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
67.332268	Medium	901	false	false	Online Stock Span	online-stock-span	['Stack', 'Design', 'Monotonic Stack', 'Data Stream']	true	false
43.157942	Hard	902	false	false	Numbers At Most N Given Digit Set	numbers-at-most-n-given-digit-set	['Array', 'Math', 'String', 'Binary Search', 'Dynamic Programming']	true	false
56.760833	Hard	903	false	false	Valid Permutations for DI Sequence	valid-permutations-for-di-sequence	['String', 'Dynamic Programming', 'Prefix Sum']	true	false
45.807032	Medium	904	false	false	Fruit Into Baskets	fruit-into-baskets	['Array', 'Hash Table', 'Sliding Window']	true	false
76.270826	Easy	905	false	false	Sort Array By Parity	sort-array-by-parity	['Array', 'Two Pointers', 'Sorting']	true	false
39.173793	Hard	906	false	false	Super Palindromes	super-palindromes	['Math', 'String', 'Enumeration']	true	false
37.411732	Medium	907	false	false	Sum of Subarray Minimums	sum-of-subarray-minimums	['Array', 'Dynamic Programming', 'Stack', 'Monotonic Stack']	true	false
71.588821	Easy	908	false	false	Smallest Range I	smallest-range-i	['Array', 'Math']	true	false
44.077568	Medium	909	false	false	Snakes and Ladders	snakes-and-ladders	['Array', 'Breadth-First Search', 'Matrix']	true	false
36.989934	Medium	910	false	false	Smallest Range II	smallest-range-ii	['Array', 'Math', 'Greedy', 'Sorting']	true	false
52.481183	Medium	911	false	false	Online Election	online-election	['Array', 'Hash Table', 'Binary Search', 'Design']	true	false
56.932326	Medium	912	false	false	Sort an Array	sort-an-array	['Array', 'Divide and Conquer', 'Sorting', 'Heap (Priority Queue)', 'Merge Sort', 'Bucket Sort', 'Radix Sort', 'Counting Sort']	true	false
33.984965	Hard	913	false	false	Cat and Mouse	cat-and-mouse	['Math', 'Dynamic Programming', 'Graph', 'Topological Sort', 'Memoization', 'Game Theory']	true	false
29.82988	Easy	914	false	false	X of a Kind in a Deck of Cards	x-of-a-kind-in-a-deck-of-cards	['Array', 'Hash Table', 'Math', 'Counting', 'Number Theory']	true	false
48.949954	Medium	915	false	false	Partition Array into Disjoint Intervals	partition-array-into-disjoint-intervals	['Array']	true	false
55.647029	Medium	916	false	false	Word Subsets	word-subsets	['Array', 'Hash Table', 'String']	true	false
66.547528	Easy	917	false	false	Reverse Only Letters	reverse-only-letters	['Two Pointers', 'String']	true	false
47.121795	Medium	918	false	false	Maximum Sum Circular Subarray	maximum-sum-circular-subarray	['Array', 'Divide and Conquer', 'Dynamic Programming', 'Queue', 'Monotonic Queue']	true	false
66.285234	Medium	919	false	false	Complete Binary Tree Inserter	complete-binary-tree-inserter	['Tree', 'Breadth-First Search', 'Design', 'Binary Tree']	true	false
59.966893	Hard	920	false	false	Number of Music Playlists	number-of-music-playlists	['Math', 'Dynamic Programming', 'Combinatorics']	true	false
74.68293	Medium	921	false	false	Minimum Add to Make Parentheses Valid	minimum-add-to-make-parentheses-valid	['String', 'Stack', 'Greedy']	true	false
70.953071	Easy	922	false	false	Sort Array By Parity II	sort-array-by-parity-ii	['Array', 'Two Pointers', 'Sorting']	true	true
45.721543	Medium	923	false	false	3Sum With Multiplicity	3sum-with-multiplicity	['Array', 'Hash Table', 'Two Pointers', 'Sorting', 'Counting']	true	false
42.224148	Hard	924	false	false	Minimize Malware Spread	minimize-malware-spread	['Array', 'Hash Table', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Graph']	true	false
32.437046	Easy	925	false	false	Long Pressed Name	long-pressed-name	['Two Pointers', 'String']	true	false
