1240 |
* Tiling a Rectangle with the Fewest Squares |
46% |
Hard |
|
1239 |
* Maximum Length of a Concatenated String with Unique Characters |
38% |
Medium |
|
1238 |
* Circular Permutation in Binary Representation |
55% |
Medium |
|
1237 |
* Find Positive Integer Solution for a Given Equation |
65% |
Easy |
|
1235 |
* Maximum Profit in Job Scheduling |
44% |
Hard |
|
1234 |
* Replace the Substring for Balanced String |
29% |
Medium |
|
1233 |
* Remove Sub-Folders from the Filesystem |
53% |
Medium |
|
1232 |
* Check If It Is a Straight Line |
47% |
Easy |
|
1227 |
* Airplane Seat Assignment Probability |
61% |
Medium |
|
1224 |
* Maximum Equal Frequency |
31% |
Hard |
|
1223 |
* Dice Roll Simulation |
42% |
Medium |
|
1222 |
* Queens That Can Attack the King |
69% |
Medium |
|
1221 |
* Split a String in Balanced Strings |
78% |
Easy |
|
1220 |
* Count Vowels Permutation |
52% |
Hard |
|
1219 |
* Path with Maximum Gold |
60% |
Medium |
|
1218 |
* Longest Arithmetic Subsequence of Given Difference |
38% |
Medium |
|
1217 |
Play with Chips |
63% |
Easy |
|
1210 |
* Minimum Moves to Reach Target with Rotations |
43% |
Hard |
|
1209 |
* Remove All Adjacent Duplicates in String II |
57% |
Medium |
|
1208 |
* Get Equal Substrings Within Budget |
36% |
Medium |
|
1207 |
Unique Number of Occurrences |
72% |
Easy |
|
1206 |
* Design Skiplist |
59% |
Hard |
|
1203 |
* Sort Items by Groups Respecting Dependencies |
45% |
Hard |
|
1202 |
Smallest String With Swaps |
40% |
Medium |
|
1201 |
* Ugly Number III |
24% |
Medium |
|
1200 |
Minimum Absolute Difference |
66% |
Easy |
|
1192 |
* Critical Connections in a Network |
47% |
Hard |
|
1191 |
* K-Concatenation Maximum Sum |
24% |
Medium |
|
1190 |
Reverse Substrings Between Each Pair of Parentheses |
57% |
Medium |
❤ |
1189 |
Maximum Number of Balloons |
61% |
Easy |
|
1187 |
* Make Array Strictly Increasing |
39% |
Hard |
|
1186 |
Maximum Subarray Sum with One Deletion |
33% |
Medium |
❤ |
1185 |
Day of the Week |
64% |
Easy |
|
1184 |
Distance Between Bus Stops |
56% |
Easy |
|
1178 |
Number of Valid Words for Each Puzzle |
35% |
Hard |
❤ |
1177 |
Can Make Palindrome from Substring |
32% |
Medium |
❤ |
1175 |
Prime Arrangements |
50% |
Easy |
|
1172 |
Dinner Plate Stacks |
40% |
Hard |
❤ |
1171 |
Remove Zero Sum Consecutive Nodes from Linked List |
41% |
Medium |
|
1170 |
Compare Strings by Frequency of the Smallest Character |
58% |
Easy |
|
1169 |
Invalid Transactions |
28% |
Medium |
|
1163 |
Last Substring in Lexicographical Order |
30% |
Hard |
❤ |
1162 |
As Far from Land as Possible |
39% |
Medium |
|
1161 |
Maximum Level Sum of a Binary Tree |
70% |
Medium |
|
1160 |
Find Words That Can Be Formed by Characters |
66% |
Easy |
|
1157 |
Online Majority Element In Subarray |
33% |
Hard |
❤ |
1156 |
Swap For Longest Repeated Character Substring |
46% |
Medium |
|
1155 |
Number of Dice Rolls With Target Sum |
48% |
Medium |
❤ |
1154 |
Day of the Year |
49% |
Easy |
|
1147 |
Longest Chunked Palindrome Decomposition |
58% |
Hard |
|
1146 |
Snapshot Array |
33% |
Medium |
❤ |
1145 |
Binary Tree Coloring Game |
48% |
Medium |
❤ |
1144 |
Decrease Elements To Make Array Zigzag |
43% |
Medium |
|
1143 |
Longest Common Subsequence |
57% |
Medium |
|
1140 |
Stone Game II |
60% |
Medium |
❤ |
1139 |
Largest 1-Bordered Square |
44% |
Medium |
❤ |
1138 |
Alphabet Board Path |
44% |
Medium |
❤ |
1137 |
N-th Tribonacci Number |
58% |
Easy |
❤ |
1131 |
Maximum of Absolute Value Expression |
52% |
Medium |
❤ |
1130 |
Minimum Cost Tree From Leaf Values |
61% |
Medium |
❤ |
1129 |
Shortest Path with Alternating Colors |
36% |
Medium |
❤ |
1128 |
Number of Equivalent Domino Pairs |
45% |
Easy |
|
1125 |
Smallest Sufficient Team |
44% |
Hard |
❤ |
1124 |
Longest Well-Performing Interval |
31% |
Medium |
|
1123 |
Lowest Common Ancestor of Deepest Leaves |
64% |
Medium |
|
1122 |
Relative Sort Array |
66% |
Easy |
|
1111 |
Maximum Nesting Depth of Two Valid Parentheses Strings |
67% |
Medium |
|
1110 |
Delete Nodes And Return Forest |
64% |
Medium |
|
1109 |
Corporate Flight Bookings |
49% |
Medium |
|
1108 |
Defanging an IP Address |
84% |
Easy |
|
1106 |
Parsing A Boolean Expression |
57% |
Hard |
|
1105 |
Filling Bookcase Shelves |
56% |
Medium |
❤ |
1104 |
Path In Zigzag Labelled Binary Tree |
70% |
Medium |
|
1103 |
Distribute Candies to People |
59% |
Easy |
|
1096 |
Brace Expansion II |
59% |
Hard |
|
1095 |
Find in Mountain Array |
34% |
Hard |
|
1094 |
Car Pooling |
57% |
Medium |
|
1093 |
Statistics from a Large Sample |
44% |
Medium |
|
1092 |
Shortest Common Supersequence |
49% |
Hard |
❤ |
1091 |
Shortest Path in Binary Matrix |
36% |
Medium |
|
1090 |
Largest Values From Labels |
57% |
Medium |
|
1089 |
Duplicate Zeros |
58% |
Easy |
❤ |
1081 |
Smallest Subsequence of Distinct Characters |
44% |
Medium |
|
1080 |
Insufficient Nodes in Root to Leaf Paths |
44% |
Medium |
❤ |
1079 |
Letter Tile Possibilities |
74% |
Medium |
❤ |
1078 |
Occurrences After Bigram |
64% |
Easy |
|
1074 |
Number of Submatrices That Sum to Target |
58% |
Hard |
❤ |
1073 |
Adding Two Negabinary Numbers |
32% |
Medium |
❤ |
1072 |
Flip Columns For Maximum Number of Equal Rows |
59% |
Medium |
❤ |
1071 |
Greatest Common Divisor of Strings |
53% |
Easy |
❤ |
1054 |
Distant Barcodes |
40% |
Medium |
❤ |
1053 |
Previous Permutation With One Swap |
46% |
Medium |
|
1052 |
Grumpy Bookstore Owner |
53% |
Medium |
|
1051 |
Height Checker |
68% |
Easy |
|
1049 |
Last Stone Weight II |
41% |
Medium |
❤ |
1048 |
Longest String Chain |
51% |
Medium |
❤ |
1047 |
Remove All Adjacent Duplicates In String |
65% |
Easy |
|
1046 |
Last Stone Weight |
62% |
Easy |
|
1044 |
Longest Duplicate Substring |
23% |
Hard |
❤ |
1043 |
Partition Array for Maximum Sum |
62% |
Medium |
❤ |
1042 |
Flower Planting With No Adjacent |
47% |
Easy |
❤ |
1041 |
