kaysss/leetcode-problem-set · Datasets at Hugging Face

acRate float64 9.28 95.3	difficulty stringclasses 3 values	frontendQuestionId int64 1 3.51k	isFavor bool 1 class	paidOnly bool 2 classes	title stringlengths 3 79	titleSlug stringlengths 3 79	topicTags stringlengths 2 153	hasSolution bool 2 classes	hasVideoSolution bool 2 classes
52.867472	Medium	1,901	false	false	Find a Peak Element II	find-a-peak-element-ii	['Array', 'Binary Search', 'Matrix']	false	false
42.380192	Medium	1,902	false	true	Depth of BST Given Insertion Order	depth-of-bst-given-insertion-order	['Array', 'Tree', 'Binary Search Tree', 'Binary Tree', 'Ordered Set']	false	false
64.691396	Easy	1,903	false	false	Largest Odd Number in String	largest-odd-number-in-string	['Math', 'String', 'Greedy']	true	false
43.381137	Medium	1,904	false	false	The Number of Full Rounds You Have Played	the-number-of-full-rounds-you-have-played	['Math', 'String']	false	false
72.817957	Medium	1,905	false	false	Count Sub Islands	count-sub-islands	['Array', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Matrix']	true	false
44.630132	Medium	1,906	false	false	Minimum Absolute Difference Queries	minimum-absolute-difference-queries	['Array', 'Hash Table']	false	false
61.838864	Medium	1,907	false	false	Count Salary Categories	count-salary-categories	['Database']	true	false
62.898213	Medium	1,908	false	true	Game of Nim	game-of-nim	['Array', 'Math', 'Dynamic Programming', 'Bit Manipulation', 'Brainteaser', 'Game Theory']	true	false
28.527817	Easy	1,909	false	false	Remove One Element to Make the Array Strictly Increasing	remove-one-element-to-make-the-array-strictly-increasing	['Array']	false	false
78.005662	Medium	1,910	false	false	Remove All Occurrences of a Substring	remove-all-occurrences-of-a-substring	['String', 'Stack', 'Simulation']	true	false
58.701355	Medium	1,911	false	false	Maximum Alternating Subsequence Sum	maximum-alternating-subsequence-sum	['Array', 'Dynamic Programming']	false	false
37.116057	Hard	1,912	false	false	Design Movie Rental System	design-movie-rental-system	['Array', 'Hash Table', 'Design', 'Heap (Priority Queue)', 'Ordered Set']	false	false
82.856257	Easy	1,913	false	false	Maximum Product Difference Between Two Pairs	maximum-product-difference-between-two-pairs	['Array', 'Sorting']	true	false
50.059201	Medium	1,914	false	false	Cyclically Rotating a Grid	cyclically-rotating-a-grid	['Array', 'Matrix', 'Simulation']	false	false
66.663835	Medium	1,915	false	false	Number of Wonderful Substrings	number-of-wonderful-substrings	['Hash Table', 'String', 'Bit Manipulation', 'Prefix Sum']	true	false
48.232364	Hard	1,916	false	false	Count Ways to Build Rooms in an Ant Colony	count-ways-to-build-rooms-in-an-ant-colony	['Math', 'Dynamic Programming', 'Tree', 'Graph', 'Topological Sort', 'Combinatorics']	false	false
27.722737	Hard	1,917	false	true	Leetcodify Friends Recommendations	leetcodify-friends-recommendations	['Database']	false	false
52.758944	Medium	1,918	false	true	Kth Smallest Subarray Sum	kth-smallest-subarray-sum	['Array', 'Binary Search', 'Sliding Window']	false	false
42.509375	Hard	1,919	false	true	Leetcodify Similar Friends	leetcodify-similar-friends	['Database']	false	false
90.237168	Easy	1,920	false	false	Build Array from Permutation	build-array-from-permutation	['Array', 'Simulation']	false	false
50.809334	Medium	1,921	false	false	Eliminate Maximum Number of Monsters	eliminate-maximum-number-of-monsters	['Array', 'Greedy', 'Sorting']	true	false
48.705956	Medium	1,922	false	false	Count Good Numbers	count-good-numbers	['Math', 'Recursion']	true	false
27.87166	Hard	1,923	false	false	Longest Common Subpath	longest-common-subpath	['Array', 'Binary Search', 'Rolling Hash', 'Suffix Array', 'Hash Function']	false	false
49.637243	Hard	1,924	false	true	Erect the Fence II	erect-the-fence-ii	['Array', 'Math', 'Geometry']	false	false
68.633528	Easy	1,925	false	false	Count Square Sum Triples	count-square-sum-triples	['Math', 'Enumeration']	false	false
