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Collection of LeetCode questions to ace the coding interview!

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ahrar01ahrar01
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History

495 Commits
0001-two-sum
0001-two-sum
Dec 30, 2023
0002-add-two-numbers
0002-add-two-numbers
Dec 2, 2023
0011-container-with-most-water
0011-container-with-most-water
Oct 10, 2023
0019-remove-nth-node-from-end-of-list
0019-remove-nth-node-from-end-of-list
Nov 30, 2023
0028-find-the-index-of-the-first-occurrence-in-a-string
0028-find-the-index-of-the-first-occurrence-in-a-string
Aug 7, 2023
0031-next-permutation
0031-next-permutation
Oct 2, 2023
0039-combination-sum
0039-combination-sum
Nov 2, 2023
0042-trapping-rain-water
0042-trapping-rain-water
Oct 11, 2023
0051-n-queens
0051-n-queens
Aug 7, 2023
0053-maximum-subarray
0053-maximum-subarray
Aug 31, 2023
0054-spiral-matrix
0054-spiral-matrix
Nov 29, 2023
0062-unique-paths
0062-unique-paths
Aug 16, 2023
0063-unique-paths-ii
0063-unique-paths-ii
Aug 16, 2023
0064-minimum-path-sum
0064-minimum-path-sum
Aug 17, 2023
0070-climbing-stairs
0070-climbing-stairs
Aug 8, 2023
0072-edit-distance
0072-edit-distance
Aug 23, 2023
0078-subsets
0078-subsets
Oct 17, 2023
0079-word-search
0079-word-search
Aug 12, 2023
0083-remove-duplicates-from-sorted-list
0083-remove-duplicates-from-sorted-list
Aug 7, 2023
0094-binary-tree-inorder-traversal
0094-binary-tree-inorder-traversal
Jul 23, 2023
0098-validate-binary-search-tree
0098-validate-binary-search-tree
Jul 27, 2023
0100-same-tree
0100-same-tree
Jul 29, 2023
0101-symmetric-tree
0101-symmetric-tree
Jul 29, 2023
0102-binary-tree-level-order-traversal
0102-binary-tree-level-order-traversal
Jul 24, 2023
0104-maximum-depth-of-binary-tree
0104-maximum-depth-of-binary-tree
Jul 22, 2023
0105-construct-binary-tree-from-preorder-and-inorder-traversal
0105-construct-binary-tree-from-preorder-and-inorder-traversal
Jul 24, 2023
0108-convert-sorted-array-to-binary-search-tree
0108-convert-sorted-array-to-binary-search-tree
Jul 25, 2023
0110-balanced-binary-tree
0110-balanced-binary-tree
Jul 22, 2023
0111-minimum-depth-of-binary-tree
0111-minimum-depth-of-binary-tree
Aug 7, 2023
0112-path-sum
0112-path-sum
Jul 25, 2023
0116-populating-next-right-pointers-in-each-node
0116-populating-next-right-pointers-in-each-node
Aug 1, 2023
0121-best-time-to-buy-and-sell-stock
0121-best-time-to-buy-and-sell-stock
Oct 8, 2023
0124-binary-tree-maximum-path-sum
0124-binary-tree-maximum-path-sum
Jul 28, 2023
0125-valid-palindrome
0125-valid-palindrome
Jan 5, 2024
0128-longest-consecutive-sequence
0128-longest-consecutive-sequence
Nov 26, 2023
0144-binary-tree-preorder-traversal
0144-binary-tree-preorder-traversal
Jul 24, 2023
0145-binary-tree-postorder-traversal
0145-binary-tree-postorder-traversal
Jul 24, 2023
0146-lru-cache
0146-lru-cache
Oct 30, 2023
0150-evaluate-reverse-polish-notation
0150-evaluate-reverse-polish-notation
Jan 30, 2024
0152-maximum-product-subarray
0152-maximum-product-subarray
