Competitive Programming Solutions 🚀

A curated collection of my solutions to competitive programming problems from various platforms, with a focus on efficiency and clean implementation.

📌 Platforms Covered

Codeforces (Profile)
LeetCode (Profile)
AtCoder (Profile)
CodeChef (Profile)
CSES Problem Set

Name		Name	Last commit message	Last commit date
Latest commit History 260 Commits
100-same-tree		100-same-tree
101-symmetric-tree		101-symmetric-tree
102-binary-tree-level-order-traversal		102-binary-tree-level-order-traversal
1039-find-the-town-judge		1039-find-the-town-judge
104-maximum-depth-of-binary-tree		104-maximum-depth-of-binary-tree
1041-available-captures-for-rook		1041-available-captures-for-rook
105-construct-binary-tree-from-preorder-and-inorder-traversal		105-construct-binary-tree-from-preorder-and-inorder-traversal
1056-capacity-to-ship-packages-within-d-days		1056-capacity-to-ship-packages-within-d-days
106-construct-binary-tree-from-inorder-and-postorder-traversal		106-construct-binary-tree-from-inorder-and-postorder-traversal
107-binary-tree-level-order-traversal-ii		107-binary-tree-level-order-traversal-ii
109-convert-sorted-list-to-binary-search-tree		109-convert-sorted-list-to-binary-search-tree
111-minimum-depth-of-binary-tree		111-minimum-depth-of-binary-tree
112-path-sum		112-path-sum
1129-longest-string-chain		1129-longest-string-chain
113-path-sum-ii		113-path-sum-ii
114-flatten-binary-tree-to-linked-list		114-flatten-binary-tree-to-linked-list
116-populating-next-right-pointers-in-each-node		116-populating-next-right-pointers-in-each-node
117-populating-next-right-pointers-in-each-node-ii		117-populating-next-right-pointers-in-each-node-ii
119-pascals-triangle-ii		119-pascals-triangle-ii
1206-corporate-flight-bookings		1206-corporate-flight-bookings
124-binary-tree-maximum-path-sum		124-binary-tree-maximum-path-sum
142-linked-list-cycle-ii		142-linked-list-cycle-ii
15-3sum		15-3sum
160-intersection-of-two-linked-lists		160-intersection-of-two-linked-lists
1666-make-the-string-great		1666-make-the-string-great
1667-find-kth-bit-in-nth-binary-string		1667-find-kth-bit-in-nth-binary-string
172-factorial-trailing-zeroes		172-factorial-trailing-zeroes
1737-maximum-nesting-depth-of-the-parentheses		1737-maximum-nesting-depth-of-the-parentheses
175-combine-two-tables		175-combine-two-tables
176-second-highest-salary		176-second-highest-salary
181-employees-earning-more-than-their-managers		181-employees-earning-more-than-their-managers
19-remove-nth-node-from-end-of-list		19-remove-nth-node-from-end-of-list
198-house-robber		198-house-robber
199-binary-tree-right-side-view		199-binary-tree-right-side-view
203-remove-linked-list-elements		203-remove-linked-list-elements
2050-count-good-numbers		2050-count-good-numbers
213-house-robber-ii		213-house-robber-ii
2159-two-out-of-three		2159-two-out-of-three
219-contains-duplicate-ii		219-contains-duplicate-ii
222-count-complete-tree-nodes		222-count-complete-tree-nodes
2240-intervals-between-identical-elements		2240-intervals-between-identical-elements
226-invert-binary-tree		226-invert-binary-tree
230-kth-smallest-element-in-a-bst		230-kth-smallest-element-in-a-bst
231-power-of-two		231-power-of-two
2347-count-nodes-equal-to-average-of-subtree		2347-count-nodes-equal-to-average-of-subtree
235-lowest-common-ancestor-of-a-binary-search-tree		235-lowest-common-ancestor-of-a-binary-search-tree
236-lowest-common-ancestor-of-a-binary-tree		236-lowest-common-ancestor-of-a-binary-tree
2383-add-two-integers		2383-add-two-integers
257-binary-tree-paths		257-binary-tree-paths
2573-remove-nodes-from-linked-list		2573-remove-nodes-from-linked-list
258-add-digits		258-add-digits
2585-delete-greatest-value-in-each-row		2585-delete-greatest-value-in-each-row
2756-buy-two-chocolates		2756-buy-two-chocolates
278-first-bad-version		278-first-bad-version
287-find-the-duplicate-number		287-find-the-duplicate-number
303-range-sum-query-immutable		303-range-sum-query-immutable
331-verify-preorder-serialization-of-a-binary-tree		331-verify-preorder-serialization-of-a-binary-tree
342-power-of-four		342-power-of-four
347-top-k-frequent-elements		347-top-k-frequent-elements
394-decode-string		394-decode-string
404-sum-of-left-leaves		404-sum-of-left-leaves
448-find-all-numbers-disappeared-in-an-array		448-find-all-numbers-disappeared-in-an-array
46-permutations		46-permutations
486-predict-the-winner		486-predict-the-winner
496-next-greater-element-i		496-next-greater-element-i
5-longest-palindromic-substring		5-longest-palindromic-substring
50-powx-n		50-powx-n
501-find-mode-in-binary-search-tree		501-find-mode-in-binary-search-tree
525-contiguous-array		525-contiguous-array
543-diameter-of-binary-tree		543-diameter-of-binary-tree
572-subtree-of-another-tree		572-subtree-of-another-tree
645-set-mismatch		645-set-mismatch
70-climbing-stairs		70-climbing-stairs
740-delete-and-earn		740-delete-and-earn
766-flatten-a-multilevel-doubly-linked-list		766-flatten-a-multilevel-doubly-linked-list
772-construct-quad-tree		772-construct-quad-tree
78-subsets		78-subsets
82-remove-duplicates-from-sorted-list-ii		82-remove-duplicates-from-sorted-list-ii
820-find-eventual-safe-states		820-find-eventual-safe-states
83-remove-duplicates-from-sorted-list		83-remove-duplicates-from-sorted-list
838-design-linked-list		838-design-linked-list
86-partition-list		86-partition-list
908-middle-of-the-linked-list		908-middle-of-the-linked-list
941-sort-array-by-parity		941-sort-array-by-parity
948-sort-an-array		948-sort-an-array
96-unique-binary-search-trees		96-unique-binary-search-trees
98-validate-binary-search-tree		98-validate-binary-search-tree
99-recover-binary-search-tree		99-recover-binary-search-tree
3 sum		3 sum
3Sum		3Sum
Best Time to Buy and Sell Stock		Best Time to Buy and Sell Stock
Best Time to Buy and Sell Stock II		Best Time to Buy and Sell Stock II
Container With Most Water		Container With Most Water
Find Minimum in Rotated Sorted Array		Find Minimum in Rotated Sorted Array
Linked List Cycle		Linked List Cycle
Linked List Cycle II		Linked List Cycle II
Longest Repeating Character Replacement		Longest Repeating Character Replacement
Longest String Chain		Longest String Chain
Longest Substring Without Repeating Characters		Longest Substring Without Repeating Characters
Merge Two Sorted Lists		Merge Two Sorted Lists

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