1 |
Two Sum |
C++ C++ |
Easy |
2 |
Add Two Numbers |
C++ C++ |
Medium |
3 |
Longest Substring Without Repeating Characters |
C++ C++ |
Medium |
5 |
Longest Palindromic Substring |
C++ |
Medium |
6 |
Zigzag Conversion |
C++ |
Medium |
7 |
Reverse Integer |
C++ |
Medium |
8 |
String to Integer (atoi) |
C++ |
Medium |
9 |
Palindrome Number |
C++ |
Easy |
11 |
Container With Most Water |
C++ |
Medium |
12 |
Integer to Roman |
C++ C++ |
Medium |
13 |
Roman to Integer |
C++ |
Easy |
14 |
Longest Common Prefix |
C++ C++ |
Easy |
15 |
3Sum |
C++ C++ |
Medium |
16 |
3Sum Closest |
C++ |
Medium |
17 |
Letter Combinations of a Phone Number |
C++ C++ |
Medium |
18 |
4Sum |
C++ |
Medium |
19 |
Remove Nth Node From End of List |
C++ C++ |
Medium |
20 |
Valid Parentheses |
C++ C++ |
Easy |
21 |
Merge Two Sorted Lists |
C++ C++ C++ |
Easy |
22 |
Generate Parentheses |
C++ C++ C++ C++ |
Medium |
23 |
Merge k Sorted Lists |
C++ C++ C++ C++ C++ C++ |
Hard |
24 |
Swap Nodes in Pairs |
C++ C++ C++ C++ |
Medium |
26 |
Remove Duplicates from Sorted Array |
C++ |
Easy |
27 |
Remove Element |
C++ C++ |
Easy |
28 |
Find the Index of the First Occurrence in a String |
C++ C++ |
Medium |
31 |
Next Permutation |
C++ |
Medium |
33 |
Search in Rotated Sorted Array |
C++ |
Medium |
34 |
Find First and Last Position of Element in Sorted Array |
C++ |
Medium |
35 |
Search Insert Position |
C++ C++ |
Easy |
36 |
Valid Sudoku |
C++ |
Medium |
38 |
Count and Say |
C++ |
Medium |
39 |
Combination Sum |
C++ |
Medium |
40 |
Combination Sum II |
C++ |
Medium |
41 |
First Missing Positive |
C++ C++ |
Hard |
42 |
Trapping Rain Water |
C++ |
Hard |
43 |
Multiply Strings |
C++ |
Medium |
46 |
Permutations |
C++ |
Medium |
47 |
Permutations II |
C++ |
Medium |
48 |
Rotate Image |
C++ C++ C++ |
Medium |
49 |
Group Anagrams |
C++ C++ |
Medium |
50 |
Pow(x, n) |
C++ |
Medium |
53 |
Maximum Subarray |
C++ C++ |
Easy |
54 |
Spiral Matrix |
C++ C++ |
Medium |
55 |
Jump Game |
C++ |
Medium |
56 |
Merge Intervals |
C++ |
Medium |
57 |
Insert Interval |
C++ C++ |
Medium |
58 |
Length of Last Word |
C++ |
Easy |
59 |
Spiral Matrix II |
C++ |
Medium |
61 |
Rotate List |
C++ |
Medium |
62 |
Unique Paths |
C++ |
Medium |
63 |
Unique Paths II |
C++ |
Medium |
64 |
Minimum Path Sum |
C++ C++ C++ C++ |
Medium |
66 |
Plus One |
C++ |
Easy |
67 |
Add Binary |
C++ |
Easy |
69 |
Sqrt(x) |
C++ |
Easy |
70 |
Climbing Stairs |
C++ C++ |
Easy |
71 |
Simplify Path |
C++ C++ |
Medium |
72 |
Edit Distance |
C++ C++ |
Hard |
73 |
Set Matrix Zeroes |
C++ |
Medium |
74 |
Search a 2D Matrix |
C++ C++ C++ |
Medium |
75 |
Sort Colors |
C++ |
Medium |
76 |
Minimum Window Substring |
C++ C++ |
Hard |
77 |
Combinations |
C++ |
Medium |
78 |
Subsets |
C++ C++ |
Medium |
79 |
Word Search |
C++ |
Medium |
80 |
Remove Duplicates from Sorted Array II |
C++ C++ C++ |
Medium |
81 |
Search in Rotated Sorted Array II |
C++ |
Medium |
82 |
Remove Duplicates from Sorted List II |
C++ C++ C++ |
Medium |
83 |
Remove Duplicates from Sorted List |
C++ C++ C++ |
Easy |
84 |
Largest Rectangle in Histogram |
C++ |
Hard |
86 |
Partition List |
C++ |
Medium |
88 |
Merge Sorted Array |
C++ |
Easy |
89 |
Gray Code |
C++ C++ C++ |
Medium |
90 |
Subsets II |
C++ C++ C++ |
Medium |
91 |
Decode Ways |
C++ |
Medium |
92 |
Reverse Linked List II |
C++ C++ C++ |
Medium |
93 |
Restore IP Addresses |
C++ |
Medium |
94 |
Binary Tree Inorder Traversal |
C++ |
Easy |
96 |
Unique Binary Search Trees |
C++ |
Medium |
97 |
Interleaving String |
C++ |
Medium |
98 |
Validate Binary Search Tree |
C++ C++ |
Medium |
99 |
Recover Binary Search Tree |
C++ C++ C++ |
Medium |
100 |
Same Tree |
C++ |
Easy |
101 |
Symmetric Tree |
C++ C++ |
Easy |
102 |
Binary Tree Level Order Traversal |
C++ |
Medium |
103 |
Binary Tree Zigzag Level Order Traversal |
C++ |
Medium |
104 |
Maximum Depth of Binary Tree |
C++ C++ C++ |
Easy |
105 |
Construct Binary Tree from Preorder and Inorder Traversal |
C++ |
Medium |
106 |
Construct Binary Tree from Inorder and Postorder Traversal |
C++ C++ |
Medium |
107 |
Binary Tree Level Order Traversal II |
C++ |
Medium |
108 |
Convert Sorted Array to Binary Search Tree |
C++ |
Easy |
109 |
Convert Sorted List to Binary Search Tree |
C++ C++ C++ |
Medium |
110 |
Balanced Binary Tree |
C++ |
Easy |
111 |
Minimum Depth of Binary Tree |
C++ |
Easy |
112 |
Path Sum |
C++ |
Easy |
113 |
Path Sum II |
C++ C++ |
Medium |
114 |
Flatten Binary Tree to Linked List |
C++ |
Medium |
116 |
Populating Next Right Pointers in Each Node |
C++ C++ |
Medium |
117 |
Populating Next Right Pointers in Each Node II |
C++ C++ |
Medium |
118 |
Pascal's Triangle |
C++ |
Easy |
120 |
Triangle |
C++ |
Medium |
121 |
Best Time to Buy and Sell Stock |
C++ C++ C++ |
Easy |
122 |
Best Time to Buy and Sell Stock II |
C++ |
Medium |
123 |
Best Time to Buy and Sell Stock III |
C++ |
Hard |
124 |
Binary Tree Maximum Path Sum |
C++ |
Hard |
125 |
Valid Palindrome |
C++ |
Easy |
127 |
Word Ladder |
C++ |
Hard |
128 |
Longest Consecutive Sequence |
C++ C++ |
Medium |
129 |
Sum Root to Leaf Numbers |
C++ |
Medium |
130 |
Surrounded Regions |
C++ |
Medium |
131 |
Palindrome Partitioning |
C++ |
Medium |
133 |
Clone Graph |
C++ C++ C++ |
Medium |
134 |
Gas Station |
C++ |
Medium |
135 |
Candy |
C++ |
Hard |
136 |
Single Number |
C++ C++ C++ C++ |
Easy |
137 |
Single Number II |
C++ |
Medium |
138 |
Copy List with Random Pointer |
C++ C++ |
Medium |
139 |
Word Break |
C++ |
Medium |
141 |
Linked List Cycle |
C++ C++ |
Easy |
142 |
Linked List Cycle II |
C++ C++ |
Medium |
143 |
Reorder List |
C++ |
Medium |
144 |
Binary Tree Preorder Traversal |
C++ |
Easy |
145 |
Binary Tree Postorder Traversal |
C++ |
Easy |
146 |
LRU Cache |
C++ |
Medium |
147 |
Insertion Sort List |
C++ |
Medium |
148 |
Sort List |
C++ C++ |
Medium |
149 |
Max Points on a Line |
C++ |
Hard |
151 |
Reverse Words in a String |
C++ |
Medium |
152 |
Maximum Product Subarray |
C++ |
Medium |
153 |
Find Minimum in Rotated Sorted Array |
C++ |
Medium |
155 |
Min Stack |
C++ |
Easy |
160 |
Intersection of Two Linked Lists |
C++ C++ |
Easy |
162 |