47.307208	Medium	1,926	false	false	Nearest Exit from Entrance in Maze	nearest-exit-from-entrance-in-maze	['Array', 'Breadth-First Search', 'Matrix']	true	false
48.147374	Medium	1,927	false	false	Sum Game	sum-game	['Math', 'String', 'Greedy', 'Game Theory']	false	false
39.295809	Hard	1,928	false	false	Minimum Cost to Reach Destination in Time	minimum-cost-to-reach-destination-in-time	['Array', 'Dynamic Programming', 'Graph']	false	false
90.414301	Easy	1,929	false	false	Concatenation of Array	concatenation-of-array	['Array', 'Simulation']	false	false
70.872417	Medium	1,930	false	false	Unique Length-3 Palindromic Subsequences	unique-length-3-palindromic-subsequences	['Hash Table', 'String', 'Bit Manipulation', 'Prefix Sum']	true	false
56.78487	Hard	1,931	false	false	Painting a Grid With Three Different Colors	painting-a-grid-with-three-different-colors	['Dynamic Programming']	false	false
39.221935	Hard	1,932	false	false	Merge BSTs to Create Single BST	merge-bsts-to-create-single-bst	['Hash Table', 'Binary Search', 'Tree', 'Depth-First Search', 'Binary Tree']	false	false
50.658979	Easy	1,933	false	true	Check if String Is Decomposable Into Value-Equal Substrings	check-if-string-is-decomposable-into-value-equal-substrings	['String']	false	false
60.749038	Medium	1,934	false	false	Confirmation Rate	confirmation-rate	['Database']	false	false
74.430727	Easy	1,935	false	false	Maximum Number of Words You Can Type	maximum-number-of-words-you-can-type	['Hash Table', 'String']	false	false
43.204682	Medium	1,936	false	false	Add Minimum Number of Rungs	add-minimum-number-of-rungs	['Array', 'Greedy']	false	false
42.363141	Medium	1,937	false	false	Maximum Number of Points with Cost	maximum-number-of-points-with-cost	['Array', 'Dynamic Programming', 'Matrix']	true	false
43.80838	Hard	1,938	false	false	Maximum Genetic Difference Query	maximum-genetic-difference-query	['Array', 'Hash Table', 'Bit Manipulation', 'Depth-First Search', 'Trie']	false	false
56.580457	Easy	1,939	false	true	Users That Actively Request Confirmation Messages	users-that-actively-request-confirmation-messages	['Database']	false	false
81.291899	Medium	1,940	false	true	Longest Common Subsequence Between Sorted Arrays	longest-common-subsequence-between-sorted-arrays	['Array', 'Hash Table', 'Counting']	true	false
78.425234	Easy	1,941	false	false	Check if All Characters Have Equal Number of Occurrences	check-if-all-characters-have-equal-number-of-occurrences	['Hash Table', 'String', 'Counting']	false	false
60.504647	Medium	1,942	false	false	The Number of the Smallest Unoccupied Chair	the-number-of-the-smallest-unoccupied-chair	['Array', 'Hash Table', 'Heap (Priority Queue)']	true	false
50.770707	Medium	1,943	false	false	Describe the Painting	describe-the-painting	['Array', 'Hash Table', 'Sorting', 'Prefix Sum']	false	false
70.715493	Hard	1,944	false	false	Number of Visible People in a Queue	number-of-visible-people-in-a-queue	['Array', 'Stack', 'Monotonic Stack']	false	false
74.703663	Easy	1,945	false	false	Sum of Digits of String After Convert	sum-of-digits-of-string-after-convert	['String', 'Simulation']	true	false
36.564775	Medium	1,946	false	false	Largest Number After Mutating Substring	largest-number-after-mutating-substring	['Array', 'String', 'Greedy']	false	false
62.965105	Medium	1,947	false	false	Maximum Compatibility Score Sum	maximum-compatibility-score-sum	['Array', 'Dynamic Programming', 'Backtracking', 'Bit Manipulation', 'Bitmask']	false	false
53.539847	Hard	1,948	false	false	Delete Duplicate Folders in System	delete-duplicate-folders-in-system	['Array', 'Hash Table', 'String', 'Trie', 'Hash Function']	false	false
54.460112	Medium	1,949	false	true	Strong Friendship	strong-friendship	['Database']	false	false
47.911265	Medium	1,950	false	true	Maximum of Minimum Values in All Subarrays	maximum-of-minimum-values-in-all-subarrays	['Array', 'Stack', 'Monotonic Stack']	false	false
69.144863	Medium	1,951	false	true	All the Pairs With the Maximum Number of Common Followers	all-the-pairs-with-the-maximum-number-of-common-followers	['Database']	false	false
