001 |
Two Sum |
Python |
Java |
C++ |
Easy |
002 |
Add Two Numbers |
Python |
Java |
C++ |
Medium |
003 |
Longest Substring Without Repeating Characters |
Python |
Java |
C++ |
Medium |
004 |
Median of Two Sorted Arrays |
Python |
Java |
C++ |
Hard |
005 |
Longest Palindromic Substring |
Python |
Java |
C++ |
Medium |
006 |
ZigZag Conversion |
Python |
Java |
C++ |
Medium |
007 |
Reverse Integer |
Python |
Java |
C++ |
Easy |
008 |
String to Integer |
Python |
Java |
C++ |
Medium |
009 |
Palindrome Number |
Python |
Java |
C++ |
Easy |
010 |
Regular Expression Matching |
Python |
Java |
C++ |
Hard |
011 |
Container With Most Water |
Python |
Java |
C++ |
Medium |
012 |
Integer to Roman |
Python |
Java |
C++ |
Medium |
013 |
Roman to Integer |
Python |
Java |
C++ |
Easy |
014 |
Longest Common Prefix |
Python |
Java |
C++ |
Easy |
015 |
3Sum |
Python |
Java |
C++ |
Medium |
016 |
3Sum Closest |
Python |
Java |
C++ |
Medium |
017 |
Letter Combinations of a Phone Number |
Python |
Java |
C++ |
Medium |
018 |
4Sum |
Python |
Java |
C++ |
Medium |
019 |
Remove Nth Node From End of List |
Python |
Java |
C++ |
Medium |
020 |
Valid Parentheses |
Python |
Java |
C++ |
Easy |
021 |
Merge Two Sorted Lists |
Python |
Java |
C++ |
Easy |
022 |
Generate Parentheses |
Python |
Java |
C++ |
Medium |
023 |
Merge k Sorted Lists |
Python |
Java |
C++ |
Hard |
024 |
Swap Nodes in Pairs |
Python |
Java |
C++ |
Medium |
025 |
Reverse Nodes in k-Group |
Python |
Java |
C++ |
Hard |
026 |
Remove Duplicates from Sorted Array |
Python |
Java |
C++ |
Easy |
027 |
Remove Element |
Python |
Java |
C++ |
Easy |
028 |
Implement strStr() |
Python |
Java |
C++ |
Easy |
029 |
Divide Two Integers |
Python |
Java |
C++ |
Medium |
030 |
Substring with Concatenation of All Words |
Python |
Java |
C++ |
Hard |
031 |
Next Permutation |
Python |
Java |
C++ |
Medium |
032 |
Longest Valid Parentheses |
Python |
Java |
C++ |
Hard |
033 |
Search in Rotated Sorted Array |
Python |
Java |
C++ |
Medium |
034 |
Find First and Last Position of Element in Sorted Array |
Python |
Java |
C++ |
Medium |
035 |
Search Insert Position |
Python |
Java |
C++ |
Easy |
036 |
Valid Sudoku |
Python |
Java |
C++ |
Medium |
037 |
Sudoku Solver |
Python |
Java |
C++ |
Hard |
038 |
Count and Say |
Python |
Java |
C++ |
Easy |
039 |
Combination Sum |
Python |
Java |
C++ |
Medium |
040 |
Combination Sum II |
Python |
Java |
C++ |
Medium |
041 |
First Missing Positive |
Python |
Java |
C++ |
Hard |
042 |
Trapping Rain Water |
Python |
Java |
C++ |
Hard |
043 |
Multiply Strings |
Python |
Java |
C++ |
Medium |
044 |
Wildcard Matching |
Python |
Java |
C++ |
Hard |
045 |
Jump Game II |
Python |
Java |
C++ |
Hard |
046 |
Permutations |
Python |
Java |
C++ |
Medium |
047 |
Permutaions II |
Python |
Java |
C++ |
Medium |
048 |
Rotate Image |
Python |
Java |
C++ |
Medium |
049 |
Group Anagrams |
Python |
Java |
C++ |
Medium |
050 |
Pow(x, n) |
Python |
Java |
C++ |
Medium |
051 |
N-Queens |
Python |
Java |
C++ |
Hard |
052 |
N-Queens II |
Python |
Java |
C++ |
Hard |
053 |
Maximum Subarray |
Python |
Java |
C++ |
Easy |
054 |
Spiral Matrix |
Python |
Java |
C++ |
Medium |
055 |
Jump Game |
Python |
Java |
C++ |
Medium |
056 |
Merge Intervals |
Python |
Java |
C++ |
Medium |
057 |
Insert Interval |
Python |
|
|
Hard |
058 |
Length of Last Word |
Python |
|
|
Easy |
059 |
Spiral Matrix II |
Python |
|
|
Medium |
060 |
Permutation Sequence |
Python |
|
|
Medium |
061 |
Rotate List |
Python |
|
|
Medium |
062 |
Unique Paths |
Python |
|
|
Medium |
063 |
Unique Paths II |
Python |
|
|
Medium |
064 |
Minimum Path Sum |
Python |
|
|
Medium |
065 |
Valid Number |
Python |
|
|
Hard |
066 |
Plus One |
Python |
|
|
Easy |
067 |
Add Binary |
Python |
|
|
Easy |
068 |
Text Justification |
Python |
|
|
Hard |
069 |
Sqrt(x) |
Python |
|
|
Easy |
070 |
Climbing Stairs |
Python |
|
|
Easy |
071 |
Simplify Path |
Python |
|
|
Medium |
072 |
Edit Distance |
Python |
|
|
Hard |
073 |
Set Matrix Zeroes |
Python |
|
|
Medium |
074 |
Search a 2D Matrix |
Python |
|
|
Medium |
075 |
Sort Colors |
Python |
Java |
C++ |
Medium |
076 |
Minimum Window Substring |
Python |
|
|
Hard |
077 |
Combinations |
Python |
|
|
Medium |
078 |
Subsets |
Python |
Java |
C++ |
Medium |
079 |
Word Search |
Python |
Java |
C++ |
Medium |
080 |
Remove Duplicates from Sorted Array II |
Python |
|
|
Medium |
081 |
Search in Rotated Sorted Array II |
Python |
|
|
Medium |
082 |
Remove Duplicates from Sorted List II |
Python |
|
|
Medium |
083 |
Remove Duplicates from Sorted List |
Python |
|
|
Easy |
084 |
Largest Rectangle in Histogram |
Python |
|
|
Hard |
085 |
Maximal Rectangle |
Python |
|
|
Hard |
086 |
Partition List |
Python |
|
|
Medium |
087 |
Scramble String |
Python |
|
|
Hard |
088 |
Merge Sorted Array |
Python |
|
|
Easy |
089 |
Gray Code |
Python |
|
|
Medium |
090 |
Subsets II |
Python |
|
|
Medium |
091 |
Decode Ways |
Python |
|
|
Medium |
092 |
Reverse Linked List II |
Python |
|
|
Medium |
093 |
Restore IP Addresses |
Python |
|
|
Medium |
094 |
Binary Tree Inorder Traversal |
Python |
Java |
C++ |
Medium |
095 |
Unique Binary Search Trees II |
Python |
|
|
Medium |
096 |
Unique Binary Search Trees |
Python |
|
|
Medium |
097 |
Interleaving String |
Python |
|
|
Hard |
098 |
Validate Binary Search Tree |
Python |
|
|
Medium |
099 |
Recover Binary Search Tree |
Python |
|
|
Hard |
100 |
Same Tree |
Python |
|
|
Easy |
101 |
Symmetric Tree |
Python |
|
|
Easy |
102 |
Binary Tree Level Order Traversal |
Python |
|
|
Medium |
103 |
