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493 Commits
0088-merge-sorted-array
0088-merge-sorted-array
 
 
0176-second-highest-salary
0176-second-highest-salary
 
 
0177-nth-highest-salary
0177-nth-highest-salary
 
 
0184-department-highest-salary
0184-department-highest-salary
 
 
0219-contains-duplicate-ii
0219-contains-duplicate-ii
 
 
0228-summary-ranges
0228-summary-ranges
 
 
0287-find-the-duplicate-number
0287-find-the-duplicate-number
 
 
0303-range-sum-query-immutable
0303-range-sum-query-immutable
 
 
0328-odd-even-linked-list
0328-odd-even-linked-list
 
 
0409-longest-palindrome
0409-longest-palindrome
 
 
0414-third-maximum-number
0414-third-maximum-number
 
 
0448-find-all-numbers-disappeared-in-an-array
0448-find-all-numbers-disappeared-in-an-array
 
 
0455-assign-cookies
0455-assign-cookies
 
 
0459-repeated-substring-pattern
0459-repeated-substring-pattern
 
 
0520-detect-capital
0520-detect-capital
 
 
0521-longest-uncommon-subsequence-i
0521-longest-uncommon-subsequence-i
 
 
0561-array-partition
0561-array-partition
 
 
0594-longest-harmonious-subsequence
0594-longest-harmonious-subsequence
 
 
0599-minimum-index-sum-of-two-lists
0599-minimum-index-sum-of-two-lists
 
 
0643-maximum-average-subarray-i
0643-maximum-average-subarray-i
 
 
0674-longest-continuous-increasing-subsequence
0674-longest-continuous-increasing-subsequence
 
 
0680-valid-palindrome-ii
0680-valid-palindrome-ii
 
 
0724-find-pivot-index
0724-find-pivot-index
 
 
0747-min-cost-climbing-stairs
0747-min-cost-climbing-stairs
 
 
0792-binary-search
0792-binary-search
 
 
0841-shortest-distance-to-a-character
0841-shortest-distance-to-a-character
 
 
0941-sort-array-by-parity
0941-sort-array-by-parity
 
 
1-two-sum
1-two-sum
 
 
101-symmetric-tree
101-symmetric-tree
 
 
1013-fibonacci-number
1013-fibonacci-number
 
 
102-binary-tree-level-order-traversal
102-binary-tree-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
 
 
1086-divisor-game
1086-divisor-game
 
 
116-populating-next-right-pointers-in-each-node
116-populating-next-right-pointers-in-each-node
 
 
118-pascals-triangle
118-pascals-triangle
 
 
119-pascals-triangle-ii
119-pascals-triangle-ii
 
 
121-best-time-to-buy-and-sell-stock
121-best-time-to-buy-and-sell-stock
 
 
122-best-time-to-buy-and-sell-stock-ii
122-best-time-to-buy-and-sell-stock-ii
 
 
1236-n-th-tribonacci-number
1236-n-th-tribonacci-number
 
 
13-roman-to-integer
13-roman-to-integer
 
 
131-palindrome-partitioning
131-palindrome-partitioning
 
 
136-single-number
136-single-number
 
 
14-longest-common-prefix
14-longest-common-prefix
 
 
141-linked-list-cycle
141-linked-list-cycle
 
 
160-intersection-of-two-linked-lists
160-intersection-of-two-linked-lists
 
 
1603-running-sum-of-1d-array
1603-running-sum-of-1d-array
 
 
169-majority-element
169-majority-element
 
 
171-excel-sheet-column-number
171-excel-sheet-column-number
 
 
1746-largest-substring-between-two-equal-characters
1746-largest-substring-between-two-equal-characters
 
 
1764-maximum-repeating-substring
1764-maximum-repeating-substring
 
 
19-remove-nth-node-from-end-of-list
19-remove-nth-node-from-end-of-list
 
 
1908-recyclable-and-low-fat-products
1908-recyclable-and-low-fat-products
 
 
191-number-of-1-bits
191-number-of-1-bits
 
 
1987-substrings-of-size-three-with-distinct-characters
1987-substrings-of-size-three-with-distinct-characters
 
