GitHub - TechEarth/leetcode-solutions: LeetCode Solutions💡in Python3🐍 and C++

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Name		Name	Last commit message	Last commit date
Latest commit History 4,814 Commits
Sorry, we had to truncate this directory to 1,000 files. 177 entries were omitted from the list.
.github/workflows		.github/workflows
0001-two-sum		0001-two-sum
0002-add-two-numbers		0002-add-two-numbers
0003-longest-substring-without-repeating-characters		0003-longest-substring-without-repeating-characters
0004-median-of-two-sorted-arrays		0004-median-of-two-sorted-arrays
0005-longest-palindromic-substring		0005-longest-palindromic-substring
0006-zigzag-conversion		0006-zigzag-conversion
0010-regular-expression-matching		0010-regular-expression-matching
0012-integer-to-roman		0012-integer-to-roman
0013-roman-to-integer		0013-roman-to-integer
0014-longest-common-prefix		0014-longest-common-prefix
0015-3sum		0015-3sum
0017-letter-combinations-of-a-phone-number		0017-letter-combinations-of-a-phone-number
0018-4sum		0018-4sum
0020-valid-parentheses		0020-valid-parentheses
0022-generate-parentheses		0022-generate-parentheses
0023-merge-k-sorted-lists		0023-merge-k-sorted-lists
0025-reverse-nodes-in-k-group		0025-reverse-nodes-in-k-group
0027-remove-element		0027-remove-element
0028-find-the-index-of-the-first-occurrence-in-a-string		0028-find-the-index-of-the-first-occurrence-in-a-string
0031-next-permutation		0031-next-permutation
0033-search-in-rotated-sorted-array		0033-search-in-rotated-sorted-array
0035-search-insert-position		0035-search-insert-position
0037-sudoku-solver		0037-sudoku-solver
0039-combination-sum		0039-combination-sum
0040-combination-sum-ii		0040-combination-sum-ii
0042-trapping-rain-water		0042-trapping-rain-water
0043-multiply-strings		0043-multiply-strings
0044-wildcard-matching		0044-wildcard-matching
0045-jump-game-ii		0045-jump-game-ii
0046-permutations		0046-permutations
0050-powx-n		0050-powx-n
0051-n-queens		0051-n-queens
0052-n-queens-ii		0052-n-queens-ii
0053-maximum-subarray		0053-maximum-subarray
0056-merge-intervals		0056-merge-intervals
0057-insert-interval		0057-insert-interval
0060-permutation-sequence		0060-permutation-sequence
0062-unique-paths		0062-unique-paths
0064-minimum-path-sum		0064-minimum-path-sum
0067-add-binary		0067-add-binary
0069-sqrtx		0069-sqrtx
0070-climbing-stairs		0070-climbing-stairs
0072-edit-distance		0072-edit-distance
0075-sort-colors		0075-sort-colors
0076-minimum-window-substring		0076-minimum-window-substring
0084-largest-rectangle-in-histogram		0084-largest-rectangle-in-histogram
0085-maximal-rectangle		0085-maximal-rectangle
0086-partition-list		0086-partition-list
0087-scramble-string		0087-scramble-string
0088-merge-sorted-array		0088-merge-sorted-array
0090-subsets-ii		0090-subsets-ii
0091-decode-ways		0091-decode-ways
0093-restore-ip-addresses		0093-restore-ip-addresses
0094-binary-tree-inorder-traversal		0094-binary-tree-inorder-traversal
0096-unique-binary-search-trees		0096-unique-binary-search-trees
0098-validate-binary-search-tree		0098-validate-binary-search-tree
0100-same-tree		0100-same-tree
0101-symmetric-tree		0101-symmetric-tree
0102-binary-tree-level-order-traversal		0102-binary-tree-level-order-traversal
0103-binary-tree-zigzag-level-order-traversal		0103-binary-tree-zigzag-level-order-traversal
0105-construct-binary-tree-from-preorder-and-inorder-traversal		0105-construct-binary-tree-from-preorder-and-inorder-traversal
0106-construct-binary-tree-from-inorder-and-postorder-traversal		0106-construct-binary-tree-from-inorder-and-postorder-traversal
0109-convert-sorted-list-to-binary-search-tree		0109-convert-sorted-list-to-binary-search-tree
0110-balanced-binary-tree		0110-balanced-binary-tree
0114-flatten-binary-tree-to-linked-list		0114-flatten-binary-tree-to-linked-list
0115-distinct-subsequences		0115-distinct-subsequences
0117-populating-next-right-pointers-in-each-node-ii		0117-populating-next-right-pointers-in-each-node-ii
0118-pascals-triangle		0118-pascals-triangle
0121-best-time-to-buy-and-sell-stock		0121-best-time-to-buy-and-sell-stock
0122-best-time-to-buy-and-sell-stock-ii		0122-best-time-to-buy-and-sell-stock-ii
0123-best-time-to-buy-and-sell-stock-iii		0123-best-time-to-buy-and-sell-stock-iii
0124-binary-tree-maximum-path-sum		0124-binary-tree-maximum-path-sum
0127-word-ladder		0127-word-ladder
0129-sum-root-to-leaf-numbers		0129-sum-root-to-leaf-numbers
0130-surrounded-regions		0130-surrounded-regions
0133-clone-graph		0133-clone-graph
0134-gas-station		0134-gas-station
0135-candy		0135-candy
0136-single-number		0136-single-number
0137-single-number-ii		0137-single-number-ii
0138-copy-list-with-random-pointer		0138-copy-list-with-random-pointer
0139-word-break		0139-word-break
0140-word-break-ii		0140-word-break-ii
0141-linked-list-cycle		0141-linked-list-cycle
0142-linked-list-cycle-ii		0142-linked-list-cycle-ii
0144-binary-tree-preorder-traversal		0144-binary-tree-preorder-traversal
0145-binary-tree-postorder-traversal		0145-binary-tree-postorder-traversal
0146-lru-cache		0146-lru-cache
0147-insertion-sort-list		0147-insertion-sort-list
0149-max-points-on-a-line		0149-max-points-on-a-line
0151-reverse-words-in-a-string		0151-reverse-words-in-a-string
0154-find-minimum-in-rotated-sorted-array-ii		0154-find-minimum-in-rotated-sorted-array-ii
0155-min-stack		0155-min-stack
0160-intersection-of-two-linked-lists		0160-intersection-of-two-linked-lists
0165-compare-version-numbers		0165-compare-version-numbers
0166-fraction-to-recurring-decimal		0166-fraction-to-recurring-decimal
0169-majority-element		0169-majority-element
0171-excel-sheet-column-number		0171-excel-sheet-column-number
0174-dungeon-game		0174-dungeon-game
0175-combine-two-tables		0175-combine-two-tables
0176-second-highest-salary		0176-second-highest-salary
0182-duplicate-emails		0182-duplicate-emails
0183-customers-who-never-order		0183-customers-who-never-order
0188-best-time-to-buy-and-sell-stock-iv		0188-best-time-to-buy-and-sell-stock-iv
0189-rotate-array		0189-rotate-array
0190-reverse-bits		0190-reverse-bits
0191-number-of-1-bits		0191-number-of-1-bits
0196-delete-duplicate-emails		0196-delete-duplicate-emails
0197-rising-temperature		0197-rising-temperature
0198-house-robber		0198-house-robber
0199-binary-tree-right-side-view		0199-binary-tree-right-side-view
0200-number-of-islands		0200-number-of-islands
0201-bitwise-and-of-numbers-range		0201-bitwise-and-of-numbers-range
0206-reverse-linked-list		0206-reverse-linked-list
0208-implement-trie-prefix-tree		0208-implement-trie-prefix-tree
0209-minimum-size-subarray-sum		0209-minimum-size-subarray-sum
0211-design-add-and-search-words-data-structure		0211-design-add-and-search-words-data-structure
0212-word-search-ii		0212-word-search-ii
0213-house-robber-ii		0213-house-robber-ii
0218-the-skyline-problem		0218-the-skyline-problem
0222-count-complete-tree-nodes		0222-count-complete-tree-nodes
0223-rectangle-area		0223-rectangle-area
0224-basic-calculator		0224-basic-calculator
0227-basic-calculator-ii		0227-basic-calculator-ii
0229-majority-element-ii		0229-majority-element-ii
0234-palindrome-linked-list		0234-palindrome-linked-list
0236-lowest-common-ancestor-of-a-binary-tree		0236-lowest-common-ancestor-of-a-binary-tree
0237-delete-node-in-a-linked-list		0237-delete-node-in-a-linked-list
0238-product-of-array-except-self		0238-product-of-array-except-self
0239-sliding-window-maximum		0239-sliding-window-maximum
0241-different-ways-to-add-parentheses		0241-different-ways-to-add-parentheses
0263-ugly-number		0263-ugly-number
0264-ugly-number-ii		0264-ugly-number-ii
0274-h-index		0274-h-index
0275-h-index-ii		0275-h-index-ii
0278-first-bad-version		0278-first-bad-version