Find Peak Element |
C++ C++ |
Medium |
165 |
Compare Version Numbers |
C++ |
Medium |
167 |
Two Sum II - Input array is sorted |
C++ C++ C++ |
Medium |
168 |
Excel Sheet Column Title |
C++ |
Easy |
169 |
Majority Element |
C++ C++ C++ C++ |
Easy |
171 |
Excel Sheet Column Number |
C++ |
Easy |
173 |
Binary Search Tree Iterator |
C++ C++ C++ C++ |
Medium |
179 |
Largest Number |
C++ |
Medium |
188 |
Best Time to Buy and Sell Stock IV |
C++ |
Hard |
189 |
Rotate Array |
C++ |
Medium |
191 |
Number of 1 Bits |
C++ C++ |
Easy |
198 |
House Robber |
C++ |
Medium |
199 |
Binary Tree Right Side View |
C++ C++ C++ |
Medium |
200 |
Number of Islands |
C++ C++ |
Medium |
202 |
Happy Number |
C++ |
Easy |
203 |
Remove Linked List Elements |
C++ C++ |
Easy |
204 |
Count Primes |
C++ |
Medium |
205 |
Isomorphic Strings |
C++ C++ |
Easy |
206 |
Reverse Linked List |
C++ C++ C++ |
Easy |
207 |
Course Schedule |
C++ C++ |
Medium |
208 |
Implement Trie (Prefix Tree) |
C++ C++ |
Medium |
209 |
Minimum Size Subarray Sum |
C++ |
Medium |
210 |
Course Schedule II |
C++ C++ C++ |
Medium |
211 |
Design Add and Search Words Data Structure |
C++ |
Medium |
212 |
Word Search II |
C++ C++ |
Hard |
213 |
House Robber II |
C++ |
Medium |
215 |
Kth Largest Element in an Array |
C++ C++ |
Medium |
216 |
Combination Sum III |
C++ |
Medium |
217 |
Contains Duplicate |
C++ C++ C++ |
Easy |
219 |
Contains Duplicate II |
C++ |
Easy |
220 |
Contains Duplicate III |
C++ |
Medium |
221 |
Maximal Square |
C++ |
Medium |
222 |
Count Complete Tree Nodes |
C++ C++ C++ |
Medium |
225 |
Implement Stack using Queues |
C++ C++ C++ |
Easy |
226 |
Invert Binary Tree |
C++ C++ C++ |
Easy |
228 |
Summary Ranges |
C++ |
Easy |
229 |
Majority Element II |
C++ C++ |
Medium |
230 |
Kth Smallest Element in a BST |
C++ C++ C++ |
Medium |
231 |
Power of Two |
C++ |
Easy |
232 |
Implement Queue using Stacks |
C++ |
Easy |
234 |
Palindrome Linked List |
C++ C++ |
Easy |
235 |
Lowest Common Ancestor of a Binary Search Tree |
C++ C++ |
Medium |
236 |
Lowest Common Ancestor of a Binary Tree |
C++ |
Medium |
237 |
Delete Node in a Linked List |
C++ C++ |
Medium |
238 |
Product of Array Except Self |
C++ C++ |
Medium |
239 |
Sliding Window Maximum |
C++ |
Hard |
240 |
Search a 2D Matrix II |
C++ |
Medium |
242 |
Valid Anagram |
C++ |
Easy |
257 |
Binary Tree Paths |
C++ |
Easy |
258 |
Add Digits |
C++ C++ C++ |
Easy |
260 |
Single Number III |
C++ C++ |
Medium |
263 |
Ugly Number |
C++ |
Easy |
268 |
Missing Number |
C++ C++ C++ |
Easy |
270 |
Closest Binary Search Tree Value |
C++ C++ |
Easy |
274 |
H-Index |
C++ C++ |
Medium |
275 |
H-Index II |
C++ |
Medium |
277 |
Find the Celebrity |
C++ |
Medium |
278 |
First Bad Version |
C++ |
Easy |
283 |
Move Zeroes |
C++ |
Easy |
284 |
Peeking Iterator |
C++ |
Medium |
285 |
Inorder Successor in BST |
C++ C++ |
Medium |
286 |
Walls and Gates |
C++ C++ |
Medium |
287 |
Find the Duplicate Number |
C++ C++ C++ C++ |
Medium |
289 |
Game of Life |
C++ |
Medium |
290 |
Word Pattern |
C++ C++ |
Easy |
292 |
Nim Game |
C++ |
Easy |
297 |
Serialize and Deserialize Binary Tree |
C++ |
Hard |
300 |
Longest Increasing Subsequence |
C++ |
Medium |
303 |
Range Sum Query - Immutable |
C++ |
Easy |
304 |
Range Sum Query 2D - Immutable |
C++ |
Medium |
307 |
Range Sum Query - Mutable |
C++ C++ |
Medium |
309 |
Best Time to Buy and Sell Stock with Cooldown |
C++ |
Medium |
312 |
Burst Balloons |
C++ C++ |
Hard |
316 |
Remove Duplicate Letters |
C++ C++ C++ |
Medium |
322 |
Coin Change |
C++ |
Medium |
323 |
Number of Connected Components in an Undirected Graph |
C++ C++ C++ |
Medium |
326 |
Power of Three |
C++ |
Easy |
328 |
Odd Even Linked List |
C++ C++ |
Medium |
329 |
Longest Increasing Path in a Matrix |
C++ |
Hard |
331 |
Verify Preorder Serialization of a Binary Tree |
C++ |
Medium |
334 |
Increasing Triplet Subsequence |
C++ C++ C++ |
Medium |
338 |
Counting Bits |
C++ C++ C++ |
Easy |
341 |
Flatten Nested List Iterator |
C++ C++ |
Medium |
342 |
Power of Four |
C++ |
Easy |
343 |
Integer Break |
C++ C++ |
Medium |
344 |
Reverse String |
C++ C++ |
Easy |
345 |
Reverse Vowels of a String |
C++ C++ |
Easy |
347 |
Top K Frequent Elements |
C++ C++ C++ |
Medium |
349 |
Intersection of Two Arrays |
C++ |
Easy |
350 |
Intersection of Two Arrays II |
C++ |
Easy |
352 |
Data Stream as Disjoint Intervals |
C++ |
Hard |
366 |
Find Leaves of Binary Tree |
C++ |
Medium |
367 |
Valid Perfect Square |
C++ |
Easy |
371 |
Sum of Two Integers |
C++ |
Medium |
373 |
Find K Pairs with Smallest Sums |
C++ |
Medium |
374 |
Guess Number Higher or Lower |
C++ C++ |
Easy |
376 |
Wiggle Subsequence |
C++ |
Medium |
377 |
Combination Sum IV |
C++ |
Medium |
378 |
Kth Smallest Element in a Sorted Matrix |
C++ |
Medium |
380 |
Insert Delete GetRandom O(1) |
C++ C++ |
Medium |
382 |
Linked List Random Node |
C++ C++ |
Medium |
383 |
Ransom Note |
C++ C++ |
Easy |
384 |
Shuffle an Array |
C++ |
Medium |
385 |
Mini Parser |
C++ |
Medium |
387 |
First Unique Character in a String |
C++ C++ |
Easy |
389 |
Find the Difference |
C++ C++ C++ C++ C++ |
Easy |
390 |
Elimination Game |
C++ |
Medium |
392 |
Is Subsequence |
C++ C++ |
Easy |
394 |
Decode String |
C++ |
Medium |
396 |
Rotate Function |
C++ |
Medium |
397 |
Integer Replacement |
C++ |
Medium |
399 |
Evaluate Division |
C++ |
Medium |
402 |
Remove K Digits |
C++ |
Medium |
404 |
Sum of Left Leaves |
C++ |
Easy |
406 |
Queue Reconstruction by Height |
C++ |
Medium |
409 |
Longest Palindrome |
C++ |
Easy |
410 |
Split Array Largest Sum |
C++ |
Hard |
412 |
Fizz Buzz |
C++ |
Easy |
413 |
Arithmetic Slices |
C++ C++ C++ |
Medium |
414 |
Third Maximum Number |
C++ C++ |
Easy |
415 |
Add Strings |
C++ |
Easy |
417 |
Pacific Atlantic Water Flow |
C++ |
Medium |
419 |
Battleships in a Board |
C++ C++ |
Medium |
421 |
Maximum XOR of Two Numbers in an Array |
C++ |
Medium |
424 |
Longest Repeating Character Replacement |
C++ |
Medium |
426 |
Convert Binary Search Tree to Sorted Doubly Linked List |
C++ |
Medium |
429 |
N-ary Tree Level Order Traversal |
C++ |
Medium |
430 |