Binary Tree Zigzag Level Order Traversal |
Python |
|
|
Medium |
104 |
Maximum Depth of Binary Tree |
Python |
|
|
Easy |
105 |
Construct Binary Tree from Preorder and Inorder Traversal |
Python |
|
|
Medium |
106 |
Construct Binary Tree from Inorder and Postorder Traversal |
Python |
Java |
C++ |
Medium |
107 |
Binary Tree Level Order Traversal II |
Python |
|
|
Easy |
108 |
Convert Sorted Array to Binary Search Tree |
Python |
|
|
Easy |
109 |
Convert Sorted List to Binary Search Tree |
Python |
|
|
Medium |
110 |
Balanced Binary Tree |
Python |
|
|
Easy |
111 |
Minimum Depth of Binary Tree |
Python |
|
|
Easy |
112 |
Path Sum |
Python |
Java |
C++ |
Easy |
113 |
Path Sum II |
Python |
Java |
C++ |
Medium |
114 |
Flatten Binary Tree to Linked List |
Python |
|
|
Medium |
115 |
Distinct Subsequences |
Python |
|
|
Hard |
116 |
Populating Next Right Pointers in Each Node |
Python |
|
|
Medium |
117 |
Populating Next Right Pointers in Each Node II |
Python |
|
|
Medium |
118 |
Pascal's Triangle |
Python |
|
|
Easy |
119 |
Pascal's Triangle II |
Python |
|
|
Easy |
120 |
Triangle |
Python |
|
|
Medium |
121 |
Best Time to Buy and Sell Stock |
Python |
|
|
Easy |
122 |
Best Time to Buy and Sell Stock II |
Python |
|
|
Easy |
123 |
Best Time to Buy and Sell Stock III |
Python |
|
|
Hard |
124 |
Binary Tree Maximum Path Sum |
Python |
|
|
Hard |
125 |
Valid Palindrome |
Python |
|
|
Easy |
126 |
Word Ladder II |
Python |
|
|
Hard |
127 |
Word Ladder |
Python |
|
|
Medium |
128 |
Longest Consecutive Sequence |
Python |
|
|
Hard |
129 |
Sum Root to Leaf Numbers |
Python |
|
|
Medium |
130 |
Surrounded Regions |
Python |
|
|
Medium |
131 |
Palindrome Partitioning |
Python |
|
|
Medium |
132 |
Palindrome Partitioning II |
Python |
|
|
Hard |
133 |
Clone Graph |
Python |
|
|
Medium |
134 |
Gas Station |
Python |
|
|
Medium |
135 |
Candy |
Python |
|
|
Hard |
136 |
Single Number |
Python |
|
|
Easy |
137 |
Single Number II |
Python |
|
|
Medium |
138 |
Copy List with Random Pointer |
Python |
|
|
Medium |
139 |
Word Break |
Python |
|
|
Medium |
140 |
Word Break II |
Python |
|
|
Hard |
141 |
Linked List Cycle |
Python |
|
|
Easy |
142 |
Linked List Cycle II |
Python |
|
|
Medium |
143 |
Reorder List |
Python |
|
|
Medium |
144 |
Binary Tree Preorder Traversal |
Python |
|
|
Medium |
145 |
Binary Tree Postorder Traversal |
Python |
|
|
Medium |
146 |
LRU Cache |
Python |
|
|
Medium |
147 |
Insertion Sort List |
Python |
|
|
Medium |
148 |
Sort List |
Python |
|
|
Medium |
149 |
Max Points on a Line |
Python |
|
|
Hard |
150 |
Evaluate Reverse Polish Notation |
Python |
|
|
Medium |
151 |
Reverse Words in a String |
Python |
|
|
Medium |
152 |
Maximum Product Subarray |
Python |
|
|
Medium |
153 |
Find Minimum in Rotated Sorted Array |
Python |
|
|
Medium |
155 |
Min Stack |
Python |
|
|
Easy |
160 |
Intersection of Two Linked Lists |
Python |
|
|
Easy |
162 |
Find Peak Element |
Python |
|
|
Medium |
164 |
Maximum Gap |
Python |
|
|
Hard |
165 |
Compare Version Numbers |
Python |
|
|
Medium |
166 |
Fraction to Recurring Decimal |
Python |
|
|
Medium |
167 |
Two Sum II - Input array is sorted |
Python |
|
|
Easy |
168 |
Excel Sheet Column Title |
Python |
Java |
C++ |
Easy |
169 |
Majority Element |
Python |
|
|
Easy |
171 |
Excel Sheet Column Number |
Python |
|
|
Easy |
172 |
Factorial Trailing Zeroes |
Python |
|
|
Easy |
173 |
Binary Search Tree Iterator |
Python |
|
|
Medium |
174 |
Dungeon Game |
Python |
|
|
Hard |
179 |
Largest Number |
Python |
|
|
Medium |
187 |
Repeated DNA Sequences |
Python |
|
|
Medium |
188 |
Best Time to Buy and Sell Stock IV |
Python |
|
|
Hard |
189 |
Rotate Array |
Python |
|
|
Easy |
190 |
Reverse Bits |
Python |
|
|
Easy |
191 |
Number of 1 Bits |
Python |
|
|
Easy |
198 |
House Robber |
Python |
|
|
Easy |
200 |
Number of Islands |
Python |
|
|
Medium |
203 |
Remove Linked List Elements |
Python |
Java |
C++ |
Easy |
202 |
Happy Number |
Python |
|
|
Easy |
204 |
Count Primes |
Python |
|
|
Easy |
205 |
Isomorphic Strings |
Python |
|
|
Easy |
206 |
Reverse Linked List |
Python |
|
|
Easy |
207 |
Course Schedule |
Python |
|
|
Medium |
208 |
Implement Trie (Prefix Tree) |
Python |
|
|
Medium |
211 |
Design Add and Search Words Data Structure |
Python |
|
|
Medium |
212 |
Word Search II |
Python |
|
|
Hard |
213 |
House Robber II |
Python |
|
|
Medium |
215 |
Kth Largest Element in an Array |
Python |
|
|
Medium |
216 |
Combination Sum III |
Python |
|
|
Medium |
217 |
Contains Duplicate |
Python |
|
|
Easy |
219 |
Contains Duplicate II |
Python |
|
|
Easy |
220 |
Contains Duplicate III |
Python |
|
|
Medium |
221 |
Maximal Square |
Python |
|
|
Medium |
222 |
Count Complete Tree Nodes |
Python |
|
|
Medium |
223 |
Rectangle Area |
Python |
|
|
Medium |
224 |
Basic Calculator |
Python |
|
|
Hard |
226 |
Invert Binary Tree |
Python |
Java |
C++ |
Easy |
228 |
Summary Ranges |
Python |
|
|
Easy |
229 |
Majority Element II |
Python |
|
|
Medium |
230 |
Kth Smallest Element in a BST |
Python |
|
|
Easy |
231 |
Power of Two |
Python |
|
|
Easy |
232 |
Implement Queue using Stacks |
Python |
|
|
Easy |
233 |
Number of Digit One |
Python |
|
|
Hard |
234 |
Palindrome Linked List |
Python |
|
|
Easy |
235 |
Lowest Common Ancestor of a Binary Search Tree |
Python |
|
|
Easy |
236 |
Lowest Common Ancestor of a Binary Tree |
Python |
|
|
Medium |
237 |
Delete Node in a Linked List |
Python |
|
|
Easy |
238 |
Product of Array Except Self |
Python |
|
|
Medium |
239 |
Sliding Window Maximum |
Python |
|
|
Hard |
240 |