61.559627	Medium	926	false	false	Flip String to Monotone Increasing	flip-string-to-monotone-increasing	['String', 'Dynamic Programming']	true	false
40.590731	Hard	927	false	false	Three Equal Parts	three-equal-parts	['Array', 'Math']	true	false
44.442743	Hard	928	false	false	Minimize Malware Spread II	minimize-malware-spread-ii	['Array', 'Hash Table', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Graph']	true	false
67.501461	Easy	929	false	false	Unique Email Addresses	unique-email-addresses	['Array', 'Hash Table', 'String']	true	false
65.352792	Medium	930	false	false	Binary Subarrays With Sum	binary-subarrays-with-sum	['Array', 'Hash Table', 'Sliding Window', 'Prefix Sum']	true	false
61.812587	Medium	931	false	false	Minimum Falling Path Sum	minimum-falling-path-sum	['Array', 'Dynamic Programming', 'Matrix']	true	false
66.820388	Medium	932	false	false	Beautiful Array	beautiful-array	['Array', 'Math', 'Divide and Conquer']	true	false
77.284472	Easy	933	false	false	Number of Recent Calls	number-of-recent-calls	['Design', 'Queue', 'Data Stream']	true	false
58.401254	Medium	934	false	false	Shortest Bridge	shortest-bridge	['Array', 'Depth-First Search', 'Breadth-First Search', 'Matrix']	true	false
60.99821	Medium	935	false	false	Knight Dialer	knight-dialer	['Dynamic Programming']	true	false
61.874424	Hard	936	false	false	Stamping The Sequence	stamping-the-sequence	['String', 'Stack', 'Greedy', 'Queue']	true	false
56.706811	Medium	937	false	false	Reorder Data in Log Files	reorder-data-in-log-files	['Array', 'String', 'Sorting']	true	false
87.380421	Easy	938	false	false	Range Sum of BST	range-sum-of-bst	['Tree', 'Depth-First Search', 'Binary Search Tree', 'Binary Tree']	true	true
54.86899	Medium	939	false	false	Minimum Area Rectangle	minimum-area-rectangle	['Array', 'Hash Table', 'Math', 'Geometry', 'Sorting']	true	false
43.437298	Hard	940	false	false	Distinct Subsequences II	distinct-subsequences-ii	['String', 'Dynamic Programming']	true	true
33.91261	Easy	941	false	false	Valid Mountain Array	valid-mountain-array	['Array']	true	false
79.792849	Easy	942	false	false	DI String Match	di-string-match	['Array', 'Two Pointers', 'String', 'Greedy']	true	false
44.161772	Hard	943	false	false	Find the Shortest Superstring	find-the-shortest-superstring	['Array', 'String', 'Dynamic Programming', 'Bit Manipulation', 'Bitmask']	true	false
74.715737	Easy	944	false	false	Delete Columns to Make Sorted	delete-columns-to-make-sorted	['Array', 'String']	true	false
60.265956	Medium	945	false	false	Minimum Increment to Make Array Unique	minimum-increment-to-make-array-unique	['Array', 'Greedy', 'Sorting', 'Counting']	true	false
69.600582	Medium	946	false	false	Validate Stack Sequences	validate-stack-sequences	['Array', 'Stack', 'Simulation']	true	false
62.109197	Medium	947	false	false	Most Stones Removed with Same Row or Column	most-stones-removed-with-same-row-or-column	['Hash Table', 'Depth-First Search', 'Union Find', 'Graph']	true	false
59.093552	Medium	948	false	false	Bag of Tokens	bag-of-tokens	['Array', 'Two Pointers', 'Greedy', 'Sorting']	true	false
35.463833	Medium	949	false	false	Largest Time for Given Digits	largest-time-for-given-digits	['Array', 'String', 'Backtracking', 'Enumeration']	true	false
83.175455	Medium	950	false	false	Reveal Cards In Increasing Order	reveal-cards-in-increasing-order	['Array', 'Queue', 'Sorting', 'Simulation']	true	false
69.709017	Medium	951	false	false	Flip Equivalent Binary Trees	flip-equivalent-binary-trees	['Tree', 'Depth-First Search', 'Binary Tree']	true	false