Flatten a Multilevel Doubly Linked List |
C++ |
Medium |
433 |
Minimum Genetic Mutation |
C++ |
Medium |
434 |
Number of Segments in a String |
C++ |
Easy |
435 |
Non-overlapping Intervals |
C++ |
Medium |
437 |
Path Sum III |
C++ C++ |
Medium |
438 |
Find All Anagrams in a String |
C++ C++ |
Medium |
441 |
Arranging Coins |
C++ C++ |
Easy |
442 |
Find All Duplicates in an Array |
C++ |
Medium |
445 |
Add Two Numbers II |
C++ |
Medium |
448 |
Find All Numbers Disappeared in an Array |
C++ C++ |
Easy |
449 |
Serialize and Deserialize BST |
C++ |
Medium |
450 |
Delete Node in a BST |
C++ |
Medium |
451 |
Sort Characters By Frequency |
C++ C++ C++ |
Medium |
452 |
Minimum Number of Arrows to Burst Balloons |
C++ C++ |
Medium |
453 |
Minimum Moves to Equal Array Elements |
C++ |
Medium |
454 |
4Sum II |
C++ |
Medium |
455 |
Assign Cookies |
C++ |
Easy |
456 |
132 Pattern |
C++ C++ |
Medium |
458 |
Poor Pigs |
C++ |
Hard |
459 |
Repeated Substring Pattern |
C++ |
Easy |
460 |
LFU Cache |
C++ |
Hard |
461 |
Hamming Distance |
C++ |
Easy |
462 |
Minimum Moves to Equal Array Elements II |
C++ |
Medium |
463 |
Island Perimeter |
C++ C++ |
Easy |
476 |
Number Complement |
C++ |
Easy |
477 |
Total Hamming Distance |
C++ |
Medium |
485 |
Max Consecutive Ones |
C++ |
Easy |
491 |
Increasing Subsequences |
C++ C++ C++ |
Medium |
492 |
Construct the Rectangle |
C++ |
Easy |
494 |
Target Sum |
C++ C++ |
Medium |
495 |
Teemo Attacking |
C++ |
Easy |
496 |
Next Greater Element I |
C++ |
Easy |
500 |
Keyboard Row |
C++ |
Easy |
501 |
Find Mode in Binary Search Tree |
C++ |
Easy |
502 |
IPO |
C++ |
Hard |
503 |
Next Greater Element II |
C++ |
Medium |
506 |
Relative Ranks |
C++ |
Easy |
507 |
Perfect Number |
C++ |
Easy |
508 |
Most Frequent Subtree Sum |
C++ |
Medium |
509 |
Fibonacci Number |
C++ C++ C++ |
Easy |
510 |
Inorder Successor in BST II |
C++ |
Medium |
513 |
Find Bottom Left Tree Value |
C++ C++ |
Medium |
515 |
Find Largest Value in Each Tree Row |
C++ |
Medium |
518 |
Coin Change 2 |
C++ |
Medium |
520 |
Detect Capital |
C++ |
Easy |
523 |
Continuous Subarray Sum |
C++ C++ |
Medium |
524 |
Longest Word in Dictionary through Deleting |
C++ |
Medium |
525 |
Contiguous Array |
C++ |
Medium |
526 |
Beautiful Arrangement |
C++ C++ |
Medium |
530 |
Minimum Absolute Difference in BST |
C++ |
Easy |
532 |
K-diff Pairs in an Array |
C++ C++ C++ C++ |
Medium |
535 |
Encode and Decode TinyURL |
C++ |
Medium |
537 |
Complex Number Multiplication |
C++ |
Medium |
538 |
Convert BST to Greater Tree |
C++ C++ C++ C++ |
Medium |
540 |
Single Element in a Sorted Array |
C++ C++ |
Medium |
541 |
Reverse String II |
C++ |
Easy |
543 |
Diameter of Binary Tree |
C++ |
Easy |
547 |
Number of Provinces |
C++ C++ C++ C++ |
Medium |
551 |
Student Attendance Record I |
C++ |
Easy |
557 |
Reverse Words in a String III |
C++ C++ |
Easy |
559 |
Maximum Depth of N-ary Tree |
C++ |
Easy |
560 |
Subarray Sum Equals K |
C++ |
Medium |
561 |
Array Partition I |
C++ |
Easy |
563 |
Binary Tree Tilt |
C++ |
Easy |
565 |
Array Nesting |
C++ |
Medium |
566 |
Reshape the Matrix |
C++ C++ |
Easy |
567 |
Permutation in String |
C++ C++ C++ |
Medium |
572 |
Subtree of Another Tree |
C++ |
Easy |
575 |
Distribute Candies |
C++ |
Easy |
581 |
Shortest Unsorted Continuous Subarray |
C++ C++ |
Medium |
583 |
Delete Operation for Two Strings |
C++ C++ |
Medium |
589 |
N-ary Tree Preorder Traversal |
C++ |
Easy |
590 |
N-ary Tree Postorder Traversal |
C++ |
Easy |
594 |
Longest Harmonious Subsequence |
C++ |
Easy |
598 |
Range Addition II |
C++ |
Easy |
599 |
Minimum Index Sum of Two Lists |
C++ |
Easy |
605 |
Can Place Flowers |
C++ |
Easy |
606 |
Construct String from Binary Tree |
C++ C++ |
Easy |
609 |
Find Duplicate File in System |
C++ |
Medium |
617 |
Merge Two Binary Trees |
C++ |
Easy |
621 |
Task Scheduler |
C++ |
Medium |
622 |
Design Circular Queue |
C++ |
Medium |
623 |
Add One Row to Tree |
C++ |
Medium |
628 |
Maximum Product of Three Numbers |
C++ C++ |
Easy |
630 |
Course Schedule III |
C++ |
Hard |
637 |
Average of Levels in Binary Tree |
C++ C++ C++ |
Easy |
643 |
Maximum Average Subarray I |
C++ |
Easy |
645 |
Set Mismatch |
C++ |
Easy |
646 |
Maximum Length of Pair Chain |
C++ C++ |
Medium |
647 |
Palindromic Substrings |
C++ |
Medium |
648 |
Replace Words |
C++ C++ |
Medium |
652 |
Find Duplicate Subtrees |
C++ |
Medium |
653 |
Two Sum IV - Input is a BST |
C++ C++ C++ |
Easy |
654 |
Maximum Binary Tree |
C++ |
Medium |
655 |
Print Binary Tree |
C++ |
Medium |
657 |
Robot Return to Origin |
C++ |
Easy |
658 |
Find K Closest Elements |
C++ C++ C++ |
Medium |
662 |
Maximum Width of Binary Tree |
C++ |
Medium |
665 |
Non-decreasing Array |
C++ C++ |
Medium |
669 |
Trim a Binary Search Tree |
C++ |
Medium |
671 |
Second Minimum Node In a Binary Tree |
C++ |
Easy |
674 |
Longest Continuous Increasing Subsequence |
C++ |
Easy |
676 |
Implement Magic Dictionary |
C++ |
Medium |
677 |
Map Sum Pairs |
C++ |
Medium |
680 |
Valid Palindrome II |
C++ |
Easy |
682 |
Baseball Game |
C++ |
Easy |
684 |
Redundant Connection |
C++ |
Medium |
687 |
Longest Univalue Path |
C++ |
Medium |
690 |
Employee Importance |
C++ C++ |
Easy |
692 |
Top K Frequent Words |
C++ C++ C++ |
Medium |
693 |
Binary Number with Alternating Bits |
C++ |
Easy |
694 |
Number of Distinct Islands |
C++ |
Medium |
695 |
Max Area of Island |
C++ |
Medium |
696 |
Count Binary Substrings |
C++ |
Easy |
700 |
Search in a Binary Search Tree |
C++ C++ |
Easy |
701 |
Insert into a Binary Search Tree |
C++ C++ |
Medium |
703 |
Kth Largest Element in a Stream |
C++ |
Easy |
704 |
Binary Search |
C++ C++ C++ |
Easy |
705 |
Design HashSet |
C++ C++ |
Easy |
706 |
Design HashMap |
C++ C++ C++ |
Easy |
707 |
Design Linked List |
C++ |
Medium |
709 |
To Lower Case |
C++ |
Easy |
717 |
bit and 2-bit Characters |
C++ |
Easy |
720 |
Longest Word in Dictionary |
C++ C++ C++ C++ C++ C++ |
Medium |
724 |
Find Pivot Index |
C++ C++ |
Easy |
725 |
Split Linked List in Parts |
C++ |
Medium |
728 |
Self Dividing Numbers |
C++ |
Easy |
733 |
Flood Fill |
C++ |
Easy |
739 |