Robot Bounded In Circle |
46% |
Medium |
|
1040 |
Moving Stones Until Consecutive II |
49% |
Medium |
❤ |
1039 |
Minimum Score Triangulation of Polygon |
44% |
Medium |
❤ |
1038 |
Binary Search Tree to Greater Sum Tree |
78% |
Medium |
|
1037 |
Valid Boomerang |
37% |
Easy |
|
1036 |
Escape a Large Maze |
35% |
Hard |
|
1035 |
Uncrossed Lines |
52% |
Medium |
❤ |
1034 |
Coloring A Border |
43% |
Medium |
|
1033 |
Moving Stones Until Consecutive |
38% |
Easy |
|
1032 |
Stream of Characters |
45% |
Hard |
❤ |
1031 |
Maximum Sum of Two Non-Overlapping Subarrays |
55% |
Medium |
❤ |
1030 |
Matrix Cells in Distance Order |
64% |
Easy |
❤ |
1029 |
Two City Scheduling |
55% |
Easy |
|
1028 |
Recover a Tree From Preorder Traversal |
69% |
Hard |
❤ |
1027 |
Longest Arithmetic Sequence |
51% |
Medium |
❤ |
1026 |
Maximum Difference Between Node and Ancestor |
61% |
Medium |
❤ |
1025 |
Divisor Game |
65% |
Easy |
❤ |
1024 |
Video Stitching |
47% |
Medium |
❤ |
1023 |
Camelcase Matching |
54% |
Medium |
|
1022 |
Sum of Root To Leaf Binary Numbers |
61% |
Easy |
❤ |
1021 |
Remove Outermost Parentheses |
75% |
Easy |
|
1020 |
Number of Enclaves |
54% |
Medium |
|
1019 |
Next Greater Node In Linked List |
56% |
Medium |
❤ |
1018 |
Binary Prefix Divisible By 5 |
46% |
Easy |
|
1017 |
Convert to Base -2 |
57% |
Medium |
|
1016 |
Binary String With Substrings Representing 1 To N |
58% |
Medium |
|
1015 |
Smallest Integer Divisible by K |
30% |
Medium |
❤ |
1014 |
Best Sightseeing Pair |
51% |
Medium |
|
1013 |
Partition Array Into Three Parts With Equal Sum |
56% |
Easy |
|
1012 |
Numbers With Repeated Digits |
35% |
Hard |
❤ |
1011 |
Capacity To Ship Packages Within D Days |
55% |
Medium |
❤ |
1010 |
Pairs of Songs With Total Durations Divisible by 60 |
46% |
Easy |
|
1009 |
Complement of Base 10 Integer |
59% |
Easy |
❤ |
1008 |
Construct Binary Search Tree from Preorder Traversal |
73% |
Medium |
|
1007 |
Minimum Domino Rotations For Equal Row |
51% |
Medium |
|
1006 |
Clumsy Factorial |
53% |
Medium |
|
1005 |
Maximize Sum Of Array After K Negations |
50% |
Easy |
|
1004 |
Max Consecutive Ones III |
55% |
Medium |
❤ |
1003 |
Check If Word Is Valid After Substitutions |
53% |
Medium |
|
1002 |
Find Common Characters |
65% |
Easy |
|
1001 |
Grid Illumination |
34% |
Hard |
❤ |
1000 |
Minimum Cost to Merge Stones |
36% |
Hard |
❤ |
0999 |
Available Captures for Rook |
65% |
Easy |
|
0998 |
Maximum Binary Tree II |
61% |
Medium |
|
0997 |
Find the Town Judge |
49% |
Easy |
|
0996 |
Number of Squareful Arrays |
47% |
Hard |
❤ |
0995 |
Minimum Number of K Consecutive Bit Flips |
46% |
Hard |
|
0994 |
Rotting Oranges |
46% |
Easy |
|
0993 |
Cousins in Binary Tree |
51% |
Easy |
|
0992 |
Subarrays with K Different Integers |
45% |
Hard |
❤ |
0991 |
Broken Calculator |
42% |
Medium |
❤ |
0990 |
Satisfiability of Equality Equations |
41% |
Medium |
|
0989 |
Add to Array-Form of Integer |
43% |
Easy |
|
0988 |
Smallest String Starting From Leaf |
44% |
Medium |
|
0987 |
Vertical Order Traversal of a Binary Tree |
33% |
Medium |
|
0986 |
Interval List Intersections |
64% |
Medium |
❤ |
0985 |
Sum of Even Numbers After Queries |
62% |
Easy |
|
0984 |
String Without AAA or BBB |
34% |
Medium |
|
0983 |
Minimum Cost For Tickets |
57% |
Medium |
❤ |
0982 |
Triples with Bitwise AND Equal To Zero |
54% |
Hard |
❤ |
0981 |
Time Based Key-Value Store |
51% |
Medium |
|
0980 |
Unique Paths III |
71% |
Hard |
❤ |
0979 |
Distribute Coins in Binary Tree |
67% |
Medium |
❤ |
0978 |
Longest Turbulent Subarray |
45% |
Medium |
❤ |
0977 |
Squares of a Sorted Array |
71% |
Easy |
|
0976 |
Largest Perimeter Triangle |
57% |
Easy |
❤ |
0975 |
Odd Even Jump |
45% |
Hard |
❤ |
0974 |
Subarray Sums Divisible by K |
47% |
Medium |
❤ |
0973 |
K Closest Points to Origin |
61% |
Medium |
|
0972 |
Equal Rational Numbers |
40% |
Hard |
❤ |
0971 |
Flip Binary Tree To Match Preorder Traversal |
43% |
Medium |
❤ |
0970 |
Powerful Integers |
39% |
Easy |
|
0969 |
Pancake Sorting |
62% |
Medium |
|
0968 |
Binary Tree Cameras |
36% |
Hard |
|
0967 |
Numbers With Same Consecutive Differences |
38% |
Medium |
|
0966 |
Vowel Spellchecker |
44% |
Medium |
|
0965 |
Univalued Binary Tree |
66% |
Easy |
|
0964 |
Least Operators to Express Number |
41% |
Hard |
❤ |
0963 |
Minimum Area Rectangle II |
47% |
Medium |
|
0962 |
Maximum Width Ramp |
43% |
Medium |
❤ |
0961 |
N-Repeated Element in Size 2N Array |
72% |
Easy |
|
0960 |
Delete Columns to Make Sorted III |
52% |
Hard |
❤ |
0959 |
Regions Cut By Slashes |
63% |
Medium |
|
0958 |
Check Completeness of a Binary Tree |
50% |
Medium |
|
0957 |
Prison Cells After N Days |
38% |
Medium |
|
0956 |
Tallest Billboard |
38% |
Hard |
❤ |
0955 |
Delete Columns to Make Sorted II |
32% |
Medium |
❤ |
0954 |
Array of Doubled Pairs |
35% |
Medium |
|
0953 |
Verifying an Alien Dictionary |
55% |
Easy |
|
0952 |
Largest Component Size by Common Factor |
27% |
Hard |
❤ |
0951 |
Flip Equivalent Binary Trees |
65% |
Medium |
|
0950 |
Reveal Cards In Increasing Order |
72% |
Medium |
|
0949 |
Largest Time for Given Digits |
34% |
Easy |
❤ |
0948 |
Bag of Tokens |
39% |
Medium |
❤ |
0947 |
Most Stones Removed with Same Row or Column |
54% |
Medium |
❤ |
0946 |
Validate Stack Sequences |
58% |
Medium |
|
0945 |
Minimum Increment to Make Array Unique |
44% |
Medium |
❤ |
0944 |
Delete Columns to Make Sorted |
69% |
Easy |
|
0943 |
Find the Shortest Superstring |
40% |
Hard |
❤ |
0942 |
DI String Match |
69% |
Easy |
|
0941 |
Valid Mountain Array |
35% |
Easy |
|
0940 |
Distinct Subsequences II |
40% |
Hard |
❤ |
0939 |
Minimum Area Rectangle |
51% |
Medium |
❤ |
0938 |
Range Sum of BST |
78% |
Easy |
|
0937 |
Reorder Data in Log Files |
54% |
Easy |
|
0936 |
Stamping The Sequence |
35% |
Hard |
❤ |
0935 |
Knight Dialer |
42% |
Medium |
|
0934 |
Shortest Bridge |
45% |
