Add more solutions (up to #145)

Author: alexwawl

README.md

@@ -3,37 +3,64 @@ My Leetcode Solutions (125+): JavaScript and Python
 
 | Problem Name  | Description   | Difficulty | Rating | Notes |
 | ------------- | ------------- | ---------- | ------ | ------ |
-| #1 Two Sum  | [leetcode.com](https://leetcode.com/problems/two-sum/)  | Easy | JS (Top 99.48%) Python (Top 97.89%)  | JavaScript and Python |
-| #2 Add Two Numbers  | [leetcode.com](https://leetcode.com/problems/two-sum/)  | Medium | JS (Top 61.87%) Python (Top 84.13%)  | JavaScript and Python |
-| #3 Longest Substring Without Repeating Characters  | [leetcode.com](https://leetcode.com/problems/longest-substring-without-repeating-characters/)  | Medium | JS (Top 86.63%) Python (Top 54.11%)  | JavaScript and Python |
-| #7 Reverse Integer  | [leetcode.com](https://leetcode.com/problems/reverse-integer/)  | Easy | JS (Top 64.56%)  | JavaScript |
-| #9 Palindrome Number  | [leetcode.com](https://leetcode.com/problems/reverse-integer/)  | Easy | Python (Top 54.57%)  | Python |
+| #1 Two Sum  | [leetcode.com](https://leetcode.com/problems/two-sum/)  | Easy | JS (99.48%) Python (97.89%)  | JavaScript and Python |
+| #2 Add Two Numbers  | [leetcode.com](https://leetcode.com/problems/two-sum/)  | Medium | JS (61.87%) Python (84.13%)  | JavaScript and Python |
+| #3 Longest Substring Without Repeating Characters  | [leetcode.com](https://leetcode.com/problems/longest-substring-without-repeating-characters/)  | Medium | JS (86.63%) Python (54.11%)  | JavaScript and Python |
+| #7 Reverse Integer  | [leetcode.com](https://leetcode.com/problems/reverse-integer/)  | Easy | JS (64.56%)  | JavaScript |
+| #9 Palindrome Number  | [leetcode.com](https://leetcode.com/problems/reverse-integer/)  | Easy | Python (54.57%)  | Python |
 | #11 Container With Most Water  | [leetcode.com](https://leetcode.com/problems/container-with-most-water/)  | Medium | JS(Top 98.99%) Python (Top 70.32%)  | JavaScript and Python |
-| #13 Roman To Integer  | [leetcode.com](https://leetcode.com/problems/roman-to-integer/)  | Easy | Python(Top 99.62%)| Python |
-| #15 3Sum  | [leetcode.com](https://leetcode.com/problems/3sum/)  | Medium | JS(Top 95.57%) Python(Top 59.85%)| JavaScript and Python |
+| #13 Roman To Integer  | [leetcode.com](https://leetcode.com/problems/roman-to-integer/)  | Easy | Python(99.62%)| Python |
+| #15 3Sum  | [leetcode.com](https://leetcode.com/problems/3sum/)  | Medium | JS(95.57%) Python(59.85%)| JavaScript and Python |
 | #17 Letter Combinations of a Phone Number  | [leetcode.com](https://leetcode.com/problems/letter-combinations-of-a-phone-number/)  | Medium | JS(Top 72.81%) Python(Top 94.52%)| JavaScript and Python |
-| #18 4Sum  | [leetcode.com](https://leetcode.com/problems/4sum/)  | Medium | JS(Top 60.02%) Python(Top 14.91%)| JavaScript and Python |
-| #20 Valid Parentheses  | [leetcode.com](https://leetcode.com/problems/valid-parentheses/)  | Easy | JS(Top 84.99%) Python(Top 32.05%)| JavaScript and Python |
-| #21 Merge Two Sorted Lists  | [leetcode.com](https://leetcode.com/problems/merge-two-sorted-lists/)  | Easy | JS(Top 99.94%)| JavaScript |
