├── .gitignore ├── README.md ├── leetcode-1-two-sum.swift ├── leetcode-1008-construct-binary-search-tree-from-preorder-traversal.swift ├── leetcode-101-symmetric-tree.swift ├── leetcode-102-binary-tree-level-order-traversal.swift ├── leetcode-103-binary-tree-zigzag-level-order-traversal.swift ├── leetcode-104-maximum-depth-of-binary-tree.swift ├── leetcode-1167-minimum-cost-to-connect-sticks.swift ├── leetcode-12-integer-to-roman.swift ├── leetcode-121-best-time-to-buy-and-sell-stock.swift ├── leetcode-1232-check-if-it-is-a-straight-line.swift ├── leetcode-124-binary-tree-maximum-path-sum.swift ├── leetcode-1268-search-suggestions-system.swift ├── leetcode-127-word-ladder.swift ├── leetcode-1277-count-square-submatrices-with-all-ones.swift ├── leetcode-13-roman-to-integer.swift ├── leetcode-1347-minimum-number-of-steps-to-make-two-strings-anagram.swift ├── leetcode-138-copy-list-with-random-pointer.swift ├── leetcode-139-word-break.swift ├── leetcode-1431-kids-with-the-greatest-number-of-candies.swift ├── leetcode-144-binary-tree-preorder-traversal.swift ├── leetcode-1441-build-an-array-with-stack-operations.swift ├── leetcode-145-binary-tree-postorder-traversal.swift ├── leetcode-146-lru-cache.swift ├── leetcode-15-three-sum.swift ├── leetcode-155-min-stack.swift ├── leetcode-160-intersection-of-two-linked-lists.swift ├── leetcode-167-two-sum-II-input-array-is-sorted.swift ├── leetcode-173-binary-search-tree-iterator.swift ├── leetcode-189-rotate-array.swift ├── leetcode-199-binary-tree-right-side-view.swift ├── leetcode-2-add-two-numbers.swift ├── leetcode-20-valid-parentheses.swift ├── leetcode-200-number-of-islands.swift ├── leetcode-203-remove-linked-list-elements.swift ├── leetcode-206-reverse-linked-list.swift ├── leetcode-207-course-schedule.swift ├── leetcode-208-implement-trie-prefix-tree.swift ├── leetcode-21-merge-two-sorted-lists.swift ├── leetcode-210-course-schedule-ii.swift ├── leetcode-226-invert-binary-tree.swift ├── leetcode-23-merge-k-sorted-lists.swift ├── leetcode-230-kth-smallest-element-in-a-bst.swift ├── leetcode-231-power-of-two.swift ├── leetcode-232-implement-queue-using-stacks.swift ├── leetcode-234-palindrome-linked-list.swift ├── leetcode-236-lowest-common-ancestor-of-a-binary-tree.swift ├── leetcode-237-delete-node-in-a-linked-list.swift ├── leetcode-238-product-of-array-except-self.swift ├── leetcode-24-swap-nodes-in-pairs.swift ├── leetcode-240-search-a-2d-matrix-ii.swift ├── leetcode-252-meeting-room.swift ├── leetcode-253-meeting-rooms-ii.swift ├── leetcode-270-closest-binary-search-tree-value.swift ├── leetcode-286-walls-and-gates.swift ├── leetcode-293-flip-game.swift ├── leetcode-297-serialize-and-deserialize-binary-tree.swift ├── leetcode-3-longest-substring-without-repeating-characters.swift ├── leetcode-328-odd-even-linked-list.swift ├── leetcode-332-reconstruct-itinerary.swift ├── leetcode-334-reverse-string.swift ├── leetcode-347-top-k-frequent-elements.swift ├── leetcode-348-design-tic-tac-toe.swift ├── leetcode-349-intersection-of-two-arrays.swift ├── leetcode-367-valid-perfect-square.swift ├── leetcode-380-insert-delete-getrandom-o1.swift ├── leetcode-392-is-subsequence.swift ├── leetcode-402-remove-k-digits.swift ├── leetcode-403-frog-jump.swift ├── leetcode-412-fizz-buzz.swift ├── leetcode-42-trapping-rain-water.swift ├── leetcode-438-find-all-anagrams-in-a-string.swift ├── leetcode-443-string-compression.swift ├── leetcode-448-find-all-numbers-disappeared-in-an-array.swift ├── leetcode-451-sort-characters-by-frequence.swift ├── leetcode-48-rotate-image.swift ├── leetcode-49-group-anagrams.swift ├── leetcode-509-fibonacci-number.swift ├── leetcode-53-maximum-subarray.swift ├── leetcode-540-single-element-in-a-sorted-array.swift ├── leetcode-547-friend-circles.swift ├── leetcode-567-permutation-of-string.swift ├── leetcode-572-subtree-of-another-tree.swift ├── leetcode-58-length-of-last-word.swift ├── leetcode-637-average-of-levels-in-binry-tree.swift ├── leetcode-653-two-sum-iv-input-is-a-bst.swift ├── leetcode-657-robot-return-to-origin.swift ├── leetcode-692-top-k-frequent-words.swift ├── leetcode-695-max-area-of-island.swift ├── leetcode-70-climbing-stairs.swift ├── leetcode-700-search-in-a-binary-search-tree.swift ├── leetcode-706-design-hashmap.swift ├── leetcode-773-flood-fill.swift ├── leetcode-78-subsets.swift ├── leetcode-8-string-to-integer-atoi.swift ├── leetcode-811-subdomain-visit-count.swift ├── leetcode-819-most-common-word.swift ├── leetcode-844-backspace-string-compare.swift ├── leetcode-88-merge-sorted-array.swift ├── leetcode-918-maximum-sum-circular-subarray.swift ├── leetcode-937-reorder-data-in-log-files.swift ├── leetcode-94-binary-tree-inorder-traversal.swift ├── leetcode-957-prison-cells-after-n-days.swift ├── leetcode-966-vowel-spellchecker.swift ├── leetcode-973-k-closest-points-to-origin.swift ├── leetcode-98-validate-binary-search-tree.swift ├── leetcode-993-cousins-in-binary-tree.swift ├── leetcode-994-rotting-oranges.swift └── leetcode-997-find-the-town-judge.swift /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/davidseek/leetcode-swift/HEAD/README.md -------------------------------------------------------------------------------- /leetcode-1-two-sum.swift: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/davidseek/leetcode-swift/HEAD/leetcode-1-two-sum.swift -------------------------------------------------------------------------------- /leetcode-1008-construct-binary-search-tree-from-preorder-traversal.swift: 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