Medium |
|
0933 |
Number of Recent Calls |
69% |
Easy |
|
0932 |
Beautiful Array |
54% |
Medium |
❤ |
0931 |
Minimum Falling Path Sum |
59% |
Medium |
|
0930 |
Binary Subarrays With Sum |
39% |
Medium |
|
0929 |
Unique Email Addresses |
68% |
Easy |
|
0928 |
Minimize Malware Spread II |
39% |
Hard |
|
0927 |
Three Equal Parts |
31% |
Hard |
|
0926 |
Flip String to Monotone Increasing |
51% |
Medium |
|
0925 |
Long Pressed Name |
44% |
Easy |
|
0924 |
Minimize Malware Spread |
40% |
Hard |
|
0923 |
3Sum With Multiplicity |
34% |
Medium |
❤ |
0922 |
Sort Array By Parity II |
67% |
Easy |
|
0921 |
Minimum Add to Make Parentheses Valid |
70% |
Medium |
❤ |
0920 |
Number of Music Playlists |
44% |
Hard |
❤ |
0919 |
Complete Binary Tree Inserter |
55% |
Medium |
❤ |
0918 |
Maximum Sum Circular Subarray |
33% |
Medium |
❤ |
0917 |
Reverse Only Letters |
56% |
Easy |
|
0916 |
Word Subsets |
45% |
Medium |
|
0915 |
Partition Array into Disjoint Intervals |
43% |
Medium |
❤ |
0914 |
X of a Kind in a Deck of Cards |
33% |
Easy |
|
0913 |
Cat and Mouse |
29% |
Hard |
❤ |
0912 |
Sort an Array |
62% |
Medium |
|
0911 |
Online Election |
48% |
Medium |
❤ |
0910 |
Smallest Range II |
24% |
Medium |
❤ |
0909 |
Snakes and Ladders |
36% |
Medium |
❤ |
0908 |
Smallest Range I |
64% |
Easy |
|
0907 |
Sum of Subarray Minimums |
29% |
Medium |
❤ |
0906 |
Super Palindromes |
30% |
Hard |
|
0905 |
Sort Array By Parity |
72% |
Easy |
|
0904 |
Fruit Into Baskets |
41% |
Medium |
❤ |
0903 |
Valid Permutations for DI Sequence |
46% |
Hard |
❤ |
0902 |
Numbers At Most N Given Digit Set |
29% |
Hard |
|
0901 |
Online Stock Span |
51% |
Medium |
❤ |
0900 |
RLE Iterator |
51% |
Medium |
|
0899 |
Orderly Queue |
49% |
Hard |
|
0898 |
Bitwise ORs of Subarrays |
35% |
Medium |
❤ |
0897 |
Increasing Order Search Tree |
66% |
Easy |
❤ |
0896 |
Monotonic Array |
56% |
Easy |
❤ |
0895 |
Maximum Frequency Stack |
58% |
Hard |
❤ |
0894 |
All Possible Full Binary Trees |
72% |
Medium |
|
0893 |
Groups of Special-Equivalent Strings |
63% |
Easy |
|
0892 |
Surface Area of 3D Shapes |
56% |
Easy |
|
0891 |
Sum of Subsequence Widths |
30% |
Hard |
|
0890 |
Find and Replace Pattern |
72% |
Medium |
|
0889 |
Construct Binary Tree from Preorder and Postorder Traversal |
62% |
Medium |
|
0888 |
Fair Candy Swap |
56% |
Easy |
|
0887 |
Super Egg Drop |
25% |
Hard |
|
0886 |
Possible Bipartition |
41% |
Medium |
|
0885 |
Spiral Matrix III |
66% |
Medium |
|
0884 |
Uncommon Words from Two Sentences |
61% |
Easy |
|
0883 |
Projection Area of 3D Shapes |
66% |
Easy |
|
0882 |
Reachable Nodes In Subdivided Graph |
39% |
Hard |
|
0881 |
Boats to Save People |
44% |
Medium |
|
0880 |
Decoded String at Index |
23% |
Medium |
|
0879 |
Profitable Schemes |
37% |
Hard |
❤ |
0878 |
Nth Magical Number |
26% |
Hard |
|
0877 |
Stone Game |
62% |
Medium |
|
0876 |
Middle of the Linked List |
65% |
Easy |
|
0875 |
Koko Eating Bananas |
47% |
Medium |
|
0874 |
Walking Robot Simulation |
33% |
Easy |
|
0873 |
Length of Longest Fibonacci Subsequence |
47% |
Medium |
|
0872 |
Leaf-Similar Trees |
64% |
Easy |
|
0871 |
Minimum Number of Refueling Stops |
30% |
Hard |
|
0870 |
Advantage Shuffle |
43% |
Medium |
|
0869 |
Reordered Power of 2 |
51% |
Medium |
|
0868 |
Binary Gap |
59% |
Easy |
|
0867 |
Transpose Matrix |
63% |
Easy |
|
0866 |
Prime Palindrome |
20% |
Medium |
❤ |
0865 |
Smallest Subtree with all the Deepest Nodes |
58% |
Medium |
|
0864 |
Shortest Path to Get All Keys |
38% |
Hard |
❤ |
0863 |
All Nodes Distance K in Binary Tree |
50% |
Medium |
❤ |
0862 |
Shortest Subarray with Sum at Least K |
22% |
Hard |
❤ |
0861 |
Score After Flipping Matrix |
70% |
Medium |
|
0860 |
Lemonade Change |
50% |
Easy |
|
0859 |
Buddy Strings |
27% |
Easy |
|
0858 |
Mirror Reflection |
52% |
Medium |
|
0857 |
Minimum Cost to Hire K Workers |
48% |
Hard |
❤ |
0856 |
Score of Parentheses |
57% |
Medium |
|
0855 |
Exam Room |
40% |
Medium |
|
0854 |
K-Similar Strings |
35% |
Hard |
❤ |
0853 |
Car Fleet |
41% |
Medium |
|
0852 |
Peak Index in a Mountain Array |
70% |
Easy |
❤ |
0851 |
Loud and Rich |
49% |
Medium |
❤ |
0850 |
Rectangle Area II |
46% |
Hard |
❤ |
0849 |
Maximize Distance to Closest Person |
41% |
Easy |
❤ |
0848 |
Shifting Letters |
42% |
Medium |
|
0847 |
Shortest Path Visiting All Nodes |
48% |
Hard |
❤ |
0846 |
Hand of Straights |
50% |
Medium |
❤ |
0845 |
Longest Mountain in Array |
35% |
Medium |
|
0844 |
Backspace String Compare |
46% |
Easy |
|
0843 |
Guess the Word |
45% |
Hard |
❤ |
0842 |
Split Array into Fibonacci Sequence |
35% |
Medium |
|
0841 |
Keys and Rooms |
61% |
Medium |
|
0840 |
Magic Squares In Grid |
36% |
Easy |
|
0839 |
Similar String Groups |
36% |
Hard |
❤ |
0838 |
Push Dominoes |
45% |
Medium |
❤ |
0837 |
New 21 Game |
32% |
Medium |
❤ |
0836 |
Rectangle Overlap |
47% |
Easy |
|
0835 |
Image Overlap |
54% |
Medium |
|
0834 |
Sum of Distances in Tree |
41% |
Hard |
❤ |
0833 |
Find And Replace in String |
48% |
Medium |
|
0832 |
Flipping an Image |
73% |
Easy |
|
0831 |
Masking Personal Information |
42% |
Medium |
|
0830 |
Positions of Large Groups |
48% |
Easy |
|
0829 |
Consecutive Numbers Sum |
35% |
Hard |
❤ |
0828 |
Unique Letter String |
41% |
Hard |
❤ |
0827 |
Making A Large Island |
43% |
Hard |
❤ |
0826 |
Most Profit Assigning Work |
36% |
Medium |
❤ |
0825 |
Friends Of Appropriate Ages |
39% |
Medium |
|
0824 |
Goat Latin |
59% |
Easy |
|
0823 |
Binary Trees With Factors |
33% |
Medium |
|
0822 |
Card Flipping Game |
41% |
Medium |
|
0821 |
Shortest Distance to a Character |
64% |
Easy |
|
0820 |
Short Encoding of Words |
48% |
Medium |
❤ |
0819 |
Most Common Word |
42% |
Easy |
|
0818 |
Race Car |
37% |
Hard |
❤ |
0817 |
Linked List Components |
55% |
Medium |
|
0816 |
Ambiguous Coordinates |
45% |
Medium |
|
0815 |
Bus Routes |
41% |
Hard |
❤ |
0814 |
Binary Tree Pruning |