Search a 2D Matrix II |
Python |
|
|
Medium |
242 |
Valid Anagram |
Python |
|
|
Easy |
253 |
Meeting Rooms II |
Python |
|
|
Medium |
256 |
Paint House |
Python |
|
|
Medium |
257 |
Binary Tree Paths |
Python |
|
|
Easy |
258 |
Add Digits |
Python |
|
|
Easy |
260 |
Single Number III |
Python |
|
|
Medium |
264 |
Ugly Number II |
Python |
|
|
Medium |
265 |
Paint House II |
Python |
|
|
Hard |
268 |
Missing Number |
Python |
|
|
Easy |
273 |
Integer to English Words |
Python |
|
|
Hard |
274 |
H-Index |
Python |
Java |
C++ |
Medium |
275 |
H-Index II |
Python |
Java |
C++ |
Medium |
278 |
First Bad Version |
Python |
|
|
Easy |
279 |
Perfect Squares |
Python |
|
|
Medium |
282 |
Expression Add Operators |
Python |
|
|
Hard |
283 |
Move Zeroes |
Python |
|
|
Easy |
284 |
Peeking Iterator |
Python |
|
|
Medium |
287 |
Find the Duplicate Number |
Python |
|
|
Medium |
290 |
Word Pattern |
Python |
|
|
Easy |
292 |
Nim Game |
Python |
|
|
Easy |
295 |
Find Median from Data Stream |
Python |
|
|
Hard |
297 |
Serialize and Deserialize Binary Tree |
Python |
Java |
C++ |
Hard |
299 |
Bulls and Cows |
Python |
|
|
Medium |
300 |
Longest Increasing Subsequence |
Python |
|
|
Medium |
301 |
Remove Invalid Parentheses |
Python |
|
|
Hard |
303 |
Range Sum Query - Immutable |
Python |
|
|
Easy |
304 |
Range Sum Query 2D - Immutable |
Python |
|
|
Medium |
306 |
Additive Number |
Python |
|
|
Medium |
307 |
Range Sum Query - Mutable |
Python |
|
|
Medium |
309 |
Best Time to Buy and Sell Stock with Cooldown |
Python |
|
|
Medium |
310 |
Minimum Height Trees |
Python |
|
|
Medium |
312 |
Burst Balloons |
Python |
|
|
Hard |
313 |
Super Ugly Number |
Python |
|
|
Medium |
315 |
Count of Smaller Numbers After Self |
Python |
|
|
Hard |
316 |
Remove Duplicate Letters |
Python |
|
|
Medium |
318 |
Maximum Product of Word Lengths |
Python |
|
|
Medium |
319 |
Bulb Switcher |
Python |
|
|
Easy |
321 |
Create Maximum Number |
Python |
|
|
Hard |
322 |
Coin Change |
Python |
|
|
Medium |
326 |
Power of Three |
Python |
|
|
Medium |
327 |
Count of Range Sum |
Python |
|
|
Hard |
328 |
Odd Even Linked List |
Python |
|
|
Medium |
330 |
Patching Array |
Python |
|
|
Hard |
334 |
Increasing Triplet Subsequence |
Python |
|
|
Easy |
335 |
Self Crossing |
Python |
|
|
Hard |
337 |
House Robber III |
Python |
|
|
Medium |
338 |
Counting Bits |
Python |
|
|
Medium |
341 |
Flatten Nested List Iterator |
Python |
|
|
Easy |
343 |
Integer Break |
Python |
|
|
Medium |
344 |
Reverse String |
Python |
Java |
C++ |
Easy |
345 |
Reverse Vowels of a String |
Python |
|
|
Easy |
347 |
Top K Frequent Elements |
Python |
|
|
Medium |
349 |
Intersection of Two Arrays |
Python |
|
|
Easy |
350 |
Intersection of Two Arrays II |
Python |
|
|
Easy |
352 |
Data Stream as Disjoint Intervals |
Python |
|
|
Hard |
354 |
Russian Doll Envelopes |
Python |
|
|
Hard |
357 |
Count Numbers with Unique Digits |
Python |
|
|
Medium |
363 |
Max Sum of Rectangle No Larger Than K |
Python |
|
|
Hard |
367 |
Valid Perfect Square |
Python |
|
|
Easy |
371 |
Sum of Two Integers |
Python |
|
|
Easy |
372 |
Super Pow |
Python |
|
|
Medium |
373 |
Find K Pairs with Smallest Sums |
Python |
|
|
Medium |
375 |
Guess Number Higher or Lower II |
Python |
|
|
Medium |
376 |
Wiggle Subsequence |
Python |
|
|
Medium |
377 |
Combination Sum IV |
Python |
|
|
Medium |
380 |
Insert Delete GetRandom O(1) |
Python |
|
|
Medium |
381 |
Insert Delete GetRandom O(1) - Duplicates allowed |
Python |
|
|
Hard |
382 |
Linked List Random Node |
Python |
|
|
Medium |
383 |
Ransom Note |
Python |
|
|
Easy |
384 |
Shuffle an Array |
Python |
|
|
Medium |
385 |
Mini Parser |
Python |
|
|
Medium |
386 |
Lexicographical Numbers |
Python |
|
|
Medium |
387 |
First Unique Character in a String |
Python |
|
|
Easy |
388 |
Longest Absolute File Path |
Python |
|
|
Medium |
389 |
Find the Difference |
Python |
|
|
Easy |
390 |
Elimination Game |
Python |
|
|
Medium |
391 |
Perfect Rectangle |
Python |
|
|
Hard |
392 |
Is Subsequence |
Python |
|
|
Easy |
393 |
UTF-8 Validation |
Python |
|
|
Medium |
394 |
Decode String |
Python |
|
|
Medium |
395 |
Longest Substring with At Least K Repeating Characters |
Python |
|
|
Medium |
396 |
Rotate Function |
Python |
|
|
Medium |
397 |
Integer Replacement |
Python |
|
|
Medium |
398 |
Random Pick Index |
Python |
|
|
Medium |
399 |
Evaluate Division |
Python |
|
|
Medium |
400 |
Nth Digit |
Python |
|
|
Medium |
401 |
Binary Watch |
Python |
Java |
C++ |
Easy |
402 |
Remove K Digits |
Python |
|
|
Medium |
404 |
Sum of Left Leaves |
Python |
|
|
Easy |
405 |
Convert a Number to Hexadecimal |
Python |
|
|
Easy |
406 |
Queue Reconstruction by Height |
Python |
|
|
Medium |
407 |
Trapping Rain Water II |
Python |
|
|
Hard |
412 |
Fizz Buzz |
Python |
|
|
Easy |
413 |
Arithmetic Slices |
Python |
|
|
Medium |
414 |
Third Maximum Number |
Python |
|
|
Easy |
416 |
Partition Equal Subset Sum |
Python |
|
|
Medium |
417 |
Pacific Atlantic Water Flow |
Python |
|
|
Medium |
419 |
Battleships in a Board |
Python |
|
|
Medium |
420 |
Strong Password Checker |
Python |
|
|
Hard |
423 |
Reconstruct Original Digits from English |
Python |
|
|
Medium |
424 |
Longest Repeating Character Replacement |
Python |
|
|
Medium |
426 |
Convert Binary Search Tree to Sorted Doubly Linked List |
Python |
|
|
Medium |
427 |
Construct Quad Tree |
Python |
|
|
Medium |
429 |
N-ary Tree Level Order Traversal |
Python |
|
|
Medium |
430 |
Flatten a Multilevel Doubly Linked List |
Python |
|
|
Medium |
432 |
All O`one Data Structure |