62.315117	Easy	1,952	false	false	Three Divisors	three-divisors	['Math', 'Enumeration', 'Number Theory']	false	false
41.104804	Medium	1,953	false	false	Maximum Number of Weeks for Which You Can Work	maximum-number-of-weeks-for-which-you-can-work	['Array', 'Greedy']	false	false
54.194178	Medium	1,954	false	false	Minimum Garden Perimeter to Collect Enough Apples	minimum-garden-perimeter-to-collect-enough-apples	['Math', 'Binary Search']	false	false
51.554978	Hard	1,955	false	false	Count Number of Special Subsequences	count-number-of-special-subsequences	['Array', 'Dynamic Programming']	false	false
48.973482	Hard	1,956	false	true	Minimum Time For K Virus Variants to Spread	minimum-time-for-k-virus-variants-to-spread	['Array', 'Math', 'Binary Search', 'Geometry', 'Enumeration']	false	false
71.607237	Easy	1,957	false	false	Delete Characters to Make Fancy String	delete-characters-to-make-fancy-string	['String']	true	false
49.07863	Medium	1,958	false	false	Check if Move is Legal	check-if-move-is-legal	['Array', 'Matrix', 'Enumeration']	false	false
42.627453	Medium	1,959	false	false	Minimum Total Space Wasted With K Resizing Operations	minimum-total-space-wasted-with-k-resizing-operations	['Array', 'Dynamic Programming']	false	false
30.341314	Hard	1,960	false	false	Maximum Product of the Length of Two Palindromic Substrings	maximum-product-of-the-length-of-two-palindromic-substrings	['String', 'Rolling Hash', 'Hash Function']	false	false
52.416554	Easy	1,961	false	false	Check If String Is a Prefix of Array	check-if-string-is-a-prefix-of-array	['Array', 'Two Pointers', 'String']	false	false
64.324756	Medium	1,962	false	false	Remove Stones to Minimize the Total	remove-stones-to-minimize-the-total	['Array', 'Greedy', 'Heap (Priority Queue)']	true	false
77.904894	Medium	1,963	false	false	Minimum Number of Swaps to Make the String Balanced	minimum-number-of-swaps-to-make-the-string-balanced	['Two Pointers', 'String', 'Stack', 'Greedy']	true	false
62.466854	Hard	1,964	false	false	Find the Longest Valid Obstacle Course at Each Position	find-the-longest-valid-obstacle-course-at-each-position	['Array', 'Binary Search', 'Binary Indexed Tree']	true	false
72.790168	Easy	1,965	false	false	Employees With Missing Information	employees-with-missing-information	['Database']	true	false
62.446396	Medium	1,966	false	true	Binary Searchable Numbers in an Unsorted Array	binary-searchable-numbers-in-an-unsorted-array	['Array', 'Binary Search']	false	false
81.694745	Easy	1,967	false	false	Number of Strings That Appear as Substrings in Word	number-of-strings-that-appear-as-substrings-in-word	['Array', 'String']	false	false
49.967413	Medium	1,968	false	false	Array With Elements Not Equal to Average of Neighbors	array-with-elements-not-equal-to-average-of-neighbors	['Array', 'Greedy', 'Sorting']	false	false
36.190681	Medium	1,969	false	false	Minimum Non-Zero Product of the Array Elements	minimum-non-zero-product-of-the-array-elements	['Math', 'Greedy', 'Recursion']	false	false
62.130774	Hard	1,970	false	false	Last Day Where You Can Still Cross	last-day-where-you-can-still-cross	['Array', 'Binary Search', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Matrix']	true	false
53.899672	Easy	1,971	false	false	Find if Path Exists in Graph	find-if-path-exists-in-graph	['Depth-First Search', 'Breadth-First Search', 'Union Find', 'Graph']	true	false
50.957462	Hard	1,972	false	true	First and Last Call On the Same Day	first-and-last-call-on-the-same-day	['Database']	true	false
76.973001	Medium	1,973	false	true	Count Nodes Equal to Sum of Descendants	count-nodes-equal-to-sum-of-descendants	['Tree', 'Depth-First Search', 'Binary Tree']	true	false
77.0359	Easy	1,974	false	false	Minimum Time to Type Word Using Special Typewriter	minimum-time-to-type-word-using-special-typewriter	['String', 'Greedy']	false	false
65.945466	Medium	1,975	false	false	Maximum Matrix Sum	maximum-matrix-sum	['Array', 'Greedy', 'Matrix']	true	false