72% |
Medium |
|
0813 |
Largest Sum of Averages |
47% |
Medium |
❤ |
0812 |
Largest Triangle Area |
56% |
Easy |
|
0811 |
Subdomain Visit Count |
66% |
Easy |
|
0810 |
Chalkboard XOR Game |
45% |
Hard |
❤ |
0809 |
Expressive Words |
45% |
Medium |
|
0808 |
Soup Servings |
38% |
Medium |
|
0807 |
Max Increase to Keep City Skyline |
82% |
Medium |
|
0806 |
Number of Lines To Write String |
63% |
Easy |
|
0805 |
Split Array With Same Average |
25% |
Hard |
❤ |
0804 |
Unique Morse Code Words |
75% |
Easy |
|
0803 |
Bricks Falling When Hit |
29% |
Hard |
❤ |
0802 |
Find Eventual Safe States |
45% |
Medium |
❤ |
0801 |
Minimum Swaps To Make Sequences Increasing |
36% |
Medium |
❤ |
0799 |
Champagne Tower |
34% |
Medium |
❤ |
0798 |
Smallest Rotation with Highest Score |
41% |
Hard |
❤ |
0797 |
All Paths From Source to Target |
72% |
Medium |
|
0796 |
Rotate String |
49% |
Easy |
|
0795 |
Number of Subarrays with Bounded Maximum |
44% |
Medium |
❤ |
0794 |
Valid Tic-Tac-Toe State |
31% |
Medium |
|
0793 |
Preimage Size of Factorial Zeroes Function |
39% |
Hard |
❤ |
0792 |
Number of Matching Subsequences |
45% |
Medium |
❤ |
0791 |
Custom Sort String |
63% |
Medium |
|
0790 |
Domino and Tromino Tiling |
37% |
Medium |
❤ |
0789 |
Escape The Ghosts |
56% |
Medium |
|
0788 |
Rotated Digits |
55% |
Easy |
|
0787 |
Cheapest Flights Within K Stops |
36% |
Medium |
❤ |
0786 |
K-th Smallest Prime Fraction |
41% |
Hard |
❤ |
0785 |
Is Graph Bipartite? |
45% |
Medium |
❤ |
0784 |
Letter Case Permutation |
59% |
Easy |
❤ |
0783 |
Minimum Distance Between BST Nodes |
51% |
Easy |
|
0782 |
Transform to Chessboard |
39% |
Hard |
|
0781 |
Rabbits in Forest |
52% |
Medium |
|
0780 |
Reaching Points |
28% |
Hard |
|
0779 |
K-th Symbol in Grammar |
37% |
Medium |
|
0778 |
Swim in Rising Water |
49% |
Hard |
|
0777 |
Swap Adjacent in LR String |
34% |
Medium |
|
0775 |
Global and Local Inversions |
40% |
Medium |
|
0773 |
Sliding Puzzle |
55% |
Hard |
|
0771 |
Jewels and Stones |
83% |
Easy |
|
0770 |
Basic Calculator IV |
46% |
Hard |
❤ |
0769 |
Max Chunks To Make Sorted |
52% |
Medium |
|
0768 |
Max Chunks To Make Sorted II |
46% |
Hard |
|
0767 |
Reorganize String |
44% |
Medium |
|
0766 |
Toeplitz Matrix |
62% |
Easy |
|
0765 |
Couples Holding Hands |
52% |
Hard |
|
0764 |
Largest Plus Sign |
44% |
Medium |
|
0763 |
Partition Labels |
72% |
Medium |
|
0762 |
Prime Number of Set Bits in Binary Representation |
60% |
Easy |
|
0761 |
Special Binary String |
53% |
Hard |
|
0757 |
Set Intersection Size At Least Two |
37% |
Hard |
|
0756 |
Pyramid Transition Matrix |
52% |
Medium |
❤ |
0754 |
Reach a Number |
33% |
Easy |
❤ |
0753 |
Cracking the Safe |
48% |
Hard |
❤ |
0752 |
Open the Lock |
47% |
Medium |
❤ |
0749 |
Contain Virus |
41% |
Hard |
|
0748 |
Shortest Completing Word |
55% |
Easy |
|
0747 |
Largest Number At Least Twice of Others |
40% |
Easy |
|
0746 |
Min Cost Climbing Stairs |
48% |
Easy |
|
0745 |
Prefix and Suffix Search |
32% |
Hard |
|
0744 |
Find Smallest Letter Greater Than Target |
44% |
Easy |
|
0743 |
Network Delay Time |
44% |
Medium |
|
0741 |
Cherry Pickup |
31% |
Hard |
|
0740 |
Delete and Earn |
47% |
Medium |
❤ |
0739 |
Daily Temperatures |
61% |
Medium |
❤ |
0738 |
Monotone Increasing Digits |
42% |
Medium |
|
0736 |
Parse Lisp Expression |
45% |
Hard |
❤ |
0735 |
Asteroid Collision |
39% |
Medium |
|
0733 |
Flood Fill |
52% |
Easy |
|
0732 |
My Calendar III |
57% |
Hard |
|
0731 |
My Calendar II |
46% |
Medium |
❤ |
0730 |
Count Different Palindromic Subsequences |
40% |
Hard |
❤ |
0729 |
My Calendar I |
48% |
Medium |
|
0728 |
Self Dividing Numbers |
71% |
Easy |
|
0726 |
Number of Atoms |
45% |
Hard |
❤ |
0725 |
Split Linked List in Parts |
50% |
Medium |
|
0724 |
Find Pivot Index |
42% |
Easy |
|
0722 |
Remove Comments |
32% |
Medium |
❤ |
0721 |
Accounts Merge |
43% |
Medium |
❤ |
0720 |
Longest Word in Dictionary |
46% |
Easy |
|
0719 |
Find K-th Smallest Pair Distance |
30% |
Hard |
❤ |
0718 |
Maximum Length of Repeated Subarray |
47% |
Medium |
❤ |
0717 |
1-bit and 2-bit Characters |
49% |
Easy |
|
0715 |
Range Module |
36% |
Hard |
|
0714 |
Best Time to Buy and Sell Stock with Transaction Fee |
52% |
Medium |
❤ |
0713 |
Subarray Product Less Than K |
37% |
Medium |
❤ |
0712 |
Minimum ASCII Delete Sum for Two Strings |
55% |
Medium |
❤ |
0710 |
Random Pick with Blacklist |
32% |
Hard |
❤ |
0709 |
To Lower Case |
77% |
Easy |
|
0707 |
Design Linked List |
20% |
Medium |
❤ |
0706 |
Design HashMap |
57% |
Easy |
|
0705 |
Design HashSet |
56% |
Easy |
|
0704 |
Binary Search |
49% |
Easy |
|
0703 |
Kth Largest Element in a Stream |
47% |
Easy |
|
0701 |
Insert into a Binary Search Tree |
77% |
Medium |
|
0700 |
Search in a Binary Search Tree |
69% |
Easy |
|
0699 |
Falling Squares |
40% |
Hard |
|
0698 |
Partition to K Equal Sum Subsets |
43% |
Medium |
❤ |
0697 |
Degree of an Array |
51% |
Easy |
|
0696 |
Count Binary Substrings |
54% |
Easy |
|
0695 |
Max Area of Island |
59% |
Medium |
❤ |
0693 |
Binary Number with Alternating Bits |
58% |
Easy |
|
0692 |
Top K Frequent Words |
47% |
Medium |
|
0691 |
Stickers to Spell Word |
40% |
Hard |
❤ |
0689 |
Maximum Sum of 3 Non-Overlapping Subarrays |
44% |
Hard |
|
0688 |
Knight Probability in Chessboard |
46% |
Medium |
|
0687 |
Longest Univalue Path |
34% |
Easy |
|
0686 |
Repeated String Match |
31% |
Easy |
❤ |
0685 |
Redundant Connection II |
31% |
Hard |
❤ |
0684 |
Redundant Connection |
54% |
Medium |
|
0682 |
Baseball Game |
61% |
Easy |
|
0680 |
Valid Palindrome II |
35% |
Easy |
|
0679 |
24 Game |
44% |
Hard |
❤ |
0678 |
Valid Parenthesis String |
33% |
Medium |
❤ |
0677 |
Map Sum Pairs |
52% |
Medium |
❤ |
0676 |
Implement Magic Dictionary |
52% |
Medium |
|
0675 |
Cut Off Trees for Golf Event |
32% |
Hard |
❤ |
0674 |
Longest Continuous Increasing Subsequence |