Python |
|
|
Hard |
433 |
Minimum Genetic Mutation |
Python |
|
|
Medium |
434 |
Number of Segments in a String |
Python |
|
|
Easy |
435 |
Non-overlapping Intervals |
Python |
|
|
Medium |
437 |
Path Sum III |
Python |
|
|
Medium |
438 |
Find All Anagrams in a String |
Python |
|
|
Medium |
440 |
K-th Smallest in Lexicographical Order |
Python |
|
|
Hard |
441 |
Arranging Coins |
Python |
|
|
Easy |
442 |
Find All Duplicates in an Array |
Python |
|
|
Medium |
443 |
String Compression |
Python |
|
|
Medium |
445 |
Add Two Numbers II |
Python |
|
|
Medium |
446 |
Arithmetic Slices II - Subsequence |
Python |
|
|
Hard |
447 |
Number of Boomerangs |
Python |
|
|
Medium |
448 |
Find All Numbers Disappeared in an Array |
Python |
|
|
Easy |
449 |
Serialize and Deserialize BST |
Python |
|
|
Medium |
450 |
Delete Node in a BST |
Python |
|
|
Medium |
451 |
Sort Characters By Frequency |
Python |
Java |
C++ |
Easy |
452 |
Minimum Number of Arrows to Burst Balloons |
Python |
|
|
Medium |
453 |
Minimum Moves to Equal Array Elements |
Python |
|
|
Easy |
454 |
4Sum II |
Python |
|
|
Medium |
455 |
Assign Cookies |
Python |
|
|
Easy |
457 |
Circular Array Loop |
Python |
|
|
Medium |
458 |
Poor Pigs |
Python |
|
|
Hard |
459 |
Repeated Substring Pattern |
Python |
|
|
Easy |
461 |
Hamming Distance |
Python |
|
|
Easy |
462 |
Minimum Moves to Equal Array Elements II |
Python |
|
|
Medium |
463 |
Island Perimeter |
Python |
|
|
Easy |
470 |
Implement Rand10() Using Rand7() |
Python |
|
|
Medium |
472 |
Concatenated Words |
Python |
|
|
Hard |
474 |
Ones and Zeroes |
Python |
Java |
C++ |
Medium |
475 |
Heaters |
Python |
|
|
Medium |
476 |
Number Complement |
Python |
|
|
Easy |
479 |
Largest Palindrome Product |
Python |
|
|
Hard |
480 |
Sliding Window Median |
Python |
|
|
Hard |
482 |
License Key Formatting |
Python |
|
|
Easy |
485 |
Max Consecutive Ones |
Python |
|
|
Easy |
488 |
Zuma Game |
Python |
|
|
Hard |
492 |
Construct the Rectangle |
Python |
|
|
Easy |
493 |
Reverse Pairs |
Python |
|
|
Hard |
494 |
Target Sum |
Python |
|
|
Medium |
495 |
Teemo Attacking |
Python |
|
|
Easy |
496 |
Next Greater Element I |
Python |
|
|
Easy |
500 |
Keyboard Row |
Python |
|
|
Easy |
501 |
Find Mode in Binary Search Tree |
Python |
Java |
C++ |
Easy |
502 |
IPO |
Python |
|
|
Hard |
503 |
Next Greater Element II |
Python |
|
|
Medium |
504 |
Base 7 |
Python |
|
|
Easy |
506 |
Relative Ranks |
Python |
|
|
Easy |
507 |
Perfect Number |
Python |
|
|
Easy |
509 |
Fibonacci Number |
Python |
|
|
Easy |
514 |
Freedom Trail |
Python |
|
|
Hard |
516 |
Longest Palindromic Subsequence |
Python |
|
|
Medium |
517 |
Super Washing Machines |
Python |
|
|
Medium |
518 |
Coin Change 2 |
Python |
|
|
Medium |
519 |
Random Flip Matrix |
Python |
|
|
Medium |
520 |
Detect Capital |
Python |
|
|
Easy |
521 |
Longest Uncommon Subsequence I |
Python |
|
|
Easy |
524 |
Longest Word in Dictionary through Deleting |
Python |
|
|
Medium |
526 |
Beautiful Arrangement |
Python |
|
|
Medium |
528 |
Random Pick with Weight |
Python |
|
|
Medium |
530 |
Minimum Absolute Difference in BST |
Python |
|
|
Easy |
537 |
Complex Number Multiplication |
Python |
|
|
Medium |
538 |
Convert BST to Greater Tree |
Python |
Java |
C++ |
Easy |
539 |
Minimum Time Difference |
Python |
|
|
Medium |
540 |
Single Element in a Sorted Array |
Python |
|
|
Medium |
541 |
Reverse String II |
Python |
|
|
Easy |
542 |
01 Matrix |
Python |
|
|
Medium |
543 |
Diameter of Binary Tree |
Python |
|
|
Easy |
547 |
Number of Provinces |
Python |
|
|
Medium |
551 |
Student Attendance Record I |
Python |
|
|
Easy |
552 |
Student Attendance Record II |
Python |
|
|
Hard |
553 |
Optimal Division |
Python |
|
|
Medium |
556 |
Next Greater Element III |
Python |
|
|
Medium |
557 |
Reverse Words in a String III |
Python |
|
|
Easy |
559 |
Maximum Depth of N-ary Tree |
Python |
|
|
Easy |
560 |
Subarray Sum Equals K |
Python |
|
|
Medium |
561 |
Array Partition I |
Python |
|
|
Easy |
563 |
Binary Tree Tilt |
Python |
|
|
Easy |
564 |
Find the Closest Palindrome |
Python |
|
|
Hard |
566 |
Reshape the Matrix |
Python |
|
|
Easy |
567 |
Permutation in String |
Python |
|
|
Medium |
575 |
Distribute Candies |
Python |
|
|
Easy |
576 |
Out of Boundary Paths |
Python |
|
|
Medium |
581 |
Shortest Unsorted Continuous Subarray |
Python |
|
|
Medium |
583 |
Delete Operation for Two Strings |
Python |
|
|
Medium |
587 |
Erect the Fence |
Python |
|
|
Hard |
590 |
N-ary Tree Postorder Traversal |
Python |
|
|
Easy |
591 |
Tag Validator |
Python |
|
|
Hard |
594 |
Longest Harmonious Subsequence |
Python |
|
|
Easy |
598 |
Range Addition II |
Python |
|
|
Easy |
598 |
Minimum Index Sum of Two Lists |
Python |
|
|
Easy |
600 |
Non-negative Integers without Consecutive Ones |
Python |
|
|
Hard |
605 |
Can Place Flowers |
Python |
|
|
Easy |
606 |
Construct String from Binary Tree |
Python |
|
|
Easy |
611 |
Valid Triangle Number |
Python |
|
|
Medium |
617 |
Merge Two Binary Trees |
Python |
Java |
C++ |
Easy |
621 |
Task Scheduler |
Python |
|
|
Medium |
622 |
Design Circular Queue |
Python |
|
|
Medium |
628 |
Maximum Product of Three Numbers |
Python |
|
|
Easy |
629 |
K Inverse Pairs Array |
Python |
|
|
Hard |
630 |
Course Schedule III |
Python |
|
|
Hard |
637 |
Average of Levels in Binary Tree |
Python |
|
|
Easy |
638 |
Shopping Offers |
Python |
|
|
Medium |
639 |
Decode Ways II |
Python |
|
|
Hard |
643 |
Maximum Average Subarray I |
Python |
|
|
Easy |
645 |
Set Mismatch |
Python |
Java |
C++ |
Easy |