-| #22 Generate Parentheses  | [leetcode.com](https://leetcode.com/problems/generate-parentheses/)  | Medium | JS(Top 71.09%) Python(Top 94.45%)| JavaScript and Python|
-| #23 Merge k Sorted Lists  | [leetcode.com](https://leetcode.com/problems/merge-k-sorted-lists/)  | Hard | JS(Top 99.71%)| JavaScript|
-| #24 Swap Nodes in Pairs  | [leetcode.com](https://leetcode.com/problems/swap-nodes-in-pairs/)  | Medium | JS(Top 81.61%) Python(Top 51.98%)| JavaScript and Python|
+| #18 4Sum  | [leetcode.com](https://leetcode.com/problems/4sum/)  | Medium | JS(60.02%) Python(14.91%)| JavaScript and Python |
+| #20 Valid Parentheses  | [leetcode.com](https://leetcode.com/problems/valid-parentheses/)  | Easy | JS(84.99%) Python(32.05%)| JavaScript and Python |
+| #21 Merge Two Sorted Lists  | [leetcode.com](https://leetcode.com/problems/merge-two-sorted-lists/)  | Easy | JS(99.94%)| JavaScript |
+| #22 Generate Parentheses  | [leetcode.com](https://leetcode.com/problems/generate-parentheses/)  | Medium | JS(71.09%) Python(94.45%)| JavaScript and Python|
+| #23 Merge k Sorted Lists  | [leetcode.com](https://leetcode.com/problems/merge-k-sorted-lists/)  | Hard | JS(99.71%)| JavaScript|
+| #24 Swap Nodes in Pairs  | [leetcode.com](https://leetcode.com/problems/swap-nodes-in-pairs/)  | Medium | JS(81.61%) Python(Top 51.98%)| JavaScript and Python|
 | #26 Remove Duplicates from Sorted Array      | [leetcode.com](https://leetcode.com/problems/remove-duplicates-from-sorted-array)  | Easy | JS(Top 61.78%)| JavaScript|
-| #27 Remove Element      | [leetcode.com](https://leetcode.com/problems/remove-element/)  | Easy | Python(Top 66.30%)| Python|
-| #28 Implement strStr()      | [leetcode.com](https://leetcode.com/problems/implement-strstr/)  | Easy | Python(Top 82.82%)| Python|
+| #27 Remove Element      | [leetcode.com](https://leetcode.com/problems/remove-element/)  | Easy | Python(66.30%)| Python|
+| #28 Implement strStr()      | [leetcode.com](https://leetcode.com/problems/implement-strstr/)  | Easy | Python(82.82%)| Python|
 | #33 Search in Rotated Sorted Array      | [leetcode.com](https://leetcode.com/problems/search-in-rotated-sorted-array/)  | Medium | JavaScript(Top 95.68%) Python(Top 7.72%)|JavaScript and Python|
-| #36 Valid Sudoku      | [leetcode.com](https://leetcode.com/problems/valid-sudoku/)  | Medium | JS(Top 61.21%) Python(Top 82.75%)|JavaScript and Python|
-| #37 Sudoku Solver      | [leetcode.com](https://leetcode.com/problems/sudoku-solver/)  | Hard | JS(Top 67.8%)|JavaScript|
-| #39 Combination Sum      | [leetcode.com](https://leetcode.com/problems/combination-sum/)  | Medium | JS(Top 78.56%) Python(Top 53.13%)|JavaScript and Python|
-| #40 Combination Sum  II    | [leetcode.com](https://leetcode.com/problems/combination-sum-ii/)  | Medium | JS(Top 75.16%) Python(Top 50.44%)|JavaScript and Python|
-| #46 Permutations    | [leetcode.com](https://leetcode.com/problems/permutations/)  | Medium | JS(Top 66.15%) Python(Top 64.96%)|JavaScript and Python|
-| #47 Permutations II   | [leetcode.com](https://leetcode.com/problems/permutations-ii/)  | Medium | Python(Top 99.66%)|Python|
-| #49 Group Anagrams   | [leetcode.com](https://leetcode.com/problems/group-anagrams/)  | Medium | JS(Top 31.29%) Python(Top 99.37%)|JavaScript and Python|
