Leetcode Solutions Repository

Welcome to the Leetcode Solutions repository! This repository contains solutions to a wide range of LeetCode problems to help with learning algorithms and preparing for technical interviews.

Repository structure

Each problem is organized in its own folder, typically named with the problem number and title (for example 0008-string-to-integer-atoi/). Solutions are written primarily in Java and Python. Use the folder names to quickly locate solutions for specific problems.

Example layout:

0008-string-to-integer-atoi/
0009-palindrome-number/
...
3169-count-days-without-meetings/
README.md

How to use

Browse folders to find solutions for specific problems.
Read the comments in solution files for explanations and complexity notes.
Run Java solutions with javac/java or using an IDE. Run Python solutions with python3.

Contributing

Contributions are welcome! If you would like to:

Add solutions in new languages,
Improve explanations or add tests,
Fix formatting or typos,

please open a pull request. If you plan to contribute many files, open an issue first to discuss structure and naming.

License

This repository is provided for learning and practice. If you want a specific license, add a LICENSE file (e.g., MIT) or let me know and I can add one for you.

Links

Repository: https://github.com/Tamilvendhan23/Leetcode

Happy coding!

Name		Name	Last commit message	Last commit date
Latest commit History 568 Commits
0008-string-to-integer-atoi		0008-string-to-integer-atoi
0009-palindrome-number		0009-palindrome-number
0010-regular-expression-matching		0010-regular-expression-matching
0011-container-with-most-water		0011-container-with-most-water
0012-integer-to-roman		0012-integer-to-roman
0013-roman-to-integer		0013-roman-to-integer
0014-longest-common-prefix		0014-longest-common-prefix
0015-3sum		0015-3sum
0016-3sum-closest		0016-3sum-closest
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
0036-valid-sudoku		0036-valid-sudoku
0037-sudoku-solver		0037-sudoku-solver
0038-count-and-say		0038-count-and-say
0055-jump-game		0055-jump-game
0073-set-matrix-zeroes		0073-set-matrix-zeroes
0075-sort-colors		0075-sort-colors
0088-merge-sorted-array		0088-merge-sorted-array
0118-pascals-triangle		0118-pascals-triangle
0135-candy		0135-candy
0231-power-of-two		0231-power-of-two
0326-power-of-three		0326-power-of-three
0342-power-of-four		0342-power-of-four
0368-largest-divisible-subset		0368-largest-divisible-subset
0407-trapping-rain-water-ii		0407-trapping-rain-water-ii
0416-partition-equal-subset-sum		0416-partition-equal-subset-sum
0440-k-th-smallest-in-lexicographical-order		0440-k-th-smallest-in-lexicographical-order
0494-target-sum		0494-target-sum
0498-diagonal-traverse		0498-diagonal-traverse
0515-find-largest-value-in-each-tree-row		0515-find-largest-value-in-each-tree-row
0594-longest-harmonious-subsequence		0594-longest-harmonious-subsequence
0679-24-game		0679-24-game
0684-redundant-connection		0684-redundant-connection
0689-maximum-sum-of-3-non-overlapping-subarrays		0689-maximum-sum-of-3-non-overlapping-subarrays
0763-partition-labels		0763-partition-labels
0781-rabbits-in-forest		0781-rabbits-in-forest
0790-domino-and-tromino-tiling		0790-domino-and-tromino-tiling
0802-find-eventual-safe-states		0802-find-eventual-safe-states
0808-soup-servings		0808-soup-servings
0827-making-a-large-island		0827-making-a-large-island
0837-new-21-game		0837-new-21-game
0838-push-dominoes		0838-push-dominoes
0869-reordered-power-of-2		0869-reordered-power-of-2
0873-length-of-longest-fibonacci-subsequence		0873-length-of-longest-fibonacci-subsequence
0889-construct-binary-tree-from-preorder-and-postorder-traversal		0889-construct-binary-tree-from-preorder-and-postorder-traversal
0898-bitwise-ors-of-subarrays		0898-bitwise-ors-of-subarrays
0904-fruit-into-baskets		0904-fruit-into-baskets
0909-snakes-and-ladders		0909-snakes-and-ladders
0916-word-subsets		0916-word-subsets
0983-minimum-cost-for-tickets		0983-minimum-cost-for-tickets
1007-minimum-domino-rotations-for-equal-row		1007-minimum-domino-rotations-for-equal-row
1014-best-sightseeing-pair		1014-best-sightseeing-pair
