Leetcode solutions written in Java
This repository contains a list of leetcode solutions.
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 1 | Two Sum | Java | Easy |
| 3 | Longest Substring Without Repeating Characters | Java | Medium |
| 5 | Longest Palindromic Substring | Java | Medium |
| 11 | Container With Most Water | Java | Medium |
| 14 | Longest Common Prefix | Java | Easy |
| 15 | 3Sum | Java | Medium |
| 16 | 3Sum Closest | Java | Medium |
| 17 | Letter Combinations of a Phone Number | Java | Medium |
| 19 | Remove Nth Node From End of List | Java | Medium |
| 20 | Valid Parentheses | Java | Easy |
| 21 | Merge Two Sorted Lists | Java | Easy |
| 22 | Generate Parentheses | Java | Medium |
| 23 | Merge k Sorted Lists | Java | Hard |
| 24 | Swap Nodes In Pairs | Java | Medium |
| 25 | Reverse K Groups | Java | Hard |
| 26 | Remove Duplicates from Sorted Array | Java | Easy |
| 27 | Remove element | Java | Easy |
| 28 | StrStr | Java | Easy |
| 30 | Substring with Concatenation of All Words | Java | Hard |
| 32 | Longest Valid Parentheses | Java | Hard |
| 32 | Search In rotated Array | Java | Medium |
| 34 | Find First and Last Position of Element in Sorted Array | Java | Medium |
| 40 | Combination Sum 2 | Java | Medium |
| 41 | First Missing positive | Java | Hard |
| 45 | Jump Game 2 | Java | Hard |
| 46 | Permutations | Java | Medium |
| 48 | Ratate Image | Java | Medium |
| 49 | Group Anagrams | Java | Medium |
| 51 | M-Queens | Java | Hard |
| 52 | Maximum Subarray | Java | Easy |
| 55 | Jump Game | Java | Medium |
| 56 | Merge Intervals | Java | Medium |
| 57 | Insert interval | Java | Medium |
| 61 | Rotate List | Java | Medium |
| 62 | Unique Paths | Java | Medium |
| 63 | Unique Paths 2 | Java | Medium |
| 64 | Minimum Path Sum | Java | Medium |
| 66 | Plus one | Java | Easy |
| 70 | Climbing Stairs | Java | Easy |
| 71 | Simplify Path | Java | Medium |
| 72 | Edit Distance | Java | Hard |
| 73 | Set Matrix Zeroes | Java | Medium |
| 74 | Search a 2D Matrix | Java | Medium |
| 75 | Sort colors | Java | Medium |
| 76 | Minimum Window Substring | Java | Hard |
| 77 | Combinations | Java | Medium |
| 78 | Subsets | Java | Medium |
| 79 | Word Search | Java | Medium |
| 80 | Remove Duplicates from Sorted Array II | Java | Medium |
| 83 | Remove Duplicates from Sorted List | Java | Easy |
| 86 | Partition List | Java | Medium |
| 90 | Subsets2 | Java | Medium |
| 91 | Decode Ways | Java | Medium |
| 92 | Reverse Linked List 2 | Java | Medium |
| 93 | Restore IP Address | Java | Medium |
| 94 | Binary Tree Inorder Traversal | Java | Medium |
| 95 | Unique Binary Search Trees II | Java | Medium |
| 96 | Unique Binary Search Trees | Java | Medium |
| 97 | Interleaving String | Java | Hard |
| 98 | Validate Binary Search Tree | Java | Medium |
| 99 | Recover Binary tree | Java | Medium |
| 101 | Symmetric Trees | Java | Easy |
| 102 | Binary Tree Level Order Traversal | Java | Medium |
| 104 | Maximum Depth of Binary Tree | Java | Easy |
| 105 | From Preorder and InOrder tree | Java | Medium |
| 106 | Tree from Inorder and Post order | Java | Medium |
| 107 | Binary Tree Level Order Traversal | Java | Medium |
| 108 | Sorted Array to Tree | Java | Easy |
| 109 | Convert sorted list to Binary Search tree | Java | Medium |
| 110 | Balanced binary tree | Java | Easy |
| 111 | Min depth of binary tree | Java | Easy |
| 112 | Path Sum | Java | Easy |
| 113 | Path Sum 2 | Java | Medium |
| 114 | Flatten Binary Tree to Linked List | Java | Medium |
| 115 | Distinct Subsequences | Java | Hard |
| 116 | Populating Next Right Pointers in Each Node | Java | Medium |
