All Classes and Interfaces

Class
Description
432 - All O\`one Data Structure\.
2241 - Design an ATM Machine\.
1797 - Design Authentication Manager\.
2043 - Simple Bank System\.
2166 - Design Bitset\.
2286 - Booking Concert Tickets in Groups\.
1472 - Design Browser History\.
173 - Binary Search Tree Iterator\.
1357 - Apply Discount Every n Orders\.
919 - Complete Binary Tree Inserter\.
297 - Serialize and Deserialize Binary Tree\.
449 - Serialize and Deserialize BST\.
535 - Encode and Decode TinyURL\.
1286 - Iterator for Combination\.
2276 - Count Integers in Intervals\.
1381 - Design a Stack With Increment Operation\.
2013 - Detect Squares\.
1226 - The Dining Philosophers\.
1172 - Dinner Plate Stacks\.
 
2227 - Encrypt and Decrypt Strings\.
855 - Exam Room\.
1622 - Fancy Sequence\.
1261 - Find Elements in a Contaminated Binary Tree\.
1865 - Finding Pairs With a Certain Sum\.
1195 - Fizz Buzz Multithreaded\.
1114 - Print in Order\.
1115 - Print FooBar Alternately\.
2353 - Design a Food Rating System\.
895 - Maximum Frequency Stack\.
1670 - Design Front Middle Back Queue\.
1117 - Building H2O\.
 
 
703 - Kth Largest Element in a Stream\.
460 - LFU Cache\.
 
1993 - Operations on Tree\.
146 - LRU Cache\.
676 - Implement Magic Dictionary\.
1157 - Online Majority Element In Subarray\.
677 - Map Sum Pairs\.
295 - Find Median from Data Stream\.
155 - Min Stack\.
1825 - Finding MK Average\.
1912 - Design Movie Rental System\.
729 - My Calendar I\.
732 - My Calendar III\.
731 - My Calendar II\.
641 - Design Circular Deque\.
622 - Design Circular Queue\.
706 - Design HashMap\.
705 - Design HashSet\.
707 - Design Linked List\.
232 - Implement Queue using Stacks\.
225 - Implement Stack using Queues\.
 
341 - Flatten Nested List Iterator\.
 
 
 
427 - Construct Quad Tree\.
430 - Flatten a Multilevel Doubly Linked List\.
558 - Logical OR of Two Binary Grids Represented as Quad-Trees\.
303 - Range Sum Query - Immutable\.
307 - Range Sum Query - Mutable\.
2349 - Design a Number Container System\.
304 - Range Sum Query 2D - Immutable\.
1656 - Design an Ordered Stream\.
1603 - Design Parking System\.
284 - Peeking Iterator\.
1352 - Product of the Last K Numbers\.
381 - Insert Delete GetRandom O(1) - Duplicates allowed\.
380 - Insert Delete GetRandom O(1)\.
2080 - Range Frequency Queries\.
715 - Range Module\.
933 - Number of Recent Calls\.
900 - RLE Iterator\.
2069 - Walking Robot Simulation II\.
1845 - Seat Reservation Manager\.
1206 - Design Skiplist\.
2336 - Smallest Number in Infinite Set\.
1146 - Snapshot Array\.
1 - Two Sum\.
2 - Add Two Numbers\.
3 - Longest Substring Without Repeating Characters\.
4 - Median of Two Sorted Arrays\.
5 - Longest Palindromic Substring\.
6 - Zigzag Conversion\.
7 - Reverse Integer\.
8 - String to Integer (atoi)\.
9 - Palindrome Number\.
10 - Regular Expression Matching\.
11 - Container With Most Water\.
12 - Integer to Roman\.
13 - Roman to Integer\.
14 - Longest Common Prefix\.
15 - 3Sum\.
16 - 3Sum Closest\.
17 - Letter Combinations of a Phone Number\.
18 - 4Sum\.
19 - Remove Nth Node From End of List\.
20 - Valid Parentheses\.
21 - Merge Two Sorted Lists\.
22 - Generate Parentheses\.
23 - Merge k Sorted Lists\.
24 - Swap Nodes in Pairs\.
25 - Reverse Nodes in k-Group\.
26 - Remove Duplicates from Sorted Array\.
27 - Remove Element\.
28 - Implement strStr()\.
29 - Divide Two Integers\.
30 - Substring with Concatenation of All Words\.
31 - Next Permutation\.
32 - Longest Valid Parentheses\.
33 - Search in Rotated Sorted Array\.
34 - Find First and Last Position of Element in Sorted Array\.
35 - Search Insert Position\.
36 - Valid Sudoku\.
37 - Sudoku Solver\.
38 - Count and Say\.
39 - Combination Sum\.
40 - Combination Sum II\.
41 - First Missing Positive\.
42 - Trapping Rain Water\.
43 - Multiply Strings\.
44 - Wildcard Matching\.
45 - Jump Game II\.
46 - Permutations\.
47 - Permutations II\.
48 - Rotate Image\.
49 - Group Anagrams\.
50 - Pow(x, n)\.
51 - N-Queens\.
52 - N-Queens II\.
53 - Maximum Subarray\.
54 - Spiral Matrix\.
55 - Jump Game\.
56 - Merge Intervals\.
57 - Insert Interval\.
58 - Length of Last Word\.
59 - Spiral Matrix II\.
60 - Permutation Sequence\.
61 - Rotate List\.
62 - Unique Paths\.
63 - Unique Paths II\.
64 - Minimum Path Sum\.
65 - Valid Number\.
66 - Plus One\.
67 - Add Binary\.
68 - Text Justification\.
69 - Sqrt(x)\.
70 - Climbing Stairs\.
71 - Simplify Path\.
72 - Edit Distance\.
73 - Set Matrix Zeroes\.
74 - Search a 2D Matrix\.
75 - Sort Colors\.
76 - Minimum Window Substring\.
77 - Combinations\.
78 - Subsets\.
79 - Word Search\.
80 - Remove Duplicates from Sorted Array II\.
81 - Search in Rotated Sorted Array II\.
82 - Remove Duplicates from Sorted List II\.
83 - Remove Duplicates from Sorted List\.
84 - Largest Rectangle in Histogram\.
85 - Maximal Rectangle\.
86 - Partition List\.
87 - Scramble String\.
88 - Merge Sorted Array\.
89 - Gray Code\.
90 - Subsets II\.
91 - Decode Ways\.
92 - Reverse Linked List II\.
93 - Restore IP Addresses\.
94 - Binary Tree Inorder Traversal\.
95 - Unique Binary Search Trees II\.
96 - Unique Binary Search Trees\.
97 - Interleaving String\.
98 - Validate Binary Search Tree\.
99 - Recover Binary Search Tree\.
100 - Same Tree\.
101 - Symmetric Tree\.
102 - Binary Tree Level Order Traversal\.
103 - Binary Tree Zigzag Level Order Traversal\.
104 - Maximum Depth of Binary Tree\.
105 - Construct Binary Tree from Preorder and Inorder Traversal\.
106 - Construct Binary Tree from Inorder and Postorder Traversal\.
107 - Binary Tree Level Order Traversal II\.
108 - Convert Sorted Array to Binary Search Tree\.
109 - Convert Sorted List to Binary Search Tree\.
110 - Balanced Binary Tree\.
111 - Minimum Depth of Binary Tree\.
112 - Path Sum\.
113 - Path Sum II\.
114 - Flatten Binary Tree to Linked List\.
115 - Distinct Subsequences\.
116 - Populating Next Right Pointers in Each Node\.
117 - Populating Next Right Pointers in Each Node II\.
118 - Pascal's Triangle\.
119 - Pascal's Triangle II\.
120 - Triangle\.
121 - Best Time to Buy and Sell Stock\.
122 - Best Time to Buy and Sell Stock II\.
123 - Best Time to Buy and Sell Stock III\.
124 - Binary Tree Maximum Path Sum\.
125 - Valid Palindrome\.
126 - Word Ladder II\.
127 - Word Ladder\.
128 - Longest Consecutive Sequence\.
129 - Sum Root to Leaf Numbers\.
130 - Surrounded Regions\.
131 - Palindrome Partitioning\.
132 - Palindrome Partitioning II\.
133 - Clone Graph\.
134 - Gas Station\.
135 - Candy\.
136 - Single Number\.
137 - Single Number II\.
138 - Copy List with Random Pointer\.
139 - Word Break\.
140 - Word Break II\.
141 - Linked List Cycle\.
142 - Linked List Cycle II\.
143 - Reorder List\.
144 - Binary Tree Preorder Traversal\.
145 - Binary Tree Postorder Traversal\.
147 - Insertion Sort List\.
148 - Sort List\.
149 - Max Points on a Line\.
150 - Evaluate Reverse Polish Notation\.
151 - Reverse Words in a String\.
152 - Maximum Product Subarray\.
153 - Find Minimum in Rotated Sorted Array\.
154 - Find Minimum in Rotated Sorted Array II\.
160 - Intersection of Two Linked Lists\.
162 - Find Peak Element\.
164 - Maximum Gap\.
165 - Compare Version Numbers\.
166 - Fraction to Recurring Decimal\.
167 - Two Sum II - Input Array Is Sorted\.
168 - Excel Sheet Column Title\.
169 - Majority Element\.
171 - Excel Sheet Column Number\.
172 - Factorial Trailing Zeroes\.
174 - Dungeon Game\.
179 - Largest Number\.
187 - Repeated DNA Sequences\.
188 - Best Time to Buy and Sell Stock IV\.
189 - Rotate Array\.
190 - Reverse Bits\.
191 - Number of 1 Bits\.
198 - House Robber\.
199 - Binary Tree Right Side View\.
200 - Number of Islands\.
201 - Bitwise AND of Numbers Range\.
202 - Happy Number\.
203 - Remove Linked List Elements\.
204 - Count Primes\.
205 - Isomorphic Strings\.
206 - Reverse Linked List\.
207 - Course Schedule\.
209 - Minimum Size Subarray Sum\.
210 - Course Schedule II\.
212 - Word Search II\.
213 - House Robber II\.
214 - Shortest Palindrome\.
215 - Kth Largest Element in an Array\.
216 - Combination Sum III\.
217 - Contains Duplicate\.
218 - The Skyline Problem\.
219 - Contains Duplicate II\.
220 - Contains Duplicate III\.
221 - Maximal Square\.
222 - Count Complete Tree Nodes\.
223 - Rectangle Area\.
224 - Basic Calculator\.
226 - Invert Binary Tree\.
227 - Basic Calculator II\.
228 - Summary Ranges\.
229 - Majority Element II\.
230 - Kth Smallest Element in a BST\.
231 - Power of Two\.
233 - Number of Digit One\.
234 - Palindrome Linked List\.
235 - Lowest Common Ancestor of a Binary Search Tree\.
