中文 Problems # Title Languages 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 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 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 146 LRU Cache 147 Insertion 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 155 Min Stack 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 173 Binary Search Tree Iterator 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 208 Implement Trie (Prefix Tree) 209 Minimum Size Subarray Sum 210 Course Schedule II 211 Design Add and Search Words Data Structure 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 219 Contains Duplicate II 220 Contains Duplicate III 221 Maximal Square 222 Count Complete Tree Nodes 223 Rectangle Area 224 Basic Calculator 225 Implement Stack using Queues 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 232 Implement Queue using Stacks 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 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 284 Peeking Iterator 287 Find the Duplicate Number 289 Game of Life 290 Word Pattern 292 Nim Game 295 Find Median from Data Stream 297 Serialize and Deserialize Binary Tree 299 Bulls and Cows 300 Longest Increasing Subsequence 301 Remove Invalid Parentheses 303 Range Sum Query - Immutable 304 Range Sum Query 2D - Immutable 306 Additive Number 307 Range Sum Query - Mutable 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 326 Power of Three 327 Count of Range Sum 328 Odd Even Linked List 329 Longest Increasing Path in a Matrix 331 Verify Preorder Serialization of a Binary Tree 332 Reconstruct Itinerary 334 Increasing Triplet Subsequence 335 Self Crossing 337 House Robber III 338 Counting Bits 341 Flatten Nested List Iterator 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 352 Data Stream as Disjoint Intervals 354 Russian Doll Envelopes 355 Design Twitter 357 Count Numbers with Unique Digits 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 380 Insert Delete GetRandom O(1) 381 Insert Delete GetRandom O(1) - Duplicates allowed 382 Linked List Random Node 383 Ransom Note 384 Shuffle an Array 386 Lexicographical Numbers 387 First Unique Character in a String 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 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 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 432 All O`one Data Structure 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 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 449 Serialize and Deserialize BST 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 459 Repeated Substring Pattern 460 LFU Cache 461 Hamming Distance 462 Minimum Moves to Equal Array Elements II 463 Island Perimeter 464 Can I Win 467 Unique Substrings in Wraparound String 468 Validate IP Address 470 Implement Rand10() Using Rand7() 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 Non-decreasing 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 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 535 Encode and Decode TinyURL 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 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 Quad Tree Intersection 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 622 Design Circular Queue 623 Add One Row to Tree 624 Maximum Distance in Arrays 628 Maximum Product of Three Numbers 629 K Inverse Pairs Array 632 Smallest Range Covering Elements from K Lists 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 641 Design Circular Deque 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 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 676 Implement Magic Dictionary 677 Map Sum Pairs 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 703 Kth Largest Element in a Stream 704 Binary Search 705 Design HashSet 706 Design HashMap 707 Design Linked List 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 728 Self Dividing Numbers 729 My Calendar I 731 My Calendar II 733 Flood Fill 735 Asteroid Collision 738 Monotone Increasing Digits 739 Daily Temperatures 740 Delete and Earn 743 Network Delay Time 744 Find Smallest Letter Greater Than Target 745 Prefix and Suffix Search 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 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 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 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 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 851 Loud and Rich 852 Peak Index in a