| 120 | Triangle | Java | Medium |
| 121 | Best Time to Buy and Sell Stock | Java | Easy |
| 123 | Best Time to Buy and Sell Stock 3 | Java | Hard |
| 124 | Binary Tree Maximum Path Sum | Java | Hard |
| 125 | Valid Palindrome | Java | Easy |
| 127 | Word Ladder | Java | Medium |
| 128 | Longest Consecutive sequence | Java | Hard |
| 129 | Sum Root to Leaf Numbers | Java | Medium |
| 130 | Surrounded Regions | Java | Medium |
| 131 | Palindrome Partition | Java | Medium |
| 133 | Clone Graph | Java | Medium |
| 135 | Candies | Java | Hard |
| 139 | Word Break | Java | Medium |
| 140 | Word Break 2 | Java | Hard |
| 141 | Linked List has cycles | Java | Easy |
| 143 | Reorder list | Java | Medium |
| 146 | LRU Cache | Java | Medium |
| 148 | Sort list | Java | Medium |
| 155 | Min Stack | Java | Easy |
| 160 | Intersection of Two Linked Lists | Java | Easy |
| 165 | Compare Revision Number | Java | Medium |
| 167 | Two Sum II - Input array is sorted | Java | Easy |
| 168 | Excel Sheet Column | Java | Easy |
| 169 | Majority element | Java | Easy |
| 173 | BST iterator | Java | Medium |
| 178 | Graph Valid Tree | Java | Medium |
| 187 | DNA Sequence | Java | Medium |
| 188 | Best Time to Buy and Sell Stock IV | Java | Hard |
| 189 | Rotate Array | Java | Medium |
| 198 | House Robber | Java | Easy |
| 199 | Binary tree right view | Java | Medium |
| 200 | Number of Islands | Java | Medium |
| 203 | Remove element from Linked List | Java | Easy |
| 205 | Isomorphic string | Java | Easy |
| 206 | Reverse Linked List | Java | Easy |
| 207 | Course Schedule | Java | Medium |
| 208 | Trie | Java | Medium |
| 209 | Minimum Size Subarray Sum | Java | Medium |
| 210 | Course Schedule 2 | Java | Hard |
| 211 | Design Word Dictiomary | Java | Medium |
| 212 | Word Search 2 | Java | Hard |
| 215 | Kth Largest element in the array | Java | Medium |
| 221 | Maximum Square | Java | Medium |
| 222 | Count Nodes In Complete Binary Tree | Java | Medium |
| 226 | Invert Tree | Java | Easy |
| 228 | Summary ranges | Java | Easy |
| 230 | Kth Smallest Element in a BST | Java | Medium |
| 234 | Palindrome Linked List | Java | Easy |
| 235 | Lowest Common Ancestor of a Binary Search Tree | Java | Easy |
| 236 | Lowest Common Ancestor of a Binary Tree | Java | Medium |
| 239 | Sliding Window Maximum | Java | Hard |
| 241 | Different Ways to Split Parenthesis | Java | Medium |
| 257 | Binary Tree Paths | Java | Easy |
| 268 | Missing number | Java | Easy |
| 273 | Integer to English | Java | Hard |
| 274 | H-Index | Java | Medium |
| 283 | Move zeroes | Java | Easy |
| 290 | Word Pattern | Java | Easy |
| 297 | Serialize and Deserialize Binary Tree | Java | Hard |
| 298 | BINARY TREE LONGEST CONSECUTIVE SEQUENCE | Java | Medium |
| 300 | Longest Increasing Subsequence | Java | Medium |
| 301 | Remove Invalid Parentheses | Java | Hard |
| 307 | Range sum query Mutable | Java | Medium |
| 309 | Buy Sell stocks cooldown | Java | Medium |
| 315 | Count of Smaller Numbers After Self | Java | Hard |
| 316 | Remove duplicate Letters | Java | Medium |
| 318 | Max Product Of Word Lengths | Java | Medium |
| 322 | Coin Change | Java | Medium |
| 324 | Wiggle Sort 2 | Java | Medium |
| 328 | Odd Even Linked List | Java | Medium |
| 329 | Longest Increasing Sequence | Java | Hard |
| 332 | Reconstruct Itinerary | Java | Medium |
| 337 | House Robber 3 | Java | Medium |
| 341 | Flatten Nested Iterator | Java | Medium |
| 344 | Reverse String | Java | Easy |
| 347 | Top k elements | Java | Medium |
| 349 | Intersection of Two Arrays | Java | Easy |
| 350 | Intersection of Two Arrays II | Java | Easy |