236 - Lowest Common Ancestor of a Binary Tree\.
237 - Delete Node in a Linked List\.
238 - Product of Array Except Self\.
239 - Sliding Window Maximum\.
240 - Search a 2D Matrix II\.
241 - Different Ways to Add Parentheses\.
242 - Valid Anagram\.
257 - Binary Tree Paths\.
258 - Add Digits\.
260 - Single Number III\.
263 - Ugly Number\.
264 - Ugly Number II\.
268 - Missing Number\.
273 - Integer to English Words\.
274 - H-Index\.
275 - H-Index II\.
278 - First Bad Version\.
279 - Perfect Squares\.
282 - Expression Add Operators\.
283 - Move Zeroes\.
287 - Find the Duplicate Number\.
289 - Game of Life\.
290 - Word Pattern\.
292 - Nim Game\.
299 - Bulls and Cows\.
300 - Longest Increasing Subsequence\.
301 - Remove Invalid Parentheses\.
306 - Additive Number\.
309 - Best Time to Buy and Sell Stock with Cooldown\.
310 - Minimum Height Trees\.
312 - Burst Balloons\.
313 - Super Ugly Number\.
315 - Count of Smaller Numbers After Self\.
316 - Remove Duplicate Letters\.
318 - Maximum Product of Word Lengths\.
319 - Bulb Switcher\.
321 - Create Maximum Number\.
322 - Coin Change\.
324 - Wiggle Sort II\.
326 - Power of Three\.
327 - Count of Range Sum\.
328 - Odd Even Linked List\.
329 - Longest Increasing Path in a Matrix\.
330 - Patching Array\.
331 - Verify Preorder Serialization of a Binary Tree\.
332 - Reconstruct Itinerary\.
334 - Increasing Triplet Subsequence\.
335 - Self Crossing\.
336 - Palindrome Pairs\.
337 - House Robber III\.
338 - Counting Bits\.
342 - Power of Four\.
343 - Integer Break\.
344 - Reverse String\.
345 - Reverse Vowels of a String\.
347 - Top K Frequent Elements\.
349 - Intersection of Two Arrays\.
350 - Intersection of Two Arrays II\.
354 - Russian Doll Envelopes\.
357 - Count Numbers with Unique Digits\.
363 - Max Sum of Rectangle No Larger Than K\.
365 - Water and Jug Problem\.
367 - Valid Perfect Square\.
368 - Largest Divisible Subset\.
371 - Sum of Two Integers\.
372 - Super Pow\.
373 - Find K Pairs with Smallest Sums\.
374 - Guess Number Higher or Lower\.
375 - Guess Number Higher or Lower II\.
376 - Wiggle Subsequence\.
377 - Combination Sum IV\.
378 - Kth Smallest Element in a Sorted Matrix\.
382 - Linked List Random Node\.
383 - Ransom Note\.
384 - Shuffle an Array\.
385 - Mini Parser\.
386 - Lexicographical Numbers\.
387 - First Unique Character in a String\.
388 - Longest Absolute File Path\.
389 - Find the Difference\.
390 - Elimination Game\.
391 - Perfect Rectangle\.
392 - Is Subsequence\.
393 - UTF-8 Validation\.
394 - Decode String\.
395 - Longest Substring with At Least K Repeating Characters\.
396 - Rotate Function\.
397 - Integer Replacement\.
398 - Random Pick Index\.
399 - Evaluate Division\.
400 - Nth Digit\.
401 - Binary Watch\.
402 - Remove K Digits\.
403 - Frog Jump\.
404 - Sum of Left Leaves\.
405 - Convert a Number to Hexadecimal\.
406 - Queue Reconstruction by Height\.
407 - Trapping Rain Water II\.
409 - Longest Palindrome\.
410 - Split Array Largest Sum\.
412 - Fizz Buzz\.
413 - Arithmetic Slices\.
414 - Third Maximum Number\.
415 - Add Strings\.
416 - Partition Equal Subset Sum\.
417 - Pacific Atlantic Water Flow\.
419 - Battleships in a Board\.
420 - Strong Password Checker\.
421 - Maximum XOR of Two Numbers in an Array\.
423 - Reconstruct Original Digits from English\.
424 - Longest Repeating Character Replacement\.
427 - Construct Quad Tree\.
429 - N-ary Tree Level Order Traversal\.
430 - Flatten a Multilevel Doubly Linked List\.
433 - Minimum Genetic Mutation\.
434 - Number of Segments in a String\.
435 - Non-overlapping Intervals\.
436 - Find Right Interval\.
437 - Path Sum III\.
438 - Find All Anagrams in a String\.
440 - K-th Smallest in Lexicographical Order\.
441 - Arranging Coins\.
442 - Find All Duplicates in an Array\.
443 - String Compression\.
445 - Add Two Numbers II\.
446 - Arithmetic Slices II - Subsequence\.
447 - Number of Boomerangs\.
448 - Find All Numbers Disappeared in an Array\.
450 - Delete Node in a BST\.
451 - Sort Characters By Frequency\.
452 - Minimum Number of Arrows to Burst Balloons\.
453 - Minimum Moves to Equal Array Elements\.
454 - 4Sum II\.
455 - Assign Cookies\.
456 - 132 Pattern\.
457 - Circular Array Loop\.
458 - Poor Pigs\.
459 - Repeated Substring Pattern\.
461 - Hamming Distance\.
462 - Minimum Moves to Equal Array Elements II\.
463 - Island Perimeter\.
464 - Can I Win\.
466 - Count The Repetitions\.
467 - Unique Substrings in Wraparound String\.
468 - Validate IP Address\.
470 - Implement Rand10() Using Rand7()\.
472 - Concatenated Words\.
473 - Matchsticks to Square\.
474 - Ones and Zeroes\.
475 - Heaters\.
476 - Number Complement\.
477 - Total Hamming Distance\.
478 - Generate Random Point in a Circle\.
479 - Largest Palindrome Product\.
480 - Sliding Window Median\.
481 - Magical String\.
482 - License Key Formatting\.
483 - Smallest Good Base\.
485 - Max Consecutive Ones\.
486 - Predict the Winner\.
488 - Zuma Game\.
491 - Increasing Subsequences\.
492 - Construct the Rectangle\.
493 - Reverse Pairs\.
494 - Target Sum\.
495 - Teemo Attacking\.
496 - Next Greater Element I\.
497 - Random Point in Non-overlapping Rectangles\.
498 - Diagonal Traverse\.
500 - Keyboard Row\.
501 - Find Mode in Binary Search Tree\.
502 - IPO\.
503 - Next Greater Element II\.
504 - Base 7\.
506 - Relative Ranks\.
507 - Perfect Number\.
508 - Most Frequent Subtree Sum\.
509 - Fibonacci Number\.
513 - Find Bottom Left Tree Value\.
514 - Freedom Trail\.
515 - Find Largest Value in Each Tree Row\.
516 - Longest Palindromic Subsequence\.
517 - Super Washing Machines\.
518 - Coin Change 2\.
519 - Random Flip Matrix\.
520 - Detect Capital\.
521 - Longest Uncommon Subsequence I\.
522 - Longest Uncommon Subsequence II\.
523 - Continuous Subarray Sum\.
524 - Longest Word in Dictionary through Deleting\.
525 - Contiguous Array\.
526 - Beautiful Arrangement\.
528 - Random Pick with Weight\.
529 - Minesweeper\.
530 - Minimum Absolute Difference in BST\.
532 - K-diff Pairs in an Array\.
537 - Complex Number Multiplication\.
538 - Convert BST to Greater Tree\.
539 - Minimum Time Difference\.
540 - Single Element in a Sorted Array\.
541 - Reverse String II\.
542 - 01 Matrix\.
543 - Diameter of Binary Tree\.
546 - Remove Boxes\.
547 - Number of Provinces\.
551 - Student Attendance Record I\.
552 - Student Attendance Record II\.
553 - Optimal Division\.
554 - Brick Wall\.
556 - Next Greater Element III\.
557 - Reverse Words in a String III\.
558 - Logical OR of Two Binary Grids Represented as Quad-Trees\.
559 - Maximum Depth of N-ary Tree\.
560 - Subarray Sum Equals K\.
561 - Array Partition I\.
563 - Binary Tree Tilt\.
564 - Find the Closest Palindrome\.
565 - Array Nesting\.
566 - Reshape the Matrix\.
567 - Permutation in String\.
572 - Subtree of Another Tree\.
575 - Distribute Candies\.
576 - Out of Boundary Paths\.
581 - Shortest Unsorted Continuous Subarray\.
583 - Delete Operation for Two Strings\.
587 - Erect the Fence\.
589 - N-ary Tree Preorder Traversal\.
590 - N-ary Tree Postorder Traversal\.
591 - Tag Validator\.
592 - Fraction Addition and Subtraction\.
593 - Valid Square\.
594 - Longest Harmonious Subsequence\.
598 - Range Addition II\.
599 - Minimum Index Sum of Two Lists\.
600 - Non-negative Integers without Consecutive Ones\.
605 - Can Place Flowers\.
606 - Construct String from Binary Tree\.
609 - Find Duplicate File in System\.
611 - Valid Triangle Number\.
617 - Merge Two Binary Trees\.
621 - Task Scheduler\.
623 - Add One Row to Tree\.
628 - Maximum Product of Three Numbers\.
629 - K Inverse Pairs Array\.
630 - Course Schedule III\.
 
633 - Sum of Square Numbers\.
636 - Exclusive Time of Functions\.
637 - Average of Levels in Binary Tree\.
638 - Shopping Offers\.
639 - Decode Ways II\.
640 - Solve the Equation\.
643 - Maximum Average Subarray I\.
645 - Set Mismatch\.
646 - Maximum Length of Pair Chain\.
647 - Palindromic Substrings\.
648 - Replace Words\.
649 - Dota2 Senate\.
650 - 2 Keys Keyboard\.
652 - Find Duplicate Subtrees\.
653 - Two Sum IV - Input is a BST\.
654 - Maximum Binary Tree\.
655 - Print Binary Tree\.
657 - Robot Return to Origin\.
658 - Find K Closest Elements\.
659 - Split Array into Consecutive Subsequences\.
661 - Image Smoother\.
662 - Maximum Width of Binary Tree\.
664 - Strange Printer\.
665 - Non-decreasing Array\.
667 - Beautiful Arrangement II\.
668 - Kth Smallest Number in Multiplication Table\.
669 - Trim a Binary Search Tree\.
670 - Maximum Swap\.
671 - Second Minimum Node In a Binary Tree\.
672 - Bulb Switcher II\.
673 - Number of Longest Increasing Subsequence\.
674 - Longest Continuous Increasing Subsequence\.
675 - Cut Off Trees for Golf Event\.
678 - Valid Parenthesis String\.