Oct 19, 2023
0167-two-sum-ii-input-array-is-sorted
0167-two-sum-ii-input-array-is-sorted
Dec 30, 2023
0169-majority-element
0169-majority-element
Oct 5, 2023
0189-rotate-array
0189-rotate-array
Aug 29, 2023
0198-house-robber
0198-house-robber
Jan 21, 2024
0199-binary-tree-right-side-view
0199-binary-tree-right-side-view
Jul 29, 2023
0200-number-of-islands
0200-number-of-islands
Sep 11, 2023
0206-reverse-linked-list
0206-reverse-linked-list
Nov 19, 2023
0213-house-robber-ii
0213-house-robber-ii
Aug 13, 2023
0215-kth-largest-element-in-an-array
0215-kth-largest-element-in-an-array
Aug 5, 2023
0222-count-complete-tree-nodes
0222-count-complete-tree-nodes
Jul 22, 2023
0226-invert-binary-tree
0226-invert-binary-tree
Jul 25, 2023
0229-majority-element-ii
0229-majority-element-ii
Oct 5, 2023
0230-kth-smallest-element-in-a-bst
0230-kth-smallest-element-in-a-bst
Jul 29, 2023
0232-implement-queue-using-stacks
0232-implement-queue-using-stacks
Oct 10, 2023
0235-lowest-common-ancestor-of-a-binary-search-tree
0235-lowest-common-ancestor-of-a-binary-search-tree
Jul 29, 2023
0236-lowest-common-ancestor-of-a-binary-tree
0236-lowest-common-ancestor-of-a-binary-tree
Jul 29, 2023
0239-sliding-window-maximum
0239-sliding-window-maximum
Oct 15, 2023
0242-valid-anagram
0242-valid-anagram
Oct 8, 2023
0257-binary-tree-paths
0257-binary-tree-paths
Jul 25, 2023
0283-move-zeroes
0283-move-zeroes
Feb 23, 2023
0287-find-the-duplicate-number
0287-find-the-duplicate-number
Dec 30, 2023
0295-find-median-from-data-stream
0295-find-median-from-data-stream
Aug 6, 2023
0322-coin-change
0322-coin-change
Aug 20, 2023
0347-top-k-frequent-elements
0347-top-k-frequent-elements
Dec 31, 2023
0380-insert-delete-getrandom-o1
0380-insert-delete-getrandom-o1
Jan 16, 2024
0402-remove-k-digits
0402-remove-k-digits
Oct 27, 2023
0416-partition-equal-subset-sum
0416-partition-equal-subset-sum
Aug 18, 2023
0443-string-compression
0443-string-compression
Dec 28, 2023
0446-arithmetic-slices-ii-subsequence
0446-arithmetic-slices-ii-subsequence
Jan 7, 2024
0455-assign-cookies
0455-assign-cookies
Jan 1, 2024
0485-max-consecutive-ones
0485-max-consecutive-ones
Oct 30, 2023
0494-target-sum
0494-target-sum
Aug 21, 2023
0496-next-greater-element-i
0496-next-greater-element-i
Oct 13, 2023
0503-next-greater-element-ii
0503-next-greater-element-ii
Oct 13, 2023
0518-coin-change-ii
0518-coin-change-ii
Aug 20, 2023
0543-diameter-of-binary-tree
0543-diameter-of-binary-tree
Jul 29, 2023
0547-number-of-provinces
0547-number-of-provinces
Aug 29, 2023
0606-construct-string-from-binary-tree
0606-construct-string-from-binary-tree
Dec 8, 2023
0653-two-sum-iv-input-is-a-bst
0653-two-sum-iv-input-is-a-bst
Jul 25, 2023
0661-image-smoother
0661-image-smoother
Dec 19, 2023
0700-search-in-a-binary-search-tree
0700-search-in-a-binary-search-tree
Jul 23, 2023
0733-flood-fill
0733-flood-fill
Sep 9, 2023
0735-asteroid-collision
0735-asteroid-collision
Oct 24, 2023
0739-daily-temperatures
0739-daily-temperatures
Jan 31, 2024
0747-min-cost-climbing-stairs
0747-min-cost-climbing-stairs
