LeetCodePractice

Solutions to LeetCode problems that I’ve solved, focusing on code optimization and efficient solutions.

My LeetCode Profile

Name		Name	Last commit message	Last commit date
Latest commit History 593 Commits
0001-two-sum		0001-two-sum
0002-add-two-numbers		0002-add-two-numbers
0003-longest-substring-without-repeating-characters		0003-longest-substring-without-repeating-characters
0012-integer-to-roman		0012-integer-to-roman
0013-roman-to-integer		0013-roman-to-integer
0014-longest-common-prefix		0014-longest-common-prefix
0017-letter-combinations-of-a-phone-number		0017-letter-combinations-of-a-phone-number
0018-4sum		0018-4sum
0019-remove-nth-node-from-end-of-list		0019-remove-nth-node-from-end-of-list
0020-valid-parentheses		0020-valid-parentheses
0021-merge-two-sorted-lists		0021-merge-two-sorted-lists
0022-generate-parentheses		0022-generate-parentheses
0023-merge-k-sorted-lists		0023-merge-k-sorted-lists
0033-search-in-rotated-sorted-array		0033-search-in-rotated-sorted-array
0042-trapping-rain-water		0042-trapping-rain-water
0045-jump-game-ii		0045-jump-game-ii
0049-group-anagrams		0049-group-anagrams
0050-powx-n		0050-powx-n
0053-maximum-subarray		0053-maximum-subarray
0055-jump-game		0055-jump-game
0056-merge-intervals		0056-merge-intervals
0069-sqrtx		0069-sqrtx
0070-climbing-stairs		0070-climbing-stairs
0078-subsets		0078-subsets
0079-word-search		0079-word-search
0088-merge-sorted-array		0088-merge-sorted-array
0090-subsets-ii		0090-subsets-ii
0094-binary-tree-inorder-traversal		0094-binary-tree-inorder-traversal
0098-validate-binary-search-tree		0098-validate-binary-search-tree
0101-symmetric-tree		0101-symmetric-tree
0102-binary-tree-level-order-traversal		0102-binary-tree-level-order-traversal
0103-binary-tree-zigzag-level-order-traversal		0103-binary-tree-zigzag-level-order-traversal
0104-maximum-depth-of-binary-tree		0104-maximum-depth-of-binary-tree
0105-construct-binary-tree-from-preorder-and-inorder-traversal		0105-construct-binary-tree-from-preorder-and-inorder-traversal
0106-construct-binary-tree-from-inorder-and-postorder-traversal		0106-construct-binary-tree-from-inorder-and-postorder-traversal
0108-convert-sorted-array-to-binary-search-tree		0108-convert-sorted-array-to-binary-search-tree
0109-convert-sorted-list-to-binary-search-tree		0109-convert-sorted-list-to-binary-search-tree
0116-populating-next-right-pointers-in-each-node		0116-populating-next-right-pointers-in-each-node
0117-populating-next-right-pointers-in-each-node-ii		0117-populating-next-right-pointers-in-each-node-ii
0122-best-time-to-buy-and-sell-stock-ii		0122-best-time-to-buy-and-sell-stock-ii
0124-binary-tree-maximum-path-sum		0124-binary-tree-maximum-path-sum
0128-longest-consecutive-sequence		0128-longest-consecutive-sequence
0136-single-number		0136-single-number
0138-copy-list-with-random-pointer		0138-copy-list-with-random-pointer
0141-linked-list-cycle		0141-linked-list-cycle
0143-reorder-list		0143-reorder-list
0162-find-peak-element		0162-find-peak-element
0169-majority-element		0169-majority-element
0172-factorial-trailing-zeroes		0172-factorial-trailing-zeroes
0179-largest-number		0179-largest-number
0198-house-robber		0198-house-robber
0200-number-of-islands		0200-number-of-islands
0203-remove-linked-list-elements		0203-remove-linked-list-elements
0204-count-primes		0204-count-primes
0205-isomorphic-strings		0205-isomorphic-strings
0208-implement-trie-prefix-tree		0208-implement-trie-prefix-tree
0212-word-search-ii		0212-word-search-ii
0213-house-robber-ii		0213-house-robber-ii
0215-kth-largest-element-in-an-array		0215-kth-largest-element-in-an-array
0224-basic-calculator		0224-basic-calculator
0230-kth-smallest-element-in-a-bst		0230-kth-smallest-element-in-a-bst
0236-lowest-common-ancestor-of-a-binary-tree		0236-lowest-common-ancestor-of-a-binary-tree
0239-sliding-window-maximum		0239-sliding-window-maximum
0242-valid-anagram		0242-valid-anagram
0273-integer-to-english-words		0273-integer-to-english-words
0278-first-bad-version		0278-first-bad-version
0279-perfect-squares		0279-perfect-squares
0283-move-zeroes		0283-move-zeroes
0297-serialize-and-deserialize-binary-tree		0297-serialize-and-deserialize-binary-tree
0322-coin-change		0322-coin-change
0344-reverse-string		0344-reverse-string
0349-intersection-of-two-arrays		0349-intersection-of-two-arrays
0380-insert-delete-getrandom-o1		0380-insert-delete-getrandom-o1
0394-decode-string		0394-decode-string
0414-third-maximum-number		0414-third-maximum-number
0419-battleships-in-a-board		0419-battleships-in-a-board
0421-maximum-xor-of-two-numbers-in-an-array		0421-maximum-xor-of-two-numbers-in-an-array
0506-relative-ranks		0506-relative-ranks
0509-fibonacci-number		0509-fibonacci-number
0515-find-largest-value-in-each-tree-row		0515-find-largest-value-in-each-tree-row
0557-reverse-words-in-a-string-iii		0557-reverse-words-in-a-string-iii
0560-subarray-sum-equals-k		0560-subarray-sum-equals-k
0671-second-minimum-node-in-a-binary-tree		0671-second-minimum-node-in-a-binary-tree
0680-valid-palindrome-ii		0680-valid-palindrome-ii
0690-employee-importance		0690-employee-importance
0704-binary-search		0704-binary-search
0974-subarray-sums-divisible-by-k		0974-subarray-sums-divisible-by-k
1002-find-common-characters		1002-find-common-characters
1089-duplicate-zeros		1089-duplicate-zeros
11-container-with-most-water		11-container-with-most-water
1108-defanging-an-ip-address		1108-defanging-an-ip-address
1122-relative-sort-array		1122-relative-sort-array
118-pascals-triangle		118-pascals-triangle
12-integer-to-roman		12-integer-to-roman
121-best-time-to-buy-and-sell-stock		121-best-time-to-buy-and-sell-stock
125-valid-palindrome		125-valid-palindrome
1268-search-suggestions-system		1268-search-suggestions-system
128-longest-consecutive-sequence		128-longest-consecutive-sequence
1282-group-the-people-given-the-group-size-they-belong-to		1282-group-the-people-given-the-group-size-they-belong-to
1295-find-numbers-with-even-number-of-digits		1295-find-numbers-with-even-number-of-digits

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