679 - 24 Game\.
680 - Valid Palindrome II\.
682 - Baseball Game\.
684 - Redundant Connection\.
685 - Redundant Connection II\.
686 - Repeated String Match\.
687 - Longest Univalue Path\.
688 - Knight Probability in Chessboard\.
689 - Maximum Sum of 3 Non-Overlapping Subarrays\.
690 - Employee Importance\.
691 - Stickers to Spell Word\.
692 - Top K Frequent Words\.
693 - Binary Number with Alternating Bits\.
695 - Max Area of Island\.
696 - Count Binary Substrings\.
697 - Degree of an Array\.
698 - Partition to K Equal Sum Subsets\.
699 - Falling Squares\.
700 - Search in a Binary Search Tree\.
701 - Insert into a Binary Search Tree\.
704 - Binary Search\.
709 - To Lower Case\.
710 - Random Pick with Blacklist\.
712 - Minimum ASCII Delete Sum for Two Strings\.
713 - Subarray Product Less Than K\.
714 - Best Time to Buy and Sell Stock with Transaction Fee\.
717 - 1-bit and 2-bit Characters\.
718 - Maximum Length of Repeated Subarray\.
719 - Find K-th Smallest Pair Distance\.
720 - Longest Word in Dictionary\.
721 - Accounts Merge\.
722 - Remove Comments\.
724 - Find Pivot Index\.
725 - Split Linked List in Parts\.
726 - Number of Atoms\.
728 - Self Dividing Numbers\.
730 - Count Different Palindromic Subsequences\.
733 - Flood Fill\.
735 - Asteroid Collision\.
736 - Parse Lisp Expression\.
738 - Monotone Increasing Digits\.
739 - Daily Temperatures\.
740 - Delete and Earn\.
741 - Cherry Pickup\.
743 - Network Delay Time\.
744 - Find Smallest Letter Greater Than Target\.
746 - Min Cost Climbing Stairs\.
747 - Largest Number At Least Twice of Others\.
748 - Shortest Completing Word\.
749 - Contain Virus\.
752 - Open the Lock\.
753 - Cracking the Safe\.
754 - Reach a Number\.
756 - Pyramid Transition Matrix\.
757 - Set Intersection Size At Least Two\.
761 - Special Binary String\.
762 - Prime Number of Set Bits in Binary Representation\.
763 - Partition Labels\.
764 - Largest Plus Sign\.
765 - Couples Holding Hands\.
766 - Toeplitz Matrix\.
767 - Reorganize String\.
768 - Max Chunks To Make Sorted II\.
769 - Max Chunks To Make Sorted\.
770 - Basic Calculator IV\.
771 - Jewels and Stones\.
773 - Sliding Puzzle\.
775 - Global and Local Inversions\.
777 - Swap Adjacent in LR String\.
778 - Swim in Rising Water\.
779 - K-th Symbol in Grammar\.
780 - Reaching Points\.
781 - Rabbits in Forest\.
782 - Transform to Chessboard\.
783 - Minimum Distance Between BST Nodes\.
784 - Letter Case Permutation\.
785 - Is Graph Bipartite?
786 - K-th Smallest Prime Fraction\.
787 - Cheapest Flights Within K Stops\.
788 - Rotated Digits\.
789 - Escape The Ghosts\.
790 - Domino and Tromino Tiling\.
791 - Custom Sort String\.
792 - Number of Matching Subsequences\.
793 - Preimage Size of Factorial Zeroes Function\.
794 - Valid Tic-Tac-Toe State\.
795 - Number of Subarrays with Bounded Maximum\.
796 - Rotate String\.
797 - All Paths From Source to Target\.
798 - Smallest Rotation with Highest Score\.
799 - Champagne Tower\.
801 - Minimum Swaps To Make Sequences Increasing\.
802 - Find Eventual Safe States\.
803 - Bricks Falling When Hit\.
804 - Unique Morse Code Words\.
805 - Split Array With Same Average\.
806 - Number of Lines To Write String\.
807 - Max Increase to Keep City Skyline\.
808 - Soup Servings\.
809 - Expressive Words\.
810 - Chalkboard XOR Game\.
811 - Subdomain Visit Count\.
812 - Largest Triangle Area\.
813 - Largest Sum of Averages\.
814 - Binary Tree Pruning\.
815 - Bus Routes\.
816 - Ambiguous Coordinates\.
817 - Linked List Components\.
818 - Race Car\.
819 - Most Common Word\.
820 - Short Encoding of Words\.
821 - Shortest Distance to a Character\.
822 - Card Flipping Game\.
823 - Binary Trees With Factors\.
824 - Goat Latin\.
825 - Friends Of Appropriate Ages\.
826 - Most Profit Assigning Work\.
827 - Making A Large Island\.
828 - Count Unique Characters of All Substrings of a Given String\.
829 - Consecutive Numbers Sum\.
830 - Positions of Large Groups\.
831 - Masking Personal Information\.
832 - Flipping an Image\.
833 - Find And Replace in String\.
834 - Sum of Distances in Tree\.
835 - Image Overlap\.
836 - Rectangle Overlap\.
837 - New 21 Game\.
838 - Push Dominoes\.
839 - Similar String Groups\.
840 - Magic Squares In Grid\.
841 - Keys and Rooms\.
842 - Split Array into Fibonacci Sequence\.
843 - Guess the Word\.
844 - Backspace String Compare\.
845 - Longest Mountain in Array\.
846 - Hand of Straights\.
847 - Shortest Path Visiting All Nodes\.
848 - Shifting Letters\.
849 - Maximize Distance to Closest Person\.
850 - Rectangle Area II\.
851 - Loud and Rich\.
852 - Peak Index in a Mountain Array\.
853 - Car Fleet\.
854 - K-Similar Strings\.
856 - Score of Parentheses\.
857 - Minimum Cost to Hire K Workers\.
858 - Mirror Reflection\.
859 - Buddy Strings\.
860 - Lemonade Change\.
861 - Score After Flipping Matrix\.
862 - Shortest Subarray with Sum at Least K\.
863 - All Nodes Distance K in Binary Tree\.
864 - Shortest Path to Get All Keys\.
865 - Smallest Subtree with all the Deepest Nodes\.
866 - Prime Palindrome\.
867 - Transpose Matrix\.
868 - Binary Gap\.
869 - Reordered Power of 2\.
870 - Advantage Shuffle\.
871 - Minimum Number of Refueling Stops\.
872 - Leaf-Similar Trees\.
873 - Length of Longest Fibonacci Subsequence\.
874 - Walking Robot Simulation\.
875 - Koko Eating Bananas\.
876 - Middle of the Linked List\.
877 - Stone Game\.
878 - Nth Magical Number\.
879 - Profitable Schemes\.
880 - Decoded String at Index\.
881 - Boats to Save People\.
882 - Reachable Nodes In Subdivided Graph\.
883 - Projection Area of 3D Shapes\.
884 - Uncommon Words from Two Sentences\.
885 - Spiral Matrix III\.
886 - Possible Bipartition\.
887 - Super Egg Drop\.
888 - Fair Candy Swap\.
889 - Construct Binary Tree from Preorder and Postorder Traversal\.
890 - Find and Replace Pattern\.
891 - Sum of Subsequence Widths\.
892 - Surface Area of 3D Shapes\.
893 - Groups of Special-Equivalent Strings\.
896 - Monotonic Array\.
897 - Increasing Order Search Tree\.
898 - Bitwise ORs of Subarrays\.
899 - Orderly Queue\.
902 - Numbers At Most N Given Digit Set\.
903 - Valid Permutations for DI Sequence\.
904 - Fruit Into Baskets\.
905 - Sort Array By Parity\.
906 - Super Palindromes\.
907 - Sum of Subarray Minimums\.
908 - Smallest Range I\.
909 - Snakes and Ladders\.
910 - Smallest Range II\.
912 - Sort an Array\.
913 - Cat and Mouse\.
914 - X of a Kind in a Deck of Cards\.
915 - Partition Array into Disjoint Intervals\.
916 - Word Subsets\.
917 - Reverse Only Letters\.
918 - Maximum Sum Circular Subarray\.
920 - Number of Music Playlists\.
921 - Minimum Add to Make Parentheses Valid\.
922 - Sort Array By Parity II\.
923 - 3Sum With Multiplicity\.
924 - Minimize Malware Spread\.
925 - Long Pressed Name\.
926 - Flip String to Monotone Increasing\.
927 - Three Equal Parts\.
928 - Minimize Malware Spread II\.
929 - Unique Email Addresses\.
930 - Binary Subarrays With Sum\.
931 - Minimum Falling Path Sum\.
932 - Beautiful Array\.
934 - Shortest Bridge\.
935 - Knight Dialer\.
936 - Stamping The Sequence\.
937 - Reorder Data in Log Files\.
938 - Range Sum of BST\.
939 - Minimum Area Rectangle\.
940 - Distinct Subsequences II\.
941 - Valid Mountain Array\.
942 - DI String Match\.
943 - Find the Shortest Superstring\.
944 - Delete Columns to Make Sorted\.
945 - Minimum Increment to Make Array Unique\.
946 - Validate Stack Sequences\.
947 - Most Stones Removed with Same Row or Column\.
948 - Bag of Tokens\.
949 - Largest Time for Given Digits\.
950 - Reveal Cards In Increasing Order\.
951 - Flip Equivalent Binary Trees\.
952 - Largest Component Size by Common Factor\.
953 - Verifying an Alien Dictionary\.
954 - Array of Doubled Pairs\.
955 - Delete Columns to Make Sorted II\.
956 - Tallest Billboard\.
957 - Prison Cells After N Days\.
958 - Check Completeness of a Binary Tree\.
959 - Regions Cut By Slashes\.
960 - Delete Columns to Make Sorted III\.
961 - N-Repeated Element in Size 2N Array\.
962 - Maximum Width Ramp\.
963 - Minimum Area Rectangle II\.
964 - Least Operators to Express Number\.
965 - Univalued Binary Tree\.
966 - Vowel Spellchecker\.
967 - Numbers With Same Consecutive Differences\.
968 - Binary Tree Cameras\.
969 - Pancake Sorting\.
970 - Powerful Integers\.
971 - Flip Binary Tree To Match Preorder Traversal\.
972 - Equal Rational Numbers\.
973 - K Closest Points to Origin\.
974 - Subarray Sums Divisible by K\.
975 - Odd Even Jump\.
976 - Largest Perimeter Triangle\.
977 - Squares of a Sorted Array\.
978 - Longest Turbulent Subarray\.
979 - Distribute Coins in Binary Tree\.
980 - Unique Paths III\.
982 - Triples with Bitwise AND Equal To Zero\.
983 - Minimum Cost For Tickets\.
984 - String Without AAA or BBB\.