Mountain Array 853 Car Fleet 854 K-Similar Strings 855 Exam Room 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 894 All Possible Full Binary Trees 895 Maximum Frequency Stack 896 Monotonic Array 897 Increasing Order Search Tree 898 Bitwise ORs of Subarrays 899 Orderly Queue 900 RLE Iterator 901 Online Stock Span 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 911 Online Election 912 Sort an Array 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 919 Complete Binary Tree Inserter 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 933 Number of Recent Calls 934 Shortest Bridge 935 Knight Dialer 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 948 Bag of Tokens 949 Largest Time for Given Digits 950 Reveal Cards In Increasing Order 951 Flip Equivalent Binary Trees 953 Verifying an Alien Dictionary 954 Array of Doubled Pairs 956 Tallest Billboard 957 Prison Cells After N Days 958 Check Completeness of a Binary Tree 960 Delete Columns to Make Sorted III 961 N-Repeated Element in Size 2N Array 962 Maximum Width Ramp 963 Minimum Area Rectangle II 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 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 981 Time Based Key-Value Store 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 Interger 990 Satisfiability of Equality Equations 991 Broken Calculator 992 Subarrays with K Different Integers 993 Cousins in Binary Tree 994 Rotting Oranges 996 Number of Squareful Arrays 997 Find the Town Judge 998 Maximum Binary Tree II 999 Available Captures for Rook 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 1061 Lexicographically Smallest Equivalent String 1071 Greatest Common Divisor of Strings 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 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 1146 Snapshot Array 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 1157 Online Majority Element In Subarray 1160 Find Words That Can Be Formed by Characters 1161 Maximum Level Sum of a Binary Tree 1162 As Far from Land as Possible 1169 invalid-transactions 1170 Compare Strings by Frequency of the Smallest Character 1171 Remove Zero Sum Consecutive Nodes from Linked List 1172 Dinner Plate Stacks 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 1206 Design Skiplist 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 Play with Chips 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 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 1261 Find Elements in a Contaminated Binary Tree 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 1286 Iterator for Combination 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 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 1348 Tweet Counts Per Frequency 1349 Maximum Students Taking Exam 1351 Count Negative Numbers in a Sorted Matrix 1352 Product of the Last K Numbers 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 1357 Apply Discount Every n Orders 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 Bulb Switcher III 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 1381 Design a Stack With Increment Operation 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 1396 Design Underground System 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 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 1472 Design Browser History 1473 Paint House III 1475 Final Prices With a Special Discount in a Shop 1476 Subrectangle Queries 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 1483 Kth Ancestor of a Tree Node 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 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 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 1518 Water Bottles 1519 Number of Nodes in the Sub-Tree With the Same Label 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 Bulb Switcher IV 1530 Number of Good Leaf Nodes Pairs 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 ?'s to Avoid Consecutive Repeating Characters 1577 Number of Ways Where Square of Number Is Equal to Product of Two Numbers 1578 Minimum Time to Make Rope Colorful 1582 Special Positions in a Binary Matrix 1583 Count Unhappy Friends 1584 Min Cost to Connect All Points 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 1598 Crawler Log Folder 1599 Maximum Profit of Operating a Centennial Wheel 1600 Throne Inheritance 1601 Maximum Number of Achievable Transfer Requests 1603 Design Parking System 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 