-| #50 Pow(x, n)   | [leetcode.com](https://leetcode.com/problems/powx-n/)  | Medium | JS(Top 91.76%) Python(Top 94.30%)|JavaScript and Python|
-| #51 N-Queens   | [leetcode.com](https://leetcode.com/problems/n-queens/)  | Hard | JS(Top 14.9%)|JavaScript|
-| #52 N-Queens II  | [leetcode.com](https://leetcode.com/problems/n-queens-ii/)  | Hard | JS(Top 8.65%)|JavaScript|
-| #53 Maximum Subarray  | [leetcode.com](https://leetcode.com/problems/maximum-subarray/)  | Easy | JS(Top 95.13%)|JavaScript|
-| #56 Merge Intervals | [leetcode.com](https://leetcode.com/problems/merge-intervals/)  | Medium | JS(Top 68.69%)|JavaScript|
+| #36 Valid Sudoku      | [leetcode.com](https://leetcode.com/problems/valid-sudoku/)  | Medium | JS(61.21%) Python(82.75%)|JavaScript and Python|
+| #37 Sudoku Solver      | [leetcode.com](https://leetcode.com/problems/sudoku-solver/)  | Hard | JS(67.8%)|JavaScript|
+| #39 Combination Sum      | [leetcode.com](https://leetcode.com/problems/combination-sum/)  | Medium | JS(78.56%) Python( 53.13%)|JavaScript and Python|
+| #40 Combination Sum  II    | [leetcode.com](https://leetcode.com/problems/combination-sum-ii/)  | Medium | JS(75.16%) Python( 50.44%)|JavaScript and Python|
+| #46 Permutations    | [leetcode.com](https://leetcode.com/problems/permutations/)  | Medium | JS(66.15%) Python(Top 64.96%)|JavaScript and Python|
+| #47 Permutations II   | [leetcode.com](https://leetcode.com/problems/permutations-ii/)  | Medium | Python(99.66%)|Python|
+| #49 Group Anagrams   | [leetcode.com](https://leetcode.com/problems/group-anagrams/)  | Medium | JS(31.29%) Python( 99.37%)|JavaScript and Python|
+| #50 Pow(x, n)   | [leetcode.com](https://leetcode.com/problems/powx-n/)  | Medium | JS(91.76%) Python(94.30%)|JavaScript and Python|
+| #51 N-Queens   | [leetcode.com](https://leetcode.com/problems/n-queens/)  | Hard | JS(14.9%)|JavaScript|
+| #52 N-Queens II  | [leetcode.com](https://leetcode.com/problems/n-queens-ii/)  | Hard | JS(8.65%)|JavaScript|
+| #53 Maximum Subarray  | [leetcode.com](https://leetcode.com/problems/maximum-subarray/)  | Easy | JS(95.13%)|JavaScript|
+| #56 Merge Intervals | [leetcode.com](https://leetcode.com/problems/merge-intervals/)  | Medium | JS(68.69%)|JavaScript|
 | #67 Add Binary | [leetcode.com](https://leetcode.com/problems/add-binary/)  | Easy | JS(Top 84.94%) Python(Top 38.72%)|JavaScript and Python|
+| #70 Climbing Stairs | [leetcode.com](https://leetcode.com/problems/climbing-stairs/)  | Easy | JS(71.61%)|JavaScript |
+| #77 Combinations | [leetcode.com](https://leetcode.com/problems/combinations/)  | Medium | JS(98.68%)|JavaScript|
+| #79 Word Search | [leetcode.com](https://leetcode.com/problems/word-search/)  | Medium | JS(88.08%) Python (62.27%)|JavaScript and Python|
+| #81 Search in Rotated Sorted Array II | [leetcode.com](https://leetcode.com/problems/search-in-rotated-sorted-array-ii/)  | Medium | JS(27.12%)|JavaScript|
+| #83 Remove Duplicates from Sorted List | [leetcode.com](https://leetcode.com/problems/remove-duplicates-from-sorted-list/)  | Easy | JS(80,44%)|JavaScript|
+| #88 Merge Sorted Array | [leetcode.com](https://leetcode.com/problems/merge-sorted-array/)  | Easy | JS(99.92%)|JavaScript|
