https://github.com/warycat/rustgym
Leetcode Solutions in Rust, Advent of Code Solutions in Rust and more
https://github.com/warycat/rustgym
advent-of-code algorithm graph hackerrank hackerrank-solutions interview interview-practice interview-preparation interview-questions leetcode leetcode-rust leetcode-solutions macros rust solutions trie tutorial
Last synced: about 1 year ago
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Leetcode Solutions in Rust, Advent of Code Solutions in Rust and more
- Host: GitHub
- URL: https://github.com/warycat/rustgym
- Owner: warycat
- License: mit
- Created: 2019-06-26T04:14:32.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2024-12-31T08:14:39.000Z (over 1 year ago)
- Last Synced: 2025-03-23T07:19:54.631Z (about 1 year ago)
- Topics: advent-of-code, algorithm, graph, hackerrank, hackerrank-solutions, interview, interview-practice, interview-preparation, interview-questions, leetcode, leetcode-rust, leetcode-solutions, macros, rust, solutions, trie, tutorial
- Language: Rust
- Homepage: https://abao.ai
- Size: 5.6 MB
- Stars: 917
- Watchers: 19
- Forks: 84
- Open Issues: 13
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-rust - Rust Gym - A big collection of coding interview problems solved in Rust. (Resources / Web programming)
- awesome-rust-cn - Rust Gym - 用Rust解决的编码面试问题大集合. (资源 Resources / 网络编程 Web programming)
- awesome-leetcode - warycat/rustgym
- awesome-rust - Rust Gym
- fucking-awesome-rust - Rust Gym - A big collection of coding interview problems solved in Rust. (Resources / Web programming)
- awesome-rust - Rust Gym - A big collection of coding interview problems solved in Rust. (Resources / Web programming)
- awesome-rust-with-stars - Rust Gym - 12-31 | (Resources / Web programming)
README
# [RUST GYM](http://rustgym.com) Rust Solutions [](https://docs.rs/rustgym) [](https://github.com/warycat/rustgym/actions)
## [Leetcode Solutions in Rust](#leetcode)
## [AdventOfCode Solutions in Rust](#adventofcode)
## [Google Solutions in Rust](#google)
This project demonstrates how to create **Data Structures** and to implement **Algorithms** using programming language **Rust**
All the solutions here are crafted with love and their performance beats 99% of other solutions on the leetcode website. Tutorial videos will be added later.
### Please subscribe to our [RUST GYM Youtube Channel](https://www.youtube.com/channel/UCV9HzRLPKjI8SttaIYOygsw) for future videos.
Data Structures
- Stack & Queue ( Vec, VecDeque )
- Linked List ( Option> )
- Hash Tables ( HashMap, HashSet )
- Tree Tables ( BTreeMap, BTreeSet )
- Binary Search Tree ( Option>> )
- Binary Heaps & Priority Queue ( BinaryHeap )
- Graphs ( Vec> )
- Union Find ( UnionFind )
- Trie ( Trie )
Algorithms
- Bit Manipulation & Numbers
- Stability in Sorting
- Heapsort
- Binary Search
- Kth Smallest Elements
- Permutations
- Subsets
- BFS Graph
- DFS Graph
- Dijkstra’s Algorithm
- Tree Traversals
- BFS
- DFS
- in-order
- pre-order
- post-order
- Topological Sort
- Detect cycle in an undirected graph
- Detect a cycle in a directed graph
- Count connected components in a graph
- Find strongly connected components in a graph
id
Leetcode
Level
1
Two Sum
Easy
9
Palindrome Number
Easy
13
Roman to Integer
Easy
14
Longest Common Prefix
Easy
20
Valid Parentheses
Easy
21
Merge Two Sorted Lists
Easy
26
Remove Duplicates from Sorted Array
Easy
27
Remove Element
Easy
28
Implement strStr()
Easy
35
Search Insert Position
Easy
53
Maximum Subarray
Easy
58
Length of Last Word
Easy
66
Plus One
Easy
67
Add Binary
Easy
69
Sqrt(x)
Easy
70
Climbing Stairs
Easy
83
Remove Duplicates from Sorted List
Easy
88
Merge Sorted Array
Easy
94
Binary Tree Inorder Traversal
Easy
100
Same Tree
Easy
101
Symmetric Tree
Easy
104
Maximum Depth of Binary Tree
Easy
108
Convert Sorted Array to Binary Search Tree
Easy
110
Balanced Binary Tree
Easy
111
Minimum Depth of Binary Tree
Easy
112
Path Sum
Easy
118
Pascal's Triangle
Easy
119
Pascal's Triangle II
Easy
121
Best Time to Buy and Sell Stock
Easy
125
Valid Palindrome
Easy
136
Single Number
Easy
141
Linked List Cycle
Easy
144
Binary Tree Preorder Traversal
Easy
145
Binary Tree Postorder Traversal
Easy
155
Min Stack
Easy
157
Read N Characters Given Read4
Easy
160
Intersection of Two Linked Lists
Easy
163
Missing Ranges
Easy
167
Two Sum II - Input Array Is Sorted
Easy
168
Excel Sheet Column Title
Easy
169
Majority Element
Easy
170
Two Sum III - Data structure design
Easy
171
Excel Sheet Column Number
Easy
190
Reverse Bits
Easy
191
Number of 1 Bits
Easy
202
Happy Number
Easy
203
Remove Linked List Elements
Easy
205
Isomorphic Strings
Easy
206
Reverse Linked List
Easy
217
Contains Duplicate
Easy
219
Contains Duplicate II
Easy
225
Implement Stack using Queues
Easy
226
Invert Binary Tree
Easy
228
Summary Ranges
Easy
231
Power of Two
Easy
232
Implement Queue using Stacks
Easy
234
Palindrome Linked List
Easy
235
Lowest Common Ancestor of a Binary Search Tree
Easy
237
Delete Node in a Linked List
Easy
242
Valid Anagram
Easy
243
Shortest Word Distance
Easy
246
Strobogrammatic Number
Easy
252
Meeting Rooms
Easy
257
Binary Tree Paths
Easy
258
Add Digits
Easy
263
Ugly Number
Easy
266
Palindrome Permutation
Easy
268
Missing Number
Easy
270
Closest Binary Search Tree Value
Easy
278
First Bad Version
Easy
283
Move Zeroes
Easy
290
Word Pattern
Easy
292
Nim Game
Easy
293
Flip Game
Easy
303
Range Sum Query - Immutable
Easy
326
Power of Three
Easy
338
Counting Bits
Easy
342
Power of Four
Easy
344
Reverse String
Easy
345
Reverse Vowels of a String
Easy
346
Moving Average from Data Stream
Easy
349
Intersection of Two Arrays
Easy
350
Intersection of Two Arrays II
Easy
359
Logger Rate Limiter
Easy
367
Valid Perfect Square
Easy
374
Guess Number Higher or Lower
Easy
383
Ransom Note
Easy
387
First Unique Character in a String
Easy
389
Find the Difference
Easy
392
Is Subsequence
Easy
401
Binary Watch
Easy
404
Sum of Left Leaves
Easy
405
Convert a Number to Hexadecimal
Easy
408
Valid Word Abbreviation
Easy
409
Longest Palindrome
Easy
412
Fizz Buzz
Easy
414
Third Maximum Number
Easy
415
Add Strings
Easy
422
Valid Word Square
Easy
434
Number of Segments in a String
Easy
441
Arranging Coins
Easy
448
Find All Numbers Disappeared in an Array
Easy
455
Assign Cookies
Easy
459
Repeated Substring Pattern
Easy
461
Hamming Distance
Easy
463
Island Perimeter
Easy
476
Number Complement
Easy
482
License Key Formatting
Easy
485
Max Consecutive Ones
Easy
492
Construct the Rectangle
Easy
495
Teemo Attacking
Easy
496
Next Greater Element I
Easy
500
Keyboard Row
Easy
501
Find Mode in Binary Search Tree
Easy
504
Base 7
Easy
506
Relative Ranks
Easy
507
Perfect Number
Easy
509
Fibonacci Number
Easy
520
Detect Capital
Easy
521
Longest Uncommon Subsequence I
Easy
530
Minimum Absolute Difference in BST
Easy
541
Reverse String II
Easy
543
Diameter of Binary Tree
Easy
551
Student Attendance Record I
Easy
557
Reverse Words in a String III
Easy
559
Maximum Depth of N-ary Tree
Easy
561
Array Partition I
Easy
563
Binary Tree Tilt
Easy
566
Reshape the Matrix
Easy
572
Subtree of Another Tree
Easy
575
Distribute Candies
Easy
589
N-ary Tree Preorder Traversal
Easy
590
N-ary Tree Postorder Traversal
Easy
594
Longest Harmonious Subsequence
Easy
598
Range Addition II
Easy
599
Minimum Index Sum of Two Lists
Easy
604
Design Compressed String Iterator
Easy
605
Can Place Flowers
Easy
606
Construct String from Binary Tree
Easy
617
Merge Two Binary Trees
Easy
628
Maximum Product of Three Numbers
Easy
637
Average of Levels in Binary Tree
Easy
643
Maximum Average Subarray I
Easy
645
Set Mismatch
Easy
653
Two Sum IV - Input is a BST
Easy
657
Robot Return to Origin
Easy
661
Image Smoother
Easy
671
Second Minimum Node In a Binary Tree
Easy
674
Longest Continuous Increasing Subsequence
Easy
680
Valid Palindrome II
Easy
682
Baseball Game
Easy
693
Binary Number with Alternating Bits
Easy
696
Count Binary Substrings
Easy
697
Degree of an Array
Easy
700
Search in a Binary Search Tree
Easy
703
Kth Largest Element in a Stream
Easy
704
Binary Search
Easy
705
Design HashSet
Easy
706
Design HashMap
Easy
709
To Lower