 1663 Smallest String With A Given Numeric Value (Python)
Medium
1673
LeetCode 1673 Find the Most Competitive Subsequence (Python)
Medium
1675
LeetCode 1675 Minimize Deviation in Array (Python)
Hard
1675
LeetCode 1675 Minimize Deviation in Array (Python)
Hard
1679
LeetCode 1679 Max Number of K-Sum Pairs (Python)
Medium
1680
LeetCode 1680 Concatenation of Consecutive Binary Numbers (Python)
Medium
1697
LeetCode 1697 Checking Existence of Edge Length Limited Paths (Python)
Hard
1704
LeetCode 1704 Determine if String Halves Are Alike (Python)
Medium
1721
LeetCode 1721 Swapping Nodes in a Linked List (Python)
Medium
1748
LeetCode 1748 Sum of Unique Elements (Python)
Easy
1762
LeetCode 1762 Buildings With an Ocean View (Python)
Medium
1857
LeetCode 1857 Largest Color Value in a Directed Graph (Python)
Hard
2300
LeetCode 2300 Successful Pairs of Spells and Potions (Python)
Medium
2306
LeetCode 2306 Naming a Company (Python)
Hard
2316
LeetCode 2316 Count Unreachable Pairs of Nodes in an Undirected Graph (Python)
Medium
2336
LeetCode 2336 Smallest Number in Infinite Set (Python)
Medium
2405
LeetCode 2405 Optimal Partition of String (Python)
Medium
2421
LeetCode 2421 Number of Good Paths (Python)
Hard
2439
LeetCode 2439 Minimize Maximum of Array (Python)
Medium
2477
LeetCode 2477 Minimum Fuel Cost to Report to the Capital (Python)
Medium
2850
LeetCode 2850 Minimum Moves to Spread Stones Over Grid (Python)
Medium
3043
LeetCode 3043 Find the Length of the Longest Common Prefix (Python)
Medium
9999
LeetCode Cousins in Binary Tree (Python)
N/A
9999
LeetCode Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree (Python)
N/A
9999
LeetCode First Unique Number (Python)
N/A
9999
LeetCode Perform String Shifts (Python)
N/A
9999
LeetCode Leftmost Column with at Least a One (Python)
N/A
9999
LeetCode Counting Elements (Python)
N/A