Here serves all of my 211 Leetcode Submissions. Leetcode Link

• 1 two sum Easy
• 2 add two numbers Medium
• 3 longest substring without repeating characters Medium
• 4 median of two sorted arrays Hard
• 5 longest palindromic substring Medium
• 6 zigzag conversion Medium
• 9 palindrome number Easy
• 11 container with most water Medium
• 12 integer to roman Medium
• 13 roman to integer Easy
• 14 longest common prefix Easy
• 15 3sum Medium
• 17 letter combinations of a phone number Medium
• 19 remove nth node from end of list Medium
• 20 valid parentheses Easy
• 21 merge two sorted lists Easy
• 22 generate parentheses Medium
• 23 merge k sorted lists Hard
• 25 reverse nodes in k group Hard
• 26 remove duplicates from sorted array Easy
• 27 remove element Easy
• 28 find the index of the first occurrence in a string Easy
• 29 divide two integers Medium
• 30 substring with concatenation of all words Hard
• 33 search in rotated sorted array Medium
• 34 find first and last position of element in sorted array Medium
• 35 search insert position Easy
• 36 valid sudoku Medium
• 39 combination sum Medium
• 42 trapping rain water Hard
• 45 jump game ii Medium
• 46 permutations Medium
• 48 rotate image Medium
• 49 group anagrams Medium
• 50 powx n Medium
• 52 n queens ii Hard
• 53 maximum subarray Medium
• 54 spiral matrix Medium
• 55 jump game Medium
• 56 merge intervals Medium
• 57 insert interval Medium
• 58 length of last word Easy
• 61 rotate list Medium
• 62 unique paths Medium
• 63 unique paths ii Medium
• 64 minimum path sum Medium
• 66 plus one Easy
• 67 add binary Easy
• 68 text justification Hard
• 69 sqrtx Easy
• 70 climbing stairs Easy
• 71 simplify path Medium
• 72 edit distance Medium
• 73 set matrix zeroes Medium
• 74 search a 2d matrix Medium
• 76 minimum window substring Hard
• 77 combinations Medium
• 79 word search Medium
• 80 remove duplicates from sorted array ii Medium
• 82 remove duplicates from sorted list ii Medium
• 86 partition list Medium
• 88 merge sorted array Easy
• 92 reverse linked list ii Medium
• 97 interleaving string Medium
• 98 validate binary search tree Medium
• 100 same tree Easy
• 101 symmetric tree Easy
• 102 binary tree level order traversal Medium
• 103 binary tree zigzag level order traversal Medium
• 104 maximum depth of binary tree Easy
• 105 construct binary tree from preorder and inorder traversal Medium
• 106 construct binary tree from inorder and postorder traversal Medium
• 108 convert sorted array to binary search tree Easy
• 112 path sum Easy
• 114 flatten binary tree to linked list Medium
• 117 populating next right pointers in each node ii Medium
• 120 triangle Medium
• 121 best time to buy and sell stock Easy
• 122 best time to buy and sell stock ii Medium
• 123 best time to buy and sell stock iii Hard
• 124 binary tree maximum path sum Hard
• 125 valid palindrome Easy
• 127 word ladder Hard
• 128 longest consecutive sequence Medium
• 129 sum root to leaf numbers Medium
• 130 surrounded regions Medium
• 133 clone graph Medium
• 134 gas station Medium
• 135 candy Hard
• 136 single number Easy
• 137 single number ii Medium
• 138 copy list with random pointer Medium
• 139 word break Medium
• 141 linked list cycle Easy
• 146 lru cache Medium
• 148 sort list Medium
• 149 max points on a line Hard
• 150 evaluate reverse polish notation Medium
• 151 reverse words in a string Medium
• 153 find minimum in rotated sorted array Medium
• 155 min stack Medium
• 162 find peak element Medium
• 167 two sum ii input array is sorted Medium
• 169 majority element Easy
• 172 factorial trailing zeroes Medium
• 173 binary search tree iterator Medium
• 188 best time to buy and sell stock iv Hard
• 189 rotate array Medium
• 190 reverse bits Easy
• 191 number of 1 bits Easy
• 198 house robber Medium
