Competitive Programming Problems from Various Platforms

Welcome to the Competitive Programming Problems GitHub repository! This repository is a curated collection of coding problems sourced from various platforms like LeetCode, HackerEarth, HackerRank, GeeksforGeeks, Coding Ninjas, and CodeChef. The problems are categorized and organized to help you practice and improve your algorithmic and data structure skills.

Problem Platforms

Contribution Guidelines

I encourage contributions from the community to enhance the problem collection. If you come across interesting problems from any of the mentioned platforms or have created your own, follow these steps to contribute:

Fork this repository: Click the "Fork" button in the top right corner of this page to create your copy of the repository.
Clone the repository: Clone your forked repository to your local development environment using the following command:
Add new problems: Place the problem statement in the appropriate platform and category directory. Ensure you include any necessary input/output examples.
Commit and Push: Commit your changes and push them to your forked repository:
Create a Pull Request: Go to the main page of your forked repository on GitHub and click the "New Pull Request" button. Fill out the necessary details and submit your pull request. We'll review your contribution and merge it if everything looks good!

Disclaimer

Please note that the problems in this repository are sourced from external platforms, and each problem may have its own specific terms of use and licenses. Be sure to comply with the terms and conditions of each platform when using these problems for practice.

Acknowledgments

I like to express our gratitude to all the platforms for providing such a rich collection of programming problems to help the coding community grow.

Happy Coding! 🚀

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Competitive Programming Problems from Various Platforms