1622 Fancy Sequence 1624 Largest Substring Between Two Equal Characters 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 1656 Design an Ordered Stream 1657 Determine if Two Strings Are Close 1658 Minimum Operations to Reduce X to Zero 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 1670 Design Front Middle Back Queue 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 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 1718 Construct the Lexicographically Largest Valid Sequence 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 1732 Find the Highest Altitude 1733 Minimum Number of People to Teach 1734 Decode XORed Permutation 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 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 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 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 1797 Design Authentication Manager 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 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 1825 Finding MK Average 1827 Minimum Operations to Make the Array Increasing 1828 Queries on Number of Points Inside a Circle 1829 Maximum XOR for Each Query 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 1845 Seat Reservation Manager 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 1865 Finding Pairs With a Certain Sum 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 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 1909 Remove One Element to Make the Array Strictly Increasing 1910 Remove All Occurrences of a Substring 1911 Maximum Alternating Subsequence Sum 1912 Design Movie Rental System 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 1941 Check if All Characters Have Equal Number of Occurrences 1942 The Number of the Smallest Unoccupied Chair 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 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 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][1976l] Number of Ways to Arrive at Destination [1979][1979l] Find Greatest Common Divisor of Array [1980][1980l] Find Unique Binary String [1981][1981l] Minimize the Difference Between Target and Chosen Elements [1984][1984l] Minimum Difference Between Highest and Lowest of K Scores [1985][1985l] Find the Kth Largest Integer in the Array [1986][1986l] Minimum Number of Work Sessions to Finish the Tasks [1987][1987l] Number of Unique Good Subsequences [1991][1991l] Find the Middle Index in Array [1992][1992l] Find All Groups of Farmland [1993][1993l] Operations on Tree [1994][1994l] The Number of Good Subsets [1995][1995l] Count Special Quadruplets [1996][1996l] The Number of Weak Characters in the Game [1997][1997l] First Day Where You Have Been in All the Rooms [2000][2000l] Reverse Prefix of Word [2001][2001l] Number of Pairs of Interchangeable Rectangles [2002][2002l] Maximum Product of the Length of Two Palindromic Subsequences [2003][2003l] Smallest Missing Genetic Value in Each Subtree [2006][2006l] Count Number of Pairs With Absolute Difference K [2007][2007l] Find Original Array From Doubled Array [2008][2008l] Maximum Earnings From Taxi [2009][2009l] Minimum Number of Operations to Make Array Continuous [2011][2011l] Final Value of Variable After Performing Operations [2012][2012l] Sum of Beauty in the Array [2013][2013l] Detect Squares [2014][2014l] Longest Subsequence Repeated k Times [2016][2016l] Maximum Difference Between Increasing Elements [2017][2017l] Grid Game [2018][2018l] Check if Word Can Be Placed In Crossword [2019][2019l] The Score of Students Solving Math Expression [2022][2022l] Convert 1D Array Into 2D Array [2023][2023l] Number of Pairs of Strings With Concatenation Equal to Target [2024][2024l] Maximize the Confusion of an Exam [2025][2025l] Maximum Number of Ways to Partition an Array [2027][2027l] Minimum Moves to Convert String [2028][2028l] Find Missing Observations [2029][2029l] Stone Game IX [2030][2030l] Smallest K-Length Subsequence With Occurrences of a Letter [2032][2032l] Two Out of Three [2033][2033l] Minimum Operations to Make a Uni-Value Grid [2034][2034l] Stock Price Fluctuation [2037][2037l] Minimum Number of Moves to Seat Everyone [2038][2038l] Remove Colored Pieces if Both Neighbors are the Same Color [2039][2039l] The Time When the Network Becomes Idle [2040][2040l] Kth Smallest Product of Two Sorted Arrays [2042][2042l] Check if Numbers Are Ascending in a Sentence [2043][2043l] Simple Bank System [2044][2044l] Count Number of Maximum Bitwise-OR Subsets [2045][2045l] Second Minimum Time to Reach Destination [2047][2047l] Number of Valid Words in a Sentence [2048][2048l] Next Greater Numerically Balanced Number [2049][2049l] Count Nodes With the Highest Score [2050][2050l] Parallel Courses III [2053][2053l] Kth Distinct String in an Array [2054][2054l] Two Best Non-Overlapping Events [2055][2055l] Plates Between Candles [2057][2057l] Smallest Index With Equal Value [2058][2058l] Find the Minimum and Maximum Number of Nodes Between Critical Points [2059][2059l] Minimum Operations to Convert Number [2060][2060l] Check if an Original String Exists Given Two Encoded Strings [2062][2062l] Count Vowel Substrings of a String [2063][2063l] Vowels of All Substrings [2064][2064l] Minimized Maximum of Products Distributed to Any Store [2065][2065l] Maximum Path Quality of a Graph [2068][2068l] Check Whether Two Strings are Almost Equivalent [2069][2069l] Walking Robot Simulation II [2070][2070l] Most Beautiful Item for Each Query [2073][2073l] Time Needed to Buy Tickets [2074][2074l] Reverse Nodes in Even Length Groups [2075][2075l] Decode the Slanted Ciphertext [2076][2076l] Process Restricted Friend Requests [2078][2078l] Two Furthest Houses With Different Colors [2079][2079l] Watering Plants [2080][2080l] Range Frequency Queries [2081][2081l] Sum of k-Mirror Numbers [2085][2085l] Count Common Words With One Occurrence [2086][2086l] Minimum Number of Food Buckets to Feed the Hamsters [2087][2087l] Minimum Cost Homecoming of a Robot in a Grid [2088][2088l] Count Fertile Pyramids in a Land [2089][2089l] Find Target Indices After Sorting Array [2090][2090l] K Radius Subarray Averages [2091][2091l] Removing Minimum and Maximum From Array [2092][2092l] Find All People With Secret [2094][2094l] Finding 3-Digit Even Numbers [2095][2095l] Delete the Middle Node of a Linked List [2096][2096l] Step-By-Step Directions From a Binary Tree Node to Another [2097][2097l] Valid Arrangement of Pairs [2099][2099l] Find Subsequence of Length K With the Largest Sum [2100][2100l] Find Good Days to Rob the Bank [2101][2101l] Detonate the Maximum Bombs [2102][2102l] Sequentially Ordinal Rank Tracker [2103][2103l] Rings and Rods [2104][2104l] Sum of Subarray Ranges [2105][2105l] Watering Plants II [2106][2106l] Maximum Fruits Harvested After at Most K Steps [2108][2108l] Find First Palindromic String in the Array [2109][2109l] Adding Spaces to a String [2110][2110l] Number of Smooth Descent Periods of a Stock [2111][2111l] Minimum Operations to Make the Array K-Increasing [2114][2114l] Maximum Number of Words Found in Sentences [2115][2115l] Find All Possible Recipes from Given Supplies [2117][2117l] Abbreviating the Product of a Range [2119][2119l] A Number After a Double Reversal [2120][2120l] Execution of All Suffix Instructions Staying in a Grid [2121][2121l] Intervals Between Identical Elements [2122][2122l] Recover the Original Array [2124][2124l] Check if All A's Appears Before All B's [2125][2125l] Number of Laser Beams in a Bank [2126][2126l] Destroying Asteroids [2127][2127l] Maximum Employees to Be Invited to a Meeting [2129][2129l] Capitalize the Title [2130][2130l] Maximum Twin Sum of a Linked List [2131][2131l] Longest Palindrome by Concatenating Two Letter Words [2133][2133l] Check if Every Row and Column Contains All Numbers [2134][2134l] Minimum Swaps to Group All 1's Together II [2135][2135l] Count Words Obtained After Adding a Letter [2136][2136l] Earliest Possible Day of Full Bloom [2138][2138l] Divide a String Into Groups of Size k [2139][2139l] Minimum Moves to Reach Target Score [2140][2140l] Solving Questions With Brainpower [2141][2141l] Maximum Running Time of N Computers [2144][2144l] Minimum Cost of Buying Candies With Discount [2145][2145l] Count the Hidden Sequences [2146][2146l] K Highest Ranked Items Within a Price Range [2147][2147l] Number of Ways to Divide a Long Corridor [2148][2148l] Count Elements With Strictly Smaller and Greater Elements [2149][2149l] Rearrange Array Elements by Sign [2150][2150l] Find All Lonely Numbers in the Array [2151][2151l] Maximum Good People Based on Statements [2154][2154l] Keep Multiplying Found Values by Two [2155][2155l] All Divisions With the Highest Score of a Binary Array [2156][2156l] Find Substring With Given Hash Value [2157][2157l] Groups of Strings [2160][2160l] Minimum