| 368 | Largest Divisible subset | Java | Medium |
| 378 | Kth smallest elem in sorted matrix | Java | Medium |
| 383 | Ransom Note | Java | Easy |
| 386 | Lexigraphical Numbers | Java | Medium |
| 387 | First unique character | Java | Easy |
| 392 | Is sequence | Java | Easy |
| 394 | Decode String | Java | Medium |
| 395 | Longest Substring with At Least K Repeating Characters | Java | Medium |
| 399 | Evaluate Division | Java | Medium |
| 406 | Queue reconstruction | Java | Medium |
| 409 | Longest Palindrome | Java | Easy |
| 410 | Split Array Largest Sum | Java | Hard |
| 414 | Third Largest | Java | Easy |
| 416 | Partition Equal Subset Sum | Java | Medium |
| 417 | Pacific Atlantic Water Flow | Java | Medium |
| 424 | Longest Repeating Character Replacement | Java | Medium |
| 433 | Minimum Genetic Mutation | Java | Medium |
| 435 | Non-overlapping Intervals | Java | Medium |
| 437 | Path Sum 3 | Java | Medium |
| 438 | String Anagrams | Java | Medium |
| 442 | Find Duplicates in the array | Java | Medium |
| 443 | String Compression | Java | Easy |
| 448 | Find All Numbers Disappeared in an Array | Java | Easy |
| 449 | Serialize Binary Search Tree | Java | Medium |
| 453 | Minimum moves to Equal Array Elements | Java | Easy |
| 457 | Circular Array Loop | Java | Medium |
| 459 | Repeated Substring Pattern | Java | Easy |
| 472 | Concatenated words | Java | Hard |
| 474 | Ones And Zeroes | Java | Medium |
| 475 | Heaters | Java | Medium |
| 486 | Predict The Winner | Java | Medium |
| 491 | Increasing subsequences | Java | Medium |
| 501 | Find Mode in Binary Search Tree | Java | Easy |
| 503 | Next Greater Element II | Java | Medium |
| 508 | Most Frequent Subtree Sum | Java | Medium |
| 515 | Find Largest Value in Each Tree Row | Java | Medium |
| 516 | Longest Palindrome Subsequence | Java | Medium |
| 518 | Coin Change 2 | Java | Medium |
| 520 | Detect Capital | Java | Easy |
| 524 | Longest Word by deleting | Java | Medium |
| 525 | Contiguous array | Java | Medium |
| 528 | Random Pick with Height | Java | Medium |
| 538 | Convert BST to Greater Tree | Java | Easy |
| 542 | Matrix 01 | Java | Medium |
| 543 | Tree Diameter | Java | Easy |
| 547 | Number of Provinces | Java | Medium |
| 559 | Maximum Depth of N-ary Tree | Java | Easy |
| 560 | Subarray sum equals | Java | Medium |
| 561 | Array Partition I | Java | Easy |
| 562 | Min Moves to Equal array elements II | Java | Medium |
| 563 | Tree tilt | Java | Easy |
| 565 | Array Nesting | Java | Medium |
| 572 | Subtree of another Tree | Java | Easy |
| 575 | Distribute Candies | Java | Easy |
| 581 | Shortest Unsorted Continuous Array | Java | Medium |
| 583 | Delete Operation for Two Strings | Java | Medium |
| 590 | N-ary Tree Postorder traversal | Java | Easy |
| 599 | Min Index Sum of Two Lists | Java | Easy |
| 605 | Can place flowers | Java | Easy |
| 606 | Construct string from binary tree | Java | Easy |
| 609 | Find Duplicate Files | Java | Medium |
| 617 | Merge Two Binary Trees | Java | Easy |
| 621 | Task Scheduler | Java | Medium |
| 623 | Add Row to Binary tree | Java | Medium |
| 628 | Max Product of Three Numbers | Java | Easy |
| 632 | Smallest Range | Java | Hard |
| 637 | Average of Levels in Binary Tree | Java | Easy |
| 643 | Maximum Average SumArray 1 | Java | Easy |
| 646 | Max Length of Pair Chain | Java | Medium |
| 647 | Palindrome substrings | Java | Medium |
| 648 | Replace Words | Java | Medium |
| 652 | Find Duplicate Subtrees | Java | Medium |
| 653 | Two Sum IV - Input is a BST | Java | Easy |
| 654 | Maximum Binary tree | Java | Medium |
| 657 | Robot returns to origin | Java | Easy |