37.836732	Medium	1,976	false	false	Number of Ways to Arrive at Destination	number-of-ways-to-arrive-at-destination	['Dynamic Programming', 'Graph', 'Topological Sort', 'Shortest Path']	true	false
20.917525	Hard	1,977	false	false	Number of Ways to Separate Numbers	number-of-ways-to-separate-numbers	['String', 'Dynamic Programming', 'Suffix Array']	false	false
48.829022	Easy	1,978	false	false	Employees Whose Manager Left the Company	employees-whose-manager-left-the-company	['Database']	false	false
78.429261	Easy	1,979	false	false	Find Greatest Common Divisor of Array	find-greatest-common-divisor-of-array	['Array', 'Math', 'Number Theory']	false	false
79.349883	Medium	1,980	false	false	Find Unique Binary String	find-unique-binary-string	['Array', 'Hash Table', 'String', 'Backtracking']	true	false
35.708086	Medium	1,981	false	false	Minimize the Difference Between Target and Chosen Elements	minimize-the-difference-between-target-and-chosen-elements	['Array', 'Dynamic Programming', 'Matrix']	false	false
48.517918	Hard	1,982	false	false	Find Array Given Subset Sums	find-array-given-subset-sums	['Array', 'Divide and Conquer']	false	false
52.973062	Medium	1,983	false	true	Widest Pair of Indices With Equal Range Sum	widest-pair-of-indices-with-equal-range-sum	['Array', 'Hash Table', 'Prefix Sum']	false	false
58.195451	Easy	1,984	false	false	Minimum Difference Between Highest and Lowest of K Scores	minimum-difference-between-highest-and-lowest-of-k-scores	['Array', 'Sliding Window', 'Sorting']	false	false
46.607468	Medium	1,985	false	false	Find the Kth Largest Integer in the Array	find-the-kth-largest-integer-in-the-array	['Array', 'String', 'Divide and Conquer', 'Sorting', 'Heap (Priority Queue)', 'Quickselect']	false	false
33.531648	Medium	1,986	false	false	Minimum Number of Work Sessions to Finish the Tasks	minimum-number-of-work-sessions-to-finish-the-tasks	['Array', 'Dynamic Programming', 'Backtracking', 'Bit Manipulation', 'Bitmask']	false	false
52.014769	Hard	1,987	false	false	Number of Unique Good Subsequences	number-of-unique-good-subsequences	['String', 'Dynamic Programming']	false	false
66.912623	Medium	1,988	false	true	Find Cutoff Score for Each School	find-cutoff-score-for-each-school	['Database']	true	false
49.989765	Medium	1,989	false	true	Maximum Number of People That Can Be Caught in Tag	maximum-number-of-people-that-can-be-caught-in-tag	['Array', 'Greedy']	false	false
49.01755	Medium	1,990	false	true	Count the Number of Experiments	count-the-number-of-experiments	['Database']	false	false
67.866433	Easy	1,991	false	false	Find the Middle Index in Array	find-the-middle-index-in-array	['Array', 'Prefix Sum']	false	false
75.491928	Medium	1,992	false	false	Find All Groups of Farmland	find-all-groups-of-farmland	['Array', 'Depth-First Search', 'Breadth-First Search', 'Matrix']	true	false
47.091924	Medium	1,993	false	false	Operations on Tree	operations-on-tree	['Array', 'Hash Table', 'Tree', 'Depth-First Search', 'Breadth-First Search', 'Design']	false	false
35.668886	Hard	1,994	false	false	The Number of Good Subsets	the-number-of-good-subsets	['Array', 'Math', 'Dynamic Programming', 'Bit Manipulation', 'Bitmask']	false	false
62.46542	Easy	1,995	false	false	Count Special Quadruplets	count-special-quadruplets	['Array', 'Hash Table', 'Enumeration']	false	false
44.135848	Medium	1,996	false	false	The Number of Weak Characters in the Game	the-number-of-weak-characters-in-the-game	['Array', 'Stack', 'Greedy', 'Sorting', 'Monotonic Stack']	true	false
39.432897	Medium	1,997	false	false	First Day Where You Have Been in All the Rooms	first-day-where-you-have-been-in-all-the-rooms	['Array', 'Dynamic Programming']	false	false
46.222391	Hard	1,998	false	false	GCD Sort of an Array	gcd-sort-of-an-array	['Array', 'Math', 'Union Find', 'Sorting', 'Number Theory']	false	false
48.105745	Medium	1,999	false	true	Smallest Greater Multiple Made of Two Digits	smallest-greater-multiple-made-of-two-digits	['Math', 'Enumeration']	false	false
86.385207	Easy	2,000	false	false	Reverse Prefix of Word	reverse-prefix-of-word	['Two Pointers', 'String', 'Stack']	true	false