Sum of Four Digit Number After Splitting Digits [2161][2161l] Partition Array According to Given Pivot [2162][2162l] Minimum Cost to Set Cooking Time [2163][2163l] Minimum Difference in Sums After Removal of Elements [2164][2164l] Sort Even and Odd Indices Independently [2165][2165l] Smallest Value of the Rearranged Number [2166][2166l] Design Bitset [2167][2167l] Minimum Time to Remove All Cars Containing Illegal Goods [2169][2169l] Count Operations to Obtain Zero [2171][2171l] Removing Minimum Number of Magic Beans [2172][2172l] Maximum AND Sum of Array [2176][2176l] Count Equal and Divisible Pairs in an Array [2177][2177l] Find Three Consecutive Integers That Sum to a Given Number [2178][2178l] Maximum Split of Positive Even Integers [2179][2179l] Count Good Triplets in an Array [2180][2180l] Count Integers With Even Digit Sum [2181][2181l] Merge Nodes in Between Zeros [2182][2182l] Construct String With Repeat Limit [2185][2185l] Counting Words With a Given Prefix [2186][2186l] Minimum Number of Steps to Make Two Strings Anagram II [2187][2187l] Minimum Time to Complete Trips [2188][2188l] Minimum Time to Finish the Race [2190][2190l] Most Frequent Number Following Key In an Array [2191][2191l] Sort the Jumbled Numbers [2192][2192l] All Ancestors of a Node in a Directed Acyclic Graph [2193][2193l] Minimum Number of Moves to Make Palindrome [2194][2194l] Cells in a Range on an Excel Sheet [2195][2195l] Append K Integers With Minimal Sum [2196][2196l] Create Binary Tree From Descriptions [2197][2197l] Replace Non-Coprime Numbers in Array [2200][2200l] Find All K-Distant Indices in an Array [2201][2201l] Count Artifacts That Can Be Extracted [2202][2202l] Maximize the Topmost Element After K Moves [2203][2203l] Minimum Weighted Subgraph With the Required Paths [2206][2206l] Divide Array Into Equal Pairs [2208][2208l] Minimum Operations to Halve Array Sum [2209][2209l] Minimum White Tiles After Covering With Carpets [2210][2210l] Count Hills and Valleys in an Array [2211][2211l] Count Collisions on a Road [2212][2212l] Maximum Points in an Archery Competition [2213][2213l] Longest Substring of One Repeating Character [2215][2215l] Find the Difference of Two Arrays [2216][2216l] Minimum Deletions to Make Array Beautiful [2217][2217l] Find Palindrome With Fixed Length [2218][2218l] Maximum Value of K Coins From Piles [2220][2220l] Minimum Bit Flips to Convert Number [2221][2221l] Find Triangular Sum of an Array [2222][2222l] Number of Ways to Select Buildings [2223][2223l] Sum of Scores of Built Strings [2224][2224l] Minimum Number of Operations to Convert Time [2225][2225l] Find Players With Zero or One Losses [2226][2226l] Maximum Candies Allocated to K Children [2227][2227l] Encrypt and Decrypt Strings [2231][2231l] Largest Number After Digit Swaps by Parity [2232][2232l] Minimize Result by Adding Parentheses to Expression [2233][2233l] Maximum Product After K Increments [2234][2234l] Maximum Total Beauty of the Gardens [2235][2235l] Add Two Integers [2236][2236l] Root Equals Sum of Children [2239][2239l] Find Closest Number to Zero [2240][2240l] Number of Ways to Buy Pens and Pencils [2241][2241l] Design an ATM Machine [2242][2242l] Maximum Score of a Node Sequence [2243][2243l] Calculate Digit Sum of a String [2244][2244l] Minimum Rounds to Complete All Tasks [2245][2245l] Maximum Trailing Zeros in a Cornered Path [2246][2246l] Longest Path With Different Adjacent Characters [2248][2248l] Intersection of Multiple Arrays [2249][2249l] Count Lattice Points Inside a Circle [2250][2250l] Count Number of Rectangles Containing Each Point [2251][2251l] Number of Flowers in Full Bloom [2255][2255l] Count Prefixes of a Given String [2256][2256l] Minimum Average Difference [2257][2257l] Count Unguarded Cells in the Grid [2258][2258l] Escape the Spreading Fire [2259][2259l] Remove Digit From Number to Maximize Result [2260][2260l] Minimum Consecutive Cards to Pick Up [2261][2261l] K Divisible Elements Subarrays [2262][2262l] Total Appeal of A String [2264][2264l] Largest 3-Same-Digit Number in String [2265][2265l] Count Nodes Equal to Average of Subtree [2266][2266l] Count Number of Texts [2267][2267l] Check if There Is a Valid Parentheses String Path [2269][2269l] Find the K-Beauty of a Number [2270][2270l] Number of Ways to Split Array [2271][2271l] Maximum White Tiles Covered by a Carpet [2273][2273l] Find Resultant Array After Removing Anagrams [2274][2274l] Maximum