647 |
Palindromic Substrings |
Python |
|
|
Medium |
649 |
Dota2 Senate |
Python |
|
|
Medium |
650 |
2 Keys Keyboard |
Python |
|
|
Medium |
653 |
[Two Sum IV - Input is a BST(https://leetcode.com/problems/two-sum-iv-input-is-a-bst/) |
Python |
|
|
Easy |
659 |
Split Array into Consecutive Subsequences |
Python |
|
|
Medium |
661 |
Image Smoother |
Python |
|
|
Easy |
664 |
Strange Printer |
Python |
|
|
Hard |
665 |
Non-decreasing Array |
Python |
|
|
Easy |
668 |
Kth Smallest Number in Multiplication Table |
Python |
|
|
Hard |
673 |
Number of Longest Increasing Subsequence |
Python |
|
|
Medium |
674 |
Longest Continuous Increasing Subsequence |
Python |
|
|
Easy |
677 |
Map Sum Pairs |
Python |
|
|
Medium |
678 |
Valid Parenthesis String |
Python |
|
|
Medium |
682 |
Redundant Connection |
Python |
|
|
Medium |
684 |
Redundant Connection |
Python |
|
|
Medium |
685 |
Redundant Connection II |
Python |
|
|
Hard |
686 |
Repeated String Match |
Python |
|
|
Medium |
688 |
Knight Probability in Chessboard |
Python |
|
|
Medium |
689 |
Maximum Sum of 3 Non-Overlapping Subarrays |
Python |
|
|
Hard |
691 |
Stickers to Spell Word |
Python |
|
|
Hard |
693 |
Binary Number with Alternating Bits |
Python |
|
|
Easy |
695 |
Max Area of Island |
Python |
|
|
Medium |
697 |
Degree of an Array |
Python |
|
|
Easy |
700 |
Search in a Binary Search Tree |
Python |
Java |
C++ |
Easy |
701 |
Insert into a Binary Search Tree |
Python |
Java |
C++ |
Medium |
703 |
Kth Largest Element in a Stream |
Python |
|
|
Easy |
704 |
Binary Search |
Python |
|
|
Easy |
707 |
Design Linked List |
Python |
|
|
Medium |
709 |
To Lower Case |
Python |
|
|
Easy |
713 |
Subarray Product Less Than K |
Python |
|
|
Medium |
714 |
Best Time to Buy and Sell Stock with Transaction Fee |
Python |
|
|
Medium |
717 |
1-bit and 2-bit Characters |
Python |
|
|
Easy |
720 |
Longest Word in Dictionary |
Python |
|
|
Easy |
721 |
Accounts Merge |
Python |
|
|
Medium |
724 |
Find Pivot Index |
Python |
|
|
Easy |
725 |
Split Linked List in Parts |
Python |
|
|
Medium |
726 |
Number of Atoms |
Python |
Java |
C++ |
Hard |
728 |
Self Dividing Numbers |
Python |
|
|
Medium |
729 |
My Calendar I |
Python |
|
|
Medium |
733 |
Flood Fill |
Python |
|
|
Easy |
736 |
Parse Lisp Expression |
Python |
|
|
Hard |
738 |
Monotone Increasing Digits |
Python |
|
|
Medium |
739 |
Daily Temperatures |
Python |
|
|
Medium |
740 |
Delete and Earn |
Python |
|
|
Medium |
743 |
Network Delay Time |
Python |
|
|
Medium |
744 |
Find Smallest Letter Greater Than Target |
Python |
|
|
Easy |
746 |
Min Cost Climbing Stairs |
Python |
|
|
Easy |
747 |
Largest Number At Least Twice of Others |
Python |
|
|
Easy |
748 |
Shortest Completing Word |
Python |
|
|
Easy |
752 |
Open the Lock |
Python |
Java |
C++ |
Medium |
762 |
Prime Number of Set Bits in Binary Representation |
Python |
|
|
Easy |
763 |
Partition Labels |
Python |
|
|
Medium |
766 |
Toeplitz Matrix |
Python |
|
|
Easy |
765 |
Couples Holding Hands |
Python |
|
|
Hard |
767 |
Reorganize String |
Python |
|
|
Medium |
771 |
Jewels and Stones |
Python |
Java |
C++ |
Easy |
773 |
Sliding Puzzle |
Python |
Java |
C++ |
Hard |
778 |
Swim in Rising Water |
Python |
|
|
Hard |
780 |
Reaching Points |
Python |
|
|
Hard |
783 |
Minimum Distance Between BST Nodes |
Python |
|
|
Easy |
784 |
Letter Case Permutation |
Python |
|
|
Medium |
785 |
Is Graph Bipartite? |
Python |
|
|
Medium |
786 |
K-th Smallest Prime Fraction |
Python |
|
|
Hard |
787 |
Cheapest Flights Within K Stops |
Python |
|
|
Medium |
789 |
Escape The Ghosts |
Python |
|
|
Medium |
794 |
Valid Tic-Tac-Toe State |
Python |
|
|
Medium |
796 |
Rotate String |
Python |
|
|
Easy |
797 |
All Paths From Source to Target |
Python |
|
|
Medium |
798 |
Smallest Rotation with Highest Score |
Python |
|
|
Medium |
802 |
Find Eventual Safe States |
Python |
|
|
Medium |
803 |
Bricks Falling When Hit |
Python |
|
|
Hard |
804 |
Unique Morse Code Words |
Python |
|
|
Easy |
806 |
Number of Lines To Write String |
Python |
|
|
Easy |
807 |
Max Increase to Keep City Skyline |
Python |
|
|
Medium |
812 |
Largest Triangle Area |
Python |
|
|
Easy |
815 |
Bus Routes |
Python |
Java |
C++ |
Hard |
819 |
Most Common Word |
Python |
|
|
Easy |
821 |
Shortest Distance to a Character |
Python |
|
|
Easy |
824 |
Goat Latin |
Python |
|
|
Easy |
825 |
Friends Of Appropriate Ages |
Python |
|
|
Medium |
830 |
Positions of Large Groups |
Python |
|
|
Easy |
832 |
Flipping an Image |
Python |
|
|
Easy |
834 |
Sum of Distances in Tree |
Python |
|
|
Hard |
838 |
Push Dominoes |
Python |
|
|
Medium |
839 |
Similar String Groups |
Python |
|
|
Hard |
842 |
Split Array into Fibonacci Sequence |
Python |
|
|
Medium |
844 |
Backspace String Compare |
Python |
|
|
Easy |
845 |
Longest Mountain in Array |
Python |
|
|
Medium |
846 |
Hand of Straights |
Python |
|
|
Medium |
847 |
Shortest Path Visiting All Nodes |
Python |
|
|
Hard |
851 |
Loud and Rich |
Python |
|
|
Medium |
859 |
Buddy Strings |
Python |
|
|
Easy |
860 |
Lemonade Change |
Python |
|
|
Easy |
861 |
Score After Flipping Matrix |
Python |
|
|
Medium |
867 |
Transpose Matrix |
Python |
|
|
Easy |
868 |
Binary Gap |
Python |
|
|
Easy |
869 |
Reordered Power of 2 |
Python |
|
|
Medium |
873 |
Length of Longest Fibonacci Subsequence |
Python |
|
|
Medium |
876 |
Middle of the Linked List |
Python |
|
|
Easy |
881 |
Boats to Save People |
Python |
|
|
Medium |
883 |
Projection Area of 3D Shapes |
Python |
|
|
Easy |
884 |
Uncommon Words from Two Sentences |