41.013657	Hard	952	false	false	Largest Component Size by Common Factor	largest-component-size-by-common-factor	['Array', 'Hash Table', 'Math', 'Union Find', 'Number Theory']	true	false
55.485487	Easy	953	false	false	Verifying an Alien Dictionary	verifying-an-alien-dictionary	['Array', 'Hash Table', 'String']	true	false
39.329844	Medium	954	false	false	Array of Doubled Pairs	array-of-doubled-pairs	['Array', 'Hash Table', 'Greedy', 'Sorting']	true	false
35.474709	Medium	955	false	false	Delete Columns to Make Sorted II	delete-columns-to-make-sorted-ii	['Array', 'String', 'Greedy']	true	false
51.912751	Hard	956	false	false	Tallest Billboard	tallest-billboard	['Array', 'Dynamic Programming']	true	false
38.942962	Medium	957	false	false	Prison Cells After N Days	prison-cells-after-n-days	['Array', 'Hash Table', 'Math', 'Bit Manipulation']	true	false
58.135398	Medium	958	false	false	Check Completeness of a Binary Tree	check-completeness-of-a-binary-tree	['Tree', 'Breadth-First Search', 'Binary Tree']	true	false
77.644808	Medium	959	false	false	Regions Cut By Slashes	regions-cut-by-slashes	['Array', 'Hash Table', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Matrix']	true	false
58.393489	Hard	960	false	false	Delete Columns to Make Sorted III	delete-columns-to-make-sorted-iii	['Array', 'String', 'Dynamic Programming']	true	false
77.328792	Easy	961	false	false	N-Repeated Element in Size 2N Array	n-repeated-element-in-size-2n-array	['Array', 'Hash Table']	true	false
55.632116	Medium	962	false	false	Maximum Width Ramp	maximum-width-ramp	['Array', 'Two Pointers', 'Stack', 'Monotonic Stack']	true	false
55.424734	Medium	963	false	false	Minimum Area Rectangle II	minimum-area-rectangle-ii	['Array', 'Math', 'Geometry']	true	false
48.433549	Hard	964	false	false	Least Operators to Express Number	least-operators-to-express-number	['Math', 'Dynamic Programming', 'Memoization']	true	false
71.900979	Easy	965	false	false	Univalued Binary Tree	univalued-binary-tree	['Tree', 'Depth-First Search', 'Breadth-First Search', 'Binary Tree']	true	false
51.502352	Medium	966	false	false	Vowel Spellchecker	vowel-spellchecker	['Array', 'Hash Table', 'String']	true	false
58.604903	Medium	967	false	false	Numbers With Same Consecutive Differences	numbers-with-same-consecutive-differences	['Backtracking', 'Breadth-First Search']	true	false
47.024391	Hard	968	false	false	Binary Tree Cameras	binary-tree-cameras	['Dynamic Programming', 'Tree', 'Depth-First Search', 'Binary Tree']	true	false
71.044686	Medium	969	false	false	Pancake Sorting	pancake-sorting	['Array', 'Two Pointers', 'Greedy', 'Sorting']	true	false
43.917872	Medium	970	false	false	Powerful Integers	powerful-integers	['Hash Table', 'Math', 'Enumeration']	true	false
50.929121	Medium	971	false	false	Flip Binary Tree To Match Preorder Traversal	flip-binary-tree-to-match-preorder-traversal	['Tree', 'Depth-First Search', 'Binary Tree']	true	false
44.470357	Hard	972	false	false	Equal Rational Numbers	equal-rational-numbers	['Math', 'String']	true	false
67.681118	Medium	973	false	false	K Closest Points to Origin	k-closest-points-to-origin	['Array', 'Math', 'Divide and Conquer', 'Geometry', 'Sorting', 'Heap (Priority Queue)', 'Quickselect']	true	true
55.559222	Medium	974	false	false	Subarray Sums Divisible by K	subarray-sums-divisible-by-k	['Array', 'Hash Table', 'Prefix Sum']	true	false
40.621479	Hard	975	false	false	Odd Even Jump	odd-even-jump	['Array', 'Dynamic Programming', 'Stack', 'Monotonic Stack', 'Ordered Set']	true	false
57.125393	Easy	976	false	false	Largest Perimeter Triangle	largest-perimeter-triangle	['Array', 'Math', 'Greedy', 'Sorting']	true	false