Problem Platforms

Contribution Guidelines

Disclaimer

Acknowledgments

About

Languages

Name		Name	Last commit message	Last commit date
Latest commit History 1,901 Commits
.vscode		.vscode
10-regular-expression-matching		10-regular-expression-matching
100-same-tree		100-same-tree
1021-distribute-coins-in-binary-tree		1021-distribute-coins-in-binary-tree
1030-smallest-string-starting-from-leaf		1030-smallest-string-starting-from-leaf
1034-subarrays-with-k-different-integers		1034-subarrays-with-k-different-integers
1039-find-the-town-judge		1039-find-the-town-judge
1092-maximum-difference-between-node-and-ancestor		1092-maximum-difference-between-node-and-ancestor
1112-find-words-that-can-be-formed-by-characters		1112-find-words-that-can-be-formed-by-characters
1121-partition-array-for-maximum-sum		1121-partition-array-for-maximum-sum
1137-height-checker		1137-height-checker
1145-number-of-submatrices-that-sum-to-target		1145-number-of-submatrices-that-sum-to-target
115-distinct-subsequences		115-distinct-subsequences
118-pascals-triangle		118-pascals-triangle
12-integer-to-roman		12-integer-to-roman
1212-sequential-digits		1212-sequential-digits
1217-relative-sort-array		1217-relative-sort-array
1221-element-appearing-more-than-25-in-sorted-array		1221-element-appearing-more-than-25-in-sorted-array
1224-minimum-falling-path-sum-ii		1224-minimum-falling-path-sum-ii
1250-longest-common-subsequence		1250-longest-common-subsequence
1263-number-of-dice-rolls-with-target-sum		1263-number-of-dice-rolls-with-target-sum
1309-sort-items-by-groups-respecting-dependencies		1309-sort-items-by-groups-respecting-dependencies
1319-unique-number-of-occurrences		1319-unique-number-of-occurrences
1331-path-with-maximum-gold		1331-path-with-maximum-gold
1332-count-vowels-permutation		1332-count-vowels-permutation
1354-find-players-with-zero-or-one-losses		1354-find-players-with-zero-or-one-losses
1360-maximum-length-of-a-concatenated-string-with-unique-characters		1360-maximum-length-of-a-concatenated-string-with-unique-characters
138-copy-list-with-random-pointer		138-copy-list-with-random-pointer
139-word-break		139-word-break
1395-minimum-time-visiting-all-points		1395-minimum-time-visiting-all-points
141-linked-list-cycle		141-linked-list-cycle
1421-find-numbers-with-even-number-of-digits		1421-find-numbers-with-even-number-of-digits
143-reorder-list		143-reorder-list
1451-minimum-number-of-taps-to-open-to-water-a-garden		1451-minimum-number-of-taps-to-open-to-water-a-garden
1457-minimum-difficulty-of-a-job-schedule		1457-minimum-difficulty-of-a-job-schedule
1458-sort-integers-by-the-number-of-1-bits		1458-sort-integers-by-the-number-of-1-bits
1461-count-all-valid-pickup-and-delivery-options		1461-count-all-valid-pickup-and-delivery-options
150-evaluate-reverse-polish-notation		150-evaluate-reverse-polish-notation
151-reverse-words-in-a-string		151-reverse-words-in-a-string
1528-kids-with-the-greatest-number-of-candies		1528-kids-with-the-greatest-number-of-candies
1537-maximum-score-after-splitting-a-string		1537-maximum-score-after-splitting-a-string
1552-build-an-array-with-stack-operations		1552-build-an-array-with-stack-operations
1553-count-triplets-that-can-form-two-arrays-of-equal-xor		1553-count-triplets-that-can-form-two-arrays-of-equal-xor
1559-cherry-pickup-ii		1559-cherry-pickup-ii
1568-pseudo-palindromic-paths-in-a-binary-tree		1568-pseudo-palindromic-paths-in-a-binary-tree
1574-maximum-product-of-two-elements-in-an-array		1574-maximum-product-of-two-elements-in-an-array
1604-least-number-of-unique-integers-after-k-removals		1604-least-number-of-unique-integers-after-k-removals
1613-find-critical-and-pseudo-critical-edges-in-minimum-spanning-tree		1613-find-critical-and-pseudo-critical-edges-in-minimum-spanning-tree
1619-path-crossing		1619-path-crossing
1627-last-moment-before-all-ants-fall-out-of-a-plank		1627-last-moment-before-all-ants-fall-out-of-a-plank
1637-string-compression-ii		1637-string-compression-ii
165-compare-version-numbers		165-compare-version-numbers
1657-find-the-winner-of-an-array-game		1657-find-the-winner-of-an-array-game
1683-maximum-number-of-coins-you-can-get		1683-maximum-number-of-coins-you-can-get
17-letter-combinations-of-a-phone-number		17-letter-combinations-of-a-phone-number
1700-minimum-time-to-make-rope-colorful		1700-minimum-time-to-make-rope-colorful
1704-special-positions-in-a-binary-matrix		1704-special-positions-in-a-binary-matrix
1731-even-odd-tree		1731-even-odd-tree
1732-minimum-one-bit-operations-to-make-integers-zero		1732-minimum-one-bit-operations-to-make-integers-zero
1737-maximum-nesting-depth-of-the-parentheses		1737-maximum-nesting-depth-of-the-parentheses
1738-maximal-network-rank		1738-maximal-network-rank
1746-largest-substring-between-two-equal-characters		1746-largest-substring-between-two-equal-characters
1752-arithmetic-subarrays		1752-arithmetic-subarrays
1770-minimum-deletions-to-make-character-frequencies-unique		1770-minimum-deletions-to-make-character-frequencies-unique
1777-determine-if-two-strings-are-close		1777-determine-if-two-strings-are-close
1781-check-if-two-string-arrays-are-equivalent		1781-check-if-two-string-arrays-are-equivalent
1806-count-of-matches-in-tournament		1806-count-of-matches-in-tournament
1823-determine-if-string-halves-are-alike		1823-determine-if-string-halves-are-alike
1845-largest-submatrix-with-rearrangements		1845-largest-submatrix-with-rearrangements
1850-minimum-length-of-string-after-deleting-similar-ends		1850-minimum-length-of-string-after-deleting-similar-ends
1866-restore-the-array-from-adjacent-pairs		1866-restore-the-array-from-adjacent-pairs
1884-minimum-changes-to-make-alternating-binary-string		1884-minimum-changes-to-make-alternating-binary-string
1885-count-number-of-homogenous-substrings		1885-count-number-of-homogenous-substrings
19-remove-nth-node-from-end-of-list		19-remove-nth-node-from-end-of-list
1925-count-nice-pairs-in-an-array		1925-count-nice-pairs-in-an-array
1955-seat-reservation-manager		1955-seat-reservation-manager
1956-maximum-element-after-decreasing-and-rearranging		1956-maximum-element-after-decreasing-and-rearranging
1966-frequency-of-the-most-frequent-element		1966-frequency-of-the-most-frequent-element
198-house-robber		198-house-robber
1988-minimize-maximum-pair-sum-in-array		1988-minimize-maximum-pair-sum-in-array
1993-sum-of-all-subset-xor-totals		1993-sum-of-all-subset-xor-totals
200-number-of-islands		200-number-of-islands
201-bitwise-and-of-numbers-range		201-bitwise-and-of-numbers-range
2025-redistribute-characters-to-make-all-strings-equal		2025-redistribute-characters-to-make-all-strings-equal
2032-largest-odd-number-in-string		2032-largest-odd-number-in-string
2049-eliminate-maximum-number-of-monsters		2049-eliminate-maximum-number-of-monsters
2059-unique-length-3-palindromic-subsequences		2059-unique-length-3-palindromic-subsequences
206-reverse-linked-list		206-reverse-linked-list
2103-find-all-groups-of-farmland		2103-find-all-groups-of-farmland
2107-find-unique-binary-string		2107-find-unique-binary-string
2128-reverse-prefix-of-word		2128-reverse-prefix-of-word
215-kth-largest-element-in-an-array		215-kth-largest-element-in-an-array
2195-time-needed-to-buy-tickets		2195-time-needed-to-buy-tickets
2231-find-first-palindromic-string-in-the-array		2231-find-first-palindromic-string-in-the-array
2244-number-of-laser-beams-in-a-bank		2244-number-of-laser-beams-in-a-bank
225-implement-stack-using-queues		225-implement-stack-using-queues
2251-number-of-ways-to-divide-a-long-corridor		2251-number-of-ways-to-divide-a-long-corridor
2271-rearrange-array-elements-by-sign		2271-rearrange-array-elements-by-sign
231-power-of-two		231-power-of-two
2347-count-nodes-equal-to-average-of-subtree		2347-count-nodes-equal-to-average-of-subtree

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Competitive Programming Problems from Various Platforms

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