Name	Name	Last commit message	Last commit date
Latest commit History 391 Commits
0005-longest-palindromic-substring	0005-longest-palindromic-substring
0020-valid-parentheses	0020-valid-parentheses
0021-merge-two-sorted-lists	0021-merge-two-sorted-lists
0026-remove-duplicates-from-sorted-array	0026-remove-duplicates-from-sorted-array
0027-remove-element	0027-remove-element
0033-search-in-rotated-sorted-array	0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array	0034-find-first-and-last-position-of-element-in-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
0046-permutations	0046-permutations
0047-permutations-ii	0047-permutations-ii
0051-n-queens	0051-n-queens
0058-length-of-last-word	0058-length-of-last-word
0066-plus-one	0066-plus-one
0074-search-a-2d-matrix	0074-search-a-2d-matrix
0077-combinations	0077-combinations
0078-subsets	0078-subsets
0090-subsets-ii	0090-subsets-ii
0098-validate-binary-search-tree	0098-validate-binary-search-tree
0100-same-tree	0100-same-tree
0101-symmetric-tree	0101-symmetric-tree
0104-maximum-depth-of-binary-tree	0104-maximum-depth-of-binary-tree
0112-path-sum	0112-path-sum
0136-single-number	0136-single-number
0141-linked-list-cycle	0141-linked-list-cycle
0150-evaluate-reverse-polish-notation	0150-evaluate-reverse-polish-notation
0155-min-stack	0155-min-stack
0160-intersection-of-two-linked-lists	0160-intersection-of-two-linked-lists
0162-find-peak-element	0162-find-peak-element
0206-reverse-linked-list	0206-reverse-linked-list
0217-contains-duplicate	0217-contains-duplicate
0222-count-complete-tree-nodes	0222-count-complete-tree-nodes
0226-invert-binary-tree	0226-invert-binary-tree
0232-implement-queue-using-stacks	0232-implement-queue-using-stacks
0237-delete-node-in-a-linked-list	0237-delete-node-in-a-linked-list
0257-binary-tree-paths	0257-binary-tree-paths
0278-first-bad-version	0278-first-bad-version
0283-move-zeroes	0283-move-zeroes
0344-reverse-string	0344-reverse-string
0409-longest-palindrome	0409-longest-palindrome
0474-ones-and-zeroes	0474-ones-and-zeroes
0485-max-consecutive-ones	0485-max-consecutive-ones
0523-continuous-subarray-sum	0523-continuous-subarray-sum
0572-subtree-of-another-tree	0572-subtree-of-another-tree
0584-find-customer-referee	0584-find-customer-referee
0633-sum-of-square-numbers	0633-sum-of-square-numbers
0643-maximum-average-subarray-i	0643-maximum-average-subarray-i
0648-replace-words	0648-replace-words
0703-kth-largest-element-in-a-stream	0703-kth-largest-element-in-a-stream
0717-1-bit-and-2-bit-characters	0717-1-bit-and-2-bit-characters
0756-pyramid-transition-matrix	0756-pyramid-transition-matrix
0769-max-chunks-to-make-sorted	0769-max-chunks-to-make-sorted
0876-middle-of-the-linked-list	0876-middle-of-the-linked-list
0901-online-stock-span	0901-online-stock-span
0945-minimum-increment-to-make-array-unique	0945-minimum-increment-to-make-array-unique
0955-delete-columns-to-make-sorted-ii	0955-delete-columns-to-make-sorted-ii
0961-n-repeated-element-in-size-2n-array	0961-n-repeated-element-in-size-2n-array
0977-squares-of-a-sorted-array	0977-squares-of-a-sorted-array