Aug 14, 2023
0783-search-in-a-binary-search-tree
0783-search-in-a-binary-search-tree
Aug 1, 2023
0784-insert-into-a-binary-search-tree
0784-insert-into-a-binary-search-tree
Jul 29, 2023
0789-kth-largest-element-in-a-stream
0789-kth-largest-element-in-a-stream
Aug 6, 2023
0872-leaf-similar-trees
0872-leaf-similar-trees
Jan 9, 2024
0907-sum-of-subarray-minimums
0907-sum-of-subarray-minimums
Jan 20, 2024
0931-minimum-falling-path-sum
0931-minimum-falling-path-sum
Jan 19, 2024
0938-range-sum-of-bst
0938-range-sum-of-bst
Jul 23, 2023
0975-range-sum-of-bst
0975-range-sum-of-bst
Jul 26, 2023
0add-two-integers
0add-two-integers
Mar 23, 2023
0div-idbig-omega-company-tagsdiv-idbig-omega-topbardiv-classcompanytagscontainer-styleoverflow-x-scroll-flex-wrap-nowrap-div-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divamazon-divdiv-classcompanytagscontainer-tagoccurence3-div-div-divdiv-classcompanytagscontainer-chevrondivsvg-version11-idicon-xmlnshttp-wwww3org-2000-svg-xmlns-xlinkhttp-wwww3org-1999-xlink-x0px-y0px-viewbox0-0-32-32-fill4087f1-xml-spacepreserve-stylewidth-20px-polygon-points16-22-6-12-74-106-16-192-246-106-26-12-polygonrect-id-x3c-transparent-rectangle-x3e-classst0-fillnone-width32-height32-rect-svg-div-div-div-div225-implement-stack-using-queues
0div-idbig-omega-company-tagsdiv-idbig-omega-topbardiv-classcompanytagscontainer-styleoverflow-x-scroll-flex-wrap-nowrap-div-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divamazon-divdiv-classcompanytagscontainer-tagoccurence3-div-div-divdiv-classcompanytagscontainer-chevrondivsvg-version11-idicon-xmlnshttp-wwww3org-2000-svg-xmlns-xlinkhttp-wwww3org-1999-xlink-x0px-y0px-viewbox0-0-32-32-fill4087f1-xml-spacepreserve-stylewidth-20px-polygon-points16-22-6-12-74-106-16-192-246-106-26-12-polygonrect-id-x3c-transparent-rectangle-x3e-classst0-fillnone-width32-height32-rect-svg-div-div-div-div225-implement-stack-using-queues
Sep 30, 2023
0div-idbig-omega-company-tagsdiv-idbig-omega-topbardiv-classcompanytagscontainer-styleoverflow-x-scroll-flex-wrap-nowrap-div-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divapple-divdiv-classcompanytagscontainer-tagoccurence4-div-divdiv-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divfacebook-divdiv-classcompanytagscontainer-tagoccurence2-div-divdiv-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divamazon-divdiv-classcompanytagscontainer-tagoccurence2-div-divdiv-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divsalesforce-divdiv-classcompanytagscontainer-tagoccurence2-div-div-divdiv-classcompanytagscontainer-chevrondivsvg-version11-idicon-xmlnshttp-wwww3org-2000-svg-xmlns-xlinkhttp-wwww3org-1999-xlink-x0px-y0px-viewbox0-0-32-32-fill4087f1-xml-spacepreserve-stylewidth-20px-polygon-points16-22-6-12-74-106-16-192-246-106-26-12-polygonrect-id-x3c-transparent-rectangle-x3e-classst0-fillnone-width32-height32-rect-svg-div-div-div-div316-remove-duplicate-letters