| 658 | Find K Closest | Java | Medium |
| 659 | Split Array Into consecutive sequences | Java | Medium |
| 662 | Max Width Tree | Java | Medium |
| 669 | Trim a binary tree | Java | Medium |
| 671 | Second Min Node in Tree | Java | Easy |
| 673 | Number of Longest Increasing Subsequence | Java | Medium |
| 675 | Cut Off Trees | Java | Hard |
| 676 | Magic Dictionary | Java | Medium |
| 678 | Valid Parenthesis in String | Java | Medium |
| 680 | Valid Palindrome II | Java | Easy |
| 684 | Redundant Connection | Java | Medium |
| 687 | Longest Univalue Path | Java | Medium |
| 692 | Top K Frequent Words | Java | Medium |
| 695 | Max Area Of Islands | Java | Medium |
| 698 | Partition to K Equal Sum | Java | Medium |
| 699 | Falling Squares | Java | Hard |
| 703 | Kth largest | Java | Easy |
| 704 | Binary Search | Java | Easy |
| 710 | Black list | Java | Hard |
| 713 | Subarray Product Less Than K | Java | Medium |
| 718 | Maximum Length of Repeated Subarray | Java | Medium |
| 719 | Find Kth Smallest Distance | Java | Hard |
| 720 | Longest Word In Dictionary | Java | Medium |
| 721 | Merge Accounts | Java | Medium |
| 725 | Split Linked List | Java | Medium |
| 735 | Asteroids Collision | Java | Medium |
| 739 | Daily Temperatures | Java | Medium |
| 740 | Delete And Earn | Java | Medium |
| 741 | Pickup Cherry | Java | Hard |
| 746 | Min cost climbing | Java | Easy |
| 747 | Largest Number At Least Twice Of Others | Java | Easy |
| 752 | Open the Lock | Java | Medium |
| 756 | Pyramid Transition Matrix | Java | Medium |
| 763 | Partition Labels | Java | Medium |
| 764 | Largest Plus Sign | Java | Medium |
| 767 | Reorganize string | Java | Medium |
| 769 | Max Chunks to make sorted | Java | Medium |
| 775 | Global and Local inversions | Java | Medium |
| 778 | Swim In Rising Water | Java | Hard |
| 784 | Letter case permutations | Java | Medium |
| 785 | Is Graph Bipart | Java | Medium |
| 787 | Cheapest flight with K stops | Java | Medium |
| 791 | Custom Sort String | Java | Medium |
| 792 | Matching Subsequences | Java | Medium |
| 797 | All Paths From Source to Target | Java | Medium |
| 807 | Max Increase city skyline | Java | Medium |
| 814 | Prune binary tree | Java | Medium |
| 815 | Bus Routes | Java | Hard |
| 819 | Most Common Word | Java | Easy |
| 820 | Short Encoding of Words | Java | Medium |
| 826 | Most Profit Assigning Work | Java | Medium |
| 827 | Making a large Island | Java | Hard |
| 830 | Positions Of Large Groups | Java | Easy |
| 832 | FLipping image | Java | Easy |
| 834 | Sum Of Distances in tree | Java | Hard |
| 839 | Similar String Groups | Java | Hard |
| 841 | Keys and Rooms | Java | Medium |
| 843 | Guess the word | Java | Hard |
| 844 | Backspace String Compare | Java | Easy |
| 851 | Loud And Rich | Java | Medium |
| 853 | Car Fleet | Java | Medium |
| 856 | Deepst Node in Subtree | Java | Medium |
| 857 | Min Cost to hire Worker | Java | Hard |
| 859 | Buddy Strings | Java | Easy |
| 860 | Lemonade Change | Java | Easy |
| 863 | All Nodes Distance K | Java | Medium |
| 867 | Transpose Matrix | Java | Easy |
| 870 | Advantage Shuffle | Java | Medium |
| 875 | Koko eating bananas | Java | Medium |
| 876 | Middle of the Linked List | Java | Easy |
| 880 | Decode String at Index | Java | Medium |
| 881 | Boats To Save people | Java | Medium |
| 884 | Uncommon Words | Java | Easy |
| 886 | Possible Bipartition | Java | Medium |
| 894 | All Possible Full Binary Trees | Java | Medium |
| 899 | Orderly queue | Java | Hard |
| 902 | Numbers At Most N Digits | Java | Hard |
| 917 | Reverse Only Letters | Java | Easy |
| 918 | Max Sum Circular Array | Java | Medium |