Consecutive Floors Without Special Floors [2275][2275l] Largest Combination With Bitwise AND Greater Than Zero [2278][2278l] Percentage of Letter in String [2279][2279l] Maximum Bags With Full Capacity of Rocks [2280][2280l] Minimum Lines to Represent a Line Chart [2281][2281l] Sum of Total Strength of Wizards [2283][2283l] Check if Number Has Equal Digit Count and Digit Value [2284][2284l] Sender With Largest Word Count [2285][2285l] Maximum Total Importance of Roads [2286][2286l] Booking Concert Tickets in Groups [2287][2287l] Rearrange Characters to Make Target String [2288][2288l] Apply Discount to Prices [2289][2289l] Steps to Make Array Non-decreasing [2290][2290l] Minimum Obstacle Removal to Reach Corner [2293][2293l] Min Max Game [2294][2294l] Partition Array Such That Maximum Difference Is K [2295][2295l] Replace Elements in an Array [2296][2296l] Design a Text Editor [2299][2299l] Strong Password Checker II [2300][2300l] Successful Pairs of Spells and Potions [2301][2301l] Match Substring After Replacement [2302][2302l] Count Subarrays With Score Less Than K [2303][2303l] Calculate Amount Paid in Taxes [2304][2304l] Minimum Path Cost in a Grid [2305][2305l] Fair Distribution of Cookies [2306][2306l] Naming a Company [2309][2309l] Greatest English Letter in Upper and Lower Case [2310][2310l] Sum of Numbers With Units Digit K [2312][2312l] Selling Pieces of Wood [2315][2315l] Count Asterisks [2316][2316l] Count Unreachable Pairs of Nodes in an Undirected Graph [2317][2317l] Maximum XOR After Operations [2318][2318l] Number of Distinct Roll Sequences [2319][2319l] Check if Matrix Is X-Matrix [2320][2320l] Count Number of Ways to Place Houses [2321][2321l] Maximum Score Of Spliced Array [2322][2322l] Minimum Score After Removals on a Tree [2325][2325l] Decode the Message [2326][2326l] Spiral Matrix IV [2327][2327l] Number of People Aware of a Secret [2328][2328l] Number of Increasing Paths in a Grid [2331][2331l] Evaluate Boolean Binary Tree [2332][2332l] The Latest Time to Catch a Bus [2333][2333l] Minimum Sum of Squared Difference [2334][2334l] Subarray With Elements Greater Than Varying Threshold [2335][2335l] Minimum Amount of Time to Fill Cups [2336][2336l] Smallest Number in Infinite Set [2337][2337l] Move Pieces to Obtain a String [2341][2341l] Maximum Number of Pairs in Array [2342][2342l] Max Sum of a Pair With Equal Sum of Digits [2343][2343l] Query Kth Smallest Trimmed Number [2344][2344l] Minimum Deletions to Make Array Divisible [2347][2347l] Best Poker Hand [2348][2348l] Number of Zero-Filled Subarrays [2349][2349l] Design a Number Container System [2350][2350l] Shortest Impossible Sequence of Rolls [2351][2351l] First Letter to Appear Twice [2352][2352l] Equal Row and Column Pairs [2353][2353l] Design a Food Rating System [2354][2354l] Number of Excellent Pairs [2357][2357l] Make Array Zero by Subtracting Equal Amounts [2358][2358l] Maximum Number of Groups Entering a Competition [2359][2359l] Find Closest Node to Given Two Nodes [2360][2360l] Longest Cycle in a Graph [2363][2363l] Merge Similar Items [2364][2364l] Count Number of Bad Pairs [2365][2365l] Task Scheduler II [2367][2367l] Number of Arithmetic Triplets [2368][2368l] Reachable Nodes With Restrictions [2369][2369l] Check if There is a Valid Partition For The Array [2370][2370l] Longest Ideal Subsequence [2373][2373l] Largest Local Values in a Matrix [2374][2374l] Node With Highest Edge Score [2375][2375l] Construct Smallest Number From DI String [2376][2376l] Count Special Integers [2379][2379l] Minimum Recolors to Get K Consecutive Black Blocks [2380][2380l] Time Needed to Rearrange a Binary String [2381][2381l] Shifting Letters II [2382][2382l] Maximum Segment Sum After Removals [2383][2383l] Minimum Hours of Training to Win a Competition [2384][2384l] Largest Palindromic Number [2385][2385l] Amount of Time for Binary Tree to Be Infected [2386][2386l] Find the K-Sum of an Array [2389][2389l] Longest Subsequence With Limited Sum [2390][2390l] Removing Stars From a String [2391][2391l] Minimum Amount of Time to Collect Garbage [2392][2392l] Build a Matrix With Conditions [2395][2395l] Find Subarrays With Equal Sum [2396][2396l] Strictly Palindromic Number [2397][2397l] Maximum Rows Covered by Columns [2398][2398l] Maximum Number of Robots Within Budget [2399][2399l] Check Distances Between Same Letters [2400][2400l] Number of Ways to Reach a Position After Exactly k