0div-idbig-omega-company-tagsdiv-idbig-omega-topbardiv-classcompanytagscontainer-styleoverflow-x-scroll-flex-wrap-nowrap-div-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divapple-divdiv-classcompanytagscontainer-tagoccurence4-div-divdiv-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divfacebook-divdiv-classcompanytagscontainer-tagoccurence2-div-divdiv-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divamazon-divdiv-classcompanytagscontainer-tagoccurence2-div-divdiv-classcompanytagscontainer-tag-stylebackground-color-rgba0-10-32-005-divsalesforce-divdiv-classcompanytagscontainer-tagoccurence2-div-div-divdiv-classcompanytagscontainer-chevrondivsvg-version11-idicon-xmlnshttp-wwww3org-2000-svg-xmlns-xlinkhttp-wwww3org-1999-xlink-x0px-y0px-viewbox0-0-32-32-fill4087f1-xml-spacepreserve-stylewidth-20px-polygon-points16-22-6-12-74-106-16-192-246-106-26-12-polygonrect-id-x3c-transparent-rectangle-x3e-classst0-fillnone-width32-height32-rect-svg-div-div-div-div316-remove-duplicate-letters
Sep 30, 2023
0div-idbig-omega-company-tagsdiv-idbig-omega-topbardiv-classcompanytagscontainer-styleoverflow-x-scroll-flex-wrap-nowrap-div-classcompanytagscontainer-tagno-companies-found-for-this-problem-div-divdiv-classcompanytagscontainer-chevrondivsvg-version11-idicon-xmlnshttp-wwww3org-2000-svg-xmlns-xlinkhttp-wwww3org-1999-xlink-x0px-y0px-viewbox0-0-32-32-fill4087f1-xml-spacepreserve-stylewidth-20px-polygon-points16-22-6-12-74-106-16-192-246-106-26-12-polygonrect-id-x3c-transparent-rectangle-x3e-classst0-fillnone-width32-height32-rect-svg-div-div-div-div1081-smallest-subsequence-of-distinct-characters
0div-idbig-omega-company-tagsdiv-idbig-omega-topbardiv-classcompanytagscontainer-styleoverflow-x-scroll-flex-wrap-nowrap-div-classcompanytagscontainer-tagno-companies-found-for-this-problem-div-divdiv-classcompanytagscontainer-chevrondivsvg-version11-idicon-xmlnshttp-wwww3org-2000-svg-xmlns-xlinkhttp-wwww3org-1999-xlink-x0px-y0px-viewbox0-0-32-32-fill4087f1-xml-spacepreserve-stylewidth-20px-polygon-points16-22-6-12-74-106-16-192-246-106-26-12-polygonrect-id-x3c-transparent-rectangle-x3e-classst0-fillnone-width32-height32-rect-svg-div-div-div-div1081-smallest-subsequence-of-distinct-characters
Sep 30, 2023
0kth-missing-positive-number
0kth-missing-positive-number
Mar 21, 2023
0odd-even-linked-list
0odd-even-linked-list
Apr 15, 2023
1013-fibonacci-number
1013-fibonacci-number
Aug 8, 2023
1035-cousins-in-binary-tree
1035-cousins-in-binary-tree
Jul 29, 2023
1036-rotting-oranges
1036-rotting-oranges
Sep 9, 2023
1114-binary-search-tree-to-greater-sum-tree
1114-binary-search-tree-to-greater-sum-tree
Jul 29, 2023
1160-find-words-that-can-be-formed-by-characters
1160-find-words-that-can-be-formed-by-characters
Dec 2, 2023
1207-unique-number-of-occurrences
1207-unique-number-of-occurrences
Jan 17, 2024
1235-maximum-profit-in-job-scheduling
1235-maximum-profit-in-job-scheduling
Jan 6, 2024
1236-n-th-tribonacci-number
1236-n-th-tribonacci-number
Aug 19, 2023
1250-longest-common-subsequence
1250-longest-common-subsequence
Aug 22, 2023
1266-minimum-time-visiting-all-points
1266-minimum-time-visiting-all-points
Dec 3, 2023