73.129364	Easy	977	false	false	Squares of a Sorted Array	squares-of-a-sorted-array	['Array', 'Two Pointers', 'Sorting']	true	true
47.852458	Medium	978	false	false	Longest Turbulent Subarray	longest-turbulent-subarray	['Array', 'Dynamic Programming', 'Sliding Window']	true	false
77.11491	Medium	979	false	false	Distribute Coins in Binary Tree	distribute-coins-in-binary-tree	['Tree', 'Depth-First Search', 'Binary Tree']	true	false
82.243294	Hard	980	false	false	Unique Paths III	unique-paths-iii	['Array', 'Backtracking', 'Bit Manipulation', 'Matrix']	true	false
49.393764	Medium	981	false	false	Time Based Key-Value Store	time-based-key-value-store	['Hash Table', 'String', 'Binary Search', 'Design']	true	false
59.12237	Hard	982	false	false	Triples with Bitwise AND Equal To Zero	triples-with-bitwise-and-equal-to-zero	['Array', 'Hash Table', 'Bit Manipulation']	false	false
67.399504	Medium	983	false	false	Minimum Cost For Tickets	minimum-cost-for-tickets	['Array', 'Dynamic Programming']	true	false
44.387098	Medium	984	false	false	String Without AAA or BBB	string-without-aaa-or-bbb	['String', 'Greedy']	true	false
68.425196	Medium	985	false	false	Sum of Even Numbers After Queries	sum-of-even-numbers-after-queries	['Array', 'Simulation']	true	false
72.529394	Medium	986	false	false	Interval List Intersections	interval-list-intersections	['Array', 'Two Pointers', 'Line Sweep']	true	false
50.681343	Hard	987	false	false	Vertical Order Traversal of a Binary Tree	vertical-order-traversal-of-a-binary-tree	['Hash Table', 'Tree', 'Depth-First Search', 'Breadth-First Search', 'Sorting', 'Binary Tree']	true	true
60.709675	Medium	988	false	false	Smallest String Starting From Leaf	smallest-string-starting-from-leaf	['String', 'Backtracking', 'Tree', 'Depth-First Search', 'Binary Tree']	true	false
44.993705	Easy	989	false	false	Add to Array-Form of Integer	add-to-array-form-of-integer	['Array', 'Math']	true	false
50.905062	Medium	990	false	false	Satisfiability of Equality Equations	satisfiability-of-equality-equations	['Array', 'String', 'Union Find', 'Graph']	true	false
55.003515	Medium	991	false	false	Broken Calculator	broken-calculator	['Math', 'Greedy']	true	false
65.351532	Hard	992	false	false	Subarrays with K Different Integers	subarrays-with-k-different-integers	['Array', 'Hash Table', 'Sliding Window', 'Counting']	true	false
57.854906	Easy	993	false	false	Cousins in Binary Tree	cousins-in-binary-tree	['Tree', 'Depth-First Search', 'Breadth-First Search', 'Binary Tree']	true	false
56.168528	Medium	994	false	false	Rotting Oranges	rotting-oranges	['Array', 'Breadth-First Search', 'Matrix']	true	false
62.141624	Hard	995	false	false	Minimum Number of K Consecutive Bit Flips	minimum-number-of-k-consecutive-bit-flips	['Array', 'Bit Manipulation', 'Queue', 'Sliding Window', 'Prefix Sum']	true	false
50.395917	Hard	996	false	false	Number of Squareful Arrays	number-of-squareful-arrays	['Array', 'Hash Table', 'Math', 'Dynamic Programming', 'Backtracking', 'Bit Manipulation', 'Bitmask']	true	false
49.908667	Easy	997	false	false	Find the Town Judge	find-the-town-judge	['Array', 'Hash Table', 'Graph']	true	false
68.922884	Medium	998	false	false	Maximum Binary Tree II	maximum-binary-tree-ii	['Tree', 'Binary Tree']	false	false
70.130958	Easy	999	false	false	Available Captures for Rook	available-captures-for-rook	['Array', 'Matrix', 'Simulation']	false	false
44.100213	Hard	1,000	false	false	Minimum Cost to Merge Stones	minimum-cost-to-merge-stones	['Array', 'Dynamic Programming', 'Prefix Sum']	false	false