1028-recover-a-tree-from-preorder-traversal		1028-recover-a-tree-from-preorder-traversal
1061-lexicographically-smallest-equivalent-string		1061-lexicographically-smallest-equivalent-string
1079-letter-tile-possibilities		1079-letter-tile-possibilities
1092-shortest-common-supersequence		1092-shortest-common-supersequence
1123-lowest-common-ancestor-of-deepest-leaves		1123-lowest-common-ancestor-of-deepest-leaves
1128-number-of-equivalent-domino-pairs		1128-number-of-equivalent-domino-pairs
1233-remove-sub-folders-from-the-filesystem		1233-remove-sub-folders-from-the-filesystem
1261-find-elements-in-a-contaminated-binary-tree		1261-find-elements-in-a-contaminated-binary-tree
1267-count-servers-that-communicate		1267-count-servers-that-communicate
1277-count-square-submatrices-with-all-ones		1277-count-square-submatrices-with-all-ones
1290-convert-binary-number-in-a-linked-list-to-integer		1290-convert-binary-number-in-a-linked-list-to-integer
1295-find-numbers-with-even-number-of-digits		1295-find-numbers-with-even-number-of-digits
1298-maximum-candies-you-can-get-from-boxes		1298-maximum-candies-you-can-get-from-boxes
1304-find-n-unique-integers-sum-up-to-zero		1304-find-n-unique-integers-sum-up-to-zero
1317-convert-integer-to-the-sum-of-two-no-zero-integers		1317-convert-integer-to-the-sum-of-two-no-zero-integers
1323-maximum-69-number		1323-maximum-69-number
1352-product-of-the-last-k-numbers		1352-product-of-the-last-k-numbers
1353-maximum-number-of-events-that-can-be-attended		1353-maximum-number-of-events-that-can-be-attended
1358-number-of-substrings-containing-all-three-characters		1358-number-of-substrings-containing-all-three-characters
1368-minimum-cost-to-make-at-least-one-valid-path-in-a-grid		1368-minimum-cost-to-make-at-least-one-valid-path-in-a-grid
1394-find-lucky-integer-in-an-array		1394-find-lucky-integer-in-an-array
1399-count-largest-group		1399-count-largest-group
1400-construct-k-palindrome-strings		1400-construct-k-palindrome-strings
1408-string-matching-in-an-array		1408-string-matching-in-an-array
1415-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n		1415-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n
1422-maximum-score-after-splitting-a-string		1422-maximum-score-after-splitting-a-string
1432-max-difference-you-can-get-from-changing-an-integer		1432-max-difference-you-can-get-from-changing-an-integer
1462-course-schedule-iv		1462-course-schedule-iv
1493-longest-subarray-of-1s-after-deleting-one-element		1493-longest-subarray-of-1s-after-deleting-one-element
1498-number-of-subsequences-that-satisfy-the-given-sum-condition		1498-number-of-subsequences-that-satisfy-the-given-sum-condition
1504-count-submatrices-with-all-ones		1504-count-submatrices-with-all-ones
1524-number-of-sub-arrays-with-odd-sum		1524-number-of-sub-arrays-with-odd-sum
1550-three-consecutive-odds		1550-three-consecutive-odds
1639-number-of-ways-to-form-a-target-string-given-a-dictionary		1639-number-of-ways-to-form-a-target-string-given-a-dictionary
1656-count-good-triplets		1656-count-good-triplets
1695-maximum-erasure-value		1695-maximum-erasure-value
1717-maximum-score-from-removing-substrings		1717-maximum-score-from-removing-substrings
1718-construct-the-lexicographically-largest-valid-sequence		1718-construct-the-lexicographically-largest-valid-sequence
1726-tuple-with-same-product		1726-tuple-with-same-product
1749-maximum-absolute-sum-of-any-subarray		1749-maximum-absolute-sum-of-any-subarray
1751-maximum-number-of-events-that-can-be-attended-ii		1751-maximum-number-of-events-that-can-be-attended-ii
1752-check-if-array-is-sorted-and-rotated		1752-check-if-array-is-sorted-and-rotated
1765-map-of-highest-peak		1765-map-of-highest-peak

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Repository files navigation

Leetcode Solutions Repository

Repository structure

How to use

Contributing

License

Links

About

Uh oh!

Releases

Packages

Languages

Tamilvendhan23/Leetcode

Folders and files

Latest commit

History

Repository files navigation

Leetcode Solutions Repository

Repository structure

How to use

Contributing

License

Links

About

Topics

Resources

Uh oh!

Stars

Watchers

Forks

Releases

Packages 0

Languages

Packages