Steps [2401][2401l] Longest Nice Subarray [2402][2402l] Meeting Rooms III [2404][2404l] Most Frequent Even Element [2405][2405l] Optimal Partition of String [2406][2406l] Divide Intervals Into Minimum Number of Groups [2407][2407l] Longest Increasing Subsequence II [2409][2409l] Count Days Spent Together [2410][2410l] Maximum Matching of Players With Trainers [2411][2411l] Smallest Subarrays With Maximum Bitwise OR [2412][2412l] Minimum Money Required Before Transactions [2413][2413l] Smallest Even Multiple [2414][2414l] Length of the Longest Alphabetical Continuous Substring [2415][2415l] Reverse Odd Levels of Binary Tree [2416][2416l] Sum of Prefix Scores of Strings [2418][2418l] Sort the People [2419][2419l] Longest Subarray With Maximum Bitwise AND [2420][2420l] Find All Good Indices [2421][2421l] Number of Good Paths [2423][2423l] Remove Letter To Equalize Frequency [2424][2424l] Longest Uploaded Prefix [2425][2425l] Bitwise XOR of All Pairings [2426][2426l] Number of Pairs Satisfying Inequality [2427][2427l] Number of Common Factors [2428][2428l] Maximum Sum of an Hourglass [2429][2429l] Minimize XOR [2430][2430l] Maximum Deletions on a String [2432][2432l] The Employee That Worked on the Longest Task [2433][2433l] Find The Original Array of Prefix Xor [2434][2434l] Using a Robot to Print the Lexicographically Smallest String [2435][2435l] Paths in Matrix Whose Sum Is Divisible by K [2437][2437l] Number of Valid Clock Times [2438][2438l] Range Product Queries of Powers [2439][2439l] Minimize Maximum of Array [2441][2441l] Largest Positive Integer That Exists With Its Negative [2442][2442l] Count Number of Distinct Integers After Reverse Operations [2443][2443l] Sum of Number and Its Reverse [2444][2444l] Count Subarrays With Fixed Bounds [2446][2446l] Determine if Two Events Have Conflict [2447][2447l] Number of Subarrays With GCD Equal to K [2448][2448l] Minimum Cost to Make Array Equal [2449][2449l] Minimum Number of Operations to Make Arrays Similar [2451][2451l] Odd String Difference [2452][2452l] Words Within Two Edits of Dictionary [2453][2453l] Destroy Sequential Targets [2454][2454l] Next Greater Element IV [2455][2455l] Average Value of Even Numbers That Are Divisible by Three [2456][2456l] Most Popular Video Creator [2457][2457l] Minimum Addition to Make Integer Beautiful [2458][2458l] Height of Binary Tree After Subtree Removal Queries [2460][2460l] Apply Operations to an Array [2461][2461l] Maximum Sum of Distinct Subarrays With Length K [2462][2462l] Total Cost to Hire K Workers [2465][2465l] Number of Distinct Averages [2466][2466l] Count Ways To Build Good Strings [2468][2468l] Split Message Based on Limit [2469][2469l] Convert the Temperature [2471][2471l] Minimum Number of Operations to Sort a Binary Tree by Level [2472][2472l] Maximum Number of Non-overlapping Palindrome Substrings [2475][2475l] Number of Unequal Triplets in Array [2476][2476l] Closest Nodes Queries in a Binary Search Tree [2477][2477l] Minimum Fuel Cost to Report to the Capital [2478][2478l] Number of Beautiful Partitions [2481][2481l] Minimum Cuts to Divide a Circle [2482][2482l] Difference Between Ones and Zeros in Row and Column [2483][2483l] Minimum Penalty for a Shop [2484][2484l] Count Palindromic Subsequences [2485][2485l] Find the Pivot Integer [2486][2486l] Append Characters to String to Make Subsequence [2487][2487l] Remove Nodes From Linked List [2488][2488l] Count Subarrays With Median K [2490][2490l] Circular Sentence [2491][2491l] Divide Players Into Teams of Equal Skill [2492][2492l] Minimum Score of a Path Between Two Cities [2493][2493l] Divide Nodes Into the Maximum Number of Groups [2496][2496l] Maximum Value of a String in an Array [2497][2497l] Maximum Star Sum of a Graph [2498][2498l] Frog Jump II [2500][2500l] Delete Greatest Value in Each Row [2501][2501l] Longest Square Streak in an Array [2502][2502l] Design Memory Allocator [2503][2503l] Maximum Number of Points From Grid Queries [2506][2506l] Count Pairs Of Similar Strings [2508][2508l] Add Edges to Make Degrees of All Nodes Even [2509][2509l] Cycle Length Queries in a Tree [2511][2511l] Maximum Enemy Forts That Can Be Captured [2512][2512l] Reward Top K Students [2513][2513l] Minimize the Maximum of Two Arrays [2514][2514l] Count Anagrams [2515][2515l] Shortest Distance to Target String in a Circular Array [2516][2516l] Take K of Each Character From Left and Right [2517][2517l] Maximum