1325-delete-leaves-with-a-given-value
1325-delete-leaves-with-a-given-value
Jul 23, 2023
1335-minimum-difficulty-of-a-job-schedule
1335-minimum-difficulty-of-a-job-schedule
Dec 29, 2023
1347-minimum-number-of-steps-to-make-two-strings-anagram
1347-minimum-number-of-steps-to-make-two-strings-anagram
Jan 13, 2024
1436-destination-city
1436-destination-city
Dec 15, 2023
1457-pseudo-palindromic-paths-in-a-binary-tree
1457-pseudo-palindromic-paths-in-a-binary-tree
Jan 24, 2024
1464-maximum-product-of-two-elements-in-an-array
1464-maximum-product-of-two-elements-in-an-array
Nov 11, 2023
1531-string-compression-ii
1531-string-compression-ii
Dec 28, 2023
1624-largest-substring-between-two-equal-characters
1624-largest-substring-between-two-equal-characters
Dec 31, 2023
1637-widest-vertical-area-between-two-points-containing-no-points
1637-widest-vertical-area-between-two-points-containing-no-points
Dec 21, 2023
1657-determine-if-two-strings-are-close
1657-determine-if-two-strings-are-close
Jan 14, 2024
1662-check-if-two-string-arrays-are-equivalent
1662-check-if-two-string-arrays-are-equivalent
Dec 2, 2023
1685-sum-of-absolute-differences-in-a-sorted-array
1685-sum-of-absolute-differences-in-a-sorted-array
Nov 25, 2023
1688-count-of-matches-in-tournament
1688-count-of-matches-in-tournament
Mar 3, 2023
1704-determine-if-string-halves-are-alike
1704-determine-if-string-halves-are-alike
Jan 13, 2024
1749-maximum-absolute-sum-of-any-subarray
1749-maximum-absolute-sum-of-any-subarray
Oct 3, 2023
1897-redistribute-characters-to-make-all-strings-equal
1897-redistribute-characters-to-make-all-strings-equal
Dec 30, 2023
1903-largest-odd-number-in-string
1903-largest-odd-number-in-string
Nov 29, 2023
1913-maximum-product-difference-between-two-pairs
1913-maximum-product-difference-between-two-pairs
Dec 18, 2023
2095-delete-the-middle-node-of-a-linked-list
2095-delete-the-middle-node-of-a-linked-list
Nov 18, 2023
2125-number-of-laser-beams-in-a-bank
2125-number-of-laser-beams-in-a-bank
Jan 3, 2024
2149-rearrange-array-elements-by-sign
2149-rearrange-array-elements-by-sign
Nov 29, 2023
2195-time-needed-to-buy-tickets
2195-time-needed-to-buy-tickets
Aug 5, 2023
2225-find-players-with-zero-or-one-losses
2225-find-players-with-zero-or-one-losses
Jan 15, 2024
2264-largest-3-same-digit-number-in-string
2264-largest-3-same-digit-number-in-string
Dec 4, 2023
2385-amount-of-time-for-binary-tree-to-be-infected
2385-amount-of-time-for-binary-tree-to-be-infected
Jan 10, 2024
2460-apply-operations-to-an-array
2460-apply-operations-to-an-array
Oct 18, 2023
2482-difference-between-ones-and-zeros-in-row-and-column
2482-difference-between-ones-and-zeros-in-row-and-column
Dec 14, 2023
2610-convert-an-array-into-a-2d-array-with-conditions
2610-convert-an-array-into-a-2d-array-with-conditions
Jan 2, 2024
2706-buy-two-chocolates
2706-buy-two-chocolates
Dec 20, 2023
2870-minimum-number-of-operations-to-make-array-empty
2870-minimum-number-of-operations-to-make-array-empty
Jan 4, 2024
2951-find-the-peaks
2951-find-the-peaks
Dec 3, 2023