1002-find-common-characters	1002-find-common-characters
1004-max-consecutive-ones-iii	1004-max-consecutive-ones-iii
1015-smallest-integer-divisible-by-k	1015-smallest-integer-divisible-by-k
1018-binary-prefix-divisible-by-5	1018-binary-prefix-divisible-by-5
1072-flip-columns-for-maximum-number-of-equal-rows	1072-flip-columns-for-maximum-number-of-equal-rows
1122-relative-sort-array	1122-relative-sort-array
1123-lowest-common-ancestor-of-deepest-leaves	1123-lowest-common-ancestor-of-deepest-leaves
1161-maximum-level-sum-of-a-binary-tree	1161-maximum-level-sum-of-a-binary-tree
1331-rank-transform-of-an-array	1331-rank-transform-of-an-array
1339-maximum-product-of-splitted-binary-tree	1339-maximum-product-of-splitted-binary-tree
1346-check-if-n-and-its-double-exist	1346-check-if-n-and-its-double-exist
1351-count-negative-numbers-in-a-sorted-matrix	1351-count-negative-numbers-in-a-sorted-matrix
1382-balance-a-binary-search-tree	1382-balance-a-binary-search-tree
1390-four-divisors	1390-four-divisors
1411-number-of-ways-to-paint-n-3-grid	1411-number-of-ways-to-paint-n-3-grid
1437-check-if-all-1s-are-at-least-length-k-places-away	1437-check-if-all-1s-are-at-least-length-k-places-away
1475-final-prices-with-a-special-discount-in-a-shop	1475-final-prices-with-a-special-discount-in-a-shop
1513-number-of-substrings-with-only-1s	1513-number-of-substrings-with-only-1s
1550-three-consecutive-odds	1550-three-consecutive-odds
1578-minimum-time-to-make-rope-colorful	1578-minimum-time-to-make-rope-colorful
1672-richest-customer-wealth	1672-richest-customer-wealth
1683-invalid-tweets	1683-invalid-tweets
1757-recyclable-and-low-fat-products	1757-recyclable-and-low-fat-products
1760-minimum-limit-of-balls-in-a-bag	1760-minimum-limit-of-balls-in-a-bag
1848-minimum-distance-to-the-target-element	1848-minimum-distance-to-the-target-element
1963-minimum-number-of-swaps-to-make-the-string-balanced	1963-minimum-number-of-swaps-to-make-the-string-balanced
1975-maximum-matrix-sum	1975-maximum-matrix-sum
2037-minimum-number-of-moves-to-seat-everyone	2037-minimum-number-of-moves-to-seat-everyone
2054-two-best-non-overlapping-events	2054-two-best-non-overlapping-events
2095-delete-the-middle-node-of-a-linked-list	2095-delete-the-middle-node-of-a-linked-list
2110-number-of-smooth-descent-periods-of-a-stock	2110-number-of-smooth-descent-periods-of-a-stock
2130-maximum-twin-sum-of-a-linked-list	2130-maximum-twin-sum-of-a-linked-list
2140-solving-questions-with-brainpower	2140-solving-questions-with-brainpower
2141-maximum-running-time-of-n-computers	2141-maximum-running-time-of-n-computers
2154-keep-multiplying-found-values-by-two	2154-keep-multiplying-found-values-by-two
2169-count-operations-to-obtain-zero	2169-count-operations-to-obtain-zero
2182-construct-string-with-repeat-limit	2182-construct-string-with-repeat-limit
2211-count-collisions-on-a-road	2211-count-collisions-on-a-road
2225-find-players-with-zero-or-one-losses	2225-find-players-with-zero-or-one-losses
2415-reverse-odd-levels-of-binary-tree	2415-reverse-odd-levels-of-binary-tree