67.332268

Medium

901

false

Online Stock Span

online-stock-span

['Stack', 'Design', 'Monotonic Stack', 'Data Stream']

true

false

43.157942

Hard

902

false

Numbers At Most N Given Digit Set

numbers-at-most-n-given-digit-set

['Array', 'Math', 'String', 'Binary Search', 'Dynamic Programming']

true

false

56.760833

Hard

903

false

Valid Permutations for DI Sequence

valid-permutations-for-di-sequence

['String', 'Dynamic Programming', 'Prefix Sum']

true

false

45.807032

Medium

904

false

Fruit Into Baskets

fruit-into-baskets

['Array', 'Hash Table', 'Sliding Window']

true

false

76.270826

Easy

905

false

Sort Array By Parity

sort-array-by-parity

['Array', 'Two Pointers', 'Sorting']

true

false

39.173793

Hard

906

false

Super Palindromes

super-palindromes

['Math', 'String', 'Enumeration']

true

false

37.411732

Medium

907

false

Sum of Subarray Minimums

sum-of-subarray-minimums

['Array', 'Dynamic Programming', 'Stack', 'Monotonic Stack']

true

false

71.588821

Easy

908

false

Smallest Range I

smallest-range-i

['Array', 'Math']

true

false

44.077568

Medium

909

false

Snakes and Ladders

snakes-and-ladders

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

true

false

36.989934

Medium

910

false

Smallest Range II

smallest-range-ii

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

true

false

52.481183

Medium

911

false

Online Election

online-election

['Array', 'Hash Table', 'Binary Search', 'Design']

true

false

56.932326

Medium

912

false

Sort an Array

sort-an-array

['Array', 'Divide and Conquer', 'Sorting', 'Heap (Priority Queue)', 'Merge Sort', 'Bucket Sort', 'Radix Sort', 'Counting Sort']

true

false

33.984965

Hard

913

false

Cat and Mouse

cat-and-mouse

['Math', 'Dynamic Programming', 'Graph', 'Topological Sort', 'Memoization', 'Game Theory']

true

false

29.82988

Easy

914

false

X of a Kind in a Deck of Cards

x-of-a-kind-in-a-deck-of-cards

['Array', 'Hash Table', 'Math', 'Counting', 'Number Theory']

true

false

48.949954

Medium

915

false

Partition Array into Disjoint Intervals

partition-array-into-disjoint-intervals

['Array']

true

false

55.647029

Medium

916

false

Word Subsets

word-subsets

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

true

false

66.547528

Easy

917

false

Reverse Only Letters

reverse-only-letters

['Two Pointers', 'String']

