My leetcode solutions Language: java ruby javascript python Last updated: 2018-06-09 The source code is fetched using the tool leetcode-spider. # Problems Solutions Difficulty Acceptance Paid-Only 001 two-sum java ruby javascript python Easy 38.34% 002 add-two-numbers ruby java Medium 28.85% 003 longest-substring-without-repeating-characters java ruby Medium 24.78% 006 zigzag-conversion ruby Medium 27.73% 007 reverse-integer javascript Easy 24.38% 020 valid-parentheses python Easy 34.18% 026 remove-duplicates-from-sorted-array java ruby Easy 36.87% 027 remove-element ruby Easy 41.18% 028 implement-strstr ruby Easy 29.25% 048 rotate-image python Medium 42.53% 067 add-binary ruby Easy 34.59% 106 construct-binary-tree-from-inorder-and-postorder-traversal ruby Medium 34.30% 107 binary-tree-level-order-traversal-ii ruby Easy 42.71% 108 convert-sorted-array-to-binary-search-tree ruby Easy 45.21% 110 balanced-binary-tree ruby Easy 38.68% 111 minimum-depth-of-binary-tree ruby Easy 33.71% 114 flatten-binary-tree-to-linked-list ruby Medium 37.15% 139 word-break ruby Medium 31.81% 144 binary-tree-preorder-traversal ruby Medium 47.36% 145 binary-tree-postorder-traversal ruby Hard 42.98% 150 evaluate-reverse-polish-notation java ruby Medium 28.84% 173 binary-search-tree-iterator ruby Medium 43.92% 199 binary-tree-right-side-view ruby Medium 43.01% 200 number-of-islands python Medium 37.04% 206 reverse-linked-list ruby Easy 47.42% 217 contains-duplicate ruby Easy 47.54% 219 contains-duplicate-ii java ruby Easy 32.98% 226 invert-binary-tree ruby Easy 53.90% 235 lowest-common-ancestor-of-a-binary-search-tree ruby Easy 39.98% 236 lowest-common-ancestor-of-a-binary-tree ruby Medium 29.89% 257 binary-tree-paths ruby Easy 41.84% 283 move-zeroes java ruby Easy 51.80% 292 nim-game ruby Easy 55.38% 297 serialize-and-deserialize-binary-tree ruby Hard 35.49% 325 maximum-size-subarray-sum-equals-k ruby Medium 43.09% ✔️ 768 partition-labels python Medium 64.54% 837 most-common-word python Easy 49.51%