985 - Sum of Even Numbers After Queries\.
986 - Interval List Intersections\.
987 - Vertical Order Traversal of a Binary Tree\.
988 - Smallest String Starting From Leaf\.
989 - Add to Array-Form of Integer\.
990 - Satisfiability of Equality Equations\.
991 - Broken Calculator\.
992 - Subarrays with K Different Integers\.
993 - Cousins in Binary Tree\.
994 - Rotting Oranges\.
995 - Minimum Number of K Consecutive Bit Flips\.
996 - Number of Squareful Arrays\.
997 - Find the Town Judge\.
998 - Maximum Binary Tree II\.
999 - Available Captures for Rook\.
1000 - Minimum Cost to Merge Stones\.
1001 - Grid Illumination\.
1002 - Find Common Characters\.
1003 - Check If Word Is Valid After Substitutions\.
1004 - Max Consecutive Ones III\.
1005 - Maximize Sum Of Array After K Negations\.
1006 - Clumsy Factorial\.
1007 - Minimum Domino Rotations For Equal Row\.
1008 - Construct Binary Search Tree from Preorder Traversal\.
1009 - Complement of Base 10 Integer\.
1010 - Pairs of Songs With Total Durations Divisible by 60\.
1011 - Capacity To Ship Packages Within D Days\.
1012 - Numbers With Repeated Digits\.
1013 - Partition Array Into Three Parts With Equal Sum\.
1014 - Best Sightseeing Pair\.
1015 - Smallest Integer Divisible by K\.
1016 - Binary String With Substrings Representing 1 To N\.
1017 - Convert to Base -2\.
1018 - Binary Prefix Divisible By 5\.
1019 - Next Greater Node In Linked List\.
1020 - Number of Enclaves\.
1021 - Remove Outermost Parentheses\.
1022 - Sum of Root To Leaf Binary Numbers\.
1023 - Camelcase Matching\.
1024 - Video Stitching\.
1025 - Divisor Game\.
1026 - Maximum Difference Between Node and Ancestor\.
1027 - Longest Arithmetic Subsequence\.
1028 - Recover a Tree From Preorder Traversal\.
1029 - Two City Scheduling\.
1030 - Matrix Cells in Distance Order\.
1031 - Maximum Sum of Two Non-Overlapping Subarrays\.
1033 - Moving Stones Until Consecutive\.
1034 - Coloring A Border\.
1035 - Uncrossed Lines\.
1036 - Escape a Large Maze\.
1037 - Valid Boomerang\.
1038 - Binary Search Tree to Greater Sum Tree\.
1039 - Minimum Score Triangulation of Polygon\.
1040 - Moving Stones Until Consecutive II\.
1041 - Robot Bounded In Circle\.
1042 - Flower Planting With No Adjacent\.
1043 - Partition Array for Maximum Sum\.
1044 - Longest Duplicate Substring\.
1046 - Last Stone Weight\.
1047 - Remove All Adjacent Duplicates In String\.
1048 - Longest String Chain\.
1049 - Last Stone Weight II\.
1051 - Height Checker\.
1052 - Grumpy Bookstore Owner\.
1053 - Previous Permutation With One Swap\.
1054 - Distant Barcodes\.
1071 - Greatest Common Divisor of Strings\.
1072 - Flip Columns For Maximum Number of Equal Rows\.
1073 - Adding Two Negabinary Numbers\.
1074 - Number of Submatrices That Sum to Target\.
1078 - Occurrences After Bigram\.
1079 - Letter Tile Possibilities\.
1080 - Insufficient Nodes in Root to Leaf Paths\.
1081 - Smallest Subsequence of Distinct Characters\.
1089 - Duplicate Zeros\.
1090 - Largest Values From Labels\.
1091 - Shortest Path in Binary Matrix\.
1092 - Shortest Common Supersequence\.
1093 - Statistics from a Large Sample\.
1094 - Car Pooling\.
1095 - Find in Mountain Array\.
1096 - Brace Expansion II\.
1103 - Distribute Candies to People\.
1104 - Path In Zigzag Labelled Binary Tree\.
1105 - Filling Bookcase Shelves\.
1106 - Parsing A Boolean Expression\.
1108 - Defanging an IP Address\.
1109 - Corporate Flight Bookings\.
1110 - Delete Nodes And Return Forest\.
1111 - Maximum Nesting Depth of Two Valid Parentheses Strings\.
1122 - Relative Sort Array\.
1123 - Lowest Common Ancestor of Deepest Leaves\.
1124 - Longest Well-Performing Interval\.
1125 - Smallest Sufficient Team\.
1128 - Number of Equivalent Domino Pairs\.
1129 - Shortest Path with Alternating Colors\.
1130 - Minimum Cost Tree From Leaf Values\.
1131 - Maximum of Absolute Value Expression\.
1137 - N-th Tribonacci Number\.
1138 - Alphabet Board Path\.
1139 - Largest 1-Bordered Square\.
1140 - Stone Game II\.
1143 - Longest Common Subsequence\.
1144 - Decrease Elements To Make Array Zigzag\.
1145 - Binary Tree Coloring Game\.
1147 - Longest Chunked Palindrome Decomposition\.
1154 - Day of the Year\.
1155 - Number of Dice Rolls With Target Sum\.
1156 - Swap For Longest Repeated Character Substring\.
1160 - Find Words That Can Be Formed by Characters\.
1161 - Maximum Level Sum of a Binary Tree\.
1162 - As Far from Land as Possible\.
1163 - Last Substring in Lexicographical Order\.
1169 - Invalid Transactions\.
1170 - Compare Strings by Frequency of the Smallest Character\.
1171 - Remove Zero Sum Consecutive Nodes from Linked List\.
1175 - Prime Arrangements\.
1177 - Can Make Palindrome from Substring\.
1178 - Number of Valid Words for Each Puzzle\.
1184 - Distance Between Bus Stops\.
1185 - Day of the Week\.
1186 - Maximum Subarray Sum with One Deletion\.
1187 - Make Array Strictly Increasing\.
1189 - Maximum Number of Balloons\.
1190 - Reverse Substrings Between Each Pair of Parentheses\.
1191 - K-Concatenation Maximum Sum\.
1192 - Critical Connections in a Network\.
1200 - Minimum Absolute Difference\.
1201 - Ugly Number III\.
1202 - Smallest String With Swaps\.
1203 - Sort Items by Groups Respecting Dependencies\.
1207 - Unique Number of Occurrences\.
1208 - Get Equal Substrings Within Budget\.
1209 - Remove All Adjacent Duplicates in String II\.
1210 - Minimum Moves to Reach Target with Rotations\.
1217 - Minimum Cost to Move Chips to The Same Position\.
1218 - Longest Arithmetic Subsequence of Given Difference\.
1219 - Path with Maximum Gold\.
1220 - Count Vowels Permutation\.
1221 - Split a String in Balanced Strings\.
1222 - Queens That Can Attack the King\.
1223 - Dice Roll Simulation\.
1224 - Maximum Equal Frequency\.
1227 - Airplane Seat Assignment Probability\.
1232 - Check If It Is a Straight Line\.
1233 - Remove Sub-Folders from the Filesystem\.
1234 - Replace the Substring for Balanced String\.
1235 - Maximum Profit in Job Scheduling\.
1237 - Find Positive Integer Solution for a Given Equation\.
1238 - Circular Permutation in Binary Representation\.
1239 - Maximum Length of a Concatenated String with Unique Characters\.
1240 - Tiling a Rectangle with the Fewest Squares\.
1247 - Minimum Swaps to Make Strings Equal\.
1248 - Count Number of Nice Subarrays\.
1249 - Minimum Remove to Make Valid Parentheses\.
1250 - Check If It Is a Good Array\.
1252 - Cells with Odd Values in a Matrix\.
1253 - Reconstruct a 2-Row Binary Matrix\.
1254 - Number of Closed Islands\.
1255 - Maximum Score Words Formed by Letters\.
1260 - Shift 2D Grid\.
1262 - Greatest Sum Divisible by Three\.
1263 - Minimum Moves to Move a Box to Their Target Location\.
1266 - Minimum Time Visiting All Points\.
1267 - Count Servers that Communicate\.
1268 - Search Suggestions System\.
1269 - Number of Ways to Stay in the Same Place After Some Steps\.
1275 - Find Winner on a Tic Tac Toe Game\.
1276 - Number of Burgers with No Waste of Ingredients\.
1277 - Count Square Submatrices with All Ones\.
1278 - Palindrome Partitioning III\.
1281 - Subtract the Product and Sum of Digits of an Integer\.
1282 - Group the People Given the Group Size They Belong To\.
1283 - Find the Smallest Divisor Given a Threshold\.
1284 - Minimum Number of Flips to Convert Binary Matrix to Zero Matrix\.
1287 - Element Appearing More Than 25% In Sorted Array\.
1288 - Remove Covered Intervals\.
1289 - Minimum Falling Path Sum II\.
1290 - Convert Binary Number in a Linked List to Integer\.
1291 - Sequential Digits\.
1292 - Maximum Side Length of a Square with Sum Less than or Equal to Threshold\.
1293 - Shortest Path in a Grid with Obstacles Elimination\.
1295 - Find Numbers with Even Number of Digits\.
1296 - Divide Array in Sets of K Consecutive Numbers\.
1297 - Maximum Number of Occurrences of a Substring\.
1298 - Maximum Candies You Can Get from Boxes\.
1299 - Replace Elements with Greatest Element on Right Side\.
1300 - Sum of Mutated Array Closest to Target\.
1301 - Number of Paths with Max Score\.
1302 - Deepest Leaves Sum\.
1304 - Find N Unique Integers Sum up to Zero\.
1305 - All Elements in Two Binary Search Trees\.
1306 - Jump Game III\.
1307 - Verbal Arithmetic Puzzle\.
1309 - Decrypt String from Alphabet to Integer Mapping\.
1310 - XOR Queries of a Subarray\.
1311 - Get Watched Videos by Your Friends\.
1312 - Minimum Insertion Steps to Make a String Palindrome\.
1313 - Decompress Run-Length Encoded List\.
1314 - Matrix Block Sum\.
1315 - Sum of Nodes with Even-Valued Grandparent\.
1316 - Distinct Echo Substrings\.
1317 - Convert Integer to the Sum of Two No-Zero Integers\.
1318 - Minimum Flips to Make a OR b Equal to c\.
1319 - Number of Operations to Make Network Connected\.
1320 - Minimum Distance to Type a Word Using Two Fingers\.
1323 - Maximum 69 Number\.
1324 - Print Words Vertically\.
1325 - Delete Leaves With a Given Value\.
1326 - Minimum Number of Taps to Open to Water a Garden\.
1328 - Break a Palindrome\.
1329 - Sort the Matrix Diagonally\.
