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leetcode

this repo contains all the leetcode questions that I solve. It's a repo to re check my attempted questions and all solved questions at a place with the submission time and date and all the rest details including question description and leetcode question number

LeetCode Topics

Tree

0099-recover-binary-search-tree
1008-construct-binary-search-tree-from-preorder-traversal
1373-maximum-sum-bst-in-binary-tree
1382-balance-a-binary-search-tree

Depth-First Search

0079-word-search
0099-recover-binary-search-tree
0200-number-of-islands
0733-flood-fill
1373-maximum-sum-bst-in-binary-tree
1382-balance-a-binary-search-tree
1971-find-if-path-exists-in-graph

Binary Search Tree

0099-recover-binary-search-tree
0367-valid-perfect-square
1008-construct-binary-search-tree-from-preorder-traversal
1373-maximum-sum-bst-in-binary-tree
1382-balance-a-binary-search-tree
1851-minimum-interval-to-include-each-query

Binary Tree

0099-recover-binary-search-tree
1008-construct-binary-search-tree-from-preorder-traversal
1373-maximum-sum-bst-in-binary-tree
1382-balance-a-binary-search-tree

Array

0037-sudoku-solver
0039-combination-sum
0040-combination-sum-ii
0045-jump-game-ii
0046-permutations
0047-permutations-ii
0051-n-queens
0055-jump-game
0078-subsets
0079-word-search
0090-subsets-ii
0122-best-time-to-buy-and-sell-stock-ii
0134-gas-station
0135-candy
0140-word-break-ii
0200-number-of-islands
0215-kth-largest-element-in-an-array
0216-combination-sum-iii
0347-top-k-frequent-elements
0406-queue-reconstruction-by-height
0435-non-overlapping-intervals
0452-minimum-number-of-arrows-to-burst-balloons
0526-beautiful-arrangement
0621-task-scheduler
0733-flood-fill
0857-minimum-cost-to-hire-k-workers
0860-lemonade-change
0973-k-closest-points-to-origin
1008-construct-binary-search-tree-from-preorder-traversal
1029-two-city-scheduling
1051-height-checker
1219-path-with-maximum-gold
1851-minimum-interval-to-include-each-query

Stack

0402-remove-k-digits
1008-construct-binary-search-tree-from-preorder-traversal

Monotonic Stack

0402-remove-k-digits
1008-construct-binary-search-tree-from-preorder-traversal

Divide and Conquer

0023-merge-k-sorted-lists
0215-kth-largest-element-in-an-array
0347-top-k-frequent-elements
0973-k-closest-points-to-origin
1382-balance-a-binary-search-tree

Greedy

0045-jump-game-ii
0055-jump-game
0122-best-time-to-buy-and-sell-stock-ii
0134-gas-station
0135-candy
0402-remove-k-digits
0435-non-overlapping-intervals
0452-minimum-number-of-arrows-to-burst-balloons
0621-task-scheduler
0763-partition-labels
0857-minimum-cost-to-hire-k-workers
0860-lemonade-change
1029-two-city-scheduling
1382-balance-a-binary-search-tree

Math

0007-reverse-integer
0282-expression-add-operators
0367-valid-perfect-square
0973-k-closest-points-to-origin

Sorting

0047-permutations-ii
0215-kth-largest-element-in-an-array
0295-find-median-from-data-stream
0347-top-k-frequent-elements
0406-queue-reconstruction-by-height
0435-non-overlapping-intervals
0452-minimum-number-of-arrows-to-burst-balloons
0621-task-scheduler
0857-minimum-cost-to-hire-k-workers
0973-k-closest-points-to-origin
1029-two-city-scheduling
1051-height-checker
1851-minimum-interval-to-include-each-query

Counting Sort

0347-top-k-frequent-elements
0621-task-scheduler
1051-height-checker

Dynamic Programming

0045-jump-game-ii
0055-jump-game
0122-best-time-to-buy-and-sell-stock-ii
0140-word-break-ii
0435-non-overlapping-intervals
0526-beautiful-arrangement
1373-maximum-sum-bst-in-binary-tree

Hash Table

0037-sudoku-solver
0140-word-break-ii
0347-top-k-frequent-elements
0621-task-scheduler
0763-partition-labels

Heap (Priority Queue)

0023-merge-k-sorted-lists
0215-kth-largest-element-in-an-array
0295-find-median-from-data-stream
0347-top-k-frequent-elements
0621-task-scheduler
0857-minimum-cost-to-hire-k-workers
0973-k-closest-points-to-origin
1851-minimum-interval-to-include-each-query

Bucket Sort

0347-top-k-frequent-elements

Quickselect

0215-kth-largest-element-in-an-array
0347-top-k-frequent-elements
0973-k-closest-points-to-origin

Geometry

0973-k-closest-points-to-origin

Two Pointers

0295-find-median-from-data-stream
0763-partition-labels

Design

0295-find-median-from-data-stream

Data Stream

0295-find-median-from-data-stream

Linked List

0023-merge-k-sorted-lists

Merge Sort

0023-merge-k-sorted-lists

String

0079-word-search
0140-word-break-ii
0282-expression-add-operators
0301-remove-invalid-parentheses
0402-remove-k-digits
0763-partition-labels
0784-letter-case-permutation

Binary Indexed Tree

0406-queue-reconstruction-by-height

Segment Tree

0406-queue-reconstruction-by-height

Sweep Line

1851-minimum-interval-to-include-each-query

Backtracking

0037-sudoku-solver
0039-combination-sum
0040-combination-sum-ii
0046-permutations
0047-permutations-ii
0051-n-queens
0078-subsets
0079-word-search
0090-subsets-ii
0140-word-break-ii
0216-combination-sum-iii
0282-expression-add-operators
0301-remove-invalid-parentheses
0526-beautiful-arrangement
0784-letter-case-permutation
1219-path-with-maximum-gold

Bit Manipulation

0078-subsets
0090-subsets-ii
0526-beautiful-arrangement
0784-letter-case-permutation

Matrix

0037-sudoku-solver
0079-word-search
0200-number-of-islands
0733-flood-fill
1219-path-with-maximum-gold

Bitmask

0526-beautiful-arrangement

Trie

0140-word-break-ii

Memoization

0140-word-break-ii

Breadth-First Search

0200-number-of-islands
0301-remove-invalid-parentheses
0733-flood-fill
1971-find-if-path-exists-in-graph

Union-Find

0200-number-of-islands
1971-find-if-path-exists-in-graph

Graph Theory

1971-find-if-path-exists-in-graph

About

this repo contains all the leetcode questions that I solve. It's a repo to re check my attempted questions and all solved questions at a place with the submission time and date and all the rest details including question description and leetcode question number

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