Name

Last commit message

Last commit date

391 Commits

0005-longest-palindromic-substring

0020-valid-parentheses

0021-merge-two-sorted-lists

0026-remove-duplicates-from-sorted-array

0027-remove-element

0033-search-in-rotated-sorted-array

0034-find-first-and-last-position-of-element-in-sorted-array

0035-search-insert-position

0037-sudoku-solver

0039-combination-sum

0040-combination-sum-ii

0046-permutations

0047-permutations-ii

0051-n-queens

0058-length-of-last-word

0066-plus-one

0074-search-a-2d-matrix

0077-combinations

0078-subsets

0090-subsets-ii

0098-validate-binary-search-tree

0100-same-tree

0101-symmetric-tree

0104-maximum-depth-of-binary-tree

0112-path-sum

0136-single-number

0141-linked-list-cycle

0150-evaluate-reverse-polish-notation

0155-min-stack

0160-intersection-of-two-linked-lists

0162-find-peak-element

0206-reverse-linked-list

0217-contains-duplicate

0222-count-complete-tree-nodes

0226-invert-binary-tree

0232-implement-queue-using-stacks

0237-delete-node-in-a-linked-list

0257-binary-tree-paths

0278-first-bad-version

0283-move-zeroes

0344-reverse-string

0409-longest-palindrome

0474-ones-and-zeroes

0485-max-consecutive-ones

0523-continuous-subarray-sum

0572-subtree-of-another-tree

0584-find-customer-referee

0633-sum-of-square-numbers

0643-maximum-average-subarray-i

0648-replace-words

0703-kth-largest-element-in-a-stream

0717-1-bit-and-2-bit-characters

0756-pyramid-transition-matrix

0769-max-chunks-to-make-sorted

0876-middle-of-the-linked-list

0901-online-stock-span

0945-minimum-increment-to-make-array-unique

0955-delete-columns-to-make-sorted-ii

0961-n-repeated-element-in-size-2n-array

0977-squares-of-a-sorted-array

1002-find-common-characters

1004-max-consecutive-ones-iii

1015-smallest-integer-divisible-by-k

1018-binary-prefix-divisible-by-5

1072-flip-columns-for-maximum-number-of-equal-rows

1122-relative-sort-array

1123-lowest-common-ancestor-of-deepest-leaves

1161-maximum-level-sum-of-a-binary-tree

1331-rank-transform-of-an-array

1339-maximum-product-of-splitted-binary-tree

1346-check-if-n-and-its-double-exist

1351-count-negative-numbers-in-a-sorted-matrix

1382-balance-a-binary-search-tree

1390-four-divisors

1411-number-of-ways-to-paint-n-3-grid

1437-check-if-all-1s-are-at-least-length-k-places-away

1475-final-prices-with-a-special-discount-in-a-shop

1513-number-of-substrings-with-only-1s

1550-three-consecutive-odds

1578-minimum-time-to-make-rope-colorful

1672-richest-customer-wealth

1683-invalid-tweets

1757-recyclable-and-low-fat-products

1760-minimum-limit-of-balls-in-a-bag

1848-minimum-distance-to-the-target-element

1963-minimum-number-of-swaps-to-make-the-string-balanced

1975-maximum-matrix-sum

2037-minimum-number-of-moves-to-seat-everyone

2054-two-best-non-overlapping-events

2095-delete-the-middle-node-of-a-linked-list

2110-number-of-smooth-descent-periods-of-a-stock

2130-maximum-twin-sum-of-a-linked-list

2140-solving-questions-with-brainpower

2141-maximum-running-time-of-n-computers

2154-keep-multiplying-found-values-by-two

2169-count-operations-to-obtain-zero

2182-construct-string-with-repeat-limit

2211-count-collisions-on-a-road

2225-find-players-with-zero-or-one-losses

2415-reverse-odd-levels-of-binary-tree

leetcode

LeetCode Topics

Array

Problem Name	Difficulty
0027-remove-element	Easy
1848-minimum-distance-to-the-target-element	Easy
3655-xor-after-range-multiplication-queries-ii	Hard
3740-minimum-distance-between-three-equal-elements-i	Easy

Two Pointers

Problem Name	Difficulty
0027-remove-element	Easy

Divide and Conquer

Problem Name	Difficulty
3655-xor-after-range-multiplication-queries-ii	Hard

Hash Table

Problem Name	Difficulty
3740-minimum-distance-between-three-equal-elements-i	Easy

Math

Problem Name	Difficulty
3783-mirror-distance-of-an-integer	Easy

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