1330 - Reverse Subarray To Maximize Array Value\.
1331 - Rank Transform of an Array\.
1332 - Remove Palindromic Subsequences\.
1333 - Filter Restaurants by Vegan-Friendly, Price and Distance\.
1334 - Find the City With the Smallest Number of Neighbors at a Threshold Distance\.
1335 - Minimum Difficulty of a Job Schedule\.
1337 - The K Weakest Rows in a Matrix\.
1338 - Reduce Array Size to The Half\.
1339 - Maximum Product of Splitted Binary Tree\.
1340 - Jump Game V\.
1342 - Number of Steps to Reduce a Number to Zero\.
1343 - Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold\.
1344 - Angle Between Hands of a Clock\.
1345 - Jump Game IV\.
1346 - Check If N and Its Double Exist\.
1347 - Minimum Number of Steps to Make Two Strings Anagram\.
1349 - Maximum Students Taking Exam\.
1351 - Count Negative Numbers in a Sorted Matrix\.
1353 - Maximum Number of Events That Can Be Attended\.
1354 - Construct Target Array With Multiple Sums\.
1356 - Sort Integers by The Number of 1 Bits\.
1358 - Number of Substrings Containing All Three Characters\.
1359 - Count All Valid Pickup and Delivery Options\.
1360 - Number of Days Between Two Dates\.
1361 - Validate Binary Tree Nodes\.
1362 - Closest Divisors\.
1363 - Largest Multiple of Three\.
1365 - How Many Numbers Are Smaller Than the Current Number\.
1366 - Rank Teams by Votes\.
1367 - Linked List in Binary Tree\.
1368 - Minimum Cost to Make at Least One Valid Path in a Grid\.
1370 - Increasing Decreasing String\.
1371 - Find the Longest Substring Containing Vowels in Even Counts\.
1372 - Longest ZigZag Path in a Binary Tree\.
1373 - Maximum Sum BST in Binary Tree\.
1374 - Generate a String With Characters That Have Odd Counts\.
1375 - Number of Times Binary String Is Prefix-Aligned\.
1376 - Time Needed to Inform All Employees\.
1377 - Frog Position After T Seconds\.
1379 - Find a Corresponding Node of a Binary Tree in a Clone of That Tree\.
1380 - Lucky Numbers in a Matrix\.
1382 - Balance a Binary Search Tree\.
1383 - Maximum Performance of a Team\.
1385 - Find the Distance Value Between Two Arrays\.
1386 - Cinema Seat Allocation\.
1387 - Sort Integers by The Power Value\.
1388 - Pizza With 3n Slices\.
1389 - Create Target Array in the Given Order\.
1390 - Four Divisors\.
1391 - Check if There is a Valid Path in a Grid\.
1392 - Longest Happy Prefix\.
1394 - Find Lucky Integer in an Array\.
1395 - Count Number of Teams\.
1397 - Find All Good Strings\.
1399 - Count Largest Group\.
1400 - Construct K Palindrome Strings\.
1401 - Circle and Rectangle Overlapping\.
1402 - Reducing Dishes\.
1403 - Minimum Subsequence in Non-Increasing Order\.
1404 - Number of Steps to Reduce a Number in Binary Representation to One\.
1405 - Longest Happy String\.
1406 - Stone Game III\.
1408 - String Matching in an Array\.
1409 - Queries on a Permutation With Key\.
1410 - HTML Entity Parser\.
1411 - Number of Ways to Paint N × 3 Grid\.
1413 - Minimum Value to Get Positive Step by Step Sum\.
1414 - Find the Minimum Number of Fibonacci Numbers Whose Sum Is K\.
1415 - The k-th Lexicographical String of All Happy Strings of Length n\.
1416 - Restore The Array\.
1417 - Reformat The String\.
1418 - Display Table of Food Orders in a Restaurant\.
1419 - Minimum Number of Frogs Croaking\.
1420 - Build Array Where You Can Find The Maximum Exactly K Comparisons\.
1422 - Maximum Score After Splitting a String\.
1423 - Maximum Points You Can Obtain from Cards\.
1424 - Diagonal Traverse II\.
1425 - Constrained Subsequence Sum\.
1431 - Kids With the Greatest Number of Candies\.
1432 - Max Difference You Can Get From Changing an Integer\.
1433 - Check If a String Can Break Another String\.
1434 - Number of Ways to Wear Different Hats to Each Other\.
1436 - Destination City\.
1437 - Check If All 1's Are at Least Length K Places Away\.
1438 - Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit\.
1439 - Find the Kth Smallest Sum of a Matrix With Sorted Rows\.
1441 - Build an Array With Stack Operations\.
1442 - Count Triplets That Can Form Two Arrays of Equal XOR\.
1443 - Minimum Time to Collect All Apples in a Tree\.
1444 - Number of Ways of Cutting a Pizza\.
1446 - Consecutive Characters\.
1447 - Simplified Fractions\.
1448 - Count Good Nodes in Binary Tree\.
1449 - Form Largest Integer With Digits That Add up to Target\.
1450 - Number of Students Doing Homework at a Given Time\.
1451 - Rearrange Words in a Sentence\.
1452 - People Whose List of Favorite Companies Is Not a Subset of Another List\.
1453 - Maximum Number of Darts Inside of a Circular Dartboard\.
1455 - Check If a Word Occurs As a Prefix of Any Word in a Sentence\.
1456 - Maximum Number of Vowels in a Substring of Given Length\.
1457 - Pseudo-Palindromic Paths in a Binary Tree\.
1458 - Max Dot Product of Two Subsequences\.
1460 - Make Two Arrays Equal by Reversing Sub-arrays\.
1461 - Check If a String Contains All Binary Codes of Size K\.
1462 - Course Schedule IV\.
1463 - Cherry Pickup II\.
1464 - Maximum Product of Two Elements in an Array\.
1465 - Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts\.
1466 - Reorder Routes to Make All Paths Lead to the City Zero\.
1467 - Probability of a Two Boxes Having The Same Number of Distinct Balls\.
1470 - Shuffle the Array\.
1471 - The k Strongest Values in an Array\.
1473 - Paint House III\.
1475 - Final Prices With a Special Discount in a Shop\.
1477 - Find Two Non-overlapping Sub-arrays Each With Target Sum\.
1478 - Allocate Mailboxes\.
1480 - Running Sum of 1d Array\.
1481 - Least Number of Unique Integers after K Removals\.
1482 - Minimum Number of Days to Make m Bouquets\.
1486 - XOR Operation in an Array\.
1487 - Making File Names Unique\.
1488 - Avoid Flood in The City\.
1489 - Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree\.
1491 - Average Salary Excluding the Minimum and Maximum Salary\.
1492 - The kth Factor of n\.
1493 - Longest Subarray of 1's After Deleting One Element\.
1494 - Parallel Courses II\.
1496 - Path Crossing\.
1497 - Check If Array Pairs Are Divisible by k\.
1498 - Number of Subsequences That Satisfy the Given Sum Condition\.
1499 - Max Value of Equation\.
1502 - Can Make Arithmetic Progression From Sequence\.
1503 - Last Moment Before All Ants Fall Out of a Plank\.
1504 - Count Submatrices With All Ones\.
1505 - Minimum Possible Integer After at Most K Adjacent Swaps On Digits\.
1507 - Reformat Date\.
1508 - Range Sum of Sorted Subarray Sums\.
1509 - Minimum Difference Between Largest and Smallest Value in Three Moves\.
1510 - Stone Game IV\.
1512 - Number of Good Pairs\.
1513 - Number of Substrings With Only 1s\.
1514 - Path with Maximum Probability\.
1515 - Best Position for a Service Centre\.
1518 - Water Bottles\.
1519 - Number of Nodes in the Sub-Tree With the Same Label\.
1520 - Maximum Number of Non-Overlapping Substrings\.
1521 - Find a Value of a Mysterious Function Closest to Target\.
1523 - Count Odd Numbers in an Interval Range\.
1524 - Number of Sub-arrays With Odd Sum\.
1525 - Number of Good Ways to Split a String\.
1526 - Minimum Number of Increments on Subarrays to Form a Target Array\.
1528 - Shuffle String\.
1529 - Minimum Suffix Flips\.
1530 - Number of Good Leaf Nodes Pairs\.
1531 - String Compression II\.
1534 - Count Good Triplets\.
1535 - Find the Winner of an Array Game\.
1536 - Minimum Swaps to Arrange a Binary Grid\.
1537 - Get the Maximum Score\.
1539 - Kth Missing Positive Number\.
1540 - Can Convert String in K Moves\.
1541 - Minimum Insertions to Balance a Parentheses String\.
1542 - Find Longest Awesome Substring\.
1544 - Make The String Great\.
1545 - Find Kth Bit in Nth Binary String\.
1546 - Maximum Number of Non-Overlapping Subarrays With Sum Equals Target\.
1547 - Minimum Cost to Cut a Stick\.
1550 - Three Consecutive Odds\.
1551 - Minimum Operations to Make Array Equal\.
1552 - Magnetic Force Between Two Balls\.
1553 - Minimum Number of Days to Eat N Oranges\.
1556 - Thousand Separator\.
1557 - Minimum Number of Vertices to Reach All Nodes\.
1558 - Minimum Numbers of Function Calls to Make Target Array\.
1559 - Detect Cycles in 2D Grid\.
1560 - Most Visited Sector in a Circular Track\.
1561 - Maximum Number of Coins You Can Get\.
1562 - Find Latest Group of Size M\.
1563 - Stone Game V\.
1566 - Detect Pattern of Length M Repeated K or More Times\.
1567 - Maximum Length of Subarray With Positive Product\.
1568 - Minimum Number of Days to Disconnect Island\.
1569 - Number of Ways to Reorder Array to Get Same BST\.
1572 - Matrix Diagonal Sum\.
1573 - Number of Ways to Split a String\.
1574 - Shortest Subarray to be Removed to Make Array Sorted\.
1575 - Count All Possible Routes\.
1576 - Replace All ?'
1577 - Number of Ways Where Square of Number Is Equal to Product of Two Numbers\.
1578 - Minimum Time to Make Rope Colorful\.
1579 - Remove Max Number of Edges to Keep Graph Fully Traversable\.
1582 - Special Positions in a Binary Matrix\.
1583 - Count Unhappy Friends\.
1584 - Min Cost to Connect All Points\.
1585 - Check If String Is Transformable With Substring Sort Operations\.
1588 - Sum of All Odd Length Subarrays\.
1589 - Maximum Sum Obtained of Any Permutation\.
1590 - Make Sum Divisible by P\.
1591 - Strange Printer II\.
1592 - Rearrange Spaces Between Words\.
1593 - Split a String Into the Max Number of Unique Substrings\.
1594 - Maximum Non Negative Product in a Matrix\.
1595 - Minimum Cost to Connect Two Groups of Points\.