Python |
|
|
Easy |
885 |
Spiral Matrix III |
Python |
|
|
Medium |
886 |
Possible Bipartition |
Python |
|
|
Medium |
888 |
Fair Candy Swap |
Python |
|
|
Easy |
896 |
Monotonic Array |
Python |
|
|
Easy |
905 |
Sort Array By Parity |
Python |
|
|
Easy |
908 |
Smallest Range I |
Python |
|
|
Easy |
909 |
Snakes and Ladders |
Python |
Java |
C++ |
Medium |
910 |
Smallest Range II |
Python |
|
|
Medium |
911 |
Online Election |
Python |
|
|
Medium |
913 |
Cat and Mouse |
Python |
|
|
Hard |
917 |
Reverse Only Letters |
Python |
|
|
Easy |
918 |
Maximum Sum Circular Subarray |
Python |
|
|
Medium |
922 |
Sort Array By Parity II |
Python |
|
|
Easy |
925 |
Long Pressed Name |
Python |
|
|
Easy |
930 |
Binary Subarrays With Sum |
Python |
Java |
C++ |
Medium |
931 |
Minimum Falling Path Sum |
Python |
|
|
Medium |
933 |
Number of Recent Calls |
Python |
|
|
Easy |
937 |
Reorder Data in Log Files |
Python |
|
|
Easy |
941 |
Valid Mountain Array |
Python |
|
|
Easy |
942 |
DI String Match |
Python |
|
|
Easy |
944 |
Delete Columns to Make Sorted |
Python |
|
|
Easy |
947 |
Most Stones Removed with Same Row or Column |
Python |
|
|
Medium |
953 |
Verifying an Alien Dictionary |
Python |
|
|
Easy |
954 |
Array of Doubled Pairs |
Python |
|
|
Medium |
959 |
Regions Cut By Slashes |
Python |
|
|
Medium |
961 |
N-Repeated Element in Size 2N Array |
Python |
|
|
Easy |
962 |
Maximum Width Ramp |
Python |
|
|
Medium |
963 |
Minimum Area Rectangle II |
Python |
|
|
Medium |
964 |
Least Operators to Express Number |
Python |
|
|
Hard |
965 |
Univalued Binary Tree |
Python |
|
|
Easy |
966 |
Vowel Spellchecker |
Python |
|
|
Medium |
967 |
Numbers With Same Consecutive Differences |
Python |
|
|
Medium |
968 |
Binary Tree Cameras |
Python |
|
|
Hard |
969 |
Pancake Sorting |
Python |
|
|
Medium |
970 |
Powerful Integers |
Python |
|
|
Easy |
971 |
Flip Binary Tree To Match Preorder Traversal |
Python |
|
|
Medium |
972 |
Equal Rational Numbers |
Python |
|
|
Hard |
973 |
K Closest Points to Origin |
Python |
|
|
Easy |
974 |
Subarray Sums Divisible by K |
Python |
|
|
Medium |
975 |
Odd Even Jump |
Python |
|
|
Hard |
976 |
Largest Perimeter Triangle |
Python |
|
|
Easy |
977 |
Squares of a Sorted Array |
Python |
|
|
Easy |
978 |
Longest Turbulent Subarray |
Python |
|
|
Medium |
979 |
Distribute Coins in Binary Tree |
Python |
|
|
Medium |
980 |
Unique Paths III |
Python |
|
|
Hard |
981 |
Time Based Key-Value Store |
Python |
Java |
C++ |
Medium |
982 |
Triples with Bitwise AND Equal To Zero |
Python |
|
|
Hard |
983 |
Minimum Cost For Tickets |
Python |
|
|
Medium |
984 |
String Without AAA or BBB |
Python |
|
|
Easy |
985 |
Sum of Even Numbers After Queries |
Python |
|
|
Easy |
986 |
Interval List Intersections |
Python |
|
|
Medium |
987 |
Vertical Order Traversal of a Binary Tree |
Python |
|
|
Medium |
988 |
Smallest String Starting From Leaf |
Python |
|
|
Medium |
989 |
Add to Array-Form of Integer |
Python |
|
|
Easy |
994 |
Rotting Oranges |
Python |
|
|
Medium |
995 |
Minimum Number of K Consecutive Bit Flips |
Python |
|
|
Hard |
992 |
Subarrays with K Different Integers |
Python |
|
|
Hard |
997 |
Find the Town Judge |
Python |
|
|
Easy |
998 |
Maximum Binary Tree II |
Python |
|
|
Medium |
999 |
Available Captures for Rook |
Python |
|
|
Easy |
1001 |
Grid Illumination |
Python |
|
|
Hard |
1002 |
Find Common Characters |
Python |
|
|
Easy |
1004 |
Max Consecutive Ones III |
Python |
|
|
Medium |
1005 |
Maximize Sum Of Array After K Negations |
Python |
|
|
Easy |
1008 |
Construct Binary Search Tree from Preorder Traversal |
Python |
|
|
Medium |
1009 |
Complement of Base 10 Integer |
Python |
|
|
Easy |
1014 |
Best Sightseeing Pair |
Python |
|
|
Medium |
1018 |
Binary Prefix Divisible By 5 |
Python |
|
|
Easy |
1019 |
Next Greater Node In Linked List |
Python |
|
|
Medium |
1020 |
Number of Enclaves |
Python |
|
|
Medium |
1024 |
Video Stitching |
Python |
|
|
Medium |
1027 |
Longest Arithmetic Subsequence |
Python |
|
|
Medium |
1030 |
Matrix Cells in Distance Order |
Python |
|
|
Easy |
1033 |
Moving Stones Until Consecutive |
Python |
|
|
Medium |
1034 |
Coloring A Border |
Python |
|
|
Medium |
1035 |
Uncrossed Lines |
Python |
|
|
Medium |
1036 |
Escape a Large Maze |
Python |
|
|
Hard |
1044 |
Longest Duplicate Substring |
Python |
|
|
Hard |
1046 |
Last Stone Weight |
Python |
|
|
Easy |
1052 |
Grumpy Bookstore Owner |
Python |
|
|
Medium |
1078 |
Occurrences After Bigram |
Python |
|
|
Easy |
1109 |
Corporate Flight Bookings |
Python |
|
|
Medium |
1122 |
Relative Sort Array |
Python |
|
|
Easy |
1128 |
Number of Equivalent Domino Pairs |
Python |
|
|
Easy |
1137 |
N-th Tribonacci Number |
Python |
|
|
Easy |
1143 |
Longest Common Subsequence |
Python |
|
|
Medium |
1154 |
Day of the Year |
Python |
|
|
Easy |
1178 |
Number of Valid Words for Each Puzzle |
Python |
|
|
Hard |
1185 |
Day of the Week |
Python |
|
|
Easy |
1189 |
Maximum Number of Balloons |
Python |
|
|
Easy |
1190 |
Reverse Substrings Between Each Pair of Parentheses |
Python |
|
|
Medium |
1191 |
K-Concatenation Maximum Sum |
Python |
|
|
Medium |
1202 |
Smallest String With Swaps |
Python |
|
|
Medium |
1203 |
Sort Items by Groups Respecting Dependencies |
Python |
|
|
Hard |
1207 |
Unique Number of Occurrences |
Python |
|
|
Easy |
1208 |
Get Equal Substrings Within Budget |
Python |
|
|
Medium |
1217 |
Minimum Cost to Move Chips to The Same Position |
Python |
|
|
Easy |
1218 |
Longest Arithmetic Subsequence of Given Difference |
Python |
|
|
Medium |
1219 |