• 199 binary tree right side view Medium
• 200 number of islands Medium
• 201 bitwise and of numbers range Medium
• 202 happy number Easy
• 205 isomorphic strings Easy
• 206 reverse linked list Easy
• 207 course schedule Medium
• 208 implement trie prefix tree Medium
• 209 minimum size subarray sum Medium
• 210 course schedule ii Medium
• 211 design add and search words data structure Medium
• 212 word search ii Hard
• 215 kth largest element in an array Medium
• 216 combination sum iii Medium
• 219 contains duplicate ii Easy
• 221 maximal square Medium
• 222 count complete tree nodes Easy
• 224 basic calculator Hard
• 226 invert binary tree Easy
• 228 summary ranges Easy
• 230 kth smallest element in a bst Medium
• 236 lowest common ancestor of a binary tree Medium
• 238 product of array except self Medium
• 242 valid anagram Easy
• 274 h index Medium
• 282 expression add operators Hard
• 283 move zeroes Easy
• 289 game of life Medium
• 290 word pattern Easy
• 295 find median from data stream Hard
• 300 longest increasing subsequence Medium
• 322 coin change Medium
• 328 odd even linked list Medium
• 334 increasing triplet subsequence Medium
• 338 counting bits Easy
• 345 reverse vowels of a string Easy
• 373 find k pairs with smallest sums Medium
• 374 guess number higher or lower Easy
• 380 insert delete getrandom o1 Medium
• 383 ransom note Easy
• 392 is subsequence Easy
• 394 decode string Medium
• 399 evaluate division Medium
• 433 minimum genetic mutation Medium
• 435 non overlapping intervals Medium
• 437 path sum iii Medium
• 443 string compression Medium
• 450 delete node in a bst Medium
• 452 minimum number of arrows to burst balloons Medium
• 502 ipo Hard
• 530 minimum absolute difference in bst Easy
• 547 number of provinces Medium
• 605 can place flowers Easy
• 637 average of levels in binary tree Easy
• 643 maximum average subarray i Easy
• 649 dota2 senate Medium
• 714 best time to buy and sell stock with transaction fee Medium
• 724 find pivot index Easy
• 735 asteroid collision Medium
• 739 daily temperatures Medium
• 747 min cost climbing stairs Easy
• 772 construct quad tree Medium
• 783 search in a binary search tree Easy
• 806 domino and tromino tiling Medium
• 871 keys and rooms Medium
• 904 leaf similar trees Easy
• 907 koko eating bananas Medium
• 937 online stock span Medium
• 945 snakes and ladders Medium
• 954 maximum sum circular subarray Medium
• 969 number of recent calls Easy
• 1036 rotting oranges Medium
• 1046 max consecutive ones iii Medium
• 1116 maximum level sum of a binary tree Medium
• 1146 greatest common divisor of strings Easy
• 1236 n th tribonacci number Easy
• 1250 longest common subsequence Medium
• 1319 unique number of occurrences Easy
• 1392 find the difference of two arrays Easy
• 1397 search suggestions system Medium
• 1441 minimum flips to make a or b equal to c Medium
• 1474 longest zigzag path in a binary tree Medium
• 1528 kids with the greatest number of candies Easy
• 1544 count good nodes in binary tree Medium
• 1567 maximum number of vowels in a substring of given length Medium
• 1576 reorder routes to make all paths lead to the city zero Medium
• 1586 longest subarray of 1s after deleting one element Medium
• 1777 determine if two strings are close Medium
• 1798 max number of k sum pairs Medium
• 1833 find the highest altitude Easy
• 1894 merge strings alternately Easy
• 2038 nearest exit from entrance in maze Medium
• 2216 delete the middle node of a linked list Medium
• 2236 maximum twin sum of a linked list Medium
• 2392 successful pairs of spells and potions Medium
• 2413 smallest number in infinite set Medium
• 2428 equal row and column pairs Medium
• 2470 removing stars from a string Medium
• 2553 total cost to hire k workers Medium
• 2636 maximum subsequence score Medium