1598 - Crawler Log Folder\.
1599 - Maximum Profit of Operating a Centennial Wheel\.
1601 - Maximum Number of Achievable Transfer Requests\.
1604 - Alert Using Same Key-Card Three or More Times in a One Hour Period\.
1605 - Find Valid Matrix Given Row and Column Sums\.
1606 - Find Servers That Handled Most Number of Requests\.
1608 - Special Array With X Elements Greater Than or Equal X\.
1609 - Even Odd Tree\.
1610 - Maximum Number of Visible Points\.
1611 - Minimum One Bit Operations to Make Integers Zero\.
1614 - Maximum Nesting Depth of the Parentheses\.
1615 - Maximal Network Rank\.
1616 - Split Two Strings to Make Palindrome\.
1617 - Count Subtrees With Max Distance Between Cities\.
1619 - Mean of Array After Removing Some Elements\.
1620 - Coordinate With Maximum Network Quality\.
1621 - Number of Sets of K Non-Overlapping Line Segments\.
1624 - Largest Substring Between Two Equal Characters\.
1625 - Lexicographically Smallest String After Applying Operations\.
1626 - Best Team With No Conflicts\.
1627 - Graph Connectivity With Threshold\.
1629 - Slowest Key\.
1630 - Arithmetic Subarrays\.
1631 - Path With Minimum Effort\.
1632 - Rank Transform of a Matrix\.
1636 - Sort Array by Increasing Frequency\.
1637 - Widest Vertical Area Between Two Points Containing No Points\.
1638 - Count Substrings That Differ by One Character\.
1639 - Number of Ways to Form a Target String Given a Dictionary\.
1640 - Check Array Formation Through Concatenation\.
1641 - Count Sorted Vowel Strings\.
1642 - Furthest Building You Can Reach\.
1643 - Kth Smallest Instructions\.
1646 - Get Maximum in Generated Array\.
1647 - Minimum Deletions to Make Character Frequencies Unique\.
1648 - Sell Diminishing-Valued Colored Balls\.
1649 - Create Sorted Array through Instructions\.
1652 - Defuse the Bomb\.
1653 - Minimum Deletions to Make String Balanced\.
1654 - Minimum Jumps to Reach Home\.
1655 - Distribute Repeating Integers\.
1657 - Determine if Two Strings Are Close\.
1658 - Minimum Operations to Reduce X to Zero\.
1659 - Maximize Grid Happiness\.
1662 - Check If Two String Arrays are Equivalent\.
1663 - Smallest String With A Given Numeric Value\.
1664 - Ways to Make a Fair Array\.
1665 - Minimum Initial Energy to Finish Tasks\.
1668 - Maximum Repeating Substring\.
1669 - Merge In Between Linked Lists\.
1671 - Minimum Number of Removals to Make Mountain Array\.
1672 - Richest Customer Wealth\.
1673 - Find the Most Competitive Subsequence\.
1674 - Minimum Moves to Make Array Complementary\.
1675 - Minimize Deviation in Array\.
1678 - Goal Parser Interpretation\.
1679 - Max Number of K-Sum Pairs\.
1680 - Concatenation of Consecutive Binary Numbers\.
1681 - Minimum Incompatibility\.
1684 - Count the Number of Consistent Strings\.
1685 - Sum of Absolute Differences in a Sorted Array\.
1686 - Stone Game VI\.
1687 - Delivering Boxes from Storage to Ports\.
1688 - Count of Matches in Tournament\.
1689 - Partitioning Into Minimum Number Of Deci-Binary Numbers\.
1690 - Stone Game VII\.
1691 - Maximum Height by Stacking Cuboids\.
1694 - Reformat Phone Number\.
1695 - Maximum Erasure Value\.
1696 - Jump Game VI\.
1697 - Checking Existence of Edge Length Limited Paths\.
1700 - Number of Students Unable to Eat Lunch\.
1701 - Average Waiting Time\.
1702 - Maximum Binary String After Change\.
1703 - Minimum Adjacent Swaps for K Consecutive Ones\.
1704 - Determine if String Halves Are Alike\.
1705 - Maximum Number of Eaten Apples\.
1706 - Where Will the Ball Fall\.
1707 - Maximum XOR With an Element From Array\.
1710 - Maximum Units on a Truck\.
1711 - Count Good Meals\.
1712 - Ways to Split Array Into Three Subarrays\.
1713 - Minimum Operations to Make a Subsequence\.
1716 - Calculate Money in Leetcode Bank\.
1717 - Maximum Score From Removing Substrings\.
1718 - Construct the Lexicographically Largest Valid Sequence\.
1719 - Number Of Ways To Reconstruct A Tree\.
1720 - Decode XORed Array\.
1721 - Swapping Nodes in a Linked List\.
1722 - Minimize Hamming Distance After Swap Operations\.
1723 - Find Minimum Time to Finish All Jobs\.
1725 - Number Of Rectangles That Can Form The Largest Square\.
1726 - Tuple with Same Product\.
1727 - Largest Submatrix With Rearrangements\.
1728 - Cat and Mouse II\.
1732 - Find the Highest Altitude\.
1733 - Minimum Number of People to Teach\.
1734 - Decode XORed Permutation\.
1735 - Count Ways to Make Array With Product\.
1736 - Latest Time by Replacing Hidden Digits\.
1737 - Change Minimum Characters to Satisfy One of Three Conditions\.
1738 - Find Kth Largest XOR Coordinate Value\.
1739 - Building Boxes\.
1742 - Maximum Number of Balls in a Box\.
1743 - Restore the Array From Adjacent Pairs\.
1744 - Can You Eat Your Favorite Candy on Your Favorite Day?
1745 - Palindrome Partitioning IV\.
1748 - Sum of Unique Elements\.
1749 - Maximum Absolute Sum of Any Subarray\.
1750 - Minimum Length of String After Deleting Similar Ends\.
1751 - Maximum Number of Events That Can Be Attended II\.
1752 - Check if Array Is Sorted and Rotated\.
1753 - Maximum Score From Removing Stones\.
1754 - Largest Merge Of Two Strings\.
1755 - Closest Subsequence Sum\.
1758 - Minimum Changes To Make Alternating Binary String\.
1759 - Count Number of Homogenous Substrings\.
1760 - Minimum Limit of Balls in a Bag\.
1761 - Minimum Degree of a Connected Trio in a Graph\.
1763 - Longest Nice Substring\.
1764 - Form Array by Concatenating Subarrays of Another Array\.
1765 - Map of Highest Peak\.
1766 - Tree of Coprimes\.
1768 - Merge Strings Alternately\.
1769 - Minimum Number of Operations to Move All Balls to Each Box\.
1770 - Maximum Score from Performing Multiplication Operations\.
1771 - Maximize Palindrome Length From Subsequences\.
1773 - Count Items Matching a Rule\.
1774 - Closest Dessert Cost\.
1775 - Equal Sum Arrays With Minimum Number of Operations\.
1776 - Car Fleet II\.
1779 - Find Nearest Point That Has the Same X or Y Coordinate\.
1780 - Check if Number is a Sum of Powers of Three\.
1781 - Sum of Beauty of All Substrings\.
1782 - Count Pairs Of Nodes\.
1784 - Check if Binary String Has at Most One Segment of Ones\.
1785 - Minimum Elements to Add to Form a Given Sum\.
1786 - Number of Restricted Paths From First to Last Node\.
1787 - Make the XOR of All Segments Equal to Zero\.
1790 - Check if One String Swap Can Make Strings Equal\.
1791 - Find Center of Star Graph\.
1792 - Maximum Average Pass Ratio\.
1793 - Maximum Score of a Good Subarray\.
1796 - Second Largest Digit in a String\.
1798 - Maximum Number of Consecutive Values You Can Make\.
1799 - Maximize Score After N Operations\.
1800 - Maximum Ascending Subarray Sum\.
1801 - Number of Orders in the Backlog\.
1802 - Maximum Value at a Given Index in a Bounded Array\.
1803 - Count Pairs With XOR in a Range\.
1805 - Number of Different Integers in a String\.
1806 - Minimum Number of Operations to Reinitialize a Permutation\.
1807 - Evaluate the Bracket Pairs of a String\.
1808 - Maximize Number of Nice Divisors\.
1812 - Determine Color of a Chessboard Square\.
1813 - Sentence Similarity III\.
1814 - Count Nice Pairs in an Array\.
1815 - Maximum Number of Groups Getting Fresh Donuts\.
1816 - Truncate Sentence\.
1817 - Finding the Users Active Minutes\.
1818 - Minimum Absolute Sum Difference\.
1819 - Number of Different Subsequences GCDs\.
1822 - Sign of the Product of an Array\.
1823 - Find the Winner of the Circular Game\.
1824 - Minimum Sideway Jumps\.
1827 - Minimum Operations to Make the Array Increasing\.
1828 - Queries on Number of Points Inside a Circle\.
1829 - Maximum XOR for Each Query\.
1830 - Minimum Number of Operations to Make String Sorted\.
1832 - Check if the Sentence Is Pangram\.
1833 - Maximum Ice Cream Bars\.
1834 - Single-Threaded CPU\.
1835 - Find XOR Sum of All Pairs Bitwise AND\.
1837 - Sum of Digits in Base K\.
1838 - Frequency of the Most Frequent Element\.
1839 - Longest Substring Of All Vowels in Order\.
1840 - Maximum Building Height\.
1844 - Replace All Digits with Characters\.
1846 - Maximum Element After Decreasing and Rearranging\.
1847 - Closest Room\.
1848 - Minimum Distance to the Target Element\.
1849 - Splitting a String Into Descending Consecutive Values\.
1850 - Minimum Adjacent Swaps to Reach the Kth Smallest Number\.
1851 - Minimum Interval to Include Each Query\.
1854 - Maximum Population Year\.
1855 - Maximum Distance Between a Pair of Values\.
1856 - Maximum Subarray Min-Product\.
1857 - Largest Color Value in a Directed Graph\.
1859 - Sorting the Sentence\.
1860 - Incremental Memory Leak\.
1861 - Rotating the Box\.
1862 - Sum of Floored Pairs\.
1863 - Sum of All Subset XOR Totals\.
1864 - Minimum Number of Swaps to Make the Binary String Alternating\.
1866 - Number of Ways to Rearrange Sticks With K Sticks Visible\.
1869 - Longer Contiguous Segments of Ones than Zeros\.
1870 - Minimum Speed to Arrive on Time\.
1871 - Jump Game VII\.
1872 - Stone Game VIII\.
1876 - Substrings of Size Three with Distinct Characters\.
1877 - Minimize Maximum Pair Sum in Array\.
1878 - Get Biggest Three Rhombus Sums in a Grid\.
1879 - Minimum XOR Sum of Two Arrays\.