| 926 | Flip String | Java | Medium |
| 929 | Unique Emails | Java | Easy |
| 930 | Binary Subarray with Sum | Java | Medium |
| 931 | Minimum Falling Path Sum | Java | Medium |
| 934 | Shortest Bridge | Java | Medium |
| 937 | Reorder Data in Log files | Java | Easy |
| 938 | Range sum of Bst | Java | Easy |
| 939 | Min Area Rectangle | Java | Medium |
| 940 | Distinct Subsequences II | Java | Hard |
| 941 | Valid Mountain Array | Java | Easy |
| 946 | Validate Stack | Java | Medium |
| 947 | Most Stones | Java | Medium |
| 951 | Flip Equivalent Binary Trees | Java | Medium |
| 953 | Alien dictionary | Java | Easy |
| 958 | Check binary tree completeness | Java | Medium |
| 967 | Number with Same Consecutive Differences | Java | Medium |
| 968 | Binary Tree Cameras | Java | Hard |
| 973 | K Closest Points to Origin | Java | Medium |
| 977 | Squares of a Sorted Array | Java | Easy |
| 979 | Distribute coins in binary tree | Java | Medium |
| 980 | Unique Path 3 | Java | Hard |
| 983 | Minimum Cost for Tickets | Java | Medium |
| 984 | String Without AAA or BBB | Java | Medium |
| 985 | Sum Of Even Numbers After Queries | Java | Easy |
| 986 | Interval List Intersections | Java | Medium |
| 988 | Smallest String Starting From Leaf | Java | Medium |
| 990 | Satisfy Equality | Java | Medium |
| 993 | Cousins in Binary tree | Java | Easy |
| 994 | Rotting Oranges | Java | Medium |
| 1002 | Find common characters | Java | Easy |
| 1004 | Max Consecutive Ones III | Java | Medium |
| 1007 | Minimum Domino Rotations For Equal Row | Java | Medium |
| 1010 | Pair of Songs | Java | Medium |
| 1011 | Capacity to Ship D packages | Java | Medium |
| 1013 | Partition array three parts | Java | Easy |
| 1020 | Number Of Enclaves | Java | Medium |
| 1023 | Camel Case matching | Java | Medium |
| 1024 | Video Stitching | Java | Medium |
| 1026 | Max diff between node and ancestors | Java | Medium |
| 1028 | Recover tree from Preorder | Java | Hard |
| 1031 | Max Sum of Two Non-Overlapping subarrays | Java | Medium |
| 1041 | Robot Bounded In Circle | Java | Medium |
| 1042 | Flower Planting | Java | Medium |
| 1043 | Partition Array for Maximum Sum | Java | Medium |
| 1047 | Remove All Adjacnet Duplicates in String | Java | Easy |
| 1048 | Longest String Chain | Java | Medium |
| 1054 | Distance Barcodes | Java | Medium |
| 1079 | Letter Tile Possibilities | Java | Medium |
| 1089 | Duplicate Zeros | Java | Easy |
| 1091 | Shortest Path in Binary Matrix | Java | Medium |
| 1092 | Shortest Common Supersequence | Java | Hard |
| 1094 | Car Pooling | Java | Medium |
| 1109 | Corporate Flights | Java | Medium |
| 1110 | Delete nodes and return forest | Java | Medium |
| 1122 | Relative order array | Java | Easy |
| 1143 | Longest Common Subsequence | Java | Medium |
| 1145 | Binary Tree Coloring Game | Java | Medium |
| 1160 | Find Words That Can Be Formed by Characters | Java | Easy |
| 1161 | Maximum Level Sum of a Binary Tree | Java | Medium |
| 1162 | As Far from land as possible | Java | Medium |
| 1170 | Compare Strings Frequency | Java | Medium |
| 1202 | Smallest string with swaps | Java | Medium |
| 1208 | Get Equals substring length by budget | Java | Medium |
| 1209 | Remove adjacent Duplicates II | Java | Medium |
| 1218 | Longest Arithmetic Sequence | Java | Medium |
| 1249 | Minimum Remove to make a valid parenthesis | Java | Medium |
| 1253 | Reconstruct Matrix | Java | Medium |
| 1254 | Number of Closed Islands | Java | Medium |
| 1262 | Greatest Sum Div by Three | Java | Medium |
| 1267 | Count Servers that communicate | Java | Medium |
| 1277 | Count Square submatrixes with all ones | Java | Medium |