52.867472

Medium

1,901

false

Find a Peak Element II

find-a-peak-element-ii

['Array', 'Binary Search', 'Matrix']

false

42.380192

Medium

1,902

false

true

Depth of BST Given Insertion Order

depth-of-bst-given-insertion-order

['Array', 'Tree', 'Binary Search Tree', 'Binary Tree', 'Ordered Set']

false

64.691396

Easy

1,903

false

Largest Odd Number in String

largest-odd-number-in-string

['Math', 'String', 'Greedy']

true

false

43.381137

Medium

1,904

false

The Number of Full Rounds You Have Played

the-number-of-full-rounds-you-have-played

['Math', 'String']

false

72.817957

Medium

1,905

false

Count Sub Islands

count-sub-islands

['Array', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Matrix']

true

false

44.630132

Medium

1,906

false

Minimum Absolute Difference Queries

minimum-absolute-difference-queries

['Array', 'Hash Table']

false

61.838864

Medium

1,907

false

Count Salary Categories

count-salary-categories

['Database']

true

false

62.898213

Medium

1,908

false

true

Game of Nim

game-of-nim

['Array', 'Math', 'Dynamic Programming', 'Bit Manipulation', 'Brainteaser', 'Game Theory']

true

false

28.527817

Easy

1,909

false

Remove One Element to Make the Array Strictly Increasing

remove-one-element-to-make-the-array-strictly-increasing

['Array']

false

78.005662

Medium

1,910

false

Remove All Occurrences of a Substring

remove-all-occurrences-of-a-substring

['String', 'Stack', 'Simulation']

true

false

58.701355

Medium

1,911

false

Maximum Alternating Subsequence Sum

maximum-alternating-subsequence-sum

['Array', 'Dynamic Programming']

false

37.116057

Hard

1,912

false

Design Movie Rental System

design-movie-rental-system

['Array', 'Hash Table', 'Design', 'Heap (Priority Queue)', 'Ordered Set']

false

82.856257

Easy

1,913

false

Maximum Product Difference Between Two Pairs

maximum-product-difference-between-two-pairs

['Array', 'Sorting']

true

false

50.059201

Medium

1,914

false

Cyclically Rotating a Grid

cyclically-rotating-a-grid

['Array', 'Matrix', 'Simulation']

false

66.663835

Medium

1,915

false

Number of Wonderful Substrings

number-of-wonderful-substrings

['Hash Table', 'String', 'Bit Manipulation', 'Prefix Sum']

true

false

48.232364

Hard

1,916

false

Count Ways to Build Rooms in an Ant Colony

count-ways-to-build-rooms-in-an-ant-colony

['Math', 'Dynamic Programming', 'Tree', 'Graph', 'Topological Sort', 'Combinatorics']

false

27.722737

Hard

1,917

false

true

Leetcodify Friends Recommendations

leetcodify-friends-recommendations

['Database']

false

52.758944

Medium

1,918

false

true

Kth Smallest Subarray Sum

kth-smallest-subarray-sum

['Array', 'Binary Search', 'Sliding Window']

false

42.509375

Hard

1,919

false

true

Leetcodify Similar Friends

leetcodify-similar-friends

['Database']

false

90.237168

Easy

1,920

false

Build Array from Permutation

build-array-from-permutation

['Array', 'Simulation']

false

50.809334

Medium

1,921

false

Eliminate Maximum Number of Monsters

eliminate-maximum-number-of-monsters

['Array', 'Greedy', 'Sorting']

true

false

48.705956

Medium

1,922

false

Count Good Numbers

count-good-numbers

['Math', 'Recursion']

true

false

27.87166

Hard

1,923

false

Longest Common Subpath

longest-common-subpath

['Array', 'Binary Search', 'Rolling Hash', 'Suffix Array', 'Hash Function']

false

49.637243

Hard

1,924

false

true

Erect the Fence II

erect-the-fence-ii

['Array', 'Math', 'Geometry']