0279-perfect-squares		0279-perfect-squares
0290-word-pattern		0290-word-pattern
0295-find-median-from-data-stream		0295-find-median-from-data-stream
0300-longest-increasing-subsequence		0300-longest-increasing-subsequence
0306-additive-number		0306-additive-number
0309-best-time-to-buy-and-sell-stock-with-cooldown		0309-best-time-to-buy-and-sell-stock-with-cooldown
0312-burst-balloons		0312-burst-balloons
0313-super-ugly-number		0313-super-ugly-number
0318-maximum-product-of-word-lengths		0318-maximum-product-of-word-lengths
0322-coin-change		0322-coin-change
0324-wiggle-sort-ii		0324-wiggle-sort-ii
0329-longest-increasing-path-in-a-matrix		0329-longest-increasing-path-in-a-matrix
0331-verify-preorder-serialization-of-a-binary-tree		0331-verify-preorder-serialization-of-a-binary-tree
0332-reconstruct-itinerary		0332-reconstruct-itinerary
0337-house-robber-iii		0337-house-robber-iii
0343-integer-break		0343-integer-break
0347-top-k-frequent-elements		0347-top-k-frequent-elements
0354-russian-doll-envelopes		0354-russian-doll-envelopes
0355-design-twitter		0355-design-twitter
0357-count-numbers-with-unique-digits		0357-count-numbers-with-unique-digits
0363-max-sum-of-rectangle-no-larger-than-k		0363-max-sum-of-rectangle-no-larger-than-k
0367-valid-perfect-square		0367-valid-perfect-square
0368-largest-divisible-subset		0368-largest-divisible-subset
0373-find-k-pairs-with-smallest-sums		0373-find-k-pairs-with-smallest-sums
0374-guess-number-higher-or-lower		0374-guess-number-higher-or-lower
0375-guess-number-higher-or-lower-ii		0375-guess-number-higher-or-lower-ii
0376-wiggle-subsequence		0376-wiggle-subsequence
0377-combination-sum-iv		0377-combination-sum-iv
0378-kth-smallest-element-in-a-sorted-matrix		0378-kth-smallest-element-in-a-sorted-matrix
0380-insert-delete-getrandom-o1		0380-insert-delete-getrandom-o1
0382-linked-list-random-node		0382-linked-list-random-node
0384-shuffle-an-array		0384-shuffle-an-array
0386-lexicographical-numbers		0386-lexicographical-numbers
0391-perfect-rectangle		0391-perfect-rectangle
0392-is-subsequence		0392-is-subsequence
0399-evaluate-division		0399-evaluate-division
0406-queue-reconstruction-by-height		0406-queue-reconstruction-by-height
0407-trapping-rain-water-ii		0407-trapping-rain-water-ii
0413-arithmetic-slices		0413-arithmetic-slices
0415-add-strings		0415-add-strings
0416-partition-equal-subset-sum		0416-partition-equal-subset-sum
0417-pacific-atlantic-water-flow		0417-pacific-atlantic-water-flow
0424-longest-repeating-character-replacement		0424-longest-repeating-character-replacement
0429-n-ary-tree-level-order-traversal		0429-n-ary-tree-level-order-traversal
0430-flatten-a-multilevel-doubly-linked-list		0430-flatten-a-multilevel-doubly-linked-list
0435-non-overlapping-intervals		0435-non-overlapping-intervals
0436-find-right-interval		0436-find-right-interval
0441-arranging-coins		0441-arranging-coins
0443-string-compression		0443-string-compression
0445-add-two-numbers-ii		0445-add-two-numbers-ii
0447-number-of-boomerangs		0447-number-of-boomerangs
0451-sort-characters-by-frequency		0451-sort-characters-by-frequency
0452-minimum-number-of-arrows-to-burst-balloons		0452-minimum-number-of-arrows-to-burst-balloons
0456-132-pattern		0456-132-pattern
0461-hamming-distance		0461-hamming-distance
0462-minimum-moves-to-equal-array-elements-ii		0462-minimum-moves-to-equal-array-elements-ii
0467-unique-substrings-in-wraparound-string		0467-unique-substrings-in-wraparound-string
0473-matchsticks-to-square		0473-matchsticks-to-square
0474-ones-and-zeroes		0474-ones-and-zeroes
0475-heaters		0475-heaters
0477-total-hamming-distance		0477-total-hamming-distance
0482-license-key-formatting		0482-license-key-formatting
0485-max-consecutive-ones		0485-max-consecutive-ones
0493-reverse-pairs		0493-reverse-pairs
0494-target-sum		0494-target-sum
0496-next-greater-element-i		0496-next-greater-element-i
0506-relative-ranks		0506-relative-ranks
0511-game-play-analysis-i		0511-game-play-analysis-i
0513-find-bottom-left-tree-value		0513-find-bottom-left-tree-value
0516-longest-palindromic-subsequence		0516-longest-palindromic-subsequence
0518-coin-change-ii		0518-coin-change-ii
0523-continuous-subarray-sum		0523-continuous-subarray-sum
0524-longest-word-in-dictionary-through-deleting		0524-longest-word-in-dictionary-through-deleting
0526-beautiful-arrangement		0526-beautiful-arrangement
0530-minimum-absolute-difference-in-bst		0530-minimum-absolute-difference-in-bst
0535-encode-and-decode-tinyurl		0535-encode-and-decode-tinyurl
0540-single-element-in-a-sorted-array		0540-single-element-in-a-sorted-array
0541-reverse-string-ii		0541-reverse-string-ii
0543-diameter-of-binary-tree		0543-diameter-of-binary-tree
0554-brick-wall		0554-brick-wall
0560-subarray-sum-equals-k		0560-subarray-sum-equals-k
0565-array-nesting		0565-array-nesting
0567-permutation-in-string		0567-permutation-in-string
0583-delete-operation-for-two-strings		0583-delete-operation-for-two-strings
0584-find-customer-referee		0584-find-customer-referee
0586-customer-placing-the-largest-number-of-orders		0586-customer-placing-the-largest-number-of-orders
0595-big-countries		0595-big-countries
0605-can-place-flowers		0605-can-place-flowers
0606-construct-string-from-binary-tree		0606-construct-string-from-binary-tree
0607-sales-person		0607-sales-person
0608-tree-node		0608-tree-node
0621-task-scheduler		0621-task-scheduler
0622-design-circular-queue		0622-design-circular-queue
0627-swap-salary		0627-swap-salary
0646-maximum-length-of-pair-chain		0646-maximum-length-of-pair-chain
0647-palindromic-substrings		0647-palindromic-substrings
0658-find-k-closest-elements		0658-find-k-closest-elements
0662-maximum-width-of-binary-tree		0662-maximum-width-of-binary-tree
0667-beautiful-arrangement-ii		0667-beautiful-arrangement-ii
0669-trim-a-binary-search-tree		0669-trim-a-binary-search-tree
0673-number-of-longest-increasing-subsequence		0673-number-of-longest-increasing-subsequence
0677-map-sum-pairs		0677-map-sum-pairs
0678-valid-parenthesis-string		0678-valid-parenthesis-string
0682-baseball-game		0682-baseball-game
0684-redundant-connection		0684-redundant-connection
0686-repeated-string-match		0686-repeated-string-match
0687-longest-univalue-path		0687-longest-univalue-path
0688-knight-probability-in-chessboard		0688-knight-probability-in-chessboard
0689-maximum-sum-of-3-non-overlapping-subarrays		0689-maximum-sum-of-3-non-overlapping-subarrays
0691-stickers-to-spell-word		0691-stickers-to-spell-word
0696-count-binary-substrings		0696-count-binary-substrings
0698-partition-to-k-equal-sum-subsets		0698-partition-to-k-equal-sum-subsets
0704-binary-search		0704-binary-search
0713-subarray-product-less-than-k		0713-subarray-product-less-than-k
0714-best-time-to-buy-and-sell-stock-with-transaction-fee		0714-best-time-to-buy-and-sell-stock-with-transaction-fee
0720-longest-word-in-dictionary		0720-longest-word-in-dictionary
0729-my-calendar-i		0729-my-calendar-i
0731-my-calendar-ii		0731-my-calendar-ii
0740-delete-and-earn		0740-delete-and-earn
0743-network-delay-time		0743-network-delay-time
0746-min-cost-climbing-stairs		0746-min-cost-climbing-stairs
0752-open-the-lock		0752-open-the-lock
0753-open-the-lock		0753-open-the-lock
0767-reorganize-string		0767-reorganize-string
0768-partition-labels		0768-partition-labels
0778-swim-in-rising-water		0778-swim-in-rising-water
0781-rabbits-in-forest		0781-rabbits-in-forest
0783-search-in-a-binary-search-tree		0783-search-in-a-binary-search-tree
0787-cheapest-flights-within-k-stops		0787-cheapest-flights-within-k-stops
0790-domino-and-tromino-tiling		0790-domino-and-tromino-tiling
0797-all-paths-from-source-to-target		0797-all-paths-from-source-to-target