Path with Maximum Gold |
Python |
|
|
Medium |
1220 |
Count Vowels Permutation |
Python |
|
|
Hard |
1221 |
Split a String in Balanced Strings |
Python |
|
|
Easy |
1232 |
Check If It Is a Straight Line |
Python |
|
|
Easy |
1239 |
Maximum Length of a Concatenated String with Unique Characters |
Python |
Java |
C++ |
Medium |
1277 |
Count Square Submatrices with All Ones |
Python |
|
|
Medium |
1281 |
Subtract the Product and Sum of Digits of an Integer |
Python |
|
|
Easy |
1290 |
Convert Binary Number in a Linked List to Integer |
Python |
|
|
Easy |
1305 |
All Elements in Two Binary Search Trees |
Python |
|
|
Medium |
1309 |
Decrypt String from Alphabet to Integer Mapping |
Python |
|
|
Easy |
1314 |
Matrix Block Sum |
Python |
|
|
Medium |
1319 |
Number of Operations to Make Network Connected |
Python |
|
|
Medium |
1332 |
Remove Palindromic Subsequences |
Python |
|
|
Easy |
1333 |
Filter Restaurants by Vegan-Friendly, Price and Distance |
Python |
|
|
Medium |
1334 |
Find the City With the Smallest Number of Neighbors at a Threshold Distance |
Python |
|
|
Medium |
1337 |
The K Weakest Rows in a Matrix |
Python |
|
|
Easy |
1342 |
Number of Steps to Reduce a Number to Zero |
Python |
|
|
Easy |
1343 |
Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold |
Python |
|
|
Medium |
1344 |
Angle Between Hands of a Clock |
Python |
|
|
Medium |
1345 |
Jump Game IV |
Python |
|
|
Hard |
1356 |
Sort Integers by The Number of 1 Bits |
Python |
|
|
Easy |
1365 |
How Many Numbers Are Smaller Than the Current Number |
Python |
|
|
Easy |
1367 |
Linked List in Binary Tree |
Python |
|
|
Medium |
1370 |
Increasing Decreasing String |
Python |
|
|
Easy |
1376 |
Time Needed to Inform All Employees |
Python |
|
|
Medium |
1380 |
Lucky Numbers in a Matrix |
Python |
|
|
Easy |
1388 |
Pizza With 3n Slices |
Python |
|
|
Hard |
1403 |
Minimum Subsequence in Non-Increasing Order |
Python |
|
|
Easy |
1404 |
Number of Steps to Reduce a Number in Binary Representation to One |
Python |
|
|
Medium |
1405 |
Longest Happy String |
Python |
|
|
Medium |
1413 |
Minimum Value to Get Positive Step by Step Sum |
Python |
|
|
Easy |
1414 |
Find the Minimum Number of Fibonacci Numbers Whose Sum Is K |
Python |
|
|
Medium |
1415 |
The k-th Lexicographical String of All Happy Strings of Length n |
Python |
|
|
Medium |
1418 |
Display Table of Food Orders in a Restaurant |
Python |
Java |
C++ |
Medium |
1423 |
Maximum Points You Can Obtain from Cards |
Python |
|
|
Medium |
1436 |
Destination City |
Python |
|
|
Easy |
1438 |
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit |
Python |
|
|
Medium |
1446 |
Consecutive Characters |
Python |
|
|
Easy |
1447 |
Simplified Fractions |
Python |
|
|
Medium |
1448 |
Count Good Nodes in Binary Tree |
Python |
|
|
Medium |
1480 |
Running Sum of 1d Array |
Python |
|
|
Easy |
1489 |
Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree |
Python |
|
|
Hard |
1491 |
Average Salary Excluding the Minimum and Maximum Salary |
Python |
|
|
Easy |
1502 |
Can Make Arithmetic Progression From Sequence |
Python |
|
|
Easy |
1518 |
Water Bottles |
Python |
|
|
Easy |
1523 |
Count Odd Numbers in an Interval Range |
Python |
|
|
Easy |
1534 |
Count Good Triplets |
Python |
|
|
Easy |
1535 |
Find the Winner of an Array Game |
Python |
|
|
Medium |
1536 |
Minimum Swaps to Arrange a Binary Grid |
Python |
|
|
Medium |
1537 |
Get the Maximum Score |
Python |
|
|
Hard |
1567 |
Maximum Length of Subarray With Positive Product |
Python |
|
|
Medium |
1572 |
Matrix Diagonal Sum |
Python |
|
|
Easy |
1576 |
Replace All ?'s to Avoid Consecutive Repeating Characters |
Python |
|
|
Easy |
1579 |
Remove Max Number of Edges to Keep Graph Fully Traversable |
Python |
|
|
Hard |
1582 |
Special Positions in a Binary Matrix |
Python |
|
|
Easy |
1583 |
Count Unhappy Friends |
Python |
|
|
Medium |
1584 |
Min Cost to Connect All Points |
Python |
|
|
Medium |
1585 |
Check If String Is Transformable With Substring Sort Operations |
Python |
|
|
Hard |
1588 |
Sum of All Odd Length Subarrays |
Python |
|
|
Easy |
1592 |
Rearrange Spaces Between Words |
Python |
|
|
Easy |
1593 |
Split a String Into the Max Number of Unique Substrings |
Python |
|
|
Medium |
1594 |
Maximum Non Negative Product in a Matrix |
Python |
|
|
Medium |
1595 |
Minimum Cost to Connect Two Groups of Points |
Python |
|
|
Hard |
1598 |
Crawler Log Folder |
Python |
|
|
Easy |
1599 |
Maximum Profit of Operating a Centennial Wheel |
Python |
|
|
Medium |
1600 |
Throne Inheritance |
Python |
Java |
C++ |
Medium |
1601 |
Maximum Number of Achievable Transfer Requests |
Python |
|
|
Hard |
1603 |
Design Parking System |
Python |
|
|
Easy |
1606 |
Find Servers That Handled Most Number of Requests |
Python |
|
|
Hard |
1608 |
Special Array With X Elements Greater Than or Equal X |
Python |
|
|
Easy |
1609 |
Even Odd Tree |
Python |
|
|
Medium |
1610 |
Maximum Number of Visible Points |
Python |
|
|
Hard |
1614 |
Maximum Nesting Depth of the Parentheses |
Python |
|
|
Easy |
1615 |
Maximal Network Rank |
Python |
|
|
Medium |
1616 |
Split Two Strings to Make Palindrome |
Python |
|
|
Medium |
1617 |
Count Subtrees With Max Distance Between Cities |
Python |
|
|
Hard |
1629 |
Slowest Key |
Python |
|
|
Easy |
1630 |
Arithmetic Subarrays |
Python |
|
|
Medium |
1631 |
Path With Minimum Effort |
Python |
|
|
Medium |
1632 |
Rank Transform of a Matrix |
Python |
|
|
Hard |
1646 |
Get Maximum in Generated Array |
Python |
|
|
Easy |
1672 |
Richest Customer Wealth |
Python |
|
|
Easy |
