iamitshri/leetcode

Folders and files

Name		Name	Last commit message	Last commit date
Latest commit History 527 Commits
.settings		.settings
0020-valid-parentheses		0020-valid-parentheses
1-two-sum		1-two-sum
100-same-tree		100-same-tree
102-binary-tree-level-order-traversal		102-binary-tree-level-order-traversal
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
1046-last-stone-weight		1046-last-stone-weight
108-convert-sorted-array-to-binary-search-tree		108-convert-sorted-array-to-binary-search-tree
109-convert-sorted-list-to-binary-search-tree		109-convert-sorted-list-to-binary-search-tree
11-container-with-most-water		11-container-with-most-water
110-balanced-binary-tree		110-balanced-binary-tree
1143-longest-common-subsequence		1143-longest-common-subsequence
118-pascals-triangle		118-pascals-triangle
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
125-valid-palindrome		125-valid-palindrome
128-longest-consecutive-sequence		128-longest-consecutive-sequence
131-palindrome-partitioning		131-palindrome-partitioning
133-clone-graph		133-clone-graph
136-single-number		136-single-number
139-word-break		139-word-break
141-linked-list-cycle		141-linked-list-cycle
142-linked-list-cycle-ii		142-linked-list-cycle-ii
1448-count-good-nodes-in-binary-tree		1448-count-good-nodes-in-binary-tree
1469-find-all-the-lonely-nodes		1469-find-all-the-lonely-nodes
1480-running-sum-of-1d-array		1480-running-sum-of-1d-array
152-maximum-product-subarray		152-maximum-product-subarray
167-two-sum-ii-input-array-is-sorted		167-two-sum-ii-input-array-is-sorted
169-majority-element		169-majority-element
17-letter-combinations-of-a-phone-number		17-letter-combinations-of-a-phone-number
189-rotate-array		189-rotate-array
198-house-robber		198-house-robber
199-binary-tree-right-side-view		199-binary-tree-right-side-view
1991-find-the-middle-index-in-array		1991-find-the-middle-index-in-array
20-valid-parentheses		20-valid-parentheses
200-number-of-islands		200-number-of-islands
205-isomorphic-strings		205-isomorphic-strings
206-reverse-linked-list		206-reverse-linked-list
207-course-schedule		207-course-schedule
21-merge-two-sorted-lists		21-merge-two-sorted-lists
210-course-schedule-ii		210-course-schedule-ii
213-house-robber-ii		213-house-robber-ii
215-kth-largest-element-in-an-array		215-kth-largest-element-in-an-array
217-contains-duplicate		217-contains-duplicate
22-generate-parentheses		22-generate-parentheses
226-invert-binary-tree		226-invert-binary-tree
23-merge-k-sorted-lists		23-merge-k-sorted-lists
230-kth-smallest-element-in-a-bst		230-kth-smallest-element-in-a-bst
235-lowest-common-ancestor-of-a-binary-search-tree		235-lowest-common-ancestor-of-a-binary-search-tree
238-product-of-array-except-self		238-product-of-array-except-self
242-valid-anagram		242-valid-anagram
25-reverse-nodes-in-k-group		25-reverse-nodes-in-k-group
26-remove-duplicates-from-sorted-array		26-remove-duplicates-from-sorted-array
268-missing-number		268-missing-number
278-first-bad-version		278-first-bad-version
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
322-coin-change		322-coin-change
33-search-in-rotated-sorted-array		33-search-in-rotated-sorted-array
344-reverse-string		344-reverse-string
347-top-k-frequent-elements		347-top-k-frequent-elements
35-search-insert-position		35-search-insert-position
359-logger-rate-limiter		359-logger-rate-limiter
37-sudoku-solver		37-sudoku-solver
392-is-subsequence		392-is-subsequence
40-combination-sum-ii		40-combination-sum-ii
404-sum-of-left-leaves		404-sum-of-left-leaves
409-longest-palindrome		409-longest-palindrome
417-pacific-atlantic-water-flow		417-pacific-atlantic-water-flow
424-longest-repeating-character-replacement		424-longest-repeating-character-replacement
426-convert-binary-search-tree-to-sorted-doubly-linked-list		426-convert-binary-search-tree-to-sorted-doubly-linked-list
46-permutations		46-permutations
489-robot-room-cleaner		489-robot-room-cleaner
49-group-anagrams		49-group-anagrams
5-longest-palindromic-substring		5-longest-palindromic-substring
509-fibonacci-number		509-fibonacci-number
51-n-queens		51-n-queens
52-n-queens-ii		52-n-queens-ii
53-maximum-subarray		53-maximum-subarray
543-diameter-of-binary-tree		543-diameter-of-binary-tree
557-reverse-words-in-a-string-iii		557-reverse-words-in-a-string-iii
56-merge-intervals		56-merge-intervals
57-insert-interval		57-insert-interval
572-subtree-of-another-tree		572-subtree-of-another-tree
589-n-ary-tree-preorder-traversal		589-n-ary-tree-preorder-traversal
62-unique-paths		62-unique-paths
647-palindromic-substrings		647-palindromic-substrings
684-redundant-connection		684-redundant-connection
70-climbing-stairs		70-climbing-stairs
702-search-in-a-sorted-array-of-unknown-size		702-search-in-a-sorted-array-of-unknown-size
703-kth-largest-element-in-a-stream		703-kth-largest-element-in-a-stream
704-binary-search		704-binary-search
724-find-pivot-index		724-find-pivot-index
733-flood-fill		733-flood-fill
74-search-a-2d-matrix		74-search-a-2d-matrix
746-min-cost-climbing-stairs		746-min-cost-climbing-stairs
76-minimum-window-substring		76-minimum-window-substring
77-combinations		77-combinations