0801-minimum-swaps-to-make-sequences-increasing		0801-minimum-swaps-to-make-sequences-increasing
0802-find-eventual-safe-states		0802-find-eventual-safe-states
0812-largest-triangle-area		0812-largest-triangle-area
0813-largest-sum-of-averages		0813-largest-sum-of-averages
0820-find-eventual-safe-states		0820-find-eventual-safe-states
0823-binary-trees-with-factors		0823-binary-trees-with-factors
0844-backspace-string-compare		0844-backspace-string-compare
0846-hand-of-straights		0846-hand-of-straights
0853-car-fleet		0853-car-fleet
0866-rectangle-overlap		0866-rectangle-overlap
0875-koko-eating-bananas		0875-koko-eating-bananas
0876-middle-of-the-linked-list		0876-middle-of-the-linked-list
0877-stone-game		0877-stone-game
0881-boats-to-save-people		0881-boats-to-save-people
0889-construct-binary-tree-from-preorder-and-postorder-traversal		0889-construct-binary-tree-from-preorder-and-postorder-traversal
0894-all-possible-full-binary-trees		0894-all-possible-full-binary-trees
0895-maximum-frequency-stack		0895-maximum-frequency-stack
0908-middle-of-the-linked-list		0908-middle-of-the-linked-list
0912-sort-an-array		0912-sort-an-array
0937-online-stock-span		0937-online-stock-span
0953-verifying-an-alien-dictionary		0953-verifying-an-alien-dictionary
0958-check-completeness-of-a-binary-tree		0958-check-completeness-of-a-binary-tree
0974-subarray-sums-divisible-by-k		0974-subarray-sums-divisible-by-k
0979-distribute-coins-in-binary-tree		0979-distribute-coins-in-binary-tree
0981-time-based-key-value-store		0981-time-based-key-value-store
0983-minimum-cost-for-tickets		0983-minimum-cost-for-tickets
0987-vertical-order-traversal-of-a-binary-tree		0987-vertical-order-traversal-of-a-binary-tree
1-two-sum		1-two-sum
10-regular-expression-matching		10-regular-expression-matching
100-same-tree		100-same-tree
1004-max-consecutive-ones-iii		1004-max-consecutive-ones-iii
1005-maximize-sum-of-array-after-k-negations		1005-maximize-sum-of-array-after-k-negations
1008-construct-binary-search-tree-from-preorder-traversal		1008-construct-binary-search-tree-from-preorder-traversal
101-symmetric-tree		101-symmetric-tree
1011-capacity-to-ship-packages-within-d-days		1011-capacity-to-ship-packages-within-d-days
1014-best-sightseeing-pair		1014-best-sightseeing-pair
102-binary-tree-level-order-traversal		102-binary-tree-level-order-traversal
1027-longest-arithmetic-subsequence		1027-longest-arithmetic-subsequence
1029-two-city-scheduling		1029-two-city-scheduling
1029-vertical-order-traversal-of-a-binary-tree		1029-vertical-order-traversal-of-a-binary-tree
103-binary-tree-zigzag-level-order-traversal		103-binary-tree-zigzag-level-order-traversal
1031-maximum-sum-of-two-non-overlapping-subarrays		1031-maximum-sum-of-two-non-overlapping-subarrays
1035-uncrossed-lines		1035-uncrossed-lines
1038-binary-search-tree-to-greater-sum-tree		1038-binary-search-tree-to-greater-sum-tree
104-maximum-depth-of-binary-tree		104-maximum-depth-of-binary-tree
1041-robot-bounded-in-circle		1041-robot-bounded-in-circle
1046-last-stone-weight		1046-last-stone-weight
105-construct-binary-tree-from-preorder-and-inorder-traversal		105-construct-binary-tree-from-preorder-and-inorder-traversal
1050-actors-and-directors-who-cooperated-at-least-three-times		1050-actors-and-directors-who-cooperated-at-least-three-times
106-construct-binary-tree-from-inorder-and-postorder-traversal		106-construct-binary-tree-from-inorder-and-postorder-traversal
1071-greatest-common-divisor-of-strings		1071-greatest-common-divisor-of-strings
1079-letter-tile-possibilities		1079-letter-tile-possibilities
108-convert-sorted-array-to-binary-search-tree		108-convert-sorted-array-to-binary-search-tree
1084-sales-analysis-iii		1084-sales-analysis-iii
109-convert-sorted-list-to-binary-search-tree		109-convert-sorted-list-to-binary-search-tree
1092-shortest-common-supersequence		1092-shortest-common-supersequence
1094-car-pooling		1094-car-pooling
11-container-with-most-water		11-container-with-most-water
110-balanced-binary-tree		110-balanced-binary-tree
1106-parsing-a-boolean-expression		1106-parsing-a-boolean-expression
1114-print-in-order		1114-print-in-order
1117-as-far-from-land-as-possible		1117-as-far-from-land-as-possible
1119-robot-bounded-in-circle		1119-robot-bounded-in-circle
112-path-sum		112-path-sum
113-path-sum-ii		113-path-sum-ii
1130-minimum-cost-tree-from-leaf-values		1130-minimum-cost-tree-from-leaf-values
114-flatten-binary-tree-to-linked-list		114-flatten-binary-tree-to-linked-list
1141-user-activity-for-the-past-30-days-i		1141-user-activity-for-the-past-30-days-i
1143-longest-common-subsequence		1143-longest-common-subsequence
1146-greatest-common-divisor-of-strings		1146-greatest-common-divisor-of-strings
1148-article-views-i		1148-article-views-i
115-distinct-subsequences		115-distinct-subsequences
1158-market-analysis-i		1158-market-analysis-i
116-populating-next-right-pointers-in-each-node		116-populating-next-right-pointers-in-each-node
1162-as-far-from-land-as-possible		1162-as-far-from-land-as-possible
118-pascals-triangle		118-pascals-triangle
1189-maximum-number-of-balloons		1189-maximum-number-of-balloons
119-pascals-triangle-ii		119-pascals-triangle-ii
12-integer-to-roman		12-integer-to-roman
120-triangle		120-triangle
1200-minimum-absolute-difference		1200-minimum-absolute-difference
1207-unique-number-of-occurrences		1207-unique-number-of-occurrences
1208-get-equal-substrings-within-budget		1208-get-equal-substrings-within-budget
1209-remove-all-adjacent-duplicates-in-string-ii		1209-remove-all-adjacent-duplicates-in-string-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
1220-count-vowels-permutation		1220-count-vowels-permutation
1221-split-a-string-in-balanced-strings		1221-split-a-string-in-balanced-strings
123-best-time-to-buy-and-sell-stock-iii		123-best-time-to-buy-and-sell-stock-iii
1235-maximum-profit-in-job-scheduling		1235-maximum-profit-in-job-scheduling
1239-maximum-length-of-a-concatenated-string-with-unique-characters		1239-maximum-length-of-a-concatenated-string-with-unique-characters
124-binary-tree-maximum-path-sum		124-binary-tree-maximum-path-sum
126-word-ladder-ii		126-word-ladder-ii
1266-minimum-time-visiting-all-points		1266-minimum-time-visiting-all-points
1268-search-suggestions-system		1268-search-suggestions-system
127-word-ladder		127-word-ladder
128-longest-consecutive-sequence		128-longest-consecutive-sequence
1288-remove-covered-intervals		1288-remove-covered-intervals
129-sum-root-to-leaf-numbers		129-sum-root-to-leaf-numbers
1296-divide-array-in-sets-of-k-consecutive-numbers		1296-divide-array-in-sets-of-k-consecutive-numbers
13-roman-to-integer		13-roman-to-integer
130-surrounded-regions		130-surrounded-regions
1302-deepest-leaves-sum		1302-deepest-leaves-sum
1306-jump-game-iii		1306-jump-game-iii
1309-decrypt-string-from-alphabet-to-integer-mapping		1309-decrypt-string-from-alphabet-to-integer-mapping
131-palindrome-partitioning		131-palindrome-partitioning
1312-minimum-insertion-steps-to-make-a-string-palindrome		1312-minimum-insertion-steps-to-make-a-string-palindrome
1318-minimum-flips-to-make-a-or-b-equal-to-c		1318-minimum-flips-to-make-a-or-b-equal-to-c
1319-number-of-operations-to-make-network-connected		1319-number-of-operations-to-make-network-connected
1321-get-equal-substrings-within-budget		1321-get-equal-substrings-within-budget
1328-break-a-palindrome		1328-break-a-palindrome
133-clone-graph		133-clone-graph
1334-find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance		1334-find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance
134-gas-station		134-gas-station
1342-number-of-steps-to-reduce-a-number-to-zero		1342-number-of-steps-to-reduce-a-number-to-zero