 
2-add-two-numbers
2-add-two-numbers
 
 
20-valid-parentheses
20-valid-parentheses
 
 
202-happy-number
202-happy-number
 
 
203-remove-linked-list-elements
203-remove-linked-list-elements
 
 
2059-unique-length-3-palindromic-subsequences
2059-unique-length-3-palindromic-subsequences
 
 
206-reverse-linked-list
206-reverse-linked-list
 
 
2077-largest-number-after-mutating-substring
2077-largest-number-after-mutating-substring
 
 
208-implement-trie-prefix-tree
208-implement-trie-prefix-tree
 
 
2099-number-of-strings-that-appear-as-substrings-in-word
2099-number-of-strings-that-appear-as-substrings-in-word
 
 
21-merge-two-sorted-lists
21-merge-two-sorted-lists
 
 
2128-reverse-prefix-of-word
2128-reverse-prefix-of-word
 
 
215-kth-largest-element-in-an-array
215-kth-largest-element-in-an-array
 
 
2154-minimum-moves-to-convert-string
2154-minimum-moves-to-convert-string
 
 
2163-kth-distinct-string-in-an-array
2163-kth-distinct-string-in-an-array
 
 
217-contains-duplicate
217-contains-duplicate
 
 
22-generate-parentheses
22-generate-parentheses
 
 
230-kth-smallest-element-in-a-bst
230-kth-smallest-element-in-a-bst
 
 
231-power-of-two
231-power-of-two
 
 
236-lowest-common-ancestor-of-a-binary-tree
236-lowest-common-ancestor-of-a-binary-tree
 
 
237-delete-node-in-a-linked-list
237-delete-node-in-a-linked-list
 
 
238-product-of-array-except-self
238-product-of-array-except-self
 
 
2389-design-a-text-editor
2389-design-a-text-editor
 
 
242-valid-anagram
242-valid-anagram
 
 
2495-number-of-unique-subjects-taught-by-each-teacher
2495-number-of-unique-subjects-taught-by-each-teacher
 
 
26-remove-duplicates-from-sorted-array
26-remove-duplicates-from-sorted-array
 
 
268-missing-number
268-missing-number
 
 
27-remove-element
27-remove-element
 
 
28-find-the-index-of-the-first-occurrence-in-a-string
28-find-the-index-of-the-first-occurrence-in-a-string
 
 
283-move-zeroes
283-move-zeroes
 
 
3-longest-substring-without-repeating-characters
3-longest-substring-without-repeating-characters
 
 
300-longest-increasing-subsequence
300-longest-increasing-subsequence
 
 
3000-minimum-absolute-difference-between-elements-with-constraint
3000-minimum-absolute-difference-between-elements-with-constraint
 
 
3143-longest-unequal-adjacent-groups-subsequence-i
3143-longest-unequal-adjacent-groups-subsequence-i
 
 
322-coin-change
322-coin-change
 
 
3276-minimum-number-of-pushes-to-type-word-ii
3276-minimum-number-of-pushes-to-type-word-ii
 
 
3312-number-of-changing-keys
3312-number-of-changing-keys
 
 
3372-longest-strictly-increasing-or-strictly-decreasing-subarray
3372-longest-strictly-increasing-or-strictly-decreasing-subarray
 
 
338-counting-bits
338-counting-bits
 
 
341-flatten-nested-list-iterator
341-flatten-nested-list-iterator
 
 
344-reverse-string
344-reverse-string
 
 
347-top-k-frequent-elements
347-top-k-frequent-elements
 
 
35-search-insert-position
35-search-insert-position
 
 
350-intersection-of-two-arrays-ii
350-intersection-of-two-arrays-ii
 
 
378-kth-smallest-element-in-a-sorted-matrix
378-kth-smallest-element-in-a-sorted-matrix
 
 

Repository files navigation

A collection of LeetCode questions to ace the coding interview! - Created using LeetHub v2

LeetCode Topics

Math
1086-divisor-game
1236-n-th-tribonacci-number

Dynamic Programming
1086-divisor-game
1236-n-th-tribonacci-number
1764-maximum-repeating-substring
3143-longest-unequal-adjacent-groups-subsequence-i