false

68.633528

Easy

1,925

false

Count Square Sum Triples

count-square-sum-triples

['Math', 'Enumeration']

false

47.307208

Medium

1,926

false

Nearest Exit from Entrance in Maze

nearest-exit-from-entrance-in-maze

['Array', 'Breadth-First Search', 'Matrix']

true

false

48.147374

Medium

1,927

false

Sum Game

sum-game

['Math', 'String', 'Greedy', 'Game Theory']

false

39.295809

Hard

1,928

false

Minimum Cost to Reach Destination in Time

minimum-cost-to-reach-destination-in-time

['Array', 'Dynamic Programming', 'Graph']

false

90.414301

Easy

1,929

false

Concatenation of Array

concatenation-of-array

['Array', 'Simulation']

false

70.872417

Medium

1,930

false

Unique Length-3 Palindromic Subsequences

unique-length-3-palindromic-subsequences

['Hash Table', 'String', 'Bit Manipulation', 'Prefix Sum']

true

false

56.78487

Hard

1,931

false

Painting a Grid With Three Different Colors

painting-a-grid-with-three-different-colors

['Dynamic Programming']

false

39.221935

Hard

1,932

false

Merge BSTs to Create Single BST

merge-bsts-to-create-single-bst

['Hash Table', 'Binary Search', 'Tree', 'Depth-First Search', 'Binary Tree']

false

50.658979

Easy

1,933

false

true

Check if String Is Decomposable Into Value-Equal Substrings

check-if-string-is-decomposable-into-value-equal-substrings

['String']

false

60.749038

Medium

1,934

false

Confirmation Rate

confirmation-rate

['Database']

false

74.430727

Easy

1,935

false

Maximum Number of Words You Can Type

maximum-number-of-words-you-can-type

['Hash Table', 'String']

false

43.204682

Medium

1,936

false

Add Minimum Number of Rungs

add-minimum-number-of-rungs

['Array', 'Greedy']

false

42.363141

Medium

1,937

false

Maximum Number of Points with Cost

maximum-number-of-points-with-cost

['Array', 'Dynamic Programming', 'Matrix']

true

false

43.80838

Hard

1,938

false

Maximum Genetic Difference Query

maximum-genetic-difference-query

['Array', 'Hash Table', 'Bit Manipulation', 'Depth-First Search', 'Trie']

false

56.580457

Easy

1,939

false

true

Users That Actively Request Confirmation Messages

users-that-actively-request-confirmation-messages

['Database']

false

81.291899

Medium

1,940

false

true

Longest Common Subsequence Between Sorted Arrays

longest-common-subsequence-between-sorted-arrays

['Array', 'Hash Table', 'Counting']

true

false

78.425234

Easy

1,941

false

Check if All Characters Have Equal Number of Occurrences

check-if-all-characters-have-equal-number-of-occurrences

['Hash Table', 'String', 'Counting']

false

60.504647

Medium

1,942

false

The Number of the Smallest Unoccupied Chair

the-number-of-the-smallest-unoccupied-chair

['Array', 'Hash Table', 'Heap (Priority Queue)']

true

false

50.770707

Medium

1,943

false

Describe the Painting

describe-the-painting

['Array', 'Hash Table', 'Sorting', 'Prefix Sum']

false

70.715493

Hard

1,944

false

Number of Visible People in a Queue

number-of-visible-people-in-a-queue

['Array', 'Stack', 'Monotonic Stack']

false

74.703663

Easy

1,945

false

Sum of Digits of String After Convert

sum-of-digits-of-string-after-convert

['String', 'Simulation']

true

false

36.564775

Medium

1,946

false

Largest Number After Mutating Substring

largest-number-after-mutating-substring

['Array', 'String', 'Greedy']

false

62.965105

Medium

1,947

false

Maximum Compatibility Score Sum

maximum-compatibility-score-sum

['Array', 'Dynamic Programming', 'Backtracking', 'Bit Manipulation', 'Bitmask']

false

53.539847

Hard

1,948

false

Delete Duplicate Folders in System

delete-duplicate-folders-in-system

['Array', 'Hash Table', 'String', 'Trie', 'Hash Function']

false

54.460112

Medium

1,949

false

true

Strong Friendship

strong-friendship

['Database']

false

47.911265

Medium

1,950

false

true

Maximum of Minimum Values in All Subarrays

maximum-of-minimum-values-in-all-subarrays

['Array', 'Stack', 'Monotonic Stack']