2952-minimum-number-of-coins-to-be-added
2952-minimum-number-of-coins-to-be-added
Dec 3, 2023
Arrays (Sum of array) - GFG
Arrays (Sum of array) - GFG
Mar 23, 2023
Palindromic Array - GFG
Palindromic Array - GFG
Mar 24, 2023
Print 1 To N Without Loop - GFG
Print 1 To N Without Loop - GFG
Mar 23, 2023
binary-search
binary-search
Apr 3, 2023
check-if-n-and-its-double-exist
check-if-n-and-its-double-exist
Mar 24, 2023
delete-node-in-a-linked-list
delete-node-in-a-linked-list
Mar 23, 2023
fibonacci-number
fibonacci-number
Mar 18, 2023
find-all-numbers-disappeared-in-an-array
find-all-numbers-disappeared-in-an-array
Mar 28, 2023
first-unique-character-in-a-string
first-unique-character-in-a-string
Mar 21, 2023
happy-number
happy-number
Apr 24, 2023
height-checker
height-checker
Mar 26, 2023
intersection-of-two-arrays
intersection-of-two-arrays
Apr 12, 2023
intersection-of-two-linked-lists
intersection-of-two-linked-lists
Apr 25, 2023
linked-list-cycle-ii
linked-list-cycle-ii
Mar 29, 2023
longest-substring-without-repeating-characters
longest-substring-without-repeating-characters
Apr 30, 2023
maximum-subarray
maximum-subarray
Apr 25, 2023
merge-two-sorted-lists
merge-two-sorted-lists
Mar 24, 2023
middle-of-the-linked-list
middle-of-the-linked-list
Apr 6, 2023
minimum-remove-to-make-valid-parentheses
minimum-remove-to-make-valid-parentheses
Mar 30, 2023
monotonic-array
monotonic-array
Apr 22, 2023
palindrome-linked-list
palindrome-linked-list
Mar 23, 2023
palindrome-number
palindrome-number
Mar 23, 2023
peak-index-in-a-mountain-array
peak-index-in-a-mountain-array
Apr 1, 2023
plus-one
plus-one
Mar 23, 2023
powx-n
powx-n
Apr 18, 2023
product-of-array-except-self
product-of-array-except-self
Apr 2, 2023
remove-duplicates-from-sorted-array
remove-duplicates-from-sorted-array
Mar 21, 2023
replace-elements-with-greatest-element-on-right-side
replace-elements-with-greatest-element-on-right-side
Mar 24, 2023
reverse-integer
reverse-integer
Mar 21, 2023
reverse-string
reverse-string
Mar 21, 2023
rotate-array
rotate-array
Mar 21, 2023
running-sum-of-1d-array
running-sum-of-1d-array
Mar 23, 2023
search-insert-position
search-insert-position
Apr 11, 2023
single-number
single-number
Feb 12, 2023
sort-array-by-parity
sort-array-by-parity
Mar 25, 2023
sort-colors
sort-colors
Apr 26, 2023
squares-of-a-sorted-array
squares-of-a-sorted-array
Mar 28, 2023
string-to-integer-atoi
string-to-integer-atoi
Mar 22, 2023
swap-nodes-in-pairs
swap-nodes-in-pairs
Apr 8, 2023
third-maximum-number
third-maximum-number
Mar 31, 2023
valid-anagram
valid-anagram
Apr 13, 2023
valid-mountain-array
valid-mountain-array
Mar 25, 2023
valid-palindrome
valid-palindrome
Mar 22, 2023
valid-parentheses
valid-parentheses
Mar 29, 2023
README.md
README.md
Mar 21, 2023

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Practice

Collection of LeetCode questions to ace the coding interview!

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Collection of LeetCode questions to ace the coding interview!

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