Leetcode-practise_dsa

Solutions to some of the important questions asked in interviews by various companies.

Database


0180-consecutive-numbers

Array


0648-replace-words
3438-peaks-in-array

Hash Table


0648-replace-words

String


0648-replace-words

Trie


0648-replace-words

Binary Indexed Tree


3438-peaks-in-array

Segment Tree


3438-peaks-in-array

LeetCode Topics

Array


0503-next-greater-element-ii
2289-steps-to-make-array-non-decreasing
2865-beautiful-towers-i
2866-beautiful-towers-ii

Linked List


2289-steps-to-make-array-non-decreasing

Stack


0394-decode-string
0402-remove-k-digits
0503-next-greater-element-ii
2289-steps-to-make-array-non-decreasing
2865-beautiful-towers-i
2866-beautiful-towers-ii

Monotonic Stack


0402-remove-k-digits
0503-next-greater-element-ii
2289-steps-to-make-array-non-decreasing
2865-beautiful-towers-i
2866-beautiful-towers-ii

String


0394-decode-string
0402-remove-k-digits

Greedy


0402-remove-k-digits

Recursion


0394-decode-string

Name		Name	Last commit message	Last commit date
Latest commit History 878 Commits
0056-merge-intervals		0056-merge-intervals
0063-unique-paths-ii		0063-unique-paths-ii
0081-search-in-rotated-sorted-array-ii		0081-search-in-rotated-sorted-array-ii
0086-partition-list		0086-partition-list
0092-reverse-linked-list-ii		0092-reverse-linked-list-ii
0096-unique-binary-search-trees		0096-unique-binary-search-trees
0097-interleaving-string		0097-interleaving-string
0138-copy-list-with-random-pointer		0138-copy-list-with-random-pointer
0177-nth-highest-salary		0177-nth-highest-salary
0178-rank-scores		0178-rank-scores
0180-consecutive-numbers		0180-consecutive-numbers
0184-department-highest-salary		0184-department-highest-salary
0204-count-primes		0204-count-primes
0221-maximal-square		0221-maximal-square
0268-missing-number		0268-missing-number
0310-minimum-height-trees		0310-minimum-height-trees
0357-count-numbers-with-unique-digits		0357-count-numbers-with-unique-digits
0394-decode-string		0394-decode-string
0402-remove-k-digits		0402-remove-k-digits
0459-repeated-substring-pattern		0459-repeated-substring-pattern
0503-next-greater-element-ii		0503-next-greater-element-ii
0515-find-largest-value-in-each-tree-row		0515-find-largest-value-in-each-tree-row
0570-managers-with-at-least-5-direct-reports		0570-managers-with-at-least-5-direct-reports
0577-employee-bonus		0577-employee-bonus
0648-replace-words		0648-replace-words
0686-repeated-string-match		0686-repeated-string-match
0780-max-chunks-to-make-sorted		0780-max-chunks-to-make-sorted
100-same-tree		100-same-tree
101-symmetric-tree		101-symmetric-tree
103-binary-tree-zigzag-level-order-traversal		103-binary-tree-zigzag-level-order-traversal
104-maximum-depth-of-binary-tree		104-maximum-depth-of-binary-tree
105-construct-binary-tree-from-preorder-and-inorder-traversal		105-construct-binary-tree-from-preorder-and-inorder-traversal
108-convert-sorted-array-to-binary-search-tree		108-convert-sorted-array-to-binary-search-tree
110-balanced-binary-tree		110-balanced-binary-tree
1108-defanging-an-ip-address		1108-defanging-an-ip-address
1179-game-play-analysis-i		1179-game-play-analysis-i
124-binary-tree-maximum-path-sum		124-binary-tree-maximum-path-sum
130-surrounded-regions		130-surrounded-regions
1321-get-equal-substrings-within-budget		1321-get-equal-substrings-within-budget
1329-sort-the-matrix-diagonally		1329-sort-the-matrix-diagonally
1334-find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance		1334-find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance
1337-the-k-weakest-rows-in-a-matrix		1337-the-k-weakest-rows-in-a-matrix
1338-reduce-array-size-to-the-half		1338-reduce-array-size-to-the-half
134-gas-station		134-gas-station
135-candy		135-candy
146-lru-cache		146-lru-cache
15-3sum		15-3sum
1514-path-with-maximum-probability		1514-path-with-maximum-probability