Daily Temperatures |
C++ |
Medium |
740 |
Delete and Earn |
C++ |
Medium |
743 |
Network Delay Time |
C++ |
Medium |
744 |
Find Smallest Letter Greater Than Target |
C++ |
Easy |
746 |
Min Cost Climbing Stairs |
C++ C++ |
Easy |
747 |
Largest Number At Least Twice of Others |
C++ |
Easy |
748 |
Shortest Completing Word |
C++ |
Easy |
752 |
Open the Lock |
C++ |
Medium |
762 |
Prime Number of Set Bits in Binary Representation |
C++ C++ |
Easy |
763 |
Partition Labels |
C++ C++ |
Medium |
766 |
Toeplitz Matrix |
C++ C++ |
Easy |
771 |
Jewels and Stones |
C++ |
Easy |
781 |
Rabbits in Forest |
C++ |
Medium |
783 |
Minimum Distance Between BST Nodes |
C++ |
Easy |
784 |
Letter Case Permutation |
C++ C++ |
Medium |
785 |
Is Graph Bipartite? |
C++ C++ C++ C++ |
Medium |
789 |
Escape The Ghosts |
C++ |
Medium |
791 |
Custom Sort String |
C++ |
Medium |
796 |
Rotate String |
C++ |
Easy |
797 |
All Paths From Source to Target |
C++ |
Medium |
799 |
Champagne Tower |
C++ |
Medium |
804 |
Unique Morse Code Words |
C++ |
Easy |
806 |
Number of Lines To Write String |
C++ |
Easy |
807 |
Max Increase to Keep City Skyline |
C++ |
Medium |
814 |
Binary Tree Pruning |
C++ C++ |
Medium |
817 |
Linked List Components |
C++ |
Medium |
819 |
Most Common Word |
C++ |
Easy |
821 |
Shortest Distance to a Character |
C++ |
Easy |
824 |
Goat Latin |
C++ |
Easy |
827 |
Making A Large Island |
C++ |
Hard |
830 |
Positions of Large Groups |
C++ |
Easy |
832 |
Flipping an Image |
C++ |
Easy |
834 |
Sum of Distances in Tree |
C++ C++ |
Hard |
836 |
Rectangle Overlap |
C++ C++ |
Easy |
841 |
Keys and Rooms |
C++ C++ C++ |
Medium |
844 |
Backspace String Compare |
C++ C++ C++ |
Easy |
846 |
Hand of Straights |
C++ |
Medium |
847 |
Shortest Path Visiting All Nodes |
C++ |
Hard |
849 |
Maximize Distance to Closest Person |
C++ |
Medium |
852 |
Peak Index in a Mountain Array |
C++ C++ |
Easy |
856 |
Score of Parentheses |
C++ C++ |
Medium |
858 |
Mirror Reflection |
C++ C++ |
Medium |
860 |
Lemonade Change |
C++ |
Easy |
863 |
All Nodes Distance K in Binary Tree |
C++ |
Medium |
865 |
Smallest Subtree with all the Deepest Nodes |
C++ |
Medium |
867 |
Transpose Matrix |
C++ |
Easy |
869 |
Reordered Power of 2 |
C++ |
Medium |
870 |
Advantage Shuffle |
C++ |
Medium |
872 |
Leaf-Similar Trees |
C++ |
Easy |
875 |
Koko Eating Bananas |
C++ |
Medium |
876 |
Middle of the Linked List |
C++ |
Easy |
877 |
Stone Game |
C++ C++ |
Medium |
881 |
Boats to Save People |
C++ C++ C++ C++ |
Medium |
884 |
Uncommon Words from Two Sentences |
C++ |
Easy |
886 |
Possible Bipartition |
C++ C++ C++ C++ |
Medium |
888 |
Fair Candy Swap |
C++ |
Easy |
893 |
Groups of Special-Equivalent Strings |
C++ |
Medium |
895 |
Maximum Frequency Stack |
C++ |
Hard |
896 |
Monotonic Array |
C++ C++ |
Easy |
897 |
Increasing Order Search Tree |
C++ C++ C++ |
Easy |
901 |
Online Stock Span |
C++ |
Medium |
904 |
Fruit Into Baskets |
C++ C++ |
Medium |
905 |
Sort Array By Parity |
C++ C++ C++ C++ C++ |
Easy |
908 |
Smallest Range I |
C++ |
Easy |
912 |
Sort an Array |
C++ C++ |
Medium |
916 |
Word Subsets |
C++ |
Medium |
917 |
Reverse Only Letters |
C++ |
Easy |
918 |
Maximum Sum Circular Subarray |
C++ |
Medium |
919 |
Complete Binary Tree Inserter |
C++ |
Medium |
921 |
Minimum Add to Make Parentheses Valid |
C++ |
Medium |
922 |
Sort Array By Parity II |
C++ |
Easy |
923 |
Sum With Multiplicity |
C++ |
Medium |
925 |
Long Pressed Name |
C++ |
Easy |
929 |
Unique Email Addresses |
C++ |
Easy |
930 |
Binary Subarrays With Sum |
C++ |
Medium |
931 |
Minimum Falling Path Sum |
C++ C++ C++ |
Medium |
933 |
Number of Recent Calls |
C++ |
Easy |
934 |
Shortest Bridge |
C++ C++ |
Medium |
938 |
Range Sum of BST |
C++ C++ C++ C++ |
Easy |
941 |
Valid Mountain Array |
C++ |
Easy |
942 |
DI String Match |
C++ |
Easy |
944 |
Delete Columns to Make Sorted |
C++ |
Easy |
946 |
Validate Stack Sequences |
C++ C++ |
Medium |
948 |
Bag of Tokens |
C++ |
Medium |
951 |
Flip Equivalent Binary Trees |
C++ C++ |
Medium |
953 |
Verifying an Alien Dictionary |
C++ C++ |
Easy |
958 |
Check Completeness of a Binary Tree |
C++ |
Medium |
961 |
N-Repeated Element in Size 2N Array |
C++ C++ |
Easy |
965 |
Univalued Binary Tree |
C++ |
Easy |
967 |
Numbers With Same Consecutive Differences |
C++ C++ |
Medium |
968 |
Binary Tree Cameras |
C++ |
Hard |
969 |
Pancake Sorting |
C++ |
Medium |
971 |
Flip Binary Tree To Match Preorder Traversal |
C++ |
Medium |
973 |
K Closest Points to Origin |
C++ |
Medium |
974 |
Subarray Sums Divisible by K |
C++ |
Medium |
976 |
Largest Perimeter Triangle |
C++ |
Easy |
977 |
Squares of a Sorted Array |
C++ |
Easy |
979 |
Distribute Coins in Binary Tree |
C++ |
Medium |
980 |
Unique Paths III |
C++ |
Hard |
981 |
Time Based Key-Value Store |
C++ |
Medium |
985 |
Sum of Even Numbers After Queries |
C++ |
Medium |
986 |
Interval List Intersections |
C++ |
Medium |
987 |
Vertical Order Traversal of a Binary Tree |
C++ |
Hard |
988 |
Smallest String Starting From Leaf |
C++ |
Medium |
989 |
Add to Array-Form of Integer |
C++ |
Easy |
990 |
Satisfiability of Equality Equations |
C++ |
Medium |
991 |
Broken Calculator |
C++ C++ |
Medium |
992 |
Subarrays with K Different Integers |
C++ |
Hard |
993 |
Cousins in Binary Tree |
C++ |
Easy |
994 |
Rotting Oranges |
C++ |
Medium |
997 |
Find the Town Judge |
C++ C++ |
Easy |
998 |
Maximum Binary Tree II |
C++ |
Medium |
999 |
Available Captures for Rook |
C++ |
Easy |
1002 |
Find Common Characters |
C++ |
Easy |
1004 |
Max Consecutive Ones III |
C++ |
Medium |
1005 |
Maximize Sum Of Array After K Negations |
C++ |
Easy |
1006 |
Clumsy Factorial |
C++ |
Medium |
1007 |
Minimum Domino Rotations For Equal Row |
C++ |
Medium |
1008 |
Construct Binary Search Tree from Preorder Traversal |
C++ |
Medium |
1009 |
Complement of Base 10 Integer |
C++ |
Easy |
1010 |
Pairs of Songs With Total Durations Divisible by 60 |
C++ C++ |
Medium |
1013 |
Partition Array Into Three Parts With Equal Sum |
C++ |
Easy |
1018 |
Binary Prefix Divisible By 5 |
C++ |
Easy |
1019 |
Next Greater Node In Linked List |
C++ C++ |