true

false

47.121795

Medium

918

false

Maximum Sum Circular Subarray

maximum-sum-circular-subarray

['Array', 'Divide and Conquer', 'Dynamic Programming', 'Queue', 'Monotonic Queue']

true

false

66.285234

Medium

919

false

Complete Binary Tree Inserter

complete-binary-tree-inserter

['Tree', 'Breadth-First Search', 'Design', 'Binary Tree']

true

false

59.966893

Hard

920

false

Number of Music Playlists

number-of-music-playlists

['Math', 'Dynamic Programming', 'Combinatorics']

true

false

74.68293

Medium

921

false

Minimum Add to Make Parentheses Valid

minimum-add-to-make-parentheses-valid

['String', 'Stack', 'Greedy']

true

false

70.953071

Easy

922

false

Sort Array By Parity II

sort-array-by-parity-ii

['Array', 'Two Pointers', 'Sorting']

true

45.721543

Medium

923

false

3Sum With Multiplicity

3sum-with-multiplicity

['Array', 'Hash Table', 'Two Pointers', 'Sorting', 'Counting']

true

false

42.224148

Hard

924

false

Minimize Malware Spread

minimize-malware-spread

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

true

false

32.437046

Easy

925

false

Long Pressed Name

long-pressed-name

['Two Pointers', 'String']

true

false

61.559627

Medium

926

false

Flip String to Monotone Increasing

flip-string-to-monotone-increasing

['String', 'Dynamic Programming']

true

false

40.590731

Hard

927

false

Three Equal Parts

three-equal-parts

['Array', 'Math']

true

false

44.442743

Hard

928

false

Minimize Malware Spread II

minimize-malware-spread-ii

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

true

false

67.501461

Easy

929

false

Unique Email Addresses

unique-email-addresses

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

true

false

65.352792

Medium

930

false

Binary Subarrays With Sum

binary-subarrays-with-sum

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

true

false

61.812587

Medium

931

false

Minimum Falling Path Sum

minimum-falling-path-sum

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

true

false

66.820388

Medium

932

false

Beautiful Array

beautiful-array

['Array', 'Math', 'Divide and Conquer']

true

false

77.284472

Easy

933

false

Number of Recent Calls

number-of-recent-calls

['Design', 'Queue', 'Data Stream']

true

false

58.401254

Medium

934

false

Shortest Bridge

shortest-bridge

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

true

false

60.99821

Medium

935

false

Knight Dialer

knight-dialer

['Dynamic Programming']

true

false

61.874424

Hard

936

false

Stamping The Sequence

stamping-the-sequence

['String', 'Stack', 'Greedy', 'Queue']

true

false

56.706811

Medium

937

false

Reorder Data in Log Files

reorder-data-in-log-files

['Array', 'String', 'Sorting']

true

false

87.380421

Easy

938

false

Range Sum of BST

range-sum-of-bst

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

true

54.86899

Medium

939

false

Minimum Area Rectangle

minimum-area-rectangle

['Array', 'Hash Table', 'Math', 'Geometry', 'Sorting']

true

false

43.437298

Hard

940

false

Distinct Subsequences II

distinct-subsequences-ii

['String', 'Dynamic Programming']

true

33.91261

Easy

941

false

Valid Mountain Array

valid-mountain-array

['Array']

true

false

79.792849

Easy

942

false

DI String Match

di-string-match

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

true

false

44.161772

Hard

943

false

Find the Shortest Superstring

find-the-shortest-superstring

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

true

false

74.715737

Easy

944

false

Delete Columns to Make Sorted

delete-columns-to-make-sorted

['Array', 'String']

true

false

60.265956

Medium

945

false

Minimum Increment to Make Array Unique

minimum-increment-to-make-array-unique

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

true

false

69.600582

Medium

946

false

Validate Stack Sequences

validate-stack-sequences

['Array', 'Stack', 'Simulation']