1345-jump-game-iv		1345-jump-game-iv
1347-minimum-number-of-steps-to-make-two-strings-anagram		1347-minimum-number-of-steps-to-make-two-strings-anagram
135-candy		135-candy
136-single-number		136-single-number
1367-linked-list-in-binary-tree		1367-linked-list-in-binary-tree
137-single-number-ii		137-single-number-ii
1373-maximum-sum-bst-in-binary-tree		1373-maximum-sum-bst-in-binary-tree
138-copy-list-with-random-pointer		138-copy-list-with-random-pointer
1382-balance-a-binary-search-tree		1382-balance-a-binary-search-tree
1383-maximum-performance-of-a-team		1383-maximum-performance-of-a-team
139-word-break		139-word-break
1393-capital-gain-loss		1393-capital-gain-loss
1395-count-number-of-teams		1395-count-number-of-teams
14-longest-common-prefix		14-longest-common-prefix
140-word-break-ii		140-word-break-ii
1402-reducing-dishes		1402-reducing-dishes
1405-longest-happy-string		1405-longest-happy-string
1407-top-travellers		1407-top-travellers
141-linked-list-cycle		141-linked-list-cycle
142-linked-list-cycle-ii		142-linked-list-cycle-ii
1423-maximum-points-you-can-obtain-from-cards		1423-maximum-points-you-can-obtain-from-cards
143-reorder-list		143-reorder-list
144-binary-tree-preorder-traversal		144-binary-tree-preorder-traversal
1444-number-of-ways-of-cutting-a-pizza		1444-number-of-ways-of-cutting-a-pizza
1446-consecutive-characters		1446-consecutive-characters
1448-count-good-nodes-in-binary-tree		1448-count-good-nodes-in-binary-tree
146-lru-cache		146-lru-cache
1461-check-if-a-string-contains-all-binary-codes-of-size-k		1461-check-if-a-string-contains-all-binary-codes-of-size-k
1465-maximum-area-of-a-piece-of-cake-after-horizontal-and-vertical-cuts		1465-maximum-area-of-a-piece-of-cake-after-horizontal-and-vertical-cuts
1466-reorder-routes-to-make-all-paths-lead-to-the-city-zero		1466-reorder-routes-to-make-all-paths-lead-to-the-city-zero
147-insertion-sort-list		147-insertion-sort-list
1472-design-browser-history		1472-design-browser-history
148-sort-list		148-sort-list
1480-running-sum-of-1d-array		1480-running-sum-of-1d-array
1484-group-sold-products-by-the-date		1484-group-sold-products-by-the-date
1493-longest-subarray-of-1s-after-deleting-one-element		1493-longest-subarray-of-1s-after-deleting-one-element
1498-number-of-subsequences-that-satisfy-the-given-sum-condition		1498-number-of-subsequences-that-satisfy-the-given-sum-condition
15-3sum		15-3sum
1508-range-sum-of-sorted-subarray-sums		1508-range-sum-of-sorted-subarray-sums
1509-minimum-difference-between-largest-and-smallest-value-in-three-moves		1509-minimum-difference-between-largest-and-smallest-value-in-three-moves
151-reverse-words-in-a-string		151-reverse-words-in-a-string
152-maximum-product-subarray		152-maximum-product-subarray
1525-number-of-good-ways-to-split-a-string		1525-number-of-good-ways-to-split-a-string
1527-patients-with-a-condition		1527-patients-with-a-condition
153-find-minimum-in-rotated-sorted-array		153-find-minimum-in-rotated-sorted-array
1530-number-of-good-leaf-nodes-pairs		1530-number-of-good-leaf-nodes-pairs
1538-maximum-points-you-can-obtain-from-cards		1538-maximum-points-you-can-obtain-from-cards
1539-kth-missing-positive-number		1539-kth-missing-positive-number
1545-find-kth-bit-in-nth-binary-string		1545-find-kth-bit-in-nth-binary-string
155-min-stack		155-min-stack
1581-customer-who-visited-but-did-not-make-any-transactions		1581-customer-who-visited-but-did-not-make-any-transactions
1584-min-cost-to-connect-all-points		1584-min-cost-to-connect-all-points
1587-bank-account-summary-ii		1587-bank-account-summary-ii
16-3sum-closest		16-3sum-closest
160-intersection-of-two-linked-lists		160-intersection-of-two-linked-lists
1605-find-valid-matrix-given-row-and-column-sums		1605-find-valid-matrix-given-row-and-column-sums
1614-maximum-nesting-depth-of-the-parentheses		1614-maximum-nesting-depth-of-the-parentheses
162-find-peak-element		162-find-peak-element
1631-path-with-minimum-effort		1631-path-with-minimum-effort
165-compare-version-numbers		165-compare-version-numbers
166-fraction-to-recurring-decimal		166-fraction-to-recurring-decimal
1667-fix-names-in-a-table		1667-fix-names-in-a-table
1673-find-the-most-competitive-subsequence		1673-find-the-most-competitive-subsequence
1685-sum-of-absolute-differences-in-a-sorted-array		1685-sum-of-absolute-differences-in-a-sorted-array
169-majority-element		169-majority-element
1693-daily-leads-and-partners		1693-daily-leads-and-partners
1695-maximum-erasure-value		1695-maximum-erasure-value
17-letter-combinations-of-a-phone-number		17-letter-combinations-of-a-phone-number
1710-maximum-units-on-a-truck		1710-maximum-units-on-a-truck
172-factorial-trailing-zeroes		172-factorial-trailing-zeroes
1729-find-followers-count		1729-find-followers-count
173-binary-search-tree-iterator		173-binary-search-tree-iterator
1741-find-total-time-spent-by-each-employee		1741-find-total-time-spent-by-each-employee
1757-recyclable-and-low-fat-products		1757-recyclable-and-low-fat-products
179-largest-number		179-largest-number
1795-rearrange-products-table		1795-rearrange-products-table
18-4sum		18-4sum
1813-maximum-erasure-value		1813-maximum-erasure-value
1829-maximum-units-on-a-truck		1829-maximum-units-on-a-truck
1834-single-threaded-cpu		1834-single-threaded-cpu
1838-frequency-of-the-most-frequent-element		1838-frequency-of-the-most-frequent-element
1844-replace-all-digits-with-characters		1844-replace-all-digits-with-characters
1845-seat-reservation-manager		1845-seat-reservation-manager
1849-splitting-a-string-into-descending-consecutive-values		1849-splitting-a-string-into-descending-consecutive-values
1851-minimum-interval-to-include-each-query		1851-minimum-interval-to-include-each-query
1855-maximum-distance-between-a-pair-of-values		1855-maximum-distance-between-a-pair-of-values
1856-maximum-subarray-min-product		1856-maximum-subarray-min-product
1866-number-of-ways-to-rearrange-sticks-with-k-sticks-visible		1866-number-of-ways-to-rearrange-sticks-with-k-sticks-visible
187-repeated-dna-sequences		187-repeated-dna-sequences
1871-jump-game-vii		1871-jump-game-vii
1873-calculate-special-bonus		1873-calculate-special-bonus
188-best-time-to-buy-and-sell-stock-iv		188-best-time-to-buy-and-sell-stock-iv
1882-process-tasks-using-servers		1882-process-tasks-using-servers
1884-egg-drop-with-2-eggs-and-n-floors		1884-egg-drop-with-2-eggs-and-n-floors
1888-minimum-number-of-flips-to-make-the-binary-string-alternating		1888-minimum-number-of-flips-to-make-the-binary-string-alternating
189-rotate-array		189-rotate-array
1890-the-latest-login-in-2020		1890-the-latest-login-in-2020
1898-maximum-number-of-removable-characters		1898-maximum-number-of-removable-characters
19-remove-nth-node-from-end-of-list		19-remove-nth-node-from-end-of-list
190-reverse-bits		190-reverse-bits
1905-count-sub-islands		1905-count-sub-islands
1911-maximum-alternating-subsequence-sum		1911-maximum-alternating-subsequence-sum
1921-eliminate-maximum-number-of-monsters		1921-eliminate-maximum-number-of-monsters
1922-count-good-numbers		1922-count-good-numbers
1930-unique-length-3-palindromic-subsequences		1930-unique-length-3-palindromic-subsequences
1963-minimum-number-of-swaps-to-make-the-string-balanced		1963-minimum-number-of-swaps-to-make-the-string-balanced
1965-employees-with-missing-information		1965-employees-with-missing-information
1966-frequency-of-the-most-frequent-element		1966-frequency-of-the-most-frequent-element
1968-array-with-elements-not-equal-to-average-of-neighbors		1968-array-with-elements-not-equal-to-average-of-neighbors
1971-find-if-path-exists-in-graph		1971-find-if-path-exists-in-graph