44% |
Easy |
|
0673 |
Number of Longest Increasing Subsequence |
34% |
Medium |
❤ |
0672 |
Bulb Switcher II |
50% |
Medium |
|
0671 |
Second Minimum Node In a Binary Tree |
43% |
Easy |
|
0670 |
Maximum Swap |
41% |
Medium |
❤ |
0669 |
Trim a Binary Search Tree |
61% |
Easy |
|
0668 |
Kth Smallest Number in Multiplication Table |
43% |
Hard |
|
0667 |
Beautiful Arrangement II |
52% |
Medium |
|
0665 |
Non-decreasing Array |
19% |
Easy |
|
0664 |
Strange Printer |
38% |
Hard |
❤ |
0662 |
Maximum Width of Binary Tree |
39% |
Medium |
|
0661 |
Image Smoother |
49% |
Easy |
|
0659 |
Split Array into Consecutive Subsequences |
42% |
Medium |
❤ |
0658 |
Find K Closest Elements |
39% |
Medium |
❤ |
0657 |
Robot Return to Origin |
72% |
Easy |
|
0655 |
Print Binary Tree |
52% |
Medium |
|
0654 |
Maximum Binary Tree |
77% |
Medium |
❤ |
0653 |
Two Sum IV - Input is a BST |
53% |
Easy |
|
0652 |
Find Duplicate Subtrees |
47% |
Medium |
|
0650 |
2 Keys Keyboard |
47% |
Medium |
|
0649 |
Dota2 Senate |
38% |
Medium |
❤ |
0648 |
Replace Words |
53% |
Medium |
|
0647 |
Palindromic Substrings |
58% |
Medium |
❤ |
0646 |
Maximum Length of Pair Chain |
49% |
Medium |
|
0645 |
Set Mismatch |
41% |
Easy |
❤ |
0643 |
Maximum Average Subarray I |
40% |
Easy |
|
0641 |
Design Circular Deque |
50% |
Medium |
❤ |
0640 |
Solve the Equation |
40% |
Medium |
|
0639 |
Decode Ways II |
25% |
Hard |
|
0638 |
Shopping Offers |
50% |
Medium |
❤ |
0637 |
Average of Levels in Binary Tree |
60% |
Easy |
|
0636 |
Exclusive Time of Functions |
49% |
Medium |
❤ |
0633 |
Sum of Square Numbers |
32% |
Easy |
|
0632 |
Smallest Range Covering Elements from K Lists |
49% |
Hard |
|
0630 |
Course Schedule III |
32% |
Hard |
❤ |
0629 |
K Inverse Pairs Array |
29% |
Hard |
|
0628 |
Maximum Product of Three Numbers |
46% |
Easy |
❤ |
0623 |
Add One Row to Tree |
47% |
Medium |
|
0622 |
Design Circular Queue |
41% |
Medium |
|
0621 |
Task Scheduler |
46% |
Medium |
❤ |
0617 |
Merge Two Binary Trees |
71% |
Easy |
|
0611 |
Valid Triangle Number |
46% |
Medium |
❤ |
0609 |
Find Duplicate File in System |
56% |
Medium |
|
0606 |
Construct String from Binary Tree |
52% |
Easy |
|
0605 |
Can Place Flowers |
31% |
Easy |
❤ |
0600 |
Non-negative Integers without Consecutive Ones |
33% |
Hard |
❤ |
0599 |
Minimum Index Sum of Two Lists |
48% |
Easy |
|
0598 |
Range Addition II |
49% |
Easy |
|
0594 |
Longest Harmonious Subsequence |
44% |
Easy |
|
0593 |
Valid Square |
41% |
Medium |
|
0592 |
Fraction Addition and Subtraction |
47% |
Medium |
|
0591 |
Tag Validator |
33% |
Hard |
❤ |
0587 |
Erect the Fence |
34% |
Hard |
❤ |
0583 |
Delete Operation for Two Strings |
45% |
Medium |
❤ |
0581 |
Shortest Unsorted Continuous Subarray |
30% |
Easy |
❤ |
0576 |
Out of Boundary Paths |
33% |
Medium |
❤ |
0575 |
Distribute Candies |
60% |
Easy |
|
0572 |
Subtree of Another Tree |
42% |
Easy |
❤ |
0567 |
Permutation in String |
39% |
Medium |
|
0566 |
Reshape the Matrix |
59% |
Easy |
|
0565 |
Array Nesting |
53% |
Medium |
|
0564 |
Find the Closest Palindrome |
19% |
Hard |
|
0563 |
Binary Tree Tilt |
47% |
Easy |
|
0561 |
Array Partition I |
70% |
Easy |
|
0560 |
Subarray Sum Equals K |
43% |
Medium |
❤ |
0557 |
Reverse Words in a String III |
65% |
Easy |
|
0556 |
Next Greater Element III |
30% |
Medium |
|
0554 |
Brick Wall |
48% |
Medium |
|
0553 |
Optimal Division |
55% |
Medium |
|
0552 |
Student Attendance Record II |
34% |
Hard |
❤ |
0551 |
Student Attendance Record I |
45% |
Easy |
|
0547 |
Friend Circles |
55% |
Medium |
❤ |
0546 |
Remove Boxes |
39% |
Hard |
❤ |
0543 |
Diameter of Binary Tree |
47% |
Easy |
|
0542 |
01 Matrix |
37% |
Medium |
❤ |
0541 |
Reverse String II |
46% |
Easy |
|
0540 |
Single Element in a Sorted Array |
57% |
Medium |
|
0539 |
Minimum Time Difference |
49% |
Medium |
|
0538 |
Convert BST to Greater Tree |
52% |
Easy |
|
0537 |
Complex Number Multiplication |
66% |
Medium |
|
0532 |
K-diff Pairs in an Array |
30% |
Easy |
|
0530 |
Minimum Absolute Difference in BST |
51% |
Easy |
❤ |
0529 |
Minesweeper |
54% |
Medium |
|
0528 |
Random Pick with Weight |
43% |
Medium |
|
0526 |
Beautiful Arrangement |
55% |
Medium |
❤ |
0525 |
Contiguous Array |
43% |
Medium |
❤ |
0524 |
Longest Word in Dictionary through Deleting |
46% |
Medium |
|
0523 |
Continuous Subarray Sum |
24% |
Medium |
❤ |
0522 |
Longest Uncommon Subsequence II |
33% |
Medium |
|
0521 |
Longest Uncommon Subsequence I |
56% |
Easy |
|
0520 |
Detect Capital |
52% |
Easy |
|
0519 |
Random Flip Matrix |
33% |
Medium |
|
0518 |
Coin Change 2 |
44% |
Medium |
❤ |
0517 |
Super Washing Machines |
37% |
Hard |
❤ |
0516 |
Longest Palindromic Subsequence |
49% |
Medium |
❤ |
0515 |
Find Largest Value in Each Tree Row |
58% |
Medium |
|
0514 |
Freedom Trail |
41% |
Hard |
|
0513 |
Find Bottom Left Tree Value |
59% |
Medium |
|
0509 |
Fibonacci Number |
66% |
Easy |
|
0508 |
Most Frequent Subtree Sum |
55% |
Medium |
|
0507 |
Perfect Number |
35% |
Easy |
|
0506 |
Relative Ranks |
49% |
Easy |
|
0504 |
Base 7 |
45% |
Easy |
|
0503 |
Next Greater Element II |
52% |
Medium |
❤ |
0502 |
IPO |
38% |
Hard |
|
0501 |
Find Mode in Binary Search Tree |
40% |
Easy |
❤ |
0500 |
Keyboard Row |
63% |
Easy |
|
0498 |
Diagonal Traverse |
46% |
Medium |
|
0497 |
Random Point in Non-overlapping Rectangles |
36% |
Medium |
|
0496 |
Next Greater Element I |
60% |
Easy |
|
0495 |
Teemo Attacking |
52% |
Medium |
|
0494 |
Target Sum |
45% |
Medium |
❤ |
0493 |
Reverse Pairs |
23% |
Hard |
|
0492 |
Construct the Rectangle |
48% |
Easy |
❤ |
0491 |
Increasing Subsequences |
43% |
Medium |
❤ |
0488 |
Zuma Game |
40% |
Hard |
❤ |
0486 |
Predict the Winner |
47% |
Medium |
|
0485 |
Max Consecutive Ones |
55% |
Easy |
|
0483 |
Smallest Good Base |
34% |
Hard |
❤ |
0482 |
License Key Formatting |
41% |
Easy |
|
0481 |
Magical String |
46% |