false

69.144863

Medium

1,951

false

true

All the Pairs With the Maximum Number of Common Followers

all-the-pairs-with-the-maximum-number-of-common-followers

['Database']

false

62.315117

Easy

1,952

false

Three Divisors

three-divisors

['Math', 'Enumeration', 'Number Theory']

false

41.104804

Medium

1,953

false

Maximum Number of Weeks for Which You Can Work

maximum-number-of-weeks-for-which-you-can-work

['Array', 'Greedy']

false

54.194178

Medium

1,954

false

Minimum Garden Perimeter to Collect Enough Apples

minimum-garden-perimeter-to-collect-enough-apples

['Math', 'Binary Search']

false

51.554978

Hard

1,955

false

Count Number of Special Subsequences

count-number-of-special-subsequences

['Array', 'Dynamic Programming']

false

48.973482

Hard

1,956

false

true

Minimum Time For K Virus Variants to Spread

minimum-time-for-k-virus-variants-to-spread

['Array', 'Math', 'Binary Search', 'Geometry', 'Enumeration']

false

71.607237

Easy

1,957

false

Delete Characters to Make Fancy String

delete-characters-to-make-fancy-string

['String']

true

false

49.07863

Medium

1,958

false

Check if Move is Legal

check-if-move-is-legal

['Array', 'Matrix', 'Enumeration']

false

42.627453

Medium

1,959

false

Minimum Total Space Wasted With K Resizing Operations

minimum-total-space-wasted-with-k-resizing-operations

['Array', 'Dynamic Programming']

false

30.341314

Hard

1,960

false

Maximum Product of the Length of Two Palindromic Substrings

maximum-product-of-the-length-of-two-palindromic-substrings

['String', 'Rolling Hash', 'Hash Function']

false

52.416554

Easy

1,961

false

Check If String Is a Prefix of Array

check-if-string-is-a-prefix-of-array

['Array', 'Two Pointers', 'String']

false

64.324756

Medium

1,962

false

Remove Stones to Minimize the Total

remove-stones-to-minimize-the-total

['Array', 'Greedy', 'Heap (Priority Queue)']

true

false

77.904894

Medium

1,963

false

Minimum Number of Swaps to Make the String Balanced

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

['Two Pointers', 'String', 'Stack', 'Greedy']

true

false

62.466854

Hard

1,964

false

Find the Longest Valid Obstacle Course at Each Position

find-the-longest-valid-obstacle-course-at-each-position

['Array', 'Binary Search', 'Binary Indexed Tree']

true

false

72.790168

Easy

1,965

false

Employees With Missing Information

employees-with-missing-information

['Database']

true

false

62.446396

Medium

1,966

false

true

Binary Searchable Numbers in an Unsorted Array

binary-searchable-numbers-in-an-unsorted-array

['Array', 'Binary Search']

false

81.694745

Easy

1,967

false

Number of Strings That Appear as Substrings in Word

number-of-strings-that-appear-as-substrings-in-word

['Array', 'String']

false

49.967413

Medium

1,968

false

Array With Elements Not Equal to Average of Neighbors

array-with-elements-not-equal-to-average-of-neighbors

['Array', 'Greedy', 'Sorting']

false

36.190681

Medium

1,969

false

Minimum Non-Zero Product of the Array Elements

minimum-non-zero-product-of-the-array-elements

['Math', 'Greedy', 'Recursion']

false

62.130774

Hard

1,970

false

Last Day Where You Can Still Cross

last-day-where-you-can-still-cross

['Array', 'Binary Search', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Matrix']

true

false

53.899672

Easy

1,971

false

Find if Path Exists in Graph

find-if-path-exists-in-graph

['Depth-First Search', 'Breadth-First Search', 'Union Find', 'Graph']

true

false

50.957462

Hard

1,972

false

true

First and Last Call On the Same Day

first-and-last-call-on-the-same-day

['Database']

true

false

76.973001

Medium

1,973

false

true

Count Nodes Equal to Sum of Descendants

count-nodes-equal-to-sum-of-descendants

['Tree', 'Depth-First Search', 'Binary Tree']

true

false

77.0359

Easy

1,974

false

Minimum Time to Type Word Using Special Typewriter

minimum-time-to-type-word-using-special-typewriter

['String', 'Greedy']

false

65.945466

Medium

1,975

false

Maximum Matrix Sum

maximum-matrix-sum

['Array', 'Greedy', 'Matrix']