1880 - Check if Word Equals Summation of Two Words\.
1881 - Maximum Value after Insertion\.
1882 - Process Tasks Using Servers\.
1883 - Minimum Skips to Arrive at Meeting On Time\.
1884 - Egg Drop With 2 Eggs and N Floors\.
1886 - Determine Whether Matrix Can Be Obtained By Rotation\.
1887 - Reduction Operations to Make the Array Elements Equal\.
1888 - Minimum Number of Flips to Make the Binary String Alternating\.
1889 - Minimum Space Wasted From Packaging\.
1893 - Check if All the Integers in a Range Are Covered\.
1894 - Find the Student that Will Replace the Chalk\.
1895 - Largest Magic Square\.
1896 - Minimum Cost to Change the Final Value of Expression\.
1897 - Redistribute Characters to Make All Strings Equal\.
1898 - Maximum Number of Removable Characters\.
1899 - Merge Triplets to Form Target Triplet\.
1900 - The Earliest and Latest Rounds Where Players Compete\.
1901 - Find a Peak Element II\.
1903 - Largest Odd Number in String\.
1904 - The Number of Full Rounds You Have Played\.
1905 - Count Sub Islands\.
1906 - Minimum Absolute Difference Queries\.
1909 - Remove One Element to Make the Array Strictly Increasing\.
1910 - Remove All Occurrences of a Substring\.
1911 - Maximum Alternating Subsequence Sum\.
1913 - Maximum Product Difference Between Two Pairs\.
1914 - Cyclically Rotating a Grid\.
1915 - Number of Wonderful Substrings\.
1916 - Count Ways to Build Rooms in an Ant Colony\.
1920 - Build Array from Permutation\.
1921 - Eliminate Maximum Number of Monsters\.
1922 - Count Good Numbers\.
1923 - Longest Common Subpath\.
1925 - Count Square Sum Triples\.
1926 - Nearest Exit from Entrance in Maze\.
1927 - Sum Game\.
1928 - Minimum Cost to Reach Destination in Time\.
1929 - Concatenation of Array\.
1930 - Unique Length-3 Palindromic Subsequences\.
1931 - Painting a Grid With Three Different Colors\.
1932 - Merge BSTs to Create Single BST\.
1935 - Maximum Number of Words You Can Type\.
1936 - Add Minimum Number of Rungs\.
1937 - Maximum Number of Points with Cost\.
1938 - Maximum Genetic Difference Query\.
1941 - Check if All Characters Have Equal Number of Occurrences\.
1942 - The Number of the Smallest Unoccupied Chair\.
1943 - Describe the Painting\.
1944 - Number of Visible People in a Queue\.
1945 - Sum of Digits of String After Convert\.
1946 - Largest Number After Mutating Substring\.
1947 - Maximum Compatibility Score Sum\.
1948 - Delete Duplicate Folders in System\.
1952 - Three Divisors\.
1953 - Maximum Number of Weeks for Which You Can Work\.
1954 - Minimum Garden Perimeter to Collect Enough Apples\.
1955 - Count Number of Special Subsequences\.
1957 - Delete Characters to Make Fancy String\.
1958 - Check if Move is Legal\.
1959 - Minimum Total Space Wasted With K Resizing Operations\.
1960 - Maximum Product of the Length of Two Palindromic Substrings\.
1961 - Check If String Is a Prefix of Array\.
1962 - Remove Stones to Minimize the Total\.
1963 - Minimum Number of Swaps to Make the String Balanced\.
1964 - Find the Longest Valid Obstacle Course at Each Position\.
1967 - Number of Strings That Appear as Substrings in Word\.
1968 - Array With Elements Not Equal to Average of Neighbors\.
1969 - Minimum Non-Zero Product of the Array Elements\.
1970 - Last Day Where You Can Still Cross\.
1971 - Find if Path Exists in Graph\.
1974 - Minimum Time to Type Word Using Special Typewriter\.
1975 - Maximum Matrix Sum\.
1976 - Number of Ways to Arrive at Destination\.
1977 - Number of Ways to Separate Numbers\.
1979 - Find Greatest Common Divisor of Array\.
1980 - Find Unique Binary String\.
1981 - Minimize the Difference Between Target and Chosen Elements\.
1982 - Find Array Given Subset Sums\.
1984 - Minimum Difference Between Highest and Lowest of K Scores\.
1985 - Find the Kth Largest Integer in the Array\.
1986 - Minimum Number of Work Sessions to Finish the Tasks\.
1987 - Number of Unique Good Subsequences\.
1991 - Find the Middle Index in Array\.
1992 - Find All Groups of Farmland\.
1994 - The Number of Good Subsets\.
1995 - Count Special Quadruplets\.
1996 - The Number of Weak Characters in the Game\.
1997 - First Day Where You Have Been in All the Rooms\.
1998 - GCD Sort of an Array\.
2000 - Reverse Prefix of Word\.
2001 - Number of Pairs of Interchangeable Rectangles\.
2002 - Maximum Product of the Length of Two Palindromic Subsequences\.
2003 - Smallest Missing Genetic Value in Each Subtree\.
2006 - Count Number of Pairs With Absolute Difference K\.
2007 - Find Original Array From Doubled Array\.
2008 - Maximum Earnings From Taxi\.
2009 - Minimum Number of Operations to Make Array Continuous\.
2011 - Final Value of Variable After Performing Operations\.
2012 - Sum of Beauty in the Array\.
2014 - Longest Subsequence Repeated k Times\.
2016 - Maximum Difference Between Increasing Elements\.
2017 - Grid Game\.
2018 - Check if Word Can Be Placed In Crossword\.
2019 - The Score of Students Solving Math Expression\.
2022 - Convert 1D Array Into 2D Array\.
2023 - Number of Pairs of Strings With Concatenation Equal to Target\.
2024 - Maximize the Confusion of an Exam\.
2025 - Maximum Number of Ways to Partition an Array\.
2027 - Minimum Moves to Convert String\.
2028 - Find Missing Observations\.
2029 - Stone Game IX\.
2030 - Smallest K-Length Subsequence With Occurrences of a Letter\.
2032 - Two Out of Three\.
2033 - Minimum Operations to Make a Uni-Value Grid\.
2035 - Partition Array Into Two Arrays to Minimize Sum Difference\.
2037 - Minimum Number of Moves to Seat Everyone\.
2038 - Remove Colored Pieces if Both Neighbors are the Same Color\.
2039 - The Time When the Network Becomes Idle\.
2040 - Kth Smallest Product of Two Sorted Arrays\.
2042 - Check if Numbers Are Ascending in a Sentence\.
2044 - Count Number of Maximum Bitwise-OR Subsets\.
2045 - Second Minimum Time to Reach Destination\.
2047 - Number of Valid Words in a Sentence\.
2048 - Next Greater Numerically Balanced Number\.
2049 - Count Nodes With the Highest Score\.
2050 - Parallel Courses III\.
2053 - Kth Distinct String in an Array\.
2054 - Two Best Non-Overlapping Events\.
2055 - Plates Between Candles\.
2056 - Number of Valid Move Combinations On Chessboard\.
2057 - Smallest Index With Equal Value\.
2058 - Find the Minimum and Maximum Number of Nodes Between Critical Points\.
2059 - Minimum Operations to Convert Number\.
2060 - Check if an Original String Exists Given Two Encoded Strings\.
2062 - Count Vowel Substrings of a String\.
2063 - Vowels of All Substrings\.
2064 - Minimized Maximum of Products Distributed to Any Store\.
2065 - Maximum Path Quality of a Graph\.
2068 - Check Whether Two Strings are Almost Equivalent\.
2070 - Most Beautiful Item for Each Query\.
2071 - Maximum Number of Tasks You Can Assign\.
2073 - Time Needed to Buy Tickets\.
2074 - Reverse Nodes in Even Length Groups\.
2075 - Decode the Slanted Ciphertext\.
2076 - Process Restricted Friend Requests\.
2078 - Two Furthest Houses With Different Colors\.
2079 - Watering Plants\.
2081 - Sum of k-Mirror Numbers\.
2085 - Count Common Words With One Occurrence\.
2086 - Minimum Number of Buckets Required to Collect Rainwater from Houses\.
2087 - Minimum Cost Homecoming of a Robot in a Grid\.
2088 - Count Fertile Pyramids in a Land\.
2089 - Find Target Indices After Sorting Array\.
2090 - K Radius Subarray Averages\.
2091 - Removing Minimum and Maximum From Array\.
2092 - Find All People With Secret\.
2094 - Finding 3-Digit Even Numbers\.
2095 - Delete the Middle Node of a Linked List\.
2096 - Step-By-Step Directions From a Binary Tree Node to Another\.
2097 - Valid Arrangement of Pairs\.
2099 - Find Subsequence of Length K With the Largest Sum\.
2100 - Find Good Days to Rob the Bank\.
2101 - Detonate the Maximum Bombs\.
2103 - Rings and Rods\.
2104 - Sum of Subarray Ranges\.
2105 - Watering Plants II\.
2106 - Maximum Fruits Harvested After at Most K Steps\.
2108 - Find First Palindromic String in the Array\.
2109 - Adding Spaces to a String\.
2110 - Number of Smooth Descent Periods of a Stock\.
2111 - Minimum Operations to Make the Array K-Increasing\.
2114 - Maximum Number of Words Found in Sentences\.
2115 - Find All Possible Recipes from Given Supplies\.
2116 - Check if a Parentheses String Can Be Valid\.
2117 - Abbreviating the Product of a Range\.
2119 - A Number After a Double Reversal\.
2120 - Execution of All Suffix Instructions Staying in a Grid\.
2121 - Intervals Between Identical Elements\.
2122 - Recover the Original Array\.
2124 - Check if All A's Appears Before All B's\.
2125 - Number of Laser Beams in a Bank\.
2126 - Destroying Asteroids\.
2127 - Maximum Employees to Be Invited to a Meeting\.
2129 - Capitalize the Title\.
2130 - Maximum Twin Sum of a Linked List\.
2131 - Longest Palindrome by Concatenating Two Letter Words\.
2132 - Stamping the Grid\.
2133 - Check if Every Row and Column Contains All Numbers\.
2134 - Minimum Swaps to Group All 1's Together II\.
2135 - Count Words Obtained After Adding a Letter\.
2136 - Earliest Possible Day of Full Bloom\.
2138 - Divide a String Into Groups of Size k\.
2139 - Minimum Moves to Reach Target Score\.
2140 - Solving Questions With Brainpower\.
2141 - Maximum Running Time of N Computers\.
2144 - Minimum Cost of Buying Candies With Discount\.
2145 - Count the Hidden Sequences\.
2146 - K Highest Ranked Items Within a Price Range\.
2147 - Number of Ways to Divide a Long Corridor\.