+| #91 Decode Ways | [leetcode.com](https://leetcode.com/problems/decode-ways/)  | Medium | JS(92.51%)|JavaScript|
+| #94 Binary Tree Inorder Traversal    | [leetcode.com](https://leetcode.com/problems/binary-tree-inorder-traversal)  | Medium | JS(57.42%) Python(93.23%)|JavaScript and Python|
+| #98 Validate Binary Search Tree    | [leetcode.com](https://leetcode.com/problems/validate-binary-search-tree/)  | Medium | JS(72.31%) Python(94.45%)|JavaScript and Python|
+| #100 Same Tree    | [leetcode.com](https://leetcode.com/problems/same-tree/)  | Easy | JS(53.44%)|JavaScript|
+| #101 Symmetric Tree    | [leetcode.com](https://leetcode.com/problems/symmetric-tree/)  | Easy | JS(96.58%)|JavaScript|
+| #102 Binary Tree Level Order Traversal    | [leetcode.com](https://leetcode.com/problems/binary-tree-level-order-traversal/)  | Medium | JS(97.23%) Python(55.22%)|JavaScript and Python|
+| #104 Maximum Depth of Binary Tree    | [leetcode.com](https://leetcode.com/problems/maximum-depth-of-binary-tree/)  | Easy | JS(78.07%) Python(55.77%)|JavaScript and Python|
+| #107 Binary Tree Level Order Traversal II   | [leetcode.com](https://leetcode.com/problems/binary-tree-level-order-traversal-ii/)  | Easy | JS(29.02%)|JavaScript|
+| #108 Convert Sorted Array to Binary Search Tree   | [leetcode.com](https://leetcode.com/problems/binary-tree-level-order-traversal-ii/)  | Easy | JS(45.73%)|JavaScript|
+| #110 Balanced Binary Tree   | [leetcode.com](https://leetcode.com/problems/balanced-binary-tree/)  | Easy | JS(86.14%)|JavaScript|
+| #111 Minimum Depth of Binary Tree   | [leetcode.com](https://leetcode.com/problems/minimum-depth-of-binary-tree/)  | Easy | JS(82.75%) Python(91.92%)|JavaScript and Python|
+| #112 Path Sum   | [leetcode.com](https://leetcode.com/problems/path-sum/)  | Easy | JS(87.11%)|JavaScript|
+| #116 Populating Next Right Pointers in Each Node   | [leetcode.com](https://leetcode.com/problems/populating-next-right-pointers-in-each-node/)  | Medium | JS(91.90%)|JavaScript|
+| #118 Pascal's Triangle   | [leetcode.com](https://leetcode.com/problems/pascals-triangle/)  | Easy | JS(90.70%)|JavaScript|
+| #119 Pascal's Triangle II   | [leetcode.com](https://leetcode.com/problems/pascals-triangle-ii/)  | Easy | JS(57.75%)|JavaScript|
+| #125 Valid Palindrome   | [leetcode.com](https://leetcode.com/problems/valid-palindrome/)  | Easy | JS(96.54%)|JavaScript|
+| #127 Word Ladder   | [leetcode.com](https://leetcode.com/problems/word-ladder/)  | Medium | JS(91.07%) Python(91.14%)|JavaScript and Python|
+| #136 Single Number   | [leetcode.com](https://leetcode.com/problems/single-number/)  | Easy | JS(58.82%)|JavaScript|
+| #138 Copy List with Random Pointer  | [leetcode.com](https://leetcode.com/problems/copy-list-with-random-pointer/)  | Medium | JS(55.83%)|JavaScript|
+| #144 Binary Tree Preorder Traversal  | [leetcode.com](https://leetcode.com/problems/binary-tree-preorder-traversal/)  | Medium | JS(57.81%) Python(94.20%)|JavaScript and Python|
+| #145  Binary Tree Postorder Traversal  | [leetcode.com](https://leetcode.com/problems/binary-tree-postorder-traversal/)  | Hard | JS(98.13%) Python(94.33%)|JavaScript and Python|