| 1288 | Remove covered intervals | Java | Medium |
| 1296 | Divide array into K sets | Java | Medium |
| 1297 | Maximum Length Of a concatenated string with unique characters | Java | Medium |
| 1299 | Replace element with greatest | Java | Easy |
| 1304 | Sum Up to zero | Java | Easy |
| 1305 | All Elements In Two Binary Search Tree | Java | Medium |
| 1319 | Number of operations to make graph connected | Java | Medium |
| 1329 | Sort the matrix diagonally | Java | Medium |
| 1335 | Min Job difficulty | Java | Hard |
| 1337 | Weakest Rows In Matrix | Java | Easy |
| 1338 | Reduce array size by half | Java | Medium |
| 1339 | Max Product Of Splitted Tree | Java | Medium |
| 1346 | N and Double exist | Java | Easy |
| 1351 | Count negative in a Matrix | Java | Easy |
| 1353 | Number Of Events To Attend | Java | Medium |
| 1361 | Validate Binary Tree Nodes | Java | Medium |
| 1365 | How Many Numbers Are Smaller Than the Current Number | Java | Easy |
| 1366 | Rank Teams | Java | Medium |
| 1367 | Linked List In Binary Tree | Java | Medium |
| 1372 | Longest Zig Zag tree | Java | Medium |
| 1376 | Time needed to inform all employees | Java | Medium |
| 1377 | Frog Position after T seconds | Java | Hard |
| 1380 | Lucky Number | Java | Easy |
| 1382 | Balance Binary Search tree | Java | Medium |
| 1383 | Maximum Performance of a team | Java | Hard |
| 1395 | Count Number Of Teams | Java | Medium |
| 1406 | Stone Game 3 | Java | Hard |
| 1409 | Queries on a Permutation | Java | Medium |
| 1419 | Croaking | Java | Medium |
| 1423 | Max Points Obtain from Cards | Java | Medium |
| 1431 | Kids with greatest candies | Java | Easy |
| 1433 | Check if string can break another | Java | Medium |
| 1437 | Check distance at least K | Java | Easy |
| 1443 | Minimum time to collect apples in a tree | Java | Medium |
| 1448 | Count good nodes in binary tree | Java | Medium |
| 1462 | Course Schedule 4 | Java | Medium |
| 1464 | Max product of Two elements in an array | Java | Easy |
| 1465 | Max aread of Cake after cut | Java | Medium |
| 1466 | Reourder Routes | Java | Medium |
| 1470 | Shuffle the Array | Java | Easy |
| 1471 | K strongest values | Java | Medium |
| 1472 | Design Browser History | Java | Medium |
| 1475 | Final Prices with a Special Discount | Java | Easy |
| 1480 | Running sum | Java | Easy |
| 1481 | Least Number of Unique Integers after K removal | Java | Medium |
| 1482 | Min number of days to make bouquets | Java | Medium |
| 1488 | Avoid Flood in the city | Java | Medium |
| 1504 | Count Submatrices | Java | Medium |
| 1509 | Min Diff Between min and max in three moves | Java | Medium |
| 1512 | Good Pairs | Java | Easy |
| 1514 | Path With Max Prob | Java | Medium |
| 1524 | Number of Sub arrays with odd sum | Java | Medium |
| 1530 | Number of Good leaf pairs | Java | Medium |
| 1535 | Find winner of array game | Java | Medium |
| 1536 | Min swap to arrange a binary grid | Java | Medium |
| 1537 | Get Max Score | Java | Hard |
| 1539 | Kth missing positive number | Java | Easy |
| 1550 | Three consecuve odds | Java | Easy |
| 1557 | Minimum number of vertices to reach all nodes | Java | Medium |
| 1558 | Min Number of Function calls | Java | Medium |
| 1559 | Detect cycles | Java | Hard |
| 1572 | Matrix Diagonal Tree | Java | Easy |
| 1574 | Shortest Subarray remove to make array sorted | Java | Medium |
| 1575 | Count all routes | Java | Hard |
| 1576 | Replace All ?'s to Avoid Consecutive Repeating Characters | Java | Easy |
| 1577 | Number of Ways Square Equals to Product | Java | Medium |
| 1578 | Min deletion cost to avoid repeating characters | Java | Medium |
