Leetcode Notes
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leetcode
array
001-two-sum
004-median-of-two-sorted-arrays
011-container-with-most-water
015-3sum
016-3sum-closest
018-4sum
026-remove-duplicates-from-sorted-array
027-remove-element
031-next-permutation
033-search-in-rotated-sorted-array
034-search-for-a-range
035-search-insert-position
039-combination-sum
040-combination-sum-ii
041-first-missing-positive
042-trapping-rain-water
045-jump-game-ii
048-rotate-image
053-maximum-subarray
054-spiral-matrix
055-jump-game
056-merge-intervals
057-insert-interval
059-spiral-matrix-ii
062-unique-paths
063-unique-paths-ii
064-minimum-path-sum
066-plus-one
073-set-matrix-zeroes
074-search-a-2d-matrix
075-sort-colors
078-remove-duplicates-from-sorted-array-ii
078-subsets
079-word-search
080-remove-duplicates-from-sorted-array-ii
081-search-in-rotated-sorted-array-ii
084-largest-rectangle-in-histogram
085-maximal-rectangle
088-merge-sorted-array
090-subsets-ii
105-construct-binary-tree-from-preorder-and-inorder-traversal
106-construct-binary-tree-from-inorder-and-postorder-traversal
118-pascals-triangle
119-pascals-triangle-ii
120-triangle
121-best-time-to-buy-and-sell-stock
122-best-time-to-buy-and-sell-stock-ii
123-best-time-to-buy-and-sell-stock-iii
126-word-ladder-ii
128-longest-consecutive-sequence
152-maximum-product-subarray
divide-and-conquer
169-majority-element
215-kth-largest-element-in-an-array
218-the-skyline-problem
241-different-ways-to-add-parentheses
282-expression-add-operators
hash-table
003-longest-substring-without-repeating-characters
030-substring-with-concatenation-of-all-words
036-valid-sudoku
037-sudoku-solver
049-group-anagrams
076-minimum-window-substring
094-binary-tree-inorder-traversal
136-single-number
138-copy-list-with-random-pointer
149-max-points-on-a-line
159-longest-substring-with-at-most-two-distinct-characters
166-fraction-to-recurring-decimal
170-two-sum-iii-data-structure-design
187-repeated-dna-sequences
202-happy-number
204-count-primes
205-isomorphic-strings
217-contains-duplicate
219-contains-duplicate-ii
242-valid-anagram
244-shortest-word-distance-ii
246-strobogrammatic-number
249-group-shifted-strings
266-palindrome-permutation
274-h-index
288-unique-word-abbreviation
290-word-pattern
299-bulls-and-cows
311-sparse-matrix-multiplication
314-binary-tree-vertical-order-traversal
325-maximum-size-subarray-sum-equals-k
336-palindrome-pairs
340-longest-substring-with-at-most-k-distinct-characters
347-top-k-frequent-elements
356-line-reflection
358-rearrange-string-k-distance-apart
359-logger-rate-limiter
380-insert-delete-getrandom-o1
381-insert-delete-getrandom-o1-duplicates-allowed
387-first-unique-character-in-a-string
389-find-the-difference
409-longest-palindrome
438-find-all-anagrams-in-a-string
447-number-of-boomerangs
linked-list
002-add-two-numbers
019-remove-nth-node-from-end-of-list
021-merge-two-sorted-lists
023-merge-k-sorted-lists
024-swap-nodes-in-pairs
025-reverse-nodes-in-k-group
061-rotate-list
082-remove-duplicates-from-sorted-list-ii
083-remove-duplicates-from-sorted-list
086-partition-list
092-reverse-linked-list-ii
109-convert-sorted-list-to-binary-search-tree
141-linked-list-cycle
142-linked-list-cycle-ii
143-reorder-list
147-insertion-sort-list
148-sort-list
160-intersection-of-two-linked-lists
203-remove-linked-list-elements
206-reverse-linked-list
234-palindrome-linked-list
237-delete-node-in-a-linked-list
328-odd-even-linked-list
369-plus-one-linked-list
379-design-phone-directory
445-add-two-numbers-ii
725-split-linked-list-in-parts
math
065-valid-number
296-best-meeting-point
313-super-ugly-number
396-rotate-function
007-reverse-integer
008-string-to-integer-atoi
009-palindrome-number
012-integer-to-roman
013-roman-to-integer