true

false

62.109197

Medium

947

false

Most Stones Removed with Same Row or Column

most-stones-removed-with-same-row-or-column

['Hash Table', 'Depth-First Search', 'Union Find', 'Graph']

true

false

59.093552

Medium

948

false

Bag of Tokens

bag-of-tokens

['Array', 'Two Pointers', 'Greedy', 'Sorting']

true

false

35.463833

Medium

949

false

Largest Time for Given Digits

largest-time-for-given-digits

['Array', 'String', 'Backtracking', 'Enumeration']

true

false

83.175455

Medium

950

false

Reveal Cards In Increasing Order

reveal-cards-in-increasing-order

['Array', 'Queue', 'Sorting', 'Simulation']

true

false

69.709017

Medium

951

false

Flip Equivalent Binary Trees

flip-equivalent-binary-trees

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

true

false

41.013657

Hard

952

false

Largest Component Size by Common Factor

largest-component-size-by-common-factor

['Array', 'Hash Table', 'Math', 'Union Find', 'Number Theory']

true

false

55.485487

Easy

953

false

Verifying an Alien Dictionary

verifying-an-alien-dictionary

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

true

false

39.329844

Medium

954

false

Array of Doubled Pairs

array-of-doubled-pairs

['Array', 'Hash Table', 'Greedy', 'Sorting']

true

false

35.474709

Medium

955

false

Delete Columns to Make Sorted II

delete-columns-to-make-sorted-ii

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

true

false

51.912751

Hard

956

false

Tallest Billboard

tallest-billboard

['Array', 'Dynamic Programming']

true

false

38.942962

Medium

957

false

Prison Cells After N Days

prison-cells-after-n-days

['Array', 'Hash Table', 'Math', 'Bit Manipulation']

true

false

58.135398

Medium

958

false

Check Completeness of a Binary Tree

check-completeness-of-a-binary-tree

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

true

false

77.644808

Medium

959

false

Regions Cut By Slashes

regions-cut-by-slashes

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

true

false

58.393489

Hard

960

false

Delete Columns to Make Sorted III

delete-columns-to-make-sorted-iii

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

true

false

77.328792

Easy

961

false

N-Repeated Element in Size 2N Array

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

['Array', 'Hash Table']

true

false

55.632116

Medium

962

false

Maximum Width Ramp

maximum-width-ramp

['Array', 'Two Pointers', 'Stack', 'Monotonic Stack']

true

false

55.424734

Medium

963

false

Minimum Area Rectangle II

minimum-area-rectangle-ii

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

true

false

48.433549

Hard

964

false

Least Operators to Express Number

least-operators-to-express-number

['Math', 'Dynamic Programming', 'Memoization']

true

false

71.900979

Easy

965

false

Univalued Binary Tree

univalued-binary-tree

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

true

false

51.502352

Medium

966

false

Vowel Spellchecker

vowel-spellchecker

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

true

false

58.604903

Medium

967

false

Numbers With Same Consecutive Differences

numbers-with-same-consecutive-differences

['Backtracking', 'Breadth-First Search']

true

false

47.024391

Hard

968

false

Binary Tree Cameras

binary-tree-cameras

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

true

false

71.044686

Medium

969

false

Pancake Sorting

pancake-sorting

['Array', 'Two Pointers', 'Greedy', 'Sorting']

true

false

43.917872

Medium

970

false

Powerful Integers

powerful-integers

['Hash Table', 'Math', 'Enumeration']

true

false

50.929121

Medium

971

false

Flip Binary Tree To Match Preorder Traversal

flip-binary-tree-to-match-preorder-traversal

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

true

false

44.470357

Hard

972

false

Equal Rational Numbers

equal-rational-numbers

['Math', 'String']