Brainteaser
1086-divisor-game

Game Theory
1086-divisor-game

Array
0088-merge-sorted-array
0219-contains-duplicate-ii
0228-summary-ranges
0287-find-the-duplicate-number
0303-range-sum-query-immutable
0414-third-maximum-number
0448-find-all-numbers-disappeared-in-an-array
0455-assign-cookies
0561-array-partition
0594-longest-harmonious-subsequence
0599-minimum-index-sum-of-two-lists
0643-maximum-average-subarray-i
0674-longest-continuous-increasing-subsequence
0724-find-pivot-index
0792-binary-search
0841-shortest-distance-to-a-character
0941-sort-array-by-parity
1603-running-sum-of-1d-array
2077-largest-number-after-mutating-substring
2099-number-of-strings-that-appear-as-substrings-in-word
3000-minimum-absolute-difference-between-elements-with-constraint
3143-longest-unequal-adjacent-groups-subsequence-i

String
0409-longest-palindrome
0459-repeated-substring-pattern
0520-detect-capital
0521-longest-uncommon-subsequence-i
0599-minimum-index-sum-of-two-lists
0680-valid-palindrome-ii
0841-shortest-distance-to-a-character
1746-largest-substring-between-two-equal-characters
1764-maximum-repeating-substring
1987-substrings-of-size-three-with-distinct-characters
2059-unique-length-3-palindromic-subsequences
2077-largest-number-after-mutating-substring
2099-number-of-strings-that-appear-as-substrings-in-word
2128-reverse-prefix-of-word
2154-minimum-moves-to-convert-string
3143-longest-unequal-adjacent-groups-subsequence-i
3312-number-of-changing-keys

Greedy
0409-longest-palindrome
0455-assign-cookies
0561-array-partition
0680-valid-palindrome-ii
2077-largest-number-after-mutating-substring
2154-minimum-moves-to-convert-string
3143-longest-unequal-adjacent-groups-subsequence-i

Memoization
1236-n-th-tribonacci-number

String Matching
0459-repeated-substring-pattern
1764-maximum-repeating-substring

Two Pointers
0088-merge-sorted-array
0287-find-the-duplicate-number
0455-assign-cookies
0680-valid-palindrome-ii
0841-shortest-distance-to-a-character
0941-sort-array-by-parity
2128-reverse-prefix-of-word

Sorting
0088-merge-sorted-array
0414-third-maximum-number
0455-assign-cookies
0561-array-partition
0594-longest-harmonious-subsequence
0941-sort-array-by-parity

Hash Table
0219-contains-duplicate-ii
0409-longest-palindrome
0448-find-all-numbers-disappeared-in-an-array
0594-longest-harmonious-subsequence
0599-minimum-index-sum-of-two-lists
1746-largest-substring-between-two-equal-characters
1987-substrings-of-size-three-with-distinct-characters
2059-unique-length-3-palindromic-subsequences

Sliding Window
0219-contains-duplicate-ii
0594-longest-harmonious-subsequence
0643-maximum-average-subarray-i
1987-substrings-of-size-three-with-distinct-characters

Counting
0594-longest-harmonious-subsequence
1987-substrings-of-size-three-with-distinct-characters

Binary Search
0287-find-the-duplicate-number
0792-binary-search
3000-minimum-absolute-difference-between-elements-with-constraint

Ordered Set
3000-minimum-absolute-difference-between-elements-with-constraint

Database
0176-second-highest-salary
0177-nth-highest-salary
0184-department-highest-salary
1908-recyclable-and-low-fat-products
2495-number-of-unique-subjects-taught-by-each-teacher
3816-dna-pattern-recognition
3848-analyze-subscription-conversion

Bit Manipulation
0287-find-the-duplicate-number
2059-unique-length-3-palindromic-subsequences

Prefix Sum
0303-range-sum-query-immutable
0724-find-pivot-index
1603-running-sum-of-1d-array
2059-unique-length-3-palindromic-subsequences

Linked List
0328-odd-even-linked-list

Counting Sort
0561-array-partition

Stack
2128-reverse-prefix-of-word

Design
0303-range-sum-query-immutable

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