1974-minimum-time-to-type-word-using-special-typewriter		1974-minimum-time-to-type-word-using-special-typewriter
1979-find-greatest-common-divisor-of-array		1979-find-greatest-common-divisor-of-array
198-house-robber		198-house-robber
1980-find-unique-binary-string		1980-find-unique-binary-string
1984-minimum-difference-between-highest-and-lowest-of-k-scores		1984-minimum-difference-between-highest-and-lowest-of-k-scores
1985-find-the-kth-largest-integer-in-the-array		1985-find-the-kth-largest-integer-in-the-array
199-binary-tree-right-side-view		199-binary-tree-right-side-view
2-add-two-numbers		2-add-two-numbers
20-valid-parentheses		20-valid-parentheses
200-number-of-islands		200-number-of-islands
2001-jump-game-vii		2001-jump-game-vii
2001-number-of-pairs-of-interchangeable-rectangles		2001-number-of-pairs-of-interchangeable-rectangles
2006-count-number-of-pairs-with-absolute-difference-k		2006-count-number-of-pairs-with-absolute-difference-k
2017-minimum-number-of-flips-to-make-the-binary-string-alternating		2017-minimum-number-of-flips-to-make-the-binary-string-alternating
202-happy-number		202-happy-number
2024-maximize-the-confusion-of-an-exam		2024-maximize-the-confusion-of-an-exam
2035-count-sub-islands		2035-count-sub-islands
2044-count-number-of-maximum-bitwise-or-subsets		2044-count-number-of-maximum-bitwise-or-subsets
206-reverse-linked-list		206-reverse-linked-list
207-course-schedule		207-course-schedule
208-implement-trie-prefix-tree		208-implement-trie-prefix-tree
209-minimum-size-subarray-sum		209-minimum-size-subarray-sum
2091-removing-minimum-and-maximum-from-array		2091-removing-minimum-and-maximum-from-array
21-merge-two-sorted-lists		21-merge-two-sorted-lists
210-course-schedule-ii		210-course-schedule-ii
211-design-add-and-search-words-data-structure		211-design-add-and-search-words-data-structure
213-house-robber-ii		213-house-robber-ii
214-shortest-palindrome		214-shortest-palindrome
215-kth-largest-element-in-an-array		215-kth-largest-element-in-an-array
2187-minimum-time-to-complete-trips		2187-minimum-time-to-complete-trips
22-generate-parentheses		22-generate-parentheses
221-maximal-square		221-maximal-square
222-count-complete-tree-nodes		222-count-complete-tree-nodes
224-basic-calculator		224-basic-calculator
2241-design-an-atm-machine		2241-design-an-atm-machine
225-implement-stack-using-queues		225-implement-stack-using-queues
226-invert-binary-tree		226-invert-binary-tree
227-basic-calculator-ii		227-basic-calculator-ii
2271-maximum-white-tiles-covered-by-a-carpet		2271-maximum-white-tiles-covered-by-a-carpet
228-summary-ranges		228-summary-ranges
229-majority-element-ii		229-majority-element-ii
2296-design-a-text-editor		2296-design-a-text-editor
23-merge-k-sorted-lists		23-merge-k-sorted-lists
230-kth-smallest-element-in-a-bst		230-kth-smallest-element-in-a-bst
2300-successful-pairs-of-spells-and-potions		2300-successful-pairs-of-spells-and-potions
2301-match-substring-after-replacement		2301-match-substring-after-replacement
2302-count-subarrays-with-score-less-than-k		2302-count-subarrays-with-score-less-than-k
2304-minimum-path-cost-in-a-grid		2304-minimum-path-cost-in-a-grid
2305-fair-distribution-of-cookies		2305-fair-distribution-of-cookies
2316-count-unreachable-pairs-of-nodes-in-an-undirected-graph		2316-count-unreachable-pairs-of-nodes-in-an-undirected-graph
232-implement-queue-using-stacks		232-implement-queue-using-stacks
2320-count-number-of-ways-to-place-houses		2320-count-number-of-ways-to-place-houses
2321-maximum-score-of-spliced-array		2321-maximum-score-of-spliced-array
234-palindrome-linked-list		234-palindrome-linked-list
2348-number-of-zero-filled-subarrays		2348-number-of-zero-filled-subarrays
235-lowest-common-ancestor-of-a-binary-search-tree		235-lowest-common-ancestor-of-a-binary-search-tree
236-lowest-common-ancestor-of-a-binary-tree		236-lowest-common-ancestor-of-a-binary-tree
2360-longest-cycle-in-a-graph		2360-longest-cycle-in-a-graph
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
239-sliding-window-maximum		239-sliding-window-maximum
2409-count-days-spent-together		2409-count-days-spent-together
241-different-ways-to-add-parentheses		241-different-ways-to-add-parentheses
2411-smallest-subarrays-with-maximum-bitwise-or		2411-smallest-subarrays-with-maximum-bitwise-or
242-valid-anagram		242-valid-anagram
2423-remove-letter-to-equalize-frequency		2423-remove-letter-to-equalize-frequency
2444-count-subarrays-with-fixed-bounds		2444-count-subarrays-with-fixed-bounds
2448-minimum-cost-to-make-array-equal		2448-minimum-cost-to-make-array-equal
2449-minimum-number-of-operations-to-make-arrays-similar		2449-minimum-number-of-operations-to-make-arrays-similar
2452-words-within-two-edits-of-dictionary		2452-words-within-two-edits-of-dictionary
2477-minimum-fuel-cost-to-report-to-the-capital		2477-minimum-fuel-cost-to-report-to-the-capital
2488-count-subarrays-with-median-k		2488-count-subarrays-with-median-k
2492-minimum-score-of-a-path-between-two-cities		2492-minimum-score-of-a-path-between-two-cities
2498-frog-jump-ii		2498-frog-jump-ii
25-reverse-nodes-in-k-group		25-reverse-nodes-in-k-group
2508-add-edges-to-make-degrees-of-all-nodes-even		2508-add-edges-to-make-degrees-of-all-nodes-even
2527-count-subarrays-with-fixed-bounds		2527-count-subarrays-with-fixed-bounds
2546-apply-bitwise-operations-to-make-strings-equal		2546-apply-bitwise-operations-to-make-strings-equal
2564-substring-xor-queries		2564-substring-xor-queries
2565-subsequence-with-the-minimum-score		2565-subsequence-with-the-minimum-score
2576-find-the-maximum-number-of-marked-indices		2576-find-the-maximum-number-of-marked-indices
258-add-digits		258-add-digits
2597-the-number-of-beautiful-subsets		2597-the-number-of-beautiful-subsets
26-remove-duplicates-from-sorted-array		26-remove-duplicates-from-sorted-array
2611-mice-and-cheese		2611-mice-and-cheese
279-perfect-squares		279-perfect-squares
28-implement-strstr		28-implement-strstr
287-find-the-duplicate-number		287-find-the-duplicate-number
295-find-median-from-data-stream		295-find-median-from-data-stream
297-serialize-and-deserialize-binary-tree		297-serialize-and-deserialize-binary-tree
3-longest-substring-without-repeating-characters		3-longest-substring-without-repeating-characters
300-longest-increasing-subsequence		300-longest-increasing-subsequence
309-best-time-to-buy-and-sell-stock-with-cooldown		309-best-time-to-buy-and-sell-stock-with-cooldown
31-next-permutation		31-next-permutation
316-remove-duplicate-letters		316-remove-duplicate-letters
322-coin-change		322-coin-change
329-longest-increasing-path-in-a-matrix		329-longest-increasing-path-in-a-matrix
33-search-in-rotated-sorted-array		33-search-in-rotated-sorted-array
337-house-robber-iii		337-house-robber-iii
338-counting-bits		338-counting-bits
34-find-first-and-last-position-of-element-in-sorted-array		34-find-first-and-last-position-of-element-in-sorted-array
343-integer-break		343-integer-break
344-reverse-string		344-reverse-string
347-top-k-frequent-elements		347-top-k-frequent-elements
349-intersection-of-two-arrays		349-intersection-of-two-arrays
350-intersection-of-two-arrays-ii		350-intersection-of-two-arrays-ii
36-valid-sudoku		36-valid-sudoku
37-sudoku-solver		37-sudoku-solver
371-sum-of-two-integers		371-sum-of-two-integers
378-kth-smallest-element-in-a-sorted-matrix		378-kth-smallest-element-in-a-sorted-matrix
38-count-and-say		38-count-and-say
386-lexicographical-numbers		386-lexicographical-numbers
387-first-unique-character-in-a-string		387-first-unique-character-in-a-string
389-find-the-difference		389-find-the-difference
39-combination-sum		39-combination-sum
392-is-subsequence		392-is-subsequence
394-decode-string		394-decode-string