2148 - Count Elements With Strictly Smaller and Greater Elements\.
2149 - Rearrange Array Elements by Sign\.
2150 - Find All Lonely Numbers in the Array\.
2151 - Maximum Good People Based on Statements\.
2154 - Keep Multiplying Found Values by Two\.
2155 - All Divisions With the Highest Score of a Binary Array\.
2156 - Find Substring With Given Hash Value\.
2157 - Groups of Strings\.
2160 - Minimum Sum of Four Digit Number After Splitting Digits\.
2161 - Partition Array According to Given Pivot\.
2162 - Minimum Cost to Set Cooking Time\.
2163 - Minimum Difference in Sums After Removal of Elements\.
2164 - Sort Even and Odd Indices Independently\.
2165 - Smallest Value of the Rearranged Number\.
2167 - Minimum Time to Remove All Cars Containing Illegal Goods\.
2169 - Count Operations to Obtain Zero\.
2170 - Minimum Operations to Make the Array Alternating\.
2171 - Removing Minimum Number of Magic Beans\.
2172 - Maximum AND Sum of Array\.
2176 - Count Equal and Divisible Pairs in an Array\.
2177 - Find Three Consecutive Integers That Sum to a Given Number\.
2178 - Maximum Split of Positive Even Integers\.
2179 - Count Good Triplets in an Array\.
2180 - Count Integers With Even Digit Sum\.
2181 - Merge Nodes in Between Zeros\.
2182 - Construct String With Repeat Limit\.
2183 - Count Array Pairs Divisible by K\.
2185 - Counting Words With a Given Prefix\.
2186 - Minimum Number of Steps to Make Two Strings Anagram II\.
2187 - Minimum Time to Complete Trips\.
2188 - Minimum Time to Finish the Race\.
2190 - Most Frequent Number Following Key In an Array\.
2191 - Sort the Jumbled Numbers\.
2192 - All Ancestors of a Node in a Directed Acyclic Graph\.
2193 - Minimum Number of Moves to Make Palindrome\.
2194 - Cells in a Range on an Excel Sheet\.
2195 - Append K Integers With Minimal Sum\.
2196 - Create Binary Tree From Descriptions\.
2197 - Replace Non-Coprime Numbers in Array\.
2200 - Find All K-Distant Indices in an Array\.
2201 - Count Artifacts That Can Be Extracted\.
2202 - Maximize the Topmost Element After K Moves\.
2203 - Minimum Weighted Subgraph With the Required Paths\.
2206 - Divide Array Into Equal Pairs\.
2207 - Maximize Number of Subsequences in a String\.
2208 - Minimum Operations to Halve Array Sum\.
2209 - Minimum White Tiles After Covering With Carpets\.
2210 - Count Hills and Valleys in an Array\.
2211 - Count Collisions on a Road\.
2212 - Maximum Points in an Archery Competition\.
2213 - Longest Substring of One Repeating Character\.
2215 - Find the Difference of Two Arrays\.
2216 - Minimum Deletions to Make Array Beautiful\.
2217 - Find Palindrome With Fixed Length\.
2218 - Maximum Value of K Coins From Piles\.
2220 - Minimum Bit Flips to Convert Number\.
2221 - Find Triangular Sum of an Array\.
2222 - Number of Ways to Select Buildings\.
2223 - Sum of Scores of Built Strings\.
2224 - Minimum Number of Operations to Convert Time\.
2225 - Find Players With Zero or One Losses\.
2226 - Maximum Candies Allocated to K Children\.
2231 - Largest Number After Digit Swaps by Parity\.
2232 - Minimize Result by Adding Parentheses to Expression\.
2233 - Maximum Product After K Increments\.
2234 - Maximum Total Beauty of the Gardens\.
2235 - Add Two Integers\.
2236 - Root Equals Sum of Children\.
2239 - Find Closest Number to Zero\.
2240 - Number of Ways to Buy Pens and Pencils\.
2242 - Maximum Score of a Node Sequence\.
2243 - Calculate Digit Sum of a String\.
2244 - Minimum Rounds to Complete All Tasks\.
2245 - Maximum Trailing Zeros in a Cornered Path\.
2246 - Longest Path With Different Adjacent Characters\.
2248 - Intersection of Multiple Arrays\.
2249 - Count Lattice Points Inside a Circle\.
2250 - Count Number of Rectangles Containing Each Point\.
2251 - Number of Flowers in Full Bloom\.
2255 - Count Prefixes of a Given String\.
2256 - Minimum Average Difference\.
2257 - Count Unguarded Cells in the Grid\.
2258 - Escape the Spreading Fire\.
2259 - Remove Digit From Number to Maximize Result\.
2260 - Minimum Consecutive Cards to Pick Up\.
2261 - K Divisible Elements Subarrays\.
2262 - Total Appeal of A String\.
2264 - Largest 3-Same-Digit Number in String\.
2265 - Count Nodes Equal to Average of Subtree\.
2266 - Count Number of Texts\.
2267 - Check if There Is a Valid Parentheses String Path\.
2269 - Find the K-Beauty of a Number\.
2270 - Number of Ways to Split Array\.
2271 - Maximum White Tiles Covered by a Carpet\.
2272 - Substring With Largest Variance\.
2273 - Find Resultant Array After Removing Anagrams\.
2274 - Maximum Consecutive Floors Without Special Floors\.
2275 - Largest Combination With Bitwise AND Greater Than Zero\.
2278 - Percentage of Letter in String\.
2279 - Maximum Bags With Full Capacity of Rocks\.
2280 - Minimum Lines to Represent a Line Chart\.
2281 - Sum of Total Strength of Wizards\.
2283 - Check if Number Has Equal Digit Count and Digit Value\.
2284 - Sender With Largest Word Count\.
2285 - Maximum Total Importance of Roads\.
2287 - Rearrange Characters to Make Target String\.
2288 - Apply Discount to Prices\.
2289 - Steps to Make Array Non-decreasing\.
2290 - Minimum Obstacle Removal to Reach Corner\.
2293 - Min Max Game\.
2294 - Partition Array Such That Maximum Difference Is K\.
2295 - Replace Elements in an Array\.
2299 - Strong Password Checker II\.
2300 - Successful Pairs of Spells and Potions\.
2301 - Match Substring After Replacement\.
2302 - Count Subarrays With Score Less Than K\.
2303 - Calculate Amount Paid in Taxes\.
2304 - Minimum Path Cost in a Grid\.
2305 - Fair Distribution of Cookies\.
2306 - Naming a Company\.
2309 - Greatest English Letter in Upper and Lower Case\.
2310 - Sum of Numbers With Units Digit K\.
2311 - Longest Binary Subsequence Less Than or Equal to K\.
2312 - Selling Pieces of Wood\.
2315 - Count Asterisks\.
2316 - Count Unreachable Pairs of Nodes in an Undirected Graph\.
2317 - Maximum XOR After Operations\.
2318 - Number of Distinct Roll Sequences\.
2319 - Check if Matrix Is X-Matrix\.
2320 - Count Number of Ways to Place Houses\.
2321 - Maximum Score Of Spliced Array\.
2322 - Minimum Score After Removals on a Tree\.
2325 - Decode the Message\.
2326 - Spiral Matrix IV\.
2327 - Number of People Aware of a Secret\.
2328 - Number of Increasing Paths in a Grid\.
2331 - Evaluate Boolean Binary Tree\.
2332 - The Latest Time to Catch a Bus\.
2333 - Minimum Sum of Squared Difference\.
2334 - Subarray With Elements Greater Than Varying Threshold\.
2335 - Minimum Amount of Time to Fill Cups\.
2337 - Move Pieces to Obtain a String\.
2338 - Count the Number of Ideal Arrays\.
2341 - Maximum Number of Pairs in Array\.
2342 - Max Sum of a Pair With Equal Sum of Digits\.
2343 - Query Kth Smallest Trimmed Number\.
2344 - Minimum Deletions to Make Array Divisible\.
2347 - Best Poker Hand\.
2348 - Number of Zero-Filled Subarrays\.
2350 - Shortest Impossible Sequence of Rolls\.
2351 - First Letter to Appear Twice\.
2352 - Equal Row and Column Pairs\.
2354 - Number of Excellent Pairs\.
2357 - Make Array Zero by Subtracting Equal Amounts\.
2358 - Maximum Number of Groups Entering a Competition\.
2359 - Find Closest Node to Given Two Nodes\.
2360 - Longest Cycle in a Graph\.
2363 - Merge Similar Items\.
2364 - Count Number of Bad Pairs\.
2365 - Task Scheduler II\.
2366 - Minimum Replacements to Sort the Array\.
2367 - Number of Arithmetic Triplets\.
2368 - Reachable Nodes With Restrictions\.
2369 - Check if There is a Valid Partition For The Array\.
2370 - Longest Ideal Subsequence\.
2373 - Largest Local Values in a Matrix\.
2374 - Node With Highest Edge Score\.
2375 - Construct Smallest Number From DI String\.
2376 - Count Special Integers\.
2379 - Minimum Recolors to Get K Consecutive Black Blocks\.
2380 - Time Needed to Rearrange a Binary String\.
2381 - Shifting Letters II\.
2382 - Maximum Segment Sum After Removals\.
2383 - Minimum Hours of Training to Win a Competition\.
2384 - Largest Palindromic Number\.
2385 - Amount of Time for Binary Tree to Be Infected\.
2386 - Find the K-Sum of an Array\.
2389 - Longest Subsequence With Limited Sum\.
2390 - Removing Stars From a String\.
2391 - Minimum Amount of Time to Collect Garbage\.
2392 - Build a Matrix With Conditions\.
2395 - Find Subarrays With Equal Sum\.
2396 - Strictly Palindromic Number\.
2397 - Maximum Rows Covered by Columns\.
2398 - Maximum Number of Robots Within Budget\.
2399 - Check Distances Between Same Letters\.
2400 - Number of Ways to Reach a Position After Exactly k Steps\.
2401 - Longest Nice Subarray\.
 
2102 - Sequentially Ordinal Rank Tracker\.
2034 - Stock Price Fluctuation\.
901 - Online Stock Span\.
1032 - Stream of Characters\.
1476 - Subrectangle Queries\.
352 - Data Stream as Disjoint Intervals\.
2296 - Design a Text Editor\.
1600 - Throne Inheritance\.
981 - Time Based Key-Value Store\.
911 - Online Election\.
212 - Word Search II\.
1483 - Kth Ancestor of a Tree Node\.
 
208 - Implement Trie (Prefix Tree)\.
1348 - Tweet Counts Per Frequency\.
355 - Design Twitter\.
1396 - Design Underground System\.
278 - First Bad Version\.
211 - Design Add and Search Words Data Structure\.
745 - Prefix and Suffix Search\.
1116 - Print Zero Even Odd\.