Medium |
|
0480 |
Sliding Window Median |
34% |
Hard |
❤ |
0479 |
Largest Palindrome Product |
27% |
Hard |
|
0478 |
Generate Random Point in a Circle |
37% |
Medium |
|
0477 |
Total Hamming Distance |
49% |
Medium |
❤ |
0476 |
Number Complement |
62% |
Easy |
|
0475 |
Heaters |
32% |
Easy |
|
0474 |
Ones and Zeroes |
40% |
Medium |
|
0473 |
Matchsticks to Square |
36% |
Medium |
❤ |
0472 |
Concatenated Words |
37% |
Hard |
|
0470 |
Implement Rand10() Using Rand7() |
45% |
Medium |
❤ |
0468 |
Validate IP Address |
21% |
Medium |
|
0467 |
Unique Substrings in Wraparound String |
34% |
Medium |
❤ |
0466 |
Count The Repetitions |
27% |
Hard |
❤ |
0464 |
Can I Win |
28% |
Medium |
❤ |
0463 |
Island Perimeter |
62% |
Easy |
|
0462 |
Minimum Moves to Equal Array Elements II |
52% |
Medium |
|
0461 |
Hamming Distance |
70% |
Easy |
|
0460 |
LFU Cache |
30% |
Hard |
|
0459 |
Repeated Substring Pattern |
40% |
Easy |
❤ |
0458 |
Poor Pigs |
46% |
Hard |
|
0457 |
Circular Array Loop |
28% |
Medium |
|
0456 |
132 Pattern |
27% |
Medium |
❤ |
0455 |
Assign Cookies |
48% |
Easy |
|
0454 |
4Sum II |
51% |
Medium |
|
0453 |
Minimum Moves to Equal Array Elements |
49% |
Easy |
|
0452 |
Minimum Number of Arrows to Burst Balloons |
47% |
Medium |
|
0451 |
Sort Characters By Frequency |
57% |
Medium |
|
0450 |
Delete Node in a BST |
40% |
Medium |
❤ |
0448 |
Find All Numbers Disappeared in an Array |
54% |
Easy |
|
0447 |
Number of Boomerangs |
50% |
Easy |
|
0446 |
Arithmetic Slices II - Subsequence |
31% |
Hard |
❤ |
0445 |
Add Two Numbers II |
51% |
Medium |
❤ |
0443 |
String Compression |
38% |
Easy |
❤ |
0442 |
Find All Duplicates in an Array |
62% |
Medium |
|
0441 |
Arranging Coins |
38% |
Easy |
|
0440 |
K-th Smallest in Lexicographical Order |
27% |
Hard |
❤ |
0438 |
Find All Anagrams in a String |
38% |
Medium |
|
0437 |
Path Sum III |
44% |
Easy |
❤ |
0436 |
Find Right Interval |
43% |
Medium |
|
0435 |
Non-overlapping Intervals |
41% |
Medium |
❤ |
0434 |
Number of Segments in a String |
37% |
Easy |
|
0433 |
Minimum Genetic Mutation |
39% |
Medium |
|
0432 |
All O`one Data Structure |
30% |
Hard |
❤ |
0424 |
Longest Repeating Character Replacement |
44% |
Medium |
❤ |
0423 |
Reconstruct Original Digits from English |
46% |
Medium |
|
0421 |
Maximum XOR of Two Numbers in an Array |
52% |
Medium |
❤ |
0420 |
Strong Password Checker |
16% |
Hard |
❤ |
0419 |
Battleships in a Board |
66% |
Medium |
|
0417 |
Pacific Atlantic Water Flow |
38% |
Medium |
|
0416 |
Partition Equal Subset Sum |
41% |
Medium |
❤ |
0415 |
Add Strings |
44% |
Easy |
|
0414 |
Third Maximum Number |
29% |
Easy |
|
0413 |
Arithmetic Slices |
56% |
Medium |
|
0412 |
Fizz Buzz |
60% |
Easy |
|
0410 |
Split Array Largest Sum |
43% |
Hard |
|
0409 |
Longest Palindrome |
48% |
Easy |
|
0407 |
Trapping Rain Water II |
40% |
Hard |
|
0406 |
Queue Reconstruction by Height |
61% |
Medium |
❤ |
0405 |
Convert a Number to Hexadecimal |
42% |
Easy |
|
0404 |
Sum of Left Leaves |
49% |
Easy |
|
0403 |
Frog Jump |
37% |
Hard |
❤ |
0402 |
Remove K Digits |
27% |
Medium |
❤ |
0401 |
Binary Watch |
45% |
Easy |
|
0400 |
Nth Digit |
30% |
Medium |
❤ |
0399 |
Evaluate Division |
49% |
Medium |
❤ |
0398 |
Random Pick Index |
51% |
Medium |
|
0397 |
Integer Replacement |
32% |
Medium |
❤ |
0396 |
Rotate Function |
35% |
Medium |
❤ |
0395 |
Longest Substring with At Least K Repeating Characters |
39% |
Medium |
|
0394 |
Decode String |
46% |
Medium |
|
0393 |
UTF-8 Validation |
36% |
Medium |
❤ |
0392 |
Is Subsequence |
47% |
Easy |
❤ |
0391 |
Perfect Rectangle |
28% |
Hard |
|
0390 |
Elimination Game |
43% |
Medium |
❤ |
0389 |
Find the Difference |
53% |
Easy |
|
0388 |
Longest Absolute File Path |
40% |
Medium |
|
0387 |
First Unique Character in a String |
50% |
Easy |
|
0386 |
Lexicographical Numbers |
48% |
Medium |
|
0385 |
Mini Parser |
32% |
Medium |
❤ |
0384 |
Shuffle an Array |
51% |
Medium |
❤ |
0383 |
Ransom Note |
50% |
Easy |
|
0382 |
Linked List Random Node |
50% |
Medium |
|
0381 |
Insert Delete GetRandom O(1) - Duplicates allowed |
32% |
Hard |
❤ |
0380 |
Insert Delete GetRandom O(1) |
44% |
Medium |
❤ |
0378 |
Kth Smallest Element in a Sorted Matrix |
51% |
Medium |
❤ |
0377 |
Combination Sum IV |
44% |
Medium |
|
0376 |
Wiggle Subsequence |
38% |
Medium |
❤ |
0375 |
Guess Number Higher or Lower II |
38% |
Medium |
|
0373 |
Find K Pairs with Smallest Sums |
34% |
Medium |
❤ |
0372 |
Super Pow |
35% |
Medium |
|
0371 |
Sum of Two Integers |
50% |
Easy |
❤ |
0368 |
Largest Divisible Subset |
35% |
Medium |
❤ |
0367 |
Valid Perfect Square |
40% |
Easy |
|
0365 |
Water and Jug Problem |
29% |
Medium |
❤ |
0363 |
Max Sum of Rectangle No Larger Than K |
35% |
Hard |
❤ |
0357 |
Count Numbers with Unique Digits |
47% |
Medium |
❤ |
0355 |
Design Twitter |
28% |
Medium |
❤ |
0354 |
Russian Doll Envelopes |
34% |
Hard |
❤ |
0352 |
Data Stream as Disjoint Intervals |
44% |
Hard |
|
0350 |
Intersection of Two Arrays II |
49% |
Easy |
❤ |
0349 |
Intersection of Two Arrays |
57% |
Easy |
|
0347 |
Top K Frequent Elements |
57% |
Medium |
|
0345 |
Reverse Vowels of a String |
42% |
Easy |
|
0344 |
Reverse String |
64% |
Easy |
|
0343 |
Integer Break |
48% |
Medium |
|
0342 |
Power of Four |
40% |
Easy |
|
0338 |
Counting Bits |
65% |
Medium |
|
0337 |
House Robber III |
49% |
Medium |
❤ |
0336 |
Palindrome Pairs |
32% |
Hard |
❤ |
0335 |
Self Crossing |
27% |
Hard |
|
0334 |
Increasing Triplet Subsequence |
39% |
Medium |
❤ |
0332 |
Reconstruct Itinerary |
33% |
Medium |
❤ |
0331 |
Verify Preorder Serialization of a Binary Tree |
39% |
Medium |
❤ |
0330 |
Patching Array |
33% |
Hard |
|
0329 |
Longest Increasing Path in a Matrix |
41% |
Hard |
❤ |
0328 |
Odd Even Linked List |
50% |
Medium |
❤ |
0327 |
Count of Range Sum |
33% |
Hard |
❤ |
0326 |
Power of Three |
41% |
Easy |
❤ |
0324 |