Repository files navigation

Tree Problems

View

Left View
Right View
Top View
Bottom view

Traversal

Morris Order Traversal
Level Order Traversal
InOrder (Iterative, Recursive)
PreOrder (Iterative, Recursive)
PostOrder (Iterative, Recursive)

Traversal Advanced

Boundary Traversal
Diagonal Traversal
Vertical Order Traversal
Zigzag Order Traversal

Height Related

Find height of tree
Check if tree is balanced
Find Diameter of Tree

Path Sum

Max Path Sum

Transformation

Binary Tree to DLL
DLL to binary tree
Construct from binary tree from post-order and in order traversal

Serialization and Deserialization

Serialize and Deserialize the binary tree

Misc

Inorder Traversal
Preorder Traversal
Postorder Traversal
Binary Tree Level Order
Binary search tree to greater sum
Next right pointer in each node
Max path sum
Sum of distances in tree
right side view
Left View
Top View
Bottom View
Vertical order
Diagonal Traversal
Boundary Traversal
Construct from inorder and preorder
Construct from inorder and postorder
Inorder and level order
Kth smallest element of BST
clone a binary tree with random pointer
Delete node in bst
Binary tree coloring game
reverse level order
Max product splitted binary tree
Lowest common ancestor in BST
Lowest common ancestor
square root decomposition
Flatten binary tree to linked list
Convert a binary tree to circular doubly linked list
Conversion of sorted DLL to BST
Merge Two BST
Recover binary search tree
Longest zigzag path in binary tree
isBstPreorder
BST from Postorder
Construct from pre and post
Binary Tree Cameras
Distribute coins in a binary tree
inorder succesor
image multiplication
Univalue subtrees
Fenwick tree
Segment tree

Classic or interesting Problems

Skyline
Rat in a maze

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Leetcode like problems and solutions

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Java 100.0%

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iamitshri/leetcode

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Tree Problems

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Traversal

Traversal Advanced

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Serialization and Deserialization

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Classic or interesting Problems

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