Medium |
1020 |
Number of Enclaves |
C++ |
Medium |
1021 |
Remove Outermost Parentheses |
C++ |
Easy |
1022 |
Sum of Root To Leaf Binary Numbers |
C++ C++ |
Easy |
1023 |
Camelcase Matching |
C++ C++ |
Medium |
1025 |
Divisor Game |
C++ |
Easy |
1026 |
Maximum Difference Between Node and Ancestor |
C++ |
Medium |
1029 |
Two City Scheduling |
C++ C++ |
Medium |
1033 |
Moving Stones Until Consecutive |
C++ |
Easy |
1037 |
Valid Boomerang |
C++ |
Easy |
1038 |
Binary Search Tree to Greater Sum Tree |
C++ |
Medium |
1041 |
Robot Bounded In Circle |
C++ |
Medium |
1046 |
Last Stone Weight |
C++ |
Easy |
1047 |
Remove All Adjacent Duplicates In String |
C++ |
Easy |
1048 |
Longest String Chain |
C++ |
Medium |
1051 |
Height Checker |
C++ |
Easy |
1061 |
Lexicographically Smallest Equivalent String |
C++ C++ |
Medium |
1078 |
Occurrences After Bigram |
C++ |
Easy |
1079 |
Letter Tile Possibilities |
C++ |
Medium |
1081 |
Smallest Subsequence of Distinct Characters |
C++ C++ C++ |
Medium |
1089 |
Duplicate Zeros |
C++ |
Easy |
1090 |
Largest Values From Labels |
C++ |
Medium |
1091 |
Shortest Path in Binary Matrix |
C++ |
Medium |
1094 |
Car Pooling |
C++ C++ |
Medium |
1100 |
Find K-Length Substrings With No Repeated Characters |
C++ |
Medium |
1103 |
Distribute Candies to People |
C++ |
Easy |
1104 |
Path In Zigzag Labelled Binary Tree |
C++ |
Medium |
1108 |
Defanging an IP Address |
C++ |
Easy |
1109 |
Corporate Flight Bookings |
C++ |
Medium |
1110 |
Delete Nodes And Return Forest |
C++ |
Medium |
1119 |
Remove Vowels from a String |
C++ |
Easy |
1122 |
Relative Sort Array |
C++ |
Easy |
1123 |
Lowest Common Ancestor of Deepest Leaves |
C++ |
Medium |
1128 |
Number of Equivalent Domino Pairs |
C++ |
Easy |
1129 |
Shortest Path with Alternating Colors |
C++ |
Medium |
1137 |
N-th Tribonacci Number |
C++ C++ |
Easy |
1143 |
Longest Common Subsequence |
C++ C++ C++ C++ |
Medium |
1160 |
Find Words That Can Be Formed by Characters |
C++ |
Easy |
1161 |
Maximum Level Sum of a Binary Tree |
C++ |
Medium |
1162 |
As Far from Land as Possible |
C++ |
Medium |
1167 |
Minimum Cost to Connect Sticks |
C++ |
Medium |
1170 |
Compare Strings by Frequency of the Smallest Character |
C++ |
Medium |
1171 |
Remove Zero Sum Consecutive Nodes from Linked List |
C++ |
Medium |
1184 |
Distance Between Bus Stops |
C++ |
Easy |
1189 |
Maximum Number of Balloons |
C++ C++ |
Easy |
1190 |
Reverse Substrings Between Each Pair of Parentheses |
C++ C++ C++ |
Medium |
1192 |
Critical Connections in a Network |
C++ |
Hard |
1200 |
Minimum Absolute Difference |
C++ |
Easy |
1201 |
Ugly Number III |
C++ |
Medium |
1202 |
Smallest String With Swaps |
C++ |
Medium |
1207 |
Unique Number of Occurrences |
C++ C++ |
Easy |
1209 |
Remove All Adjacent Duplicates in String II |
C++ |
Medium |
1217 |
Minimum Cost to Move Chips to The Same Position |
C++ |
Easy |
1219 |
Path with Maximum Gold |
C++ |
Medium |
1221 |
Split a String in Balanced Strings |
C++ C++ |
Easy |
1227 |
Airplane Seat Assignment Probability |
C++ |
Medium |
1232 |
Check If It Is a Straight Line |
C++ |
Easy |
1233 |
Remove Sub-Folders from the Filesystem |
C++ |
Medium |
1237 |
Find Positive Integer Solution for a Given Equation |
C++ |
Medium |
1239 |
Maximum Length of a Concatenated String with Unique Characters |
C++ C++ |
Medium |
1247 |
Minimum Swaps to Make Strings Equal |
C++ |
Medium |
1248 |
Count Number of Nice Subarrays |
C++ C++ |
Medium |
1249 |
Minimum Remove to Make Valid Parentheses |
C++ C++ C++ |
Medium |
1254 |
Number of Closed Islands |
C++ |
Medium |
1260 |
Shift 2D Grid |
C++ C++ |
Easy |
1261 |
Find Elements in a Contaminated Binary Tree |
C++ |
Medium |
1266 |
Minimum Time Visiting All Points |
C++ |
Easy |
1267 |
Count Servers that Communicate |
C++ C++ |
Medium |
1268 |
Search Suggestions System |
C++ C++ C++ C++ C++ C++ |
Medium |
1281 |
Subtract the Product and Sum of Digits of an Integer |
C++ |
Easy |
1282 |
Group the People Given the Group Size They Belong To |
C++ C++ |
Medium |
1286 |
Iterator for Combination |
C++ |
Medium |
1287 |
Element Appearing More Than 25% In Sorted Array |
C++ C++ C++ |
Easy |
1288 |
Remove Covered Intervals |
C++ C++ C++ |
Medium |
1290 |
Convert Binary Number in a Linked List to Integer |
C++ |
Easy |
1291 |
Sequential Digits |
C++ C++ |
Medium |
1295 |
Find Numbers with Even Number of Digits |
C++ |
Easy |
1296 |
Divide Array in Sets of K Consecutive Numbers |
C++ |
Medium |
1299 |
Replace Elements with Greatest Element on Right Side |
C++ C++ |
Easy |
1302 |
Deepest Leaves Sum |
C++ C++ C++ |
Medium |
1304 |
Find N Unique Integers Sum up to Zero |
C++ |
Easy |
1305 |
All Elements in Two Binary Search Trees |
C++ C++ C++ C++ |
Medium |
1309 |
Decrypt String from Alphabet to Integer Mapping |
C++ |
Easy |
1313 |
Decompress Run-Length Encoded List |
C++ |
Easy |
1315 |
Sum of Nodes with Even-Valued Grandparent |
C++ |
Medium |
1317 |
Convert Integer to the Sum of Two No-Zero Integers |
C++ |
Easy |
1319 |
Number of Operations to Make Network Connected |
C++ |
Medium |
1323 |
Maximum 69 Number |
C++ |
Easy |
1324 |
Print Words Vertically |
C++ |
Medium |
1325 |
Delete Leaves With a Given Value |
C++ |
Medium |
1328 |
Break a Palindrome |
C++ C++ |
Medium |
1329 |
Sort the Matrix Diagonally |
C++ |
Medium |
1331 |
Rank Transform of an Array |
C++ |
Easy |
1332 |
Remove Palindromic Subsequences |
C++ |
Easy |
1337 |
The K Weakest Rows in a Matrix |
C++ C++ C++ C++ C++ C++ C++ C++ |
Easy |
1338 |
Reduce Array Size to The Half |
C++ C++ |
Medium |
1339 |
Maximum Product of Splitted Binary Tree |
C++ C++ |
Medium |
1342 |
Number of Steps to Reduce a Number to Zero |
C++ |
Easy |
1343 |
Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold |
C++ |
Medium |
1345 |
Jump Game IV |
C++ |
Hard |
1346 |
Check If N and Its Double Exist |
C++ C++ |
Easy |
1347 |
Minimum Number of Steps to Make Two Strings Anagram |
C++ C++ C++ C++ |
Medium |
1351 |
Count Negative Numbers in a Sorted Matrix |
C++ |
Easy |
1352 |
Product of the Last K Numbers |
C++ |
Medium |
1356 |
Sort Integers by The Number of 1 Bits |