397-integer-replacement		397-integer-replacement
4-median-of-two-sorted-arrays		4-median-of-two-sorted-arrays
40-combination-sum-ii		40-combination-sum-ii
402-remove-k-digits		402-remove-k-digits
404-sum-of-left-leaves		404-sum-of-left-leaves
406-queue-reconstruction-by-height		406-queue-reconstruction-by-height
409-longest-palindrome		409-longest-palindrome
416-partition-equal-subset-sum		416-partition-equal-subset-sum
42-trapping-rain-water		42-trapping-rain-water
421-maximum-xor-of-two-numbers-in-an-array		421-maximum-xor-of-two-numbers-in-an-array
43-multiply-strings		43-multiply-strings
430-flatten-a-multilevel-doubly-linked-list		430-flatten-a-multilevel-doubly-linked-list
435-non-overlapping-intervals		435-non-overlapping-intervals
437-path-sum-iii		437-path-sum-iii
438-find-all-anagrams-in-a-string		438-find-all-anagrams-in-a-string
44-wildcard-matching		44-wildcard-matching
448-find-all-numbers-disappeared-in-an-array		448-find-all-numbers-disappeared-in-an-array
45-jump-game-ii		45-jump-game-ii
452-minimum-number-of-arrows-to-burst-balloons		452-minimum-number-of-arrows-to-burst-balloons
46-permutations		46-permutations
461-hamming-distance		461-hamming-distance
47-permutations-ii		47-permutations-ii
474-ones-and-zeroes		474-ones-and-zeroes
477-total-hamming-distance		477-total-hamming-distance
48-rotate-image		48-rotate-image
485-max-consecutive-ones		485-max-consecutive-ones
493-reverse-pairs		493-reverse-pairs
494-target-sum		494-target-sum
496-next-greater-element-i		496-next-greater-element-i
5-longest-palindromic-substring		5-longest-palindromic-substring
50-powx-n		50-powx-n
51-n-queens		51-n-queens
516-longest-palindromic-subsequence		516-longest-palindromic-subsequence
518-coin-change-2		518-coin-change-2
523-continuous-subarray-sum		523-continuous-subarray-sum
525-contiguous-array		525-contiguous-array
526-beautiful-arrangement		526-beautiful-arrangement
53-maximum-subarray		53-maximum-subarray
532-k-diff-pairs-in-an-array		532-k-diff-pairs-in-an-array
535-encode-and-decode-tinyurl		535-encode-and-decode-tinyurl
538-convert-bst-to-greater-tree		538-convert-bst-to-greater-tree
54-spiral-matrix		54-spiral-matrix
540-single-element-in-a-sorted-array		540-single-element-in-a-sorted-array
542-01-matrix		542-01-matrix
543-diameter-of-binary-tree		543-diameter-of-binary-tree
547-number-of-provinces		547-number-of-provinces
55-jump-game		55-jump-game
551-student-attendance-record-i		551-student-attendance-record-i
556-next-greater-element-iii		556-next-greater-element-iii
559-maximum-depth-of-n-ary-tree		559-maximum-depth-of-n-ary-tree
56-merge-intervals		56-merge-intervals
560-subarray-sum-equals-k		560-subarray-sum-equals-k
57-insert-interval		57-insert-interval
581-shortest-unsorted-continuous-subarray		581-shortest-unsorted-continuous-subarray
583-delete-operation-for-two-strings		583-delete-operation-for-two-strings
589-n-ary-tree-preorder-traversal		589-n-ary-tree-preorder-traversal
59-spiral-matrix-ii		59-spiral-matrix-ii
60-permutation-sequence		60-permutation-sequence
61-rotate-list		61-rotate-list
611-valid-triangle-number		611-valid-triangle-number
617-merge-two-binary-trees		617-merge-two-binary-trees
62-unique-paths		62-unique-paths
628-maximum-product-of-three-numbers		628-maximum-product-of-three-numbers
63-unique-paths-ii		63-unique-paths-ii
632-smallest-range-covering-elements-from-k-lists		632-smallest-range-covering-elements-from-k-lists
64-minimum-path-sum		64-minimum-path-sum
646-maximum-length-of-pair-chain		646-maximum-length-of-pair-chain
647-palindromic-substrings		647-palindromic-substrings
652-find-duplicate-subtrees		652-find-duplicate-subtrees
653-two-sum-iv-input-is-a-bst		653-two-sum-iv-input-is-a-bst
654-maximum-binary-tree		654-maximum-binary-tree
66-plus-one		66-plus-one
662-maximum-width-of-binary-tree		662-maximum-width-of-binary-tree
664-strange-printer		664-strange-printer
.gitmodules		.gitmodules
001_Two_Sum.py		001_Two_Sum.py
002_Add_Two_Numbers.py		002_Add_Two_Numbers.py
003_Longest_Substring_Without_Repeating_Characters.py		003_Longest_Substring_Without_Repeating_Characters.py
004_Median_of_Two_Sorted_Arrays.py		004_Median_of_Two_Sorted_Arrays.py
005_Longest_Palindromic_Substring.py		005_Longest_Palindromic_Substring.py
006_ZigZag_Conversion.py		006_ZigZag_Conversion.py
007_Reverse_Integer.py		007_Reverse_Integer.py
008_String_to_Integer(atoi).py		008_String_to_Integer(atoi).py
009_Palindrome_Number.py		009_Palindrome_Number.py
010_Regular_Expression_Matching.py		010_Regular_Expression_Matching.py
011_Container_With_Most_Water.py		011_Container_With_Most_Water.py
012_Integer_to_Roman.py		012_Integer_to_Roman.py
013_Roman_to_Integer.py		013_Roman_to_Integer.py
014_Longest_Common_Prefix.py		014_Longest_Common_Prefix.py
015_3Sum.py		015_3Sum.py
016_3Sum_Closest.py		016_3Sum_Closest.py
017_Letter_Combinations_of_a_Phone_Number.py		017_Letter_Combinations_of_a_Phone_Number.py
018_4Sum.py		018_4Sum.py
019_Remove_Nth_Node_From_End_of_List.py		019_Remove_Nth_Node_From_End_of_List.py
020_Valid_Parentheses.py		020_Valid_Parentheses.py
021_Merge_Two_Sorted_Lists.py		021_Merge_Two_Sorted_Lists.py
022_Generate_Parentheses.py		022_Generate_Parentheses.py
023_Merge_k_Sorted_Lists.py		023_Merge_k_Sorted_Lists.py
024_Swap_Nodes_in_Pairs.py		024_Swap_Nodes_in_Pairs.py
025_Reverse_Nodes_i_ k-Group.py		025_Reverse_Nodes_i_ k-Group.py
026_Remove_Duplicates_from_Sorted_Array.py		026_Remove_Duplicates_from_Sorted_Array.py
027_Remove_Element.py		027_Remove_Element.py
028_Implement_strStr().py		028_Implement_strStr().py
029_Divide_Two_Integers.py		029_Divide_Two_Integers.py
030_Substring_with_Concatenation_of_All_Words.py		030_Substring_with_Concatenation_of_All_Words.py
031_Next_Permutation.py		031_Next_Permutation.py
032_Longest_Valid_Parentheses.py		032_Longest_Valid_Parentheses.py
033_Search_in_Rotated_Sorted_Array.py		033_Search_in_Rotated_Sorted_Array.py
034_Search_for_a_Range.py		034_Search_for_a_Range.py
035_Search_Insert_Position.py		035_Search_Insert_Position.py
036_Valid Sudoku.py		036_Valid Sudoku.py
037_Sudoku_Solver.py		037_Sudoku_Solver.py
038_Count_and_Say.py		038_Count_and_Say.py
039_Combination_Sum.py		039_Combination_Sum.py
040_Combination_Sum_II.py		040_Combination_Sum_II.py
041_First_Missing_Positive.py		041_First_Missing_Positive.py
042_Trapping_Rain_Water.py		042_Trapping_Rain_Water.py
043_Multiply_Strings.py		043_Multiply_Strings.py
044_Wildcard_Matching.py		044_Wildcard_Matching.py
045_Jump_Game_II.py		045_Jump_Game_II.py
046_Permutations.py		046_Permutations.py
047_Permutations_II.py		047_Permutations_II.py
048_Rotate_Image.py		048_Rotate_Image.py
049_Group_Anagrams.py		049_Group_Anagrams.py
050_Pow(x, n).py		050_Pow(x, n).py
051_N-Queens.py		051_N-Queens.py
052_N-Queens II.py		052_N-Queens II.py
053_Maximum_Subarray.py		053_Maximum_Subarray.py
054_Spiral_Matrix.py		054_Spiral_Matrix.py
055_Jump_Game.py		055_Jump_Game.py
056_Merge_Intervals.py		056_Merge_Intervals.py
057_Insert_Interval.py		057_Insert_Interval.py
058_Length_of_Last_Word.py		058_Length_of_Last_Word.py
059_Spiral_Matrix_II.py		059_Spiral_Matrix_II.py
060_Permutation_Sequence.py		060_Permutation_Sequence.py
061_Rotate_List.py		061_Rotate_List.py
062_Unique_Paths.py		062_Unique_Paths.py
063_Unique_Paths_II.py		063_Unique_Paths_II.py
064_Minimum_Path_Sum.py		064_Minimum_Path_Sum.py
065_Valid_Number.py		065_Valid_Number.py
066_Plus_One.py		066_Plus_One.py
067_Add_Binary.py		067_Add_Binary.py
068_Text_Justification.py		068_Text_Justification.py
069_Sqrt(x).py		069_Sqrt(x).py
070_Climbing_Stairs.py		070_Climbing_Stairs.py
071_Simplify_Path.py		071_Simplify_Path.py
072_Edit_Distance.py		072_Edit_Distance.py
073_Set_Matrix_Zeroes.py		073_Set_Matrix_Zeroes.py