| 1582 | Special position matrix | Java | Easy |
| 1584 | Min Cost connect points | Java | Medium |
| 1588 | Sum Of All Odd Length Array | Java | Easy |
| 1593 | Split a String Into the Max Number of Unique Substrings | Java | Medium |
| 1594 | Max Non Negative Product | Java | Medium |
| 1598 | Crawler Log | Java | Easy |
| 1605 | Find Valid Matrix Given Sum | Java | Medium |
| 1608 | Special Array With X Elements | Java | Easy |
| 1609 | Even Odd Tree | Java | Medium |
| 1619 | Mean of Array after removal | Java | Easy |
| 1624 | Largest Substring Between Equal Characters | Java | Easy |
| 1631 | Path With Minimum Effort | Java | Medium |
| 1647 | Minimum Deletions to Make Character Frequencies Unique | Java | Medium |
| 1648 | Sell Diminishing Colored Balls | Java | Medium |
| 1654 | Minimum Jump to Reach Home | Java | Medium |
| 1658 | Minimum Operations to Reduce X to Zero | Java | Medium |
| 1664 | Ways to make a fair array | Java | Medium |
| 1670 | Design Front Back Middle Queue | Java | Medium |
| 1672 | Richest Customer | Java | Easy |
| 1685 | Sum Of Absolute Differences in a Sorted Array | Java | Medium |
| 1690 | Stone Game 7 | Java | Medium |
| 1691 | Maximum Height by Stacking Cuboids | Java | Hard |
| 1695 | Max Erasure | Java | Medium |
| 1700 | Number of Students unable to eat lunch | Java | Easy |
| 1701 | Average waiting time | Java | Medium |
| 1710 | Max Units on a track | Java | Easy |
| 1712 | Ways to split array into three | Java | Medium |
| 1716 | Money in bank | Java | Easy |
| 1721 | Swapping Nodes In LinkedList | Java | Medium |
| 1723 | Find Min Time to Finish All Jobs | Java | Hard |
| 1725 | Find All Rectangle Squares | Java | Easy |
| 1726 | Tuples with same product | Java | Medium |
| 1765 | Map Highest Tree | Java | Medium |
| 1770 | Max Score performing operations | Java | Medium |
| 1772 | Min Hamming distance | Java | Medium |
| 1774 | Closest Desert Cost | Java | Medium |
| 1779 | Find Nearest point | Java | Easy |
| 1781 | Sum Of beauty of All Substrings | Java | Medium |
| 1786 | Number Of Restricted Paths | Java | Medium |
| 1796 | Second Largest Digit | Java | Easy |
| 1807 | Evaluate the Bracket Pairs Of a String | Java | Medium |
| 1812 | Square is white | Java | Easy |
| 1817 | Find users active minutes | Java | Medium |
| 1823 | Winner of cirtular game | Java | Medium |
| 1824 | Min Sideway Jump | Java | Medium |
| 1827 | Make array increasing | Java | Easy |
| 1834 | Single Threaded CPU | Java | Medium |
| 1839 | Longest Substring of All Vowels | Java | Medium |
| 1847 | Closest Room | Java | Hard |
| 1851 | Min Interval to include all queries | Java | Hard |
| 1854 | Max population year | Java | Easy |
| 1855 | Distance Between two points | Java | Medium |
| 1887 | Reducation Operation 01 | Java | Medium |
| 1888 | Flips String ALteranating | Java | Medium |
| 1894 | Find student who will replace the Chalk | Java | Medium |
| 1905 | Count sub islands | Java | Medium |
| 1962 | Remove Stones | Java | Medium |
| 1968 | Array With Elements Not Equal Neighbours | Java | Easy |
| 1971 | Find Path Exists | Java | Easy |
| 1976 | Number of Ways to Arrive as Destination | Java | Medium |
| 1992 | Find all Groups FarmLand | Java | Medium |
| 2008 | Max profit Taxi | Java | Medium |
| 2009 | Min number of operations to make array contiguous | Java | Hard |
| 2014 | Longest subsequence reapeated k times | Java | Hard |
| 2076 | Process restricted friends | Java | Hard |
| 2101 | Detonate the Max Bombs | Java | Medium |
Here is the list of solution for problems from Introduction for Algorithms book by Thomas H. Cormen