Tastiness of Candy Basket [2518][2518l] Number of Great Partitions [2520][2520l] Count the Digits That Divide a Number [2521][2521l] Distinct Prime Factors of Product of Array [2523][2523l] Closest Prime Numbers in Range [2525][2525l] Categorize Box According to Criteria [2526][2526l] Find Consecutive Integers from a Data Stream [2527][2527l] Find Xor-Beauty of Array [2528][2528l] Maximize the Minimum Powered City [2529][2529l] Maximum Count of Positive Integer and Negative Integer [2530][2530l] Maximal Score After Applying K Operations [2531][2531l] Make Number of Distinct Characters Equal [2532][2532l] Time to Cross a Bridge [2535][2535l] Difference Between Element Sum and Digit Sum of an Array [2536][2536l] Increment Submatrices by One [2537][2537l] Count the Number of Good Subarrays [2538][2538l] Difference Between Maximum and Minimum Price Sum [2540][2540l] Minimum Common Value [2541][2541l] Minimum Operations to Make Array Equal II [2542][2542l] Maximum Subsequence Score [2544][2544l] Alternating Digit Sum [2545][2545l] Sort the Students by Their Kth Score [2546][2546l] Apply Bitwise Operations to Make Strings Equal [2547][2547l] Minimum Cost to Split an Array [2549][2549l] Count Distinct Numbers on Board [2550][2550l] Count Collisions of Monkeys on a Polygon [2551][2551l] Put Marbles in Bags [2552][2552l] Count Increasing Quadruplets [2553][2553l] Separate the Digits in an Array [2554][2554l] Maximum Number of Integers to Choose From a Range I [2555][2555l] Maximize Win From Two Segments [2556][2556l] Disconnect Path in a Binary Matrix by at Most One Flip [2558][2558l] Take Gifts From the Richest Pile [2559][2559l] Count Vowel Strings in Ranges [2560][2560l] House Robber IV [2561][2561l] Rearranging Fruits [2562][2562l] Find the Array Concatenation Value [2563][2563l] Count the Number of Fair Pairs [2564][2564l] Substring XOR Queries [2565][2565l] Subsequence With the Minimum Score [2566][2566l] Maximum Difference by Remapping a Digit [2567][2567l] Minimum Score by Changing Two Elements [2568][2568l] Minimum Impossible OR [2570][2570l] Merge Two 2D Arrays by Summing Values [2571][2571l] Minimum Operations to Reduce an Integer to 0 [2572][2572l] Count the Number of Square-Free Subsets [2573][2573l] Find the String with LCP [2574][2574l] Left and Right Sum Differences [2575][2575l] Find the Divisibility Array of a String [2576][2576l] Find the Maximum Number of Marked Indices [2577][2577l] Minimum Time to Visit a Cell In a Grid [2578][2578l] Split With Minimum Sum [2579][2579l] Count Total Number of Colored Cells [2580][2580l] Count Ways to Group Overlapping Ranges [2581][2581l] Count Number of Possible Root Nodes [2582][2582l] Pass the Pillow [2583][2583l] Kth Largest Sum in a Binary Tree [2584][2584l] Split the Array to Make Coprime Products [2585][2585l] Number of Ways to Earn Points [2586][2586l] Count the Number of Vowel Strings in Range [2587][2587l] Rearrange Array to Maximize Prefix Score [2588][2588l] Count the Number of Beautiful Subarrays [2591][2591l] Distribute Money to Maximum Children [2592][2592l] Maximize Greatness of an Array [2593][2593l] Find Score of an Array After Marking All Elements [2594][2594l] Minimum Time to Repair Cars [2595][2595l] Number of Even and Odd Bits [2596][2596l] Check Knight Tour Configuration [2597][2597l] The Number of Beautiful Subsets [2598][2598l] Smallest Missing Non-negative Integer After Operations [2600][2600l] K Items With the Maximum Sum [2601][2601l] Prime Subtraction Operation [2602][2602l] Minimum Operations to Make All Array Elements Equal [2605][2605l] Form Smallest Number From Two Digit Arrays [2606][2606l] Find the Substring With Maximum Cost [2607][2607l] Make K-Subarray Sums Equal [2608][2608l] Shortest Cycle in a Graph [2609][2609l] Find the Longest Balanced Substring of a Binary String [2610][2610l] Convert an Array Into a 2D Array With Conditions [2611][2611l] Mice and Cheese [2614][2614l] Prime In Diagonal [2615][2615l] Sum of Distances [2616][2616l] Minimize the Maximum Difference of Pairs [2617][2617l] Minimum Number of Visited Cells in a Grid [2639][2639l] Find the Width of Columns of a Grid [2640][2640l] Find the Score of All Prefixes of an Array [2641][2641l] Cousins in Binary Tree II [2642][2642l] Design Graph With Shortest Path Calculator [2643][2643l] Row With Maximum Ones [2644][2644l] Find the Maximum Divisibility Score [2645][2645l] Minimum Additions to Make Valid String [1976l]