074_Search_a_2D_Matrix.py		074_Search_a_2D_Matrix.py
075_Sort_Colors.py		075_Sort_Colors.py
076_Minimum_Window_Substring.py		076_Minimum_Window_Substring.py
077_Combinations.py		077_Combinations.py
078_Subsets.py		078_Subsets.py
079_Word_Search.py		079_Word_Search.py
080_Remove_Duplicates_from_Sorted_Array_II.py		080_Remove_Duplicates_from_Sorted_Array_II.py
081_Search_in_Rotated_Sorted_Array_II.py		081_Search_in_Rotated_Sorted_Array_II.py
083_Remove_Duplicates_from_Sorted_List.py		083_Remove_Duplicates_from_Sorted_List.py
084_Largest_Rectangle_in_Histogram.py		084_Largest_Rectangle_in_Histogram.py
085_Maximal_Rectangle.py		085_Maximal_Rectangle.py
086_Partition_List.py		086_Partition_List.py
087_Scramble_String.py		087_Scramble_String.py
088_Merge_Sorted_Array.py		088_Merge_Sorted_Array.py
089_Gray_Code.py		089_Gray_Code.py
090_Subsets_II.py		090_Subsets_II.py
091_Decode_Ways.py		091_Decode_Ways.py
092_Reverse_Linked_Lis_ II.py		092_Reverse_Linked_Lis_ II.py
093_Restore_IP_Addresses.py		093_Restore_IP_Addresses.py
094_Binary_Tree_Inorder_Traversal.py		094_Binary_Tree_Inorder_Traversal.py
095_Unique_Binary_Search_Trees_II.py		095_Unique_Binary_Search_Trees_II.py
096_Unique_Binary_Search_Trees.py		096_Unique_Binary_Search_Trees.py
097_Interleaving_String.py		097_Interleaving_String.py
098_Validate_Binary_Search_Tree.py		098_Validate_Binary_Search_Tree.py
099_Recover_Binary_Search_Tree.py		099_Recover_Binary_Search_Tree.py
100_Same_Tree.py		100_Same_Tree.py
101_Symmetric_Tree.py		101_Symmetric_Tree.py
102_Binary_Tree_Level_Order_Traversal.py		102_Binary_Tree_Level_Order_Traversal.py
103_Binary_Tree_Zigzag_Level_Order_Traversal.py		103_Binary_Tree_Zigzag_Level_Order_Traversal.py
104_Maximum_Depth_of_Binary_Tree.py		104_Maximum_Depth_of_Binary_Tree.py
105_Construct_Binary_Tree_from_Preorder_and_Inorder_Traversal.py		105_Construct_Binary_Tree_from_Preorder_and_Inorder_Traversal.py
1064_Fixed_Point.py		1064_Fixed_Point.py
106_Construct_Binary_Tree_from_Inorder_and_Postorder_Traversal.py		106_Construct_Binary_Tree_from_Inorder_and_Postorder_Traversal.py
107_Binary_Tree_Level_Order_Traversal_II.py		107_Binary_Tree_Level_Order_Traversal_II.py
1089_Duplicate_Zeros.py		1089_Duplicate_Zeros.py
108_Convert_Sorted_Array_to_Binary_Search_Tree.py		108_Convert_Sorted_Array_to_Binary_Search_Tree.py
109_Convert_Sorted_List_to_Binary_Search_Tree.py		109_Convert_Sorted_List_to_Binary_Search_Tree.py
1108_Defanging_an_IP_Address.py		1108_Defanging_an_IP_Address.py
110_Balanced_Binary_Tree.py		110_Balanced_Binary_Tree.py
111_Minimum_Depth_of_Binary_Tree.py		111_Minimum_Depth_of_Binary_Tree.py
112_Path_Sum.py		112_Path_Sum.py
113_Path_Sum_II.py		113_Path_Sum_II.py
114_Flatten_Binary_Tree_to_Linked_List.py		114_Flatten_Binary_Tree_to_Linked_List.py
115_Distinct_Subsequences.py		115_Distinct_Subsequences.py
116_Populating_Next_Right_Pointers_in_Each_Node.py		116_Populating_Next_Right_Pointers_in_Each_Node.py
117_Populating_Next_Right_Pointers_in_Each_Node_II.py		117_Populating_Next_Right_Pointers_in_Each_Node_II.py
118_Pascal's_Triangle.py		118_Pascal's_Triangle.py
119_Pascal's_Triangle_II.py		119_Pascal's_Triangle_II.py
120_Triangle.py		120_Triangle.py
121_Best_Time_to_Buy_and_Sell_Stock.py		121_Best_Time_to_Buy_and_Sell_Stock.py
122_Best_Time_to_Buy_and_Sell_Stock_II.py		122_Best_Time_to_Buy_and_Sell_Stock_II.py
123_Best_Time_to_Buy_and_Sell_Stock_III.py		123_Best_Time_to_Buy_and_Sell_Stock_III.py
124_Binary_Tree_Maximum_Path_Sum.py		124_Binary_Tree_Maximum_Path_Sum.py
125_Valid_Palindrome.py		125_Valid_Palindrome.py
1260_Shift_2D_Grid.py		1260_Shift_2D_Grid.py
126_Word_Ladder_II.py		126_Word_Ladder_II.py
127_Word_Ladder.py		127_Word_Ladder.py
128_Longest_Consecutive_Sequence.py		128_Longest_Consecutive_Sequence.py
1290_Convert_Binary_Number_in_a_Linked_List_to_Integer.py		1290_Convert_Binary_Number_in_a_Linked_List_to_Integer.py
129_Sum_Root_to_Leaf_Numbers.py		129_Sum_Root_to_Leaf_Numbers.py
1304_Find_N_Unique_Integers_Sum_up_to_Zero.py		1304_Find_N_Unique_Integers_Sum_up_to_Zero.py
130_Surrounded_Regions.py		130_Surrounded_Regions.py
1310_XOR_Queries_of_a_Subarray.py		1310_XOR_Queries_of_a_Subarray.py
131_Palindrome_Partitioning.py		131_Palindrome_Partitioning.py
1323_Maximum_69_Number.py		1323_Maximum_69_Number.py
132_Palindrome_Partitioning_II.py		132_Palindrome_Partitioning_II.py
1337_The_K_Weakest_Rows_in_a_Matrix.py		1337_The_K_Weakest_Rows_in_a_Matrix.py
133_Clone_Graph.py		133_Clone_Graph.py
1342_Number_of_Steps_to_Reduce_a_Number_to_Zero.py		1342_Number_of_Steps_to_Reduce_a_Number_to_Zero.py
134_Gas_Station.py		134_Gas_Station.py
135_Candy.py		135_Candy.py
1365_How_Many_Numbers_Are_Smaller_Than_the_Current_Number.py		1365_How_Many_Numbers_Are_Smaller_Than_the_Current_Number.py
136_Single_Number.py		136_Single_Number.py
137_Single_Number_II.py		137_Single_Number_II.py
138_Copy_List_with_Random_Pointer.py		138_Copy_List_with_Random_Pointer.py
139_Word_Break.py		139_Word_Break.py
140_Word_Break_II.py		140_Word_Break_II.py
141_Linked_List_Cycle.py		141_Linked_List_Cycle.py
142_Linked_List_Cycle_II.py		142_Linked_List_Cycle_II.py
143_Reorder_List.py		143_Reorder_List.py
144_Binary_Tree_Preorder_Traversal.py		144_Binary_Tree_Preorder_Traversal.py
145_Binary_Tree_Postorder_Traversal.py		145_Binary_Tree_Postorder_Traversal.py
146_LRU_Cache.py		146_LRU_Cache.py
147_Insertion_Sort_List.py		147_Insertion_Sort_List.py
1480_Running_Sum_of_1d_Array.py		1480_Running_Sum_of_1d_Array.py
149_Max_Points_on_a_Line.py		149_Max_Points_on_a_Line.py
150_Evaluate_Reverse_Polish_Notation.py		150_Evaluate_Reverse_Polish_Notation.py
151_Reverse_Words_in_a_String.py		151_Reverse_Words_in_a_String.py
152_Maximum_Product_Subarray.py		152_Maximum_Product_Subarray.py
153_Find_Minimum_in_Rotated_Sorted_Array.py		153_Find_Minimum_in_Rotated_Sorted_Array.py
154_Find_Minimum_in_Rotated_Sorted_Array_II.py		154_Find_Minimum_in_Rotated_Sorted_Array_II.py
155_Min_Stack.py		155_Min_Stack.py
156_Binary_Tree_Upside_Down.py		156_Binary_Tree_Upside_Down.py
157_Read_N_Characters_Given_Read4.py		157_Read_N_Characters_Given_Read4.py
158_Read_N_Characters_Given_Read4_II_Call_multiple_times.py		158_Read_N_Characters_Given_Read4_II_Call_multiple_times.py
1599_Maximum_Profit_of_Operating_a_Centennial_Wheel.py		1599_Maximum_Profit_of_Operating_a_Centennial_Wheel.py
159_Longest_Substring_with_At_Most_Two_Distinct_Characters.py		159_Longest_Substring_with_At_Most_Two_Distinct_Characters.py
160_Intersection_of_Two_Linked_Lists.py		160_Intersection_of_Two_Linked_Lists.py
161_One_Edit_Distance.py		161_One_Edit_Distance.py
162_Find_Peak_Element.py		162_Find_Peak_Element.py
163_Missing_Ranges.py		163_Missing_Ranges.py
165_Compare_Version_Numbers.py		165_Compare_Version_Numbers.py
166_Fraction_to_Recurring_Decimal.py		166_Fraction_to_Recurring_Decimal.py
167_Two_Sum_II_Input_array_is_sorted.py		167_Two_Sum_II_Input_array_is_sorted.py
168_Excel_Sheet_Column_Title.py		168_Excel_Sheet_Column_Title.py
170_Two_Sum_III-Data_structure_design.py		170_Two_Sum_III-Data_structure_design.py
179_Largest_Number.py		179_Largest_Number.py
186_Reverse_Words_in_a_String_II.py		186_Reverse_Words_in_a_String_II.py
191_Number_of_1_Bits.py		191_Number_of_1_Bits.py
198_House_Robber.py		198_House_Robber.py
200_Number_of_Islands.py		200_Number_of_Islands.py
202_Happy_Number.py		202_Happy_Number.py
203_Remove_Linked_List_Elements.py		203_Remove_Linked_List_Elements.py
204_Count_Primes.py		204_Count_Primes.py
205_Isomorphic_Strings.py		205_Isomorphic_Strings.py
206_Reverse_Linked_List.py		206_Reverse_Linked_List.py
208_Implement_Trie_(Prefix_Tree).py		208_Implement_Trie_(Prefix_Tree).py
213_House_Robber_II.py		213_House_Robber_II.py
215_Kth_Largest_Element_in_an_Array.py		215_Kth_Largest_Element_in_an_Array.py