1678 |
Goal Parser Interpretation |
Python |
|
|
Easy |
1688 |
Count of Matches in Tournament |
Python |
|
|
Easy |
1689 |
Partitioning Into Minimum Number Of Deci-Binary Numbers |
Python |
|
|
Medium |
1690 |
Stone Game VII |
Python |
|
|
Medium |
1705 |
Maximum Number of Eaten Apples |
Python |
|
|
Medium |
1706 |
Where Will the Ball Fall |
Python |
|
|
Medium |
1711 |
Count Good Meals |
Python |
Java |
C++ |
Medium |
1716 |
Calculate Money in Leetcode Bank |
Python |
|
|
Easy |
1717 |
Maximum Score From Removing Substrings |
Python |
|
|
Medium |
1718 |
Construct the Lexicographically Largest Valid Sequence |
Python |
|
|
Medium |
1719 |
Number Of Ways To Reconstruct A Tree |
Python |
|
|
Hard |
1725 |
Number Of Rectangles That Can Form The Largest Square |
Python |
|
|
Easy |
1726 |
Tuple with Same Product |
Python |
|
|
Medium |
1727 |
Largest Submatrix With Rearrangements |
Python |
|
|
Medium |
1728 |
Cat and Mouse II |
Python |
|
|
Hard |
1748 |
Sum of Unique Elements |
Python |
|
|
Easy |
1749 |
Maximum Absolute Sum of Any Subarray |
Python |
|
|
Medium |
1750 |
Minimum Length of String After Deleting Similar Ends |
Python |
|
|
Medium |
1763 |
Longest Nice Substring |
Python |
|
|
Easy |
1764 |
Form Array by Concatenating Subarrays of Another Array |
Python |
|
|
Medium |
1765 |
Map of Highest Peak |
Python |
|
|
Medium |
1768 |
Merge Strings Alternately |
Python |
|
|
Easy |
1779 |
Find Nearest Point That Has the Same X or Y Coordinate |
Python |
|
|
Easy |
1790 |
Check if One String Swap Can Make Strings Equal |
Python |
|
|
Easy |
1791 |
Find Center of Star Graph |
Python |
|
|
Easy |
1797 |
Design Authentication Manager |
Python |
|
|
Medium |
1816 |
Truncate Sentence |
Python |
|
|
Easy |
1818 |
Minimum Absolute Sum Difference |
Python |
|
|
Medium |
1822 |
Sign of the Product of an Array |
Python |
|
|
Easy |
1823 |
Find the Winner of the Circular Game |
Python |
|
|
Medium |
1833 |
Maximum Ice Cream Bars |
Python |
Java |
C++ |
Medium |
1845 |
Seat Reservation Manager |
Python |
|
|
Medium |
1846 |
Maximum Element After Decreasing and Rearranging |
Python |
|
|
Medium |
1886 |
Determine Whether Matrix Can Be Obtained By Rotation |
Python |
|
|
Easy |
1894 |
Find the Student that Will Replace the Chalk |
Python |
|
|
Medium |
1984 |
Minimum Difference Between Highest and Lowest of K Scores |
Python |
|
|
Easy |
1985 |
Find the Kth Largest Integer in the Array |
Python |
|
|
Medium |
1986 |
Minimum Number of Work Sessions to Finish the Tasks |
Python |
|
|
Medium |
1994 |
The Number of Good Subsets |
Python |
|
|
Hard |
1995 |
Count Special Quadruplets |
Python |
|
|
Easy |
1996 |
The Number of Weak Characters in the Game |
Python |
|
|
Medium |
1997 |
First Day Where You Have Been in All the Rooms |
Python |
|
|
Medium |
2000 |
Reverse Prefix of Word |
Python |
|
|
Easy |
2001 |
Number of Pairs of Interchangeable Rectangles |
Python |
|
|
Medium |
2002 |
Maximum Product of the Length of Two Palindromic Subsequences |
Python |
|
|
Medium |
2006 |
Count Number of Pairs With Absolute Difference K |
Python |
|
|
Easy |
2007 |
Find Original Array From Doubled Array |
Python |
|
|
Medium |
2008 |
Maximum Earnings From Taxi |
Python |
|
|
Medium |
2011 |
Final Value of Variable After Performing Operations |
Python |
|
|
Easy |
2012 |
Sum of Beauty in the Array |
Python |
|
|
Medium |
2013 |
Detect Squares |
Python |
|
|
Medium |
2016 |
Maximum Difference Between Increasing Elements |
Python |
|
|
Easy |
2022 |
Convert 1D Array Into 2D Array |
Python |
|
|
Easy |
2024 |
Maximize the Confusion of an Exam |
Python |
|
|
Medium |
2027 |
Minimum Moves to Convert String |
Python |
|
|
Easy |
2028 |
Find Missing Observations |
Python |
|
|
Medium |
2029 |
Stone Game IX |
Python |
|
|
Medium |
2032 |
Two Out of Three |
Python |
|
|
Easy |
2033 |
Minimum Operations to Make a Uni-Value Grid |
Python |
|
|
Medium |
2034 |
Stock Price Fluctuation |
Python |
|
|
Medium |
2038 |
Remove Colored Pieces if Both Neighbors are the Same Color |
Python |
|
|
Medium |
2039 |
The Time When the Network Becomes Idle |
Python |
|
|
Medium |
2043 |
Simple Bank System |
Python |
|
|
Medium |
2044 |
Count Number of Maximum Bitwise-OR Subsets |
Python |
|
|
Medium |
2045 |
Second Minimum Time to Reach Destination |
Python |
|
|
Hard |
2047 |
Number of Valid Words in a Sentence |
Python |
|
|
Easy |
2048 |
Next Greater Numerically Balanced Number |
Python |
|
|
Medium |
2049 |
Count Nodes With the Highest Score |
Python |
|
|
Medium |
2055 |
Plates Between Candles |
Python |
|
|
Medium |
2094 |
Finding 3-Digit Even Numbers |
Python |
|
|
Easy |
2095 |
Delete the Middle Node of a Linked List |
Python |
|
|
Medium |
2096 |
Step-By-Step Directions From a Binary Tree Node to Another |
Python |
|
|
Medium |
2099 |
Find Subsequence of Length K With the Largest Sum |
Python |
|
|
Easy |
2100 |
Find Good Days to Rob the Bank |
Python |
|
|
Medium |
2101 |
Detonate the Maximum Bombs |
Python |
|
|
Medium |
2102 |
Sequentially Ordinal Rank Tracker |
Python |
|
|
Hard |
2103 |
Rings and Rods |
Python |
|
|
Easy |
2104 |
Sum of Subarray Ranges |
Python |
|
|
Medium |
2105 |
Watering Plants II |
Python |
|
|
Medium |
2106 |
Maximum Fruits Harvested After at Most K Steps |
Python |
|
|
Hard |
2108 |
Find First Palindromic String in the Array |
Python |
|
|
Easy |
2109 |
Adding Spaces to a String |
Python |
|
|
Medium |
2110 |
Number of Smooth Descent Periods of a Stock |
Python |
|
|
Medium |
2111 |
Minimum Operations to Make the Array K-Increasing |
Python |
|
|
Hard |