C++ |
Easy |
1357 |
Apply Discount Every n Orders |
C++ |
Medium |
1358 |
Number of Substrings Containing All Three Characters |
C++ C++ |
Medium |
1359 |
Count All Valid Pickup and Delivery Options |
C++ |
Hard |
1361 |
Validate Binary Tree Nodes |
C++ |
Medium |
1365 |
How Many Numbers Are Smaller Than the Current Number |
C++ C++ |
Easy |
1367 |
Linked List in Binary Tree |
C++ |
Medium |
1371 |
Find the Longest Substring Containing Vowels in Even Counts |
C++ |
Medium |
1374 |
Generate a String With Characters That Have Odd Counts |
C++ C++ |
Easy |
1376 |
Time Needed to Inform All Employees |
C++ C++ |
Medium |
1379 |
Find a Corresponding Node of a Binary Tree in a Clone of That Tree |
C++ C++ |
Easy |
1380 |
Lucky Numbers in a Matrix |
C++ C++ |
Easy |
1381 |
Design a Stack With Increment Operation |
C++ |
Medium |
1382 |
Balance a Binary Search Tree |
C++ |
Medium |
1383 |
Maximum Performance of a Team |
C++ |
Hard |
1385 |
Find the Distance Value Between Two Arrays |
C++ |
Easy |
1387 |
Sort Integers by The Power Value |
C++ C++ |
Medium |
1389 |
Create Target Array in the Given Order |
C++ |
Easy |
1394 |
Find Lucky Integer in an Array |
C++ |
Easy |
1395 |
Count Number of Teams |
C++ |
Medium |
1396 |
Design Underground System |
C++ C++ |
Medium |
1399 |
Count Largest Group |
C++ C++ |
Easy |
1403 |
Minimum Subsequence in Non-Increasing Order |
C++ |
Easy |
1408 |
String Matching in an Array |
C++ |
Easy |
1409 |
Queries on a Permutation With Key |
C++ |
Medium |
1413 |
Minimum Value to Get Positive Step by Step Sum |
C++ |
Easy |
1414 |
Find the Minimum Number of Fibonacci Numbers Whose Sum Is K |
C++ |
Medium |
1415 |
The k-th Lexicographical String of All Happy Strings of Length n |
C++ |
Medium |
1417 |
Reformat The String |
C++ |
Easy |
1418 |
Display Table of Food Orders in a Restaurant |
C++ |
Medium |
1422 |
Maximum Score After Splitting a String |
C++ |
Easy |
1423 |
Maximum Points You Can Obtain from Cards |
C++ |
Medium |
1426 |
Counting Elements |
C++ C++ |
Easy |
1431 |
Kids With the Greatest Number of Candies |
C++ |
Easy |
1436 |
Destination City |
C++ C++ |
Easy |
1437 |
Check If All 1's Are at Least Length K Places Away |
C++ |
Easy |
1438 |
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit |
C++ |
Medium |
1441 |
Build an Array With Stack Operations |
C++ |
Easy |
1443 |
Minimum Time to Collect All Apples in a Tree |
C++ C++ |
Medium |
1446 |
Consecutive Characters |
C++ |
Easy |
1447 |
Simplified Fractions |
C++ |
Medium |
1448 |
Count Good Nodes in Binary Tree |
C++ C++ |
Medium |
1450 |
Number of Students Doing Homework at a Given Time |
C++ |
Easy |
1451 |
Rearrange Words in a Sentence |
C++ C++ C++ C++ |
Medium |
1455 |
Check If a Word Occurs As a Prefix of Any Word in a Sentence |
C++ |
Easy |
1456 |
Maximum Number of Vowels in a Substring of Given Length |
C++ C++ |
Medium |
1457 |
Pseudo-Palindromic Paths in a Binary Tree |
C++ C++ |
Medium |
1460 |
Make Two Arrays Equal by Reversing Sub-arrays |
C++ C++ |
Easy |
1461 |
Check If a String Contains All Binary Codes of Size K |
C++ C++ |
Medium |
1463 |
Cherry Pickup II |
C++ C++ C++ |
Hard |
1464 |
Maximum Product of Two Elements in an Array |
C++ |
Easy |
1465 |
Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts |
C++ C++ |
Medium |
1466 |
Reorder Routes to Make All Paths Lead to the City Zero |
C++ |
Medium |
1469 |
Find All The Lonely Nodes |
C++ |
Easy |
1470 |
Shuffle the Array |
C++ |
Easy |
1471 |
The k Strongest Values in an Array |
C++ C++ |
Medium |
1472 |
Design Browser History |
C++ |
Medium |
1475 |
Final Prices With a Special Discount in a Shop |
C++ |
Easy |
1476 |
Subrectangle Queries |
C++ |
Medium |
1480 |
Running Sum of 1d Array |
C++ |
Easy |
1486 |
XOR Operation in an Array |
C++ |
Easy |
1487 |
Making File Names Unique |
C++ |
Medium |
1491 |
Average Salary Excluding the Minimum and Maximum Salary |
C++ |
Easy |
1492 |
The kth Factor of n |
C++ |
Medium |
1493 |
Longest Subarray of 1's After Deleting One Element |
C++ C++ |
Medium |
1496 |
Path Crossing |
C++ C++ |
Easy |
1502 |
Can Make Arithmetic Progression From Sequence |
C++ |
Easy |
1507 |
Reformat Date |
C++ C++ |
Easy |
1508 |
Range Sum of Sorted Subarray Sums |
C++ |
Medium |
1509 |
Minimum Difference Between Largest and Smallest Value in Three Moves |
C++ |
Medium |
1510 |
Stone Game IV |
C++ C++ |
Hard |
1512 |
Number of Good Pairs |
C++ |
Easy |
1518 |
Water Bottles |
C++ |
Easy |
1519 |
Number of Nodes in the Sub-Tree With the Same Label |
C++ |
Medium |
1523 |
Count Odd Numbers in an Interval Range |
C++ |
Easy |
1524 |
Number of Sub-arrays With Odd Sum |
C++ |
Medium |
1528 |
Shuffle String |
C++ |
Easy |
1530 |
Number of Good Leaf Nodes Pairs |
C++ |
Medium |
1534 |
Count Good Triplets |
C++ |
Easy |
1535 |
Find the Winner of an Array Game |
C++ |
Medium |
1539 |
Kth Missing Positive Number |
C++ |
Easy |
1544 |
Make The String Great |
C++ |
Easy |
1545 |
Find Kth Bit in Nth Binary String |
C++ C++ |
Medium |
1546 |
Maximum Number of Non-Overlapping Subarrays With Sum Equals Target |
C++ |
Medium |
1550 |
Three Consecutive Odds |
C++ |
Easy |
1551 |
Minimum Operations to Make Array Equal |
C++ |
Medium |
1552 |
Magnetic Force Between Two Balls |
C++ |
Medium |
1556 |
Thousand Separator |
C++ |
Easy |
1557 |
Minimum Number of Vertices to Reach All Nodes |
C++ C++ C++ |
Medium |
1558 |
Minimum Numbers of Function Calls to Make Target Array |
C++ |
Medium |
1561 |
Maximum Number of Coins You Can Get |
C++ |
Medium |
1566 |
Detect Pattern of Length M Repeated K or More Times |
C++ |
Easy |
1567 |
Maximum Length of Subarray With Positive Product |
C++ |
Medium |
1572 |
Matrix Diagonal Sum |
C++ C++ |
Easy |
1578 |
Minimum Deletion Cost to Avoid Repeating Letters |
C++ C++ C++ |
Medium |
1582 |
Special Positions in a Binary Matrix |
C++ |
Easy |
1584 |
Min Cost to Connect All Points |
C++ C++ |
Medium |
1588 |
Sum of All Odd Length Subarrays |
C++ |
Easy |
1590 |
Make Sum Divisible by P |
C++ |
Medium |
1598 |
Crawler Log Folder |
C++ C++ |
Easy |
1602 |
Find Nearest Right Node in Binary Tree |