216_Combination_Sum_III.py		216_Combination_Sum_III.py
217_Contains_Duplicate.py		217_Contains_Duplicate.py
219_Contains_Duplicate_II.py		219_Contains_Duplicate_II.py
220_Contains_Duplicate_III.py		220_Contains_Duplicate_III.py
221_Maximal_Square.py		221_Maximal_Square.py
223_Rectangle Area.py		223_Rectangle Area.py
225_Implement_Stack_using_Queues.py		225_Implement_Stack_using_Queues.py
226_Invert_Binary_Tree.py		226_Invert_Binary_Tree.py
228_Summary_Ranges.py		228_Summary_Ranges.py
229_Majority_Element_II.py		229_Majority_Element_II.py
231_Power_of_Two.py		231_Power_of_Two.py
232_Implement_Queue_using_Stacks.py		232_Implement_Queue_using_Stacks.py
234_Palindrome_Linked_List.py		234_Palindrome_Linked_List.py
235_Lowest_Common_Ancestor_of_a_Binary_Search_Tree.py		235_Lowest_Common_Ancestor_of_a_Binary_Search_Tree.py
236_Lowest_Common_Ancestor_of_a_Binary_Tree.py		236_Lowest_Common_Ancestor_of_a_Binary_Tree.py
237_Delete_Node_in_a_Linked_List.py		237_Delete_Node_in_a_Linked_List.py
238_Product_of_Array_Except_Self.py		238_Product_of_Array_Except_Self.py
242_Valid_Anagram.py		242_Valid_Anagram.py
243_Shortest_Word_Distance.py		243_Shortest_Word_Distance.py
246_Strobogrammatic_Number.py		246_Strobogrammatic_Number.py
249_Group_Shifted_Strings.py		249_Group_Shifted_Strings.py
252_Meeting_Rooms.py		252_Meeting_Rooms.py
253_Meeting_Rooms_II.py		253_Meeting_Rooms_II.py
257_Binary_Tree_Paths.py		257_Binary_Tree_Paths.py
258_Add_Digits.py		258_Add_Digits.py
259_3Sum_Smaller.py		259_3Sum_Smaller.py
263_Ugly_Number.py		263_Ugly_Number.py
264_Ugly_Number_II.py		264_Ugly_Number_II.py
266_Palindrome_Permutation.py		266_Palindrome_Permutation.py
267_Palindrome_Permutation_II.py		267_Palindrome_Permutation_II.py
268_Missing_Number.py		268_Missing_Number.py
270_Closest_Binary_Search_Tree_Value.py		270_Closest_Binary_Search_Tree_Value.py
273_Integer_to_English_Words.py		273_Integer_to_English_Words.py
274_H-Index.py		274_H-Index.py
276_Paint_Fence.py		276_Paint_Fence.py
278_First_Bad_Version.py		278_First_Bad_Version.py
280_Wiggle_Sort.py		280_Wiggle_Sort.py
283_Move Zeroes.py		283_Move Zeroes.py
286_Walls_and_Gates.py		286_Walls_and_Gates.py
288_Unique_Word_Abbreviation.py		288_Unique_Word_Abbreviation.py
290_Word_Pattern.py		290_Word_Pattern.py
292_Nim_Game.py		292_Nim_Game.py
293_Flip_Game.py		293_Flip_Game.py
294_Flip_Game_II.py		294_Flip_Game_II.py
296_Best_Meeting_Point.py		296_Best_Meeting_Point.py
298_Binary_Tree_Longest_Consecutive_Sequence.py		298_Binary_Tree_Longest_Consecutive_Sequence.py
299_Bulls_and_Cows.py		299_Bulls_and_Cows.py
303_Range_Sum_Query_Immutable.py		303_Range_Sum_Query_Immutable.py
304_Range_Sum_Query_2D_Immutable.py		304_Range_Sum_Query_2D_Immutable.py
305_Number_of_Islands_II.py		305_Number_of_Islands_II.py
307_Range_Sum_Query_Mutable.py		307_Range_Sum_Query_Mutable.py
322_Coin_Change.py		322_Coin_Change.py
326_Power_of_Three.py		326_Power_of_Three.py
328_Odd_Even_Linked_List.py		328_Odd_Even_Linked_List.py
336_Palindrome_Pairs.py		336_Palindrome_Pairs.py
337_House_Robber_III.py		337_House_Robber_III.py
338_Counting_Bits.py		338_Counting_Bits.py
339_Nested_List_Weight_Sum.py		339_Nested_List_Weight_Sum.py
340_Longest_Substring_with_At_Most_K_Distinct_Characters.py		340_Longest_Substring_with_At_Most_K_Distinct_Characters.py
342_Power_of_Four.py		342_Power_of_Four.py
344_Reverse_String.py		344_Reverse_String.py
345_Reverse_Vowels_of_a_String.py		345_Reverse_Vowels_of_a_String.py
346_Moving_Average_from_Data_Stream.py		346_Moving_Average_from_Data_Stream.py
347_Top_K_Frequent_Elements.py		347_Top_K_Frequent_Elements.py
349_Intersection_of_Two_Arrays.py		349_Intersection_of_Two_Arrays.py
350_Intersection_of_Two_Arrays_II.py		350_Intersection_of_Two_Arrays_II.py
351_Android_Unlock_Patterns.py		351_Android_Unlock_Patterns.py
359_Logger_Rate_Limiter.py		359_Logger_Rate_Limiter.py
366_Find_Leaves_of_Binary_Tree.py		366_Find_Leaves_of_Binary_Tree.py
367_Valid_Perfect_Square.py		367_Valid_Perfect_Square.py
368_Largest_Divisible_Subset.py		368_Largest_Divisible_Subset.py
369_Plus_One_Linked_List.py		369_Plus_One_Linked_List.py
370_Range_Addition.py		370_Range_Addition.py
371_Sum_of_Two_Integers.py		371_Sum_of_Two_Integers.py
372_Super_Pow.py		372_Super_Pow.py
373_Find_K_Pairs_with_Smallest_Sums.py		373_Find_K_Pairs_with_Smallest_Sums.py
374_Guess_Number_Higher_or_Lower.py		374_Guess_Number_Higher_or_Lower.py
375_Guess_Number_Higher_or_Lower_II.py		375_Guess_Number_Higher_or_Lower_II.py
383_Ransom_Note.py		383_Ransom_Note.py
384_Shuffle_an_Array.py		384_Shuffle_an_Array.py
387_First_Unique_Character_in_a_String.py		387_First_Unique_Character_in_a_String.py
388_Longest_Absolute_File_Path.py		388_Longest_Absolute_File_Path.py
389_Find_the_Difference.py		389_Find_the_Difference.py
400_Nth_Digit.py		400_Nth_Digit.py
401_Binary_Watch.py		401_Binary_Watch.py
404_Sum_of_Left_Leaves.py		404_Sum_of_Left_Leaves.py
405_Convert_a_Number_to_Hexadecimal.py		405_Convert_a_Number_to_Hexadecimal.py
408_Valid_Word_Abbreviation.py		408_Valid_Word_Abbreviation.py
409_Longest_Palindrome.py		409_Longest_Palindrome.py
412_Fizz_Buzz.py		412_Fizz_Buzz.py
414_Third_Maximum_Number.py		414_Third_Maximum_Number.py
415_Add_Strings.py		415_Add_Strings.py
416_Partition_Equal_Subset_Sum.py		416_Partition_Equal_Subset_Sum.py
421_Maximum_XOR_of_Two_Numbers_in_an_Array.py		421_Maximum_XOR_of_Two_Numbers_in_an_Array.py
422_Valid_Word_Square.py		422_Valid_Word_Square.py
434_Number_of_Segments_in_a_String.py		434_Number_of_Segments_in_a_String.py
437_Path_Sum_III.py		437_Path_Sum_III.py
438_Find_All_Anagrams_in_a_String.py		438_Find_All_Anagrams_in_a_String.py
443_String_Compression.py		443_String_Compression.py
448_Find_All_Numbers_Disappeared_in_an_Array.py		448_Find_All_Numbers_Disappeared_in_an_Array.py
453_Minimum_Moves_to_Equal_Array_Elements.py		453_Minimum_Moves_to_Equal_Array_Elements.py
457_Circular_Array_Loop.py		457_Circular_Array_Loop.py
458_Poor_Pigs.py		458_Poor_Pigs.py
461_Hamming_Distance.py		461_Hamming_Distance.py
463_Island_Perimeter.py		463_Island_Perimeter.py
475_Heaters.py		475_Heaters.py
479_Largest_Palindrome_Product.py		479_Largest_Palindrome_Product.py
482_License_Key_Formatting.py		482_License_Key_Formatting.py
485_Max_Consecutive_Ones.py		485_Max_Consecutive_Ones.py
509_Fibonacci_Number.py		509_Fibonacci_Number.py
538_Convert_BST_to_Greater_Tree.py		538_Convert_BST_to_Greater_Tree.py
541_Reverse_String_II.py		541_Reverse_String_II.py
543_Diameter_of_Binary_Tree.py		543_Diameter_of_Binary_Tree.py
547_Friend_Circles.py		547_Friend_Circles.py
557_Reverse_Words_in_a_String_III.py		557_Reverse_Words_in_a_String_III.py
560_Subarray_Sum_Equals_K.py		560_Subarray_Sum_Equals_K.py
572_Subtree_of_Another_Tree.py		572_Subtree_of_Another_Tree.py
581_Shortest_Unsorted_Continuous_Subarray.py		581_Shortest_Unsorted_Continuous_Subarray.py
605_Can_Place_Flowers.py		605_Can_Place_Flowers.py
617_Merge_Two_Binary_Trees.py		617_Merge_Two_Binary_Trees.py
628_Maximum_Product_of_Three_Numbers.py		628_Maximum_Product_of_Three_Numbers.py
654_Maximum_Binary_Tree.py		654_Maximum_Binary_Tree.py
665_Non-decreasing_Array.py		665_Non-decreasing_Array.py

Repository files navigation

class Solution(object):
    def licenseKeyFormatting(self, S, K):
        """
        :type S: str
        :type K: int
        :rtype: str
        """
        # https://leetcode.com/problems/license-key-formatting/discuss/96497/Python-solution
        S = S.upper().replace('-', '')
        ls = len(S)
        if ls % K == 0:
            pos = K
        else:
            pos = ls % K
        res = S[:pos]
        while pos < ls:
            res += '-' + S[pos:pos + K]
            pos += K
        return res