Wiggle Sort II |
28% |
Medium |
|
0322 |
Coin Change |
32% |
Medium |
❤ |
0321 |
Create Maximum Number |
25% |
Hard |
❤ |
0319 |
Bulb Switcher |
44% |
Medium |
❤ |
0318 |
Maximum Product of Word Lengths |
49% |
Medium |
❤ |
0316 |
Remove Duplicate Letters |
33% |
Hard |
❤ |
0315 |
Count of Smaller Numbers After Self |
39% |
Hard |
|
0313 |
Super Ugly Number |
42% |
Medium |
❤ |
0312 |
Burst Balloons |
48% |
Hard |
❤ |
0310 |
Minimum Height Trees |
30% |
Medium |
|
0309 |
Best Time to Buy and Sell Stock with Cooldown |
45% |
Medium |
❤ |
0307 |
Range Sum Query - Mutable |
30% |
Medium |
|
0306 |
Additive Number |
28% |
Medium |
|
0304 |
Range Sum Query 2D - Immutable |
34% |
Medium |
|
0303 |
Range Sum Query - Immutable |
40% |
Easy |
|
0301 |
Remove Invalid Parentheses |
40% |
Hard |
❤ |
0300 |
Longest Increasing Subsequence |
41% |
Medium |
❤ |
0299 |
Bulls and Cows |
40% |
Easy |
|
0295 |
Find Median from Data Stream |
39% |
Hard |
❤ |
0292 |
Nim Game |
55% |
Easy |
❤ |
0290 |
Word Pattern |
35% |
Easy |
|
0289 |
Game of Life |
48% |
Medium |
❤ |
0287 |
Find the Duplicate Number |
51% |
Medium |
❤ |
0283 |
Move Zeroes |
55% |
Easy |
|
0282 |
Expression Add Operators |
33% |
Hard |
❤ |
0279 |
Perfect Squares |
43% |
Medium |
❤ |
0275 |
H-Index II |
35% |
Medium |
❤ |
0274 |
H-Index |
34% |
Medium |
|
0273 |
Integer to English Words |
25% |
Hard |
❤ |
0268 |
Missing Number |
49% |
Easy |
|
0264 |
Ugly Number II |
37% |
Medium |
❤ |
0263 |
Ugly Number |
41% |
Easy |
|
0260 |
Single Number III |
58% |
Medium |
❤ |
0258 |
Add Digits |
54% |
Easy |
|
0257 |
Binary Tree Paths |
47% |
Easy |
|
0242 |
Valid Anagram |
53% |
Easy |
|
0241 |
Different Ways to Add Parentheses |
52% |
Medium |
|
0240 |
Search a 2D Matrix II |
41% |
Medium |
❤ |
0239 |
Sliding Window Maximum |
39% |
Hard |
❤ |
0238 |
Product of Array Except Self |
57% |
Medium |
|
0237 |
Delete Node in a Linked List |
56% |
Easy |
❤ |
0236 |
Lowest Common Ancestor of a Binary Tree |
40% |
Medium |
❤ |
0235 |
Lowest Common Ancestor of a Binary Search Tree |
46% |
Easy |
❤ |
0234 |
Palindrome Linked List |
37% |
Easy |
|
0233 |
Number of Digit One |
30% |
Hard |
❤ |
0232 |
Implement Queue using Stacks |
45% |
Easy |
|
0231 |
Power of Two |
42% |
Easy |
|
0230 |
Kth Smallest Element in a BST |
54% |
Medium |
|
0229 |
Majority Element II |
33% |
Medium |
❤ |
0228 |
Summary Ranges |
37% |
Medium |
|
0227 |
Basic Calculator II |
34% |
Medium |
|
0226 |
Invert Binary Tree |
60% |
Easy |
|
0225 |
Implement Stack using Queues |
41% |
Easy |
|
0224 |
Basic Calculator |
34% |
Hard |
|
0223 |
Rectangle Area |
36% |
Medium |
|
0222 |
Count Complete Tree Nodes |
38% |
Medium |
|
0221 |
Maximal Square |
34% |
Medium |
❤ |
0220 |
Contains Duplicate III |
20% |
Medium |
❤ |
0219 |
Contains Duplicate II |
36% |
Easy |
|
0218 |
The Skyline Problem |
32% |
Hard |
❤ |
0217 |
Contains Duplicate |
53% |
Easy |
|
0216 |
Combination Sum III |
53% |
Medium |
|
0215 |
Kth Largest Element in an Array |
50% |
Medium |
❤ |
0214 |
Shortest Palindrome |
28% |
Hard |
❤ |
0213 |
House Robber II |
35% |
Medium |
|
0212 |
Word Search II |
30% |
Hard |
❤ |
0211 |
Add and Search Word - Data structure design |
32% |
Medium |
❤ |
0210 |
Course Schedule II |
36% |
Medium |
|
0209 |
Minimum Size Subarray Sum |
35% |
Medium |
|
0208 |
Implement Trie (Prefix Tree) |
41% |
Medium |
❤ |
0207 |
Course Schedule |
39% |
Medium |
❤ |
0206 |
Reverse Linked List |
57% |
Easy |
|
0205 |
Isomorphic Strings |
38% |
Easy |
❤ |
0204 |
Count Primes |
30% |
Easy |
❤ |
0203 |
Remove Linked List Elements |
36% |
Easy |
|
0202 |
Happy Number |
47% |
Easy |
|
0201 |
Bitwise AND of Numbers Range |
36% |
Medium |
❤ |
0200 |
Number of Islands |
43% |
Medium |
|
0199 |
Binary Tree Right Side View |
50% |
Medium |
|
0198 |
House Robber |
41% |
Easy |
❤ |
0191 |
Number of 1 Bits |
45% |
Easy |
|
0190 |
Reverse Bits |
33% |
Easy |
|
0189 |
Rotate Array |
31% |
Easy |
|
0188 |
Best Time to Buy and Sell Stock IV |
27% |
Hard |
❤ |
0187 |
Repeated DNA Sequences |
37% |
Medium |
|
0179 |
Largest Number |
26% |
Medium |
❤ |
0174 |
Dungeon Game |
28% |
Hard |
❤ |
0173 |
Binary Search Tree Iterator |
51% |
Medium |
❤ |
0172 |
Factorial Trailing Zeroes |
37% |
Easy |
|
0171 |
Excel Sheet Column Number |
52% |
Easy |
|
0169 |
Majority Element |
54% |
Easy |
❤ |
0168 |
Excel Sheet Column Title |
29% |
Easy |
❤ |
0167 |
Two Sum II - Input array is sorted |
51% |
Easy |
|
0166 |
Fraction to Recurring Decimal |
20% |
Medium |
❤ |
0165 |
Compare Version Numbers |
25% |
Medium |
|
0164 |
Maximum Gap |
33% |
Hard |
|
0162 |
Find Peak Element |
42% |
Medium |
|
0160 |
Intersection of Two Linked Lists |
36% |
Easy |
|
0155 |
Min Stack |
39% |
Easy |
|
0154 |
Find Minimum in Rotated Sorted Array II |
39% |
Hard |
|
0153 |
Find Minimum in Rotated Sorted Array |
43% |
Medium |
|
0152 |
Maximum Product Subarray |
30% |
Medium |
❤ |
0150 |
Evaluate Reverse Polish Notation |
33% |
Medium |
|
0149 |
Max Points on a Line |
16% |
Hard |
❤ |
0148 |
Sort List |
37% |
Medium |
❤ |
0147 |
Insertion Sort List |
38% |
Medium |
❤ |
0146 |
LRU Cache |
28% |
Medium |
❤ |
0145 |
Binary Tree Postorder Traversal |
50% |
Hard |
|
0144 |
Binary Tree Preorder Traversal |
52% |
Medium |
❤ |
0143 |
Reorder List |
32% |
Medium |
❤ |
0142 |
Linked List Cycle II |
33% |
Medium |
❤ |
0141 |
Linked List Cycle |
38% |
Easy |
|
0140 |
Word Break II |
28% |
Hard |
❤ |
0139 |
Word Break |
37% |
Medium |
❤ |
0137 |
Single Number II |
47% |
Medium |
|
0136 |
Single Number |
61% |
Easy |
|
0135 |
Candy |
29% |
Hard |
|
0134 |
Gas Station |
35% |
Medium |
❤ |
0132 |
Palindrome Partitioning II |
28% |
Hard |
❤ |
0131 |
Palindrome Partitioning |
43% |
Medium |
❤ |
0130 |
Surrounded Regions |
24% |
Medium |
❤ |
0129 |
Sum Root to Leaf Numbers |
44% |
Medium |
|
0128 |
Longest Consecutive Sequence |
43% |
Hard |
|