true

false

37.836732

Medium

1,976

false

Number of Ways to Arrive at Destination

number-of-ways-to-arrive-at-destination

['Dynamic Programming', 'Graph', 'Topological Sort', 'Shortest Path']

true

false

20.917525

Hard

1,977

false

Number of Ways to Separate Numbers

number-of-ways-to-separate-numbers

['String', 'Dynamic Programming', 'Suffix Array']

false

48.829022

Easy

1,978

false

Employees Whose Manager Left the Company

employees-whose-manager-left-the-company

['Database']

false

78.429261

Easy

1,979

false

Find Greatest Common Divisor of Array

find-greatest-common-divisor-of-array

['Array', 'Math', 'Number Theory']

false

79.349883

Medium

1,980

false

Find Unique Binary String

find-unique-binary-string

['Array', 'Hash Table', 'String', 'Backtracking']

true

false

35.708086

Medium

1,981

false

Minimize the Difference Between Target and Chosen Elements

minimize-the-difference-between-target-and-chosen-elements

['Array', 'Dynamic Programming', 'Matrix']

false

48.517918

Hard

1,982

false

Find Array Given Subset Sums

find-array-given-subset-sums

['Array', 'Divide and Conquer']

false

52.973062

Medium

1,983

false

true

Widest Pair of Indices With Equal Range Sum

widest-pair-of-indices-with-equal-range-sum

['Array', 'Hash Table', 'Prefix Sum']

false

58.195451

Easy

1,984

false

Minimum Difference Between Highest and Lowest of K Scores

minimum-difference-between-highest-and-lowest-of-k-scores

['Array', 'Sliding Window', 'Sorting']

false

46.607468

Medium

1,985

false

Find the Kth Largest Integer in the Array

find-the-kth-largest-integer-in-the-array

['Array', 'String', 'Divide and Conquer', 'Sorting', 'Heap (Priority Queue)', 'Quickselect']

false

33.531648

Medium

1,986

false

Minimum Number of Work Sessions to Finish the Tasks

minimum-number-of-work-sessions-to-finish-the-tasks

['Array', 'Dynamic Programming', 'Backtracking', 'Bit Manipulation', 'Bitmask']

false

52.014769

Hard

1,987

false

Number of Unique Good Subsequences

number-of-unique-good-subsequences

['String', 'Dynamic Programming']

false

66.912623

Medium

1,988

false

true

Find Cutoff Score for Each School

find-cutoff-score-for-each-school

['Database']

true

false

49.989765

Medium

1,989

false

true

Maximum Number of People That Can Be Caught in Tag

maximum-number-of-people-that-can-be-caught-in-tag

['Array', 'Greedy']

false

49.01755

Medium

1,990

false

true

Count the Number of Experiments

count-the-number-of-experiments

['Database']

false

67.866433

Easy

1,991

false

Find the Middle Index in Array

find-the-middle-index-in-array

['Array', 'Prefix Sum']

false

75.491928

Medium

1,992

false

Find All Groups of Farmland

find-all-groups-of-farmland

['Array', 'Depth-First Search', 'Breadth-First Search', 'Matrix']

true

false

47.091924

Medium

1,993

false

Operations on Tree

operations-on-tree

['Array', 'Hash Table', 'Tree', 'Depth-First Search', 'Breadth-First Search', 'Design']

false

35.668886

Hard

1,994

false

The Number of Good Subsets

the-number-of-good-subsets

['Array', 'Math', 'Dynamic Programming', 'Bit Manipulation', 'Bitmask']

false

62.46542

Easy

1,995

false

Count Special Quadruplets

count-special-quadruplets

['Array', 'Hash Table', 'Enumeration']

false

44.135848

Medium

1,996

false

The Number of Weak Characters in the Game

the-number-of-weak-characters-in-the-game

['Array', 'Stack', 'Greedy', 'Sorting', 'Monotonic Stack']

true

false

39.432897

Medium

1,997

false

First Day Where You Have Been in All the Rooms

first-day-where-you-have-been-in-all-the-rooms

['Array', 'Dynamic Programming']

false

46.222391

Hard

1,998

false

GCD Sort of an Array

gcd-sort-of-an-array

['Array', 'Math', 'Union Find', 'Sorting', 'Number Theory']

false

48.105745

Medium

1,999

false

true

Smallest Greater Multiple Made of Two Digits

smallest-greater-multiple-made-of-two-digits

['Math', 'Enumeration']

false

86.385207

Easy

2,000

false

Reverse Prefix of Word

reverse-prefix-of-word

['Two Pointers', 'String', 'Stack']

true

false