C++ C++ |
Medium |
1603 |
Design Parking System |
C++ |
Easy |
1605 |
Find Valid Matrix Given Row and Column Sums |
C++ |
Medium |
1608 |
Special Array With X Elements Greater Than or Equal X |
C++ |
Easy |
1609 |
Even Odd Tree |
C++ |
Medium |
1614 |
Maximum Nesting Depth of the Parentheses |
C++ |
Easy |
1616 |
Split Two Strings to Make Palindrome |
C++ |
Medium |
1619 |
Mean of Array After Removing Some Elements |
C++ |
Easy |
1624 |
Largest Substring Between Two Equal Characters |
C++ |
Easy |
1626 |
Best Team With No Conflicts |
C++ |
Medium |
1629 |
Slowest Key |
C++ |
Easy |
1631 |
Path With Minimum Effort |
C++ |
Medium |
1636 |
Sort Array by Increasing Frequency |
C++ |
Easy |
1637 |
Widest Vertical Area Between Two Points Containing No Points |
C++ |
Medium |
1640 |
Check Array Formation Through Concatenation |
C++ |
Easy |
1641 |
Count Sorted Vowel Strings |
C++ C++ C++ C++ |
Medium |
1642 |
Furthest Building You Can Reach |
C++ |
Medium |
1646 |
Get Maximum in Generated Array |
C++ |
Easy |
1647 |
Minimum Deletions to Make Character Frequencies Unique |
C++ |
Medium |
1652 |
Defuse the Bomb |
C++ |
Easy |
1653 |
Minimum Deletions to Make String Balanced |
C++ |
Medium |
1656 |
Design an Ordered Stream |
C++ |
Easy |
1657 |
Determine if Two Strings Are Close |
C++ C++ |
Medium |
1658 |
Minimum Operations to Reduce X to Zero |
C++ |
Medium |
1662 |
Check If Two String Arrays are Equivalent |
C++ |
Easy |
1663 |
Smallest String With A Given Numeric Value |
C++ C++ C++ C++ |
Medium |
1668 |
Maximum Repeating Substring |
C++ |
Easy |
1669 |
Merge In Between Linked Lists |
C++ |
Medium |
1672 |
Richest Customer Wealth |
C++ |
Easy |
1675 |
Minimize Deviation in Array |
C++ C++ |
Hard |
1678 |
Goal Parser Interpretation |
C++ |
Easy |
1679 |
Max Number of K-Sum Pairs |
C++ C++ C++ C++ |
Medium |
1684 |
Count the Number of Consistent Strings |
C++ C++ |
Easy |
1685 |
Sum of Absolute Differences in a Sorted Array |
C++ |
Medium |
1688 |
Count of Matches in Tournament |
C++ C++ |
Easy |
1689 |
Partitioning Into Minimum Number Of Deci-Binary Numbers |
C++ |
Medium |
1695 |
Maximum Erasure Value |
C++ C++ C++ |
Medium |
1696 |
Jump Game VI |
C++ |
Medium |
1700 |
Number of Students Unable to Eat Lunch |
C++ |
Easy |
1701 |
Average Waiting Time |
C++ |
Medium |
1704 |
Determine if String Halves Are Alike |
C++ |
Easy |
1710 |
Maximum Units on a Truck |
C++ |
Easy |
1716 |
Calculate Money in Leetcode Bank |
C++ |
Easy |
1720 |
Decode XORed Array |
C++ |
Easy |
1721 |
Swapping Nodes in a Linked List |
C++ C++ C++ |
Medium |
1725 |
Number Of Rectangles That Can Form The Largest Square |
C++ C++ |
Easy |
1726 |
Tuple with Same Product |
C++ |
Medium |
1732 |
Find the Highest Altitude |
C++ |
Easy |
1736 |
Latest Time by Replacing Hidden Digits |
C++ |
Easy |
1743 |
Restore the Array From Adjacent Pairs |
C++ C++ |
Medium |
1748 |
Sum of Unique Elements |
C++ |
Easy |
1749 |
Maximum Absolute Sum of Any Subarray |
C++ |
Medium |
1752 |
Check if Array Is Sorted and Rotated |
C++ |
Easy |
1753 |
Maximum Score From Removing Stones |
C++ |
Medium |
1758 |
Minimum Changes To Make Alternating Binary String |
C++ |
Easy |
1765 |
Map of Highest Peak |
C++ C++ |
Medium |
1768 |
Merge Strings Alternately |
C++ C++ |
Easy |
1769 |
Minimum Number of Operations to Move All Balls to Each Box |
C++ |
Medium |
1770 |
Maximum Score from Performing Multiplication Operations |
C++ |
Medium |
1773 |
Count Items Matching a Rule |
C++ C++ |
Easy |
1779 |
Find Nearest Point That Has the Same X or Y Coordinate |
C++ |
Easy |
1780 |
Check if Number is a Sum of Powers of Three |
C++ |
Medium |
1784 |
Check if Binary String Has at Most One Segment of Ones |
C++ |
Easy |
1785 |
Minimum Elements to Add to Form a Given Sum |
C++ |
Medium |
1790 |
Check if One String Swap Can Make Strings Equal |
C++ |
Easy |
1791 |
Find Center of Star Graph |
C++ C++ |
Medium |
1792 |
Maximum Average Pass Ratio |
C++ |
Medium |
1796 |
Second Largest Digit in a String |
C++ |
Easy |
1798 |
Maximum Number of Consecutive Values You Can Make |
C++ |
Medium |
1800 |
Maximum Ascending Subarray Sum |
C++ C++ |
Easy |
1805 |
Number of Different Integers in a String |
C++ |
Easy |
1807 |
Evaluate the Bracket Pairs of a String |
C++ |
Medium |
1812 |
Determine Color of a Chessboard Square |
C++ |
Easy |
1814 |
Count Nice Pairs in an Array |
C++ C++ |
Medium |
1816 |
Truncate Sentence |
C++ |
Easy |
1817 |
Finding the Users Active Minutes |
C++ |
Medium |
1818 |
Minimum Absolute Sum Difference |
C++ |
Medium |
1822 |
Sign of the Product of an Array |
C++ |
Easy |
1827 |
Minimum Operations to Make the Array Increasing |
C++ |
Easy |
1828 |
Queries on Number of Points Inside a Circle |
C++ |
Medium |
1832 |
Check if the Sentence Is Pangram |
C++ C++ |
Easy |
1833 |
Maximum Ice Cream Bars |
C++ C++ |
Medium |
1834 |
Single-Threaded CPU |
C++ C++ C++ |
Medium |
1837 |
Sum of Digits in Base K |
C++ |
Easy |
1844 |
Replace All Digits with Characters |
C++ |
Easy |
1845 |
Seat Reservation Manager |
C++ |
Medium |
1848 |
Minimum Distance to the Target Element |
C++ C++ |
Easy |
1859 |
Sorting the Sentence |
C++ |
Easy |
1861 |
Rotating the Box |
C++ |
Medium |
1863 |
Sum of All Subset XOR Totals |
C++ |
Easy |
1869 |
Longer Contiguous Segments of Ones than Zeros |
C++ C++ |
Easy |
1876 |
Substrings of Size Three with Distinct Characters |
C++ |
Easy |
1877 |
Minimize Maximum Pair Sum in Array |
C++ |
Medium |
1880 |
Check if Word Equals Summation of Two Words |
C++ |
Easy |
1897 |
Redistribute Characters to Make All Strings Equal |
C++ |
Easy |
1903 |
Largest Odd Number in String |
C++ |
Easy |
1905 |
Count Sub Islands |
C++ |
Medium |
1909 |
Remove One Element to Make the Array Strictly Increasing |
C++ |
Easy |
1910 |
Remove All Occurrences of a Substring |
C++ C++ |
Medium |
1913 |
Maximum Product Difference Between Two Pairs |
C++ C++ |
Easy |
1920 |
Build Array from Permutation |
C++ |
Easy |
1929 |
Concatenation of Array |
C++ C++ |
Easy |
1935 |
Maximum Number of Words You Can Type |
C++ C++ |
Easy |
1941 |