0127 |
Word Ladder |
26% |
Medium |
❤ |
0126 |
Word Ladder II |
19% |
Hard |
❤ |
0125 |
Valid Palindrome |
32% |
Easy |
|
0124 |
Binary Tree Maximum Path Sum |
31% |
Hard |
❤ |
0123 |
Best Time to Buy and Sell Stock III |
35% |
Hard |
|
0122 |
Best Time to Buy and Sell Stock II |
53% |
Easy |
|
0121 |
Best Time to Buy and Sell Stock |
48% |
Easy |
|
0120 |
Triangle |
41% |
Medium |
❤ |
0119 |
Pascal's Triangle II |
45% |
Easy |
|
0118 |
Pascal's Triangle |
48% |
Easy |
|
0115 |
Distinct Subsequences |
36% |
Hard |
❤ |
0114 |
Flatten Binary Tree to Linked List |
44% |
Medium |
❤ |
0113 |
Path Sum II |
42% |
Medium |
|
0112 |
Path Sum |
39% |
Easy |
|
0111 |
Minimum Depth of Binary Tree |
36% |
Easy |
|
0110 |
Balanced Binary Tree |
41% |
Easy |
|
0109 |
Convert Sorted List to Binary Search Tree |
43% |
Medium |
|
0108 |
Convert Sorted Array to Binary Search Tree |
53% |
Easy |
|
0107 |
Binary Tree Level Order Traversal II |
48% |
Easy |
|
0106 |
Construct Binary Tree from Inorder and Postorder Traversal |
41% |
Medium |
❤ |
0105 |
Construct Binary Tree from Preorder and Inorder Traversal |
43% |
Medium |
❤ |
0104 |
Maximum Depth of Binary Tree |
62% |
Easy |
|
0103 |
Binary Tree Zigzag Level Order Traversal |
43% |
Medium |
|
0102 |
Binary Tree Level Order Traversal |
50% |
Medium |
|
0101 |
Symmetric Tree |
44% |
Easy |
❤ |
0100 |
Same Tree |
51% |
Easy |
|
0099 |
Recover Binary Search Tree |
36% |
Hard |
❤ |
0098 |
Validate Binary Search Tree |
26% |
Medium |
❤ |
0097 |
Interleaving String |
29% |
Hard |
❤ |
0096 |
Unique Binary Search Trees |
48% |
Medium |
|
0095 |
Unique Binary Search Trees II |
37% |
Medium |
❤ |
0094 |
Binary Tree Inorder Traversal |
59% |
Medium |
|
0093 |
Restore IP Addresses |
32% |
Medium |
❤ |
0092 |
Reverse Linked List II |
36% |
Medium |
|
0091 |
Decode Ways |
23% |
Medium |
|
0090 |
Subsets II |
44% |
Medium |
|
0089 |
Gray Code |
47% |
Medium |
|
0088 |
Merge Sorted Array |
37% |
Easy |
|
0087 |
Scramble String |
32% |
Hard |
❤ |
0086 |
Partition List |
38% |
Medium |
|
0085 |
Maximal Rectangle |
34% |
Hard |
❤ |
0084 |
Largest Rectangle in Histogram |
32% |
Hard |
|
0083 |
Remove Duplicates from Sorted List |
43% |
Easy |
|
0082 |
Remove Duplicates from Sorted List II |
34% |
Medium |
|
0081 |
Search in Rotated Sorted Array II |
32% |
Medium |
|
0080 |
Remove Duplicates from Sorted Array II |
41% |
Medium |
|
0079 |
Word Search |
32% |
Medium |
|
0078 |
Subsets |
55% |
Medium |
|
0077 |
Combinations |
50% |
Medium |
|
0076 |
Minimum Window Substring |
32% |
Hard |
|
0075 |
Sort Colors |
43% |
Medium |
|
0074 |
Search a 2D Matrix |
35% |
Medium |
|
0073 |
Set Matrix Zeroes |
41% |
Medium |
|
0072 |
Edit Distance |
39% |
Hard |
|
0071 |
Simplify Path |
30% |
Medium |
|
0070 |
Climbing Stairs |
45% |
Easy |
|
0069 |
Sqrt(x) |
32% |
Easy |
|
0068 |
Text Justification |
24% |
Hard |
|
0067 |
Add Binary |
41% |
Easy |
|
0066 |
Plus One |
41% |
Easy |
|
0065 |
Valid Number |
14% |
Hard |
|
0064 |
Minimum Path Sum |
49% |
Medium |
|
0063 |
Unique Paths II |
33% |
Medium |
|
0062 |
Unique Paths |
49% |
Medium |
|
0061 |
Rotate List |
28% |
Medium |
|
0060 |
Permutation Sequence |
34% |
Medium |
|
0059 |
Spiral Matrix II |
49% |
Medium |
|
0058 |
Length of Last Word |
32% |
Easy |
|
0057 |
Insert Interval |
32% |
Hard |
|
0056 |
Merge Intervals |
37% |
Medium |
|
0055 |
Jump Game |
32% |
Medium |
|
0054 |
Spiral Matrix |
31% |
Medium |
|
0053 |
Maximum Subarray |
44% |
Easy |
|
0052 |
N-Queens II |
54% |
Hard |
|
0051 |
N-Queens |
42% |
Hard |
|
0050 |
Pow(x, n) |
28% |
Medium |
|
0049 |
Group Anagrams |
50% |
Medium |
|
0048 |
Rotate Image |
51% |
Medium |
|
0047 |
Permutations II |
42% |
Medium |
|
0046 |
Permutations |
58% |
Medium |
|
0045 |
Jump Game II |
29% |
Hard |
|
0044 |
Wildcard Matching |
23% |
Hard |
|
0043 |
Multiply Strings |
31% |
Medium |
|
0042 |
Trapping Rain Water |
45% |
Hard |
|
0041 |
First Missing Positive |
30% |
Hard |
|
0040 |
Combination Sum II |
44% |
Medium |
|
0039 |
Combination Sum |
51% |
Medium |
|
0038 |
Count and Say |
42% |
Easy |
|
0037 |
Sudoku Solver |
39% |
Hard |
|
0036 |
Valid Sudoku |
45% |
Medium |
|
0035 |
Search Insert Position |
41% |
Easy |
|
0034 |
Find First and Last Position of Element in Sorted Array |
34% |
Medium |
|
0033 |
Search in Rotated Sorted Array |
33% |
Medium |
|
0032 |
Longest Valid Parentheses |
26% |
Hard |
|
0031 |
Next Permutation |
31% |
Medium |
|
0030 |
Substring with Concatenation of All Words |
24% |
Hard |
|
0029 |
Divide Two Integers |
16% |
Medium |
|
0028 |
Implement strStr() |
33% |
Easy |
|
0027 |
Remove Element |
45% |
Easy |
|
0026 |
Remove Duplicates from Sorted Array |
42% |
Easy |
|
0025 |
Reverse Nodes in k-Group |
38% |
Hard |
|
0024 |
Swap Nodes in Pairs |
46% |
Medium |
|
0023 |
Merge k Sorted Lists |
36% |
Hard |
|
0022 |
Generate Parentheses |
57% |
Medium |
|
0021 |
Merge Two Sorted Lists |
49% |
Easy |
|
0020 |
Valid Parentheses |
37% |
Easy |
|
0019 |
Remove Nth Node From End of List |
34% |
Medium |
|
0018 |
4Sum |
31% |
Medium |
|
0017 |
Letter Combinations of a Phone Number |
43% |
Medium |
|
0016 |
3Sum Closest |
45% |
Medium |
|
0015 |
3Sum |
25% |
Medium |
|
0014 |
Longest Common Prefix |
34% |
Easy |
|
0013 |
Roman to Integer |
53% |
Easy |
|
0012 |
Integer to Roman |
52% |
Medium |
|
0011 |
Container With Most Water |
47% |
Medium |
|
0010 |
Regular Expression Matching |
25% |
Hard |
|
0009 |
Palindrome Number |
45% |
Easy |
|
0008 |
String to Integer (atoi) |
14% |
Medium |
|
0007 |
Reverse Integer |
25% |
Easy |
|
0006 |
ZigZag Conversion |
33% |
Medium |
|
0005 |
Longest Palindromic Substring |
28% |
Medium |
|
0004 |
Median of Two Sorted Arrays |
27% |
Hard |
|
0003 |
Longest Substring Without Repeating Characters |
29% |
Medium |
|
0002 |
Add Two Numbers |
32% |
Medium |
|
0001 |
Two Sum |
44% |
Easy |
|