153-find-minimum-in-rotated-sorted-array		153-find-minimum-in-rotated-sorted-array
1539-kth-missing-positive-number		1539-kth-missing-positive-number
154-find-minimum-in-rotated-sorted-array-ii		154-find-minimum-in-rotated-sorted-array-ii
1557-minimum-number-of-vertices-to-reach-all-nodes		1557-minimum-number-of-vertices-to-reach-all-nodes
1584-min-cost-to-connect-all-points		1584-min-cost-to-connect-all-points
169-majority-element		169-majority-element
1707-maximum-xor-with-an-element-from-array		1707-maximum-xor-with-an-element-from-array
1738-maximal-network-rank		1738-maximal-network-rank
1770-maximum-score-from-performing-multiplication-operations		1770-maximum-score-from-performing-multiplication-operations
1791-find-center-of-star-graph		1791-find-center-of-star-graph
188-best-time-to-buy-and-sell-stock-iv		188-best-time-to-buy-and-sell-stock-iv
1971-find-if-path-exists-in-graph		1971-find-if-path-exists-in-graph
1976-number-of-ways-to-arrive-at-destination		1976-number-of-ways-to-arrive-at-destination
1996-the-number-of-weak-characters-in-the-game		1996-the-number-of-weak-characters-in-the-game
200-number-of-islands		200-number-of-islands
2000-minimum-speed-to-arrive-on-time		2000-minimum-speed-to-arrive-on-time
2007-find-original-array-from-doubled-array		2007-find-original-array-from-doubled-array
2044-count-number-of-maximum-bitwise-or-subsets		2044-count-number-of-maximum-bitwise-or-subsets
207-course-schedule		207-course-schedule
208-implement-trie-prefix-tree		208-implement-trie-prefix-tree
210-course-schedule-ii		210-course-schedule-ii
2100-find-good-days-to-rob-the-bank		2100-find-good-days-to-rob-the-bank
211-design-add-and-search-words-data-structure		211-design-add-and-search-words-data-structure
215-kth-largest-element-in-an-array		215-kth-largest-element-in-an-array
22-generate-parentheses		22-generate-parentheses
222-count-complete-tree-nodes		222-count-complete-tree-nodes
2233-maximum-product-after-k-increments		2233-maximum-product-after-k-increments
2236-root-equals-sum-of-children		2236-root-equals-sum-of-children
2273-find-resultant-array-after-removing-anagrams		2273-find-resultant-array-after-removing-anagrams
2275-largest-combination-with-bitwise-and-greater-than-zero		2275-largest-combination-with-bitwise-and-greater-than-zero
2289-steps-to-make-array-non-decreasing		2289-steps-to-make-array-non-decreasing
229-majority-element-ii		229-majority-element-ii
23-merge-k-sorted-lists		23-merge-k-sorted-lists
230-kth-smallest-element-in-a-bst		230-kth-smallest-element-in-a-bst
2328-number-of-increasing-paths-in-a-grid		2328-number-of-increasing-paths-in-a-grid
234-palindrome-linked-list		234-palindrome-linked-list
2347-best-poker-hand		2347-best-poker-hand
235-lowest-common-ancestor-of-a-binary-search-tree		235-lowest-common-ancestor-of-a-binary-search-tree
2353-design-a-food-rating-system		2353-design-a-food-rating-system
2354-number-of-excellent-pairs		2354-number-of-excellent-pairs
236-lowest-common-ancestor-of-a-binary-tree		236-lowest-common-ancestor-of-a-binary-tree
2366-minimum-replacements-to-sort-the-array		2366-minimum-replacements-to-sort-the-array
2373-largest-local-values-in-a-matrix		2373-largest-local-values-in-a-matrix
2385-amount-of-time-for-binary-tree-to-be-infected		2385-amount-of-time-for-binary-tree-to-be-infected
24-swap-nodes-in-pairs		24-swap-nodes-in-pairs
2410-maximum-matching-of-players-with-trainers		2410-maximum-matching-of-players-with-trainers
2416-sum-of-prefix-scores-of-strings		2416-sum-of-prefix-scores-of-strings
242-valid-anagram		242-valid-anagram
2420-find-all-good-indices		2420-find-all-good-indices
2793-count-the-number-of-complete-components		2793-count-the-number-of-complete-components
2859-add-two-promises		2859-add-two-promises
2865-beautiful-towers-i		2865-beautiful-towers-i

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Leetcode-practise_dsa

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