Check if All Characters Have Equal Number of Occurrences |
C++ C++ |
Easy |
1945 |
Sum of Digits of String After Convert |
C++ |
Easy |
1952 |
Three Divisors |
C++ C++ |
Easy |
1957 |
Delete Characters to Make Fancy String |
C++ |
Easy |
1961 |
Check If String Is a Prefix of Array |
C++ C++ |
Easy |
1962 |
Remove Stones to Minimize the Total |
C++ |
Medium |
1967 |
Number of Strings That Appear as Substrings in Word |
C++ C++ C++ |
Easy |
1971 |
Find if Path Exists in Graph |
C++ C++ C++ |
Easy |
1974 |
Minimum Time to Type Word Using Special Typewriter |
C++ C++ |
Easy |
1979 |
Find Greatest Common Divisor of Array |
C++ |
Easy |
1991 |
Find the Middle Index in Array |
C++ C++ |
Easy |
1992 |
Find All Groups of Farmland |
C++ |
Medium |
1996 |
The Number of Weak Characters in the Game |
C++ |
Medium |
2000 |
Reverse Prefix of Word |
C++ C++ |
Easy |
2006 |
Count Number of Pairs With Absolute Difference K |
C++ C++ C++ |
Easy |
2007 |
Find Original Array From Doubled Array |
C++ C++ C++ |
Medium |
2011 |
Final Value of Variable After Performing Operations |
C++ C++ |
Easy |
2016 |
Maximum Difference Between Increasing Elements |
C++ |
Easy |
2022 |
Convert 1D Array Into 2D Array |
C++ |
Easy |
2032 |
Two Out of Three |
C++ C++ C++ C++ |
Easy |
2037 |
Minimum Number of Moves to Seat Everyone |
C++ |
Easy |
2042 |
Check if Numbers Are Ascending in a Sentence |
C++ |
Easy |
2044 |
Count Number of Maximum Bitwise-OR Subsets |
C++ C++ C++ |
Medium |
2057 |
Smallest Index With Equal Value |
C++ |
Easy |
2073 |
Time Needed to Buy Tickets |
C++ C++ C++ |
Easy |
2079 |
Watering Plants |
C++ |
Medium |
2095 |
Delete the Middle Node of a Linked List |
C++ C++ |
Medium |
2105 |
Watering Plants II |
C++ |
Medium |
2120 |
Execution of All Suffix Instructions Staying in a Grid |
C++ |
Medium |
2125 |
Number of Laser Beams in a Bank |
C++ |
Medium |
2215 |
Find the Difference of Two Arrays |
C++ |
Easy |
2225 |
Find Players With Zero or One Losses |
C++ C++ |
Medium |
2231 |
Largest Number After Digit Swaps by Parity |
C++ C++ C++ |
Easy |
2244 |
Minimum Rounds to Complete All Tasks |
C++ C++ |
Medium |
2246 |
Longest Path With Different Adjacent Characters |
C++ C++ |
Hard |
2256 |
Minimum Average Difference |
C++ |
Medium |
2279 |
Maximum Bags With Full Capacity of Rocks |
C++ |
Medium |
2389 |
Longest Subsequence With Limited Sum |
C++ |
Easy |
2413 |
Smallest Even Multiple |
C++ |
Easy |
2414 |
Length of the Longest Alphabetical Continuous Substring |
C++ |
Medium |
2415 |
Reverse Odd Levels of Binary Tree |
C++ C++ |
Medium |
2416 |
Sum of Prefix Scores of Strings |
C++ |
Hard |
2423 |
Remove Letter To Equalize Frequency |
C++ |
Easy |
2424 |
Longest Uploaded Prefix |
C++ C++ |
Medium |
2427 |
Number of Common Factors |
C++ |
Easy |
2428 |
Maximum Sum of an Hourglass |
C++ |
Medium |
2432 |
The Employee That Worked on the Longest Task |
C++ C++ |
Easy |
2433 |
Find The Original Array of Prefix Xor |
C++ |
Medium |
2437 |
Number of Valid Clock Times |
C++ |
Easy |
2441 |
Largest Positive Integer That Exists With Its Negative |
C++ |
Easy |
2442 |
Count Number of Distinct Integers After Reverse Operations |
C++ |
Medium |
2443 |
Sum of Number and Its Reverse |
C++ |
Medium |
2446 |
Determine if Two Events Have Conflict |
C++ |
Easy |
2447 |
Number of Subarrays With GCD Equal to K |
C++ |
Medium |
2448 |
Minimum Cost to Make Array Equal |
C++ C++ |
Hard |
2451 |
Odd String Difference |
C++ |
Easy |
2452 |
Words Within Two Edits of Dictionary |
C++ C++ |
Medium |
2453 |
Destroy Sequential Targets |
C++ |
Medium |
2455 |
Average Value of Even Numbers That Are Divisible by Three |
C++ |
Easy |
2456 |
Most Popular Video Creator |
C++ C++ |
Medium |
2458 |
Height of Binary Tree After Subtree Removal Queries |
C++ |
Hard |
2460 |
Apply Operations to an Array |
C++ |
Easy |
2461 |
Maximum Sum of Distinct Subarrays With Length K |
C++ |
Medium |
2462 |
Total Cost to Hire K Workers |
C++ |
Medium |
2465 |
Number of Distinct Averages |
C++ |
Easy |
2469 |
Convert the Temperature |
C++ |
Easy |
2470 |
Number of Subarrays With LCM Equal to K |
C++ |
Medium |
2475 |
Number of Unequal Triplets in Array |
C++ |
Easy |
2476 |
Closest Nodes Queries in a Binary Search Tree |
C++ |
Medium |
2481 |
Minimum Cuts to Divide a Circle |
C++ |
Easy |
2482 |
Difference Between Ones and Zeros in Row and Column |
C++ C++ |
Medium |
2483 |
Minimum Penalty for a Shop |
C++ C++ |
Medium |
2485 |
Find the Pivot Integer |
C++ |
Easy |
2486 |
Append Characters to String to Make Subsequence |
C++ |
Medium |
2487 |
Remove Nodes From Linked List |
C++ C++ |
Medium |
2490 |
Circular Sentence |
C++ |
Easy |
2491 |
Divide Players Into Teams of Equal Skill |
C++ |
Medium |
2492 |
Minimum Score of a Path Between Two Cities |
C++ C++ |
Medium |
2496 |
Maximum Value of a String in an Array |
C++ |
Easy |
2497 |
Maximum Star Sum of a Graph |
C++ |
Medium |
2500 |
Delete Greatest Value in Each Row |
C++ |
Easy |
2501 |
Longest Square Streak in an Array |
C++ |
Medium |
2502 |
Design Memory Allocator |
C++ |
Medium |
2506 |
Count Pairs Of Similar Strings |
C++ |
Easy |
2508 |
Add Edges to Make Degrees of All Nodes Even |
C++ |
Hard |
2509 |
Cycle Length Queries in a Tree |
C++ C++ |
Hard |
2511 |
Maximum Enemy Forts That Can Be Captured |
C++ |
Easy |
2512 |
Reward Top K Students |
C++ |
Medium |
2515 |
Shortest Distance to Target String in a Circular Array |
C++ |
Easy |
2520 |
Count the Digits That Divide a Number |
C++ |
Easy |
2521 |
Distinct Prime Factors of Product of Array |
C++ |
Medium |
2522 |
Partition String Into Substrings With Values at Most K |
C++ C++ |
Medium |
2525 |
Categorize Box According to Criteria |
C++ |
Easy |
2526 |
Find Consecutive Integers from a Data Stream |
C++ |
Medium |
2527 |
Find Xor-Beauty of Array |
C++ |
Medium |
2529 |
Maximum Count of Positive Integer and Negative Integer |
C++ |
Easy |
2530 |
Maximal Score After Applying K Operations |
C++ |
Medium |
2531 |
Make Number of Distinct Characters Equal |
C++ |
Medium |
2535 |
Difference Between Element Sum and Digit Sum of an Array |
C++ |
Easy |