leet-code

Collection of LeetCode questions to ace the coding interview!

To see the explaination in details you can also visit my youtube channel - https://www.youtube.com/channel/UCuvZ14Z63hCnYnCdoVD6OaA

If you have any better solution then what I have pasted then feel free to open a Pull Request with the screen shot of running time and cases passed

Name		Name	Last commit message	Last commit date
Latest commit History 386 Commits
1-two-sum		1-two-sum
100-same-tree		100-same-tree
101-symmetric-tree		101-symmetric-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
108-convert-sorted-array-to-binary-search-tree		108-convert-sorted-array-to-binary-search-tree
11-container-with-most-water		11-container-with-most-water
112-path-sum		112-path-sum
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
120-triangle		120-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
133-clone-graph		133-clone-graph
136-single-number		136-single-number
137-single-number-ii		137-single-number-ii
14-longest-common-prefix		14-longest-common-prefix
141-linked-list-cycle		141-linked-list-cycle
142-linked-list-cycle-ii		142-linked-list-cycle-ii
144-binary-tree-preorder-traversal		144-binary-tree-preorder-traversal
145-binary-tree-postorder-traversal		145-binary-tree-postorder-traversal
148-sort-list		148-sort-list
15-3sum		15-3sum
19-remove-nth-node-from-end-of-list		19-remove-nth-node-from-end-of-list
2-add-two-numbers		2-add-two-numbers
20-valid-parentheses		20-valid-parentheses
21-merge-two-sorted-lists		21-merge-two-sorted-lists
22-generate-parentheses		22-generate-parentheses
24-swap-nodes-in-pairs		24-swap-nodes-in-pairs
26-remove-duplicates-from-sorted-array		26-remove-duplicates-from-sorted-array
268-missing-number		268-missing-number
27-remove-element		27-remove-element
29-divide-two-integers		29-divide-two-integers
3-longest-substring-without-repeating-characters		3-longest-substring-without-repeating-characters
33-search-in-rotated-sorted-array		33-search-in-rotated-sorted-array
34-find-first-and-last-position-of-element-in-sorted-array		34-find-first-and-last-position-of-element-in-sorted-array
35-search-insert-position		35-search-insert-position
36-valid-sudoku		36-valid-sudoku
374-guess-number-higher-or-lower		374-guess-number-higher-or-lower
3sum		3sum
4-median-of-two-sorted-arrays		4-median-of-two-sorted-arrays
45-jump-game-ii		45-jump-game-ii
5-longest-palindromic-substring		5-longest-palindromic-substring
50-powx-n		50-powx-n
516-longest-palindromic-subsequence		516-longest-palindromic-subsequence
53-maximum-subarray		53-maximum-subarray
55-jump-game		55-jump-game
58-length-of-last-word		58-length-of-last-word
61-rotate-list		61-rotate-list
64-minimum-path-sum		64-minimum-path-sum
69-sqrtx		69-sqrtx
7-reverse-integer		7-reverse-integer
70-climbing-stairs		70-climbing-stairs
704-binary-search		704-binary-search
74-search-a-2d-matrix		74-search-a-2d-matrix
78-subsets		78-subsets
784-letter-case-permutation		784-letter-case-permutation
8-string-to-integer-atoi		8-string-to-integer-atoi
80-remove-duplicates-from-sorted-array-ii		80-remove-duplicates-from-sorted-array-ii
82-remove-duplicates-from-sorted-list-ii		82-remove-duplicates-from-sorted-list-ii
83-remove-duplicates-from-sorted-list		83-remove-duplicates-from-sorted-list
88-merge-sorted-array		88-merge-sorted-array
9-palindrome-number		9-palindrome-number
94-binary-tree-inorder-traversal		94-binary-tree-inorder-traversal
98-validate-binary-search-tree		98-validate-binary-search-tree
add-binary		add-binary
add-two-numbers		add-two-numbers
array-partition-i		array-partition-i
best-time-to-buy-and-sell-stock-ii		best-time-to-buy-and-sell-stock-ii
binary-tree-level-order-traversal		binary-tree-level-order-traversal
binary-tree-maximum-path-sum		binary-tree-maximum-path-sum
binary-tree-zigzag-level-order-traversal		binary-tree-zigzag-level-order-traversal
clone-graph		clone-graph
container-with-most-water		container-with-most-water
contains-duplicate-ii		contains-duplicate-ii
convert-sorted-array-to-binary-search-tree		convert-sorted-array-to-binary-search-tree
copy-list-with-random-pointer		copy-list-with-random-pointer
count-primes		count-primes
count-univalue-subtrees		count-univalue-subtrees
delete-node-in-a-linked-list		delete-node-in-a-linked-list
design-circular-queue		design-circular-queue
design-linked-list		design-linked-list
diagonal-traverse		diagonal-traverse
diameter-of-binary-tree		diameter-of-binary-tree
find-all-numbers-disappeared-in-an-array		find-all-numbers-disappeared-in-an-array
find-pivot-index		find-pivot-index
first-unique-character-in-a-string		first-unique-character-in-a-string
fizz-buzz		fizz-buzz
flatten-a-multilevel-doubly-linked-list		flatten-a-multilevel-doubly-linked-list
flood-fill		flood-fill
group-anagrams		group-anagrams
happy-number		happy-number
height-checker		height-checker
implement-strstr		implement-strstr
inorder-successor-in-bst		inorder-successor-in-bst
insert-delete-getrandom-o1		insert-delete-getrandom-o1
insert-into-a-binary-search-tree		insert-into-a-binary-search-tree

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