014-longest-common-prefix
029-divide-two-integers
043-multiply-strings
050-powx-n
060-permutation-sequence
067-add-binary
069-sqrtx
168-excel-sheet-column-title
171-excel-sheet-column-number
223-rectangle-area
224-basic-calculator
247-strobogrammatic-number-ii
248-strobogrammatic-number-iii
258-add-digits
263-ugly-number
264-ugly-number-ii
268-missing-number
273-integer-to-english-words
279-perfect-squares
319-bulb-switcher
326-power-of-three
335-self-crossing
343-integer-break
357-count-numbers-with-unique-digits
360-sort-transformed-array
365-water-and-jug-problem
367-valid-perfect-square
368-largest-divisible-subset
372-super-pow
397-integer-replacement
400-nth-digit
two-pointers
028-implement-strstr
125-valid-palindrome
167-two-sum-ii-input-array-is-sorted
209-minimum-size-subarray-sum
259-3sum-smaller
283-move-zeroes
287-find-the-duplicate-number
344-reverse-string
345-reverse-vowels-of-a-string
349-intersection-of-two-arrays
350-intersection-of-two-arrays-ii
487-max-consecutive-ones-ii
524-longest-word-in-dictionary-through-deleting
532-k-diff-pairs-in-an-array
567-permutation-in-string
632-smallest-range
713-subarray-product-less-than-k
723-candy-crush
763-partition-labels
string
005-longest-palindromic-substring
006-zigzag-conversion
010-regular-expression-matching
014-longest-common-prefix
017-letter-combinations-of-a-phone-number
020-valid-parentheses
022-generate-parentheses
032-longest-valid-parentheses
038-count-and-say
043-wildcard-matching
044-wildcard-matching
058-length-of-last-word
068-text-justification
071-simplify-path
072-edit-distance
087-scramble-string
091-decode-ways
093-restore-ip-addresses
097-interleaving-string
115-distinct-subsequences
151-reverse-words-in-a-string
157-read-n-characters-given-read4
158-read-n-characters-given-read4-ii-call-multiple-times
161-one-edit-distance
165-compare-version-numbers
186-reverse-words-in-a-string-ii
214-shortest-palindrome
227-basic-calculator-ii
271-encode-and-decode-strings
293-flip-game
344-reverse-string
345-reverse-vowels-of-a-string
383-ransom-note
binary-search
153-find-minimum-in-rotated-sorted-array
154-find-minimum-in-rotated-sorted-array-ii
162-find-peak-element
222-count-complete-tree-nodes
230-kth-smallest-element-in-a-bst
240-search-a-2d-matrix-ii
270-closest-binary-search-tree-value
275-h-index-ii
278-first-bad-version
300-longest-increasing-subsequence
302-smallest-rectangle-enclosing-black-pixels
349-intersection-of-two-arrays
350-intersection-of-two-arrays-ii
354-russian-doll-envelopes
363-max-sum-of-rectangle-no-larger-than-k
374-guess-number-higher-or-lower
378-kth-smallest-element-in-a-sorted-matrix
392-is-subsequence
410-split-array-largest-sum
436-find-right-interval
441-arranging-coins
454-4sum-ii
475-heaters
483-smallest-good-base
497-random-point-in-non-overlapping-rectangles
528-random-pick-with-weight
644-maximum-average-subarray-ii
658-find-k-closest-elements
668-kth-smallest-number-in-multiplication-table
702-search-in-a-sorted-array-of-unknown-size
704-binary-search
710-random-pick-with-blacklist
718-maximum-length-of-repeated-subarray
719-find-k-th-smallest-pair-distance
744-find-smallest-letter-greater-than-target
774-minimize-max-distance-to-gas-station
778-swim-in-rising-water
786-k-th-smallest-prime-fraction
793-preimage-size-of-factorial-zeroes-function
852-peak-index-in-a-mountain-array
862-shortest-subarray-with-sum-at-least-k
875-koko-eating-bananas
878-nth-magical-number
887-super-egg-drop
dynamic-programing
174-dungeon-game
bit-manipulation
260-single-number-iii
137-single-number-ii
other
euclidean-algorithm
rabin-karp-rolling-hash
summation-identities
template
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043-wildcard-matching
043-wildcard-matching
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