true

false

67.681118

Medium

973

false

K Closest Points to Origin

k-closest-points-to-origin

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

true

55.559222

Medium

974

false

Subarray Sums Divisible by K

subarray-sums-divisible-by-k

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

true

false

40.621479

Hard

975

false

Odd Even Jump

odd-even-jump

['Array', 'Dynamic Programming', 'Stack', 'Monotonic Stack', 'Ordered Set']

true

false

57.125393

Easy

976

false

Largest Perimeter Triangle

largest-perimeter-triangle

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

true

false

73.129364

Easy

977

false

Squares of a Sorted Array

squares-of-a-sorted-array

['Array', 'Two Pointers', 'Sorting']

true

47.852458

Medium

978

false

Longest Turbulent Subarray

longest-turbulent-subarray

['Array', 'Dynamic Programming', 'Sliding Window']

true

false

77.11491

Medium

979

false

Distribute Coins in Binary Tree

distribute-coins-in-binary-tree

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

true

false

82.243294

Hard

980

false

Unique Paths III

unique-paths-iii

['Array', 'Backtracking', 'Bit Manipulation', 'Matrix']

true

false

49.393764

Medium

981

false

Time Based Key-Value Store

time-based-key-value-store

['Hash Table', 'String', 'Binary Search', 'Design']

true

false

59.12237

Hard

982

false

Triples with Bitwise AND Equal To Zero

triples-with-bitwise-and-equal-to-zero

['Array', 'Hash Table', 'Bit Manipulation']

false

67.399504

Medium

983

false

Minimum Cost For Tickets

minimum-cost-for-tickets

['Array', 'Dynamic Programming']

true

false

44.387098

Medium

984

false

String Without AAA or BBB

string-without-aaa-or-bbb

['String', 'Greedy']

true

false

68.425196

Medium

985

false

Sum of Even Numbers After Queries

sum-of-even-numbers-after-queries

['Array', 'Simulation']

true

false

72.529394

Medium

986

false

Interval List Intersections

interval-list-intersections

['Array', 'Two Pointers', 'Line Sweep']

true

false

50.681343

Hard

987

false

Vertical Order Traversal of a Binary Tree

vertical-order-traversal-of-a-binary-tree

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

true

60.709675

Medium

988

false

Smallest String Starting From Leaf

smallest-string-starting-from-leaf

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

true

false

44.993705

Easy

989

false

Add to Array-Form of Integer

add-to-array-form-of-integer

['Array', 'Math']

true

false

50.905062

Medium

990

false

Satisfiability of Equality Equations

satisfiability-of-equality-equations

['Array', 'String', 'Union Find', 'Graph']

true

false

55.003515

Medium

991

false

Broken Calculator

broken-calculator

['Math', 'Greedy']

true

false

65.351532

Hard

992

false

Subarrays with K Different Integers

subarrays-with-k-different-integers

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

true

false

57.854906

Easy

993

false

Cousins in Binary Tree

cousins-in-binary-tree

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

true

false

56.168528

Medium

994

false

Rotting Oranges

rotting-oranges

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

true

false

62.141624

Hard

995

false

Minimum Number of K Consecutive Bit Flips

minimum-number-of-k-consecutive-bit-flips

['Array', 'Bit Manipulation', 'Queue', 'Sliding Window', 'Prefix Sum']

true

false

50.395917

Hard

996

false

Number of Squareful Arrays

number-of-squareful-arrays

['Array', 'Hash Table', 'Math', 'Dynamic Programming', 'Backtracking', 'Bit Manipulation', 'Bitmask']

true

false

49.908667

Easy

997

false

Find the Town Judge

find-the-town-judge

['Array', 'Hash Table', 'Graph']

true

false

68.922884

Medium

998

false

Maximum Binary Tree II

maximum-binary-tree-ii

['Tree', 'Binary Tree']

false

70.130958

Easy

999

false

Available Captures for Rook

available-captures-for-rook

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

false

44.100213

Hard

1,000

false

Minimum Cost to Merge Stones

minimum-cost-to-merge-stones

['Array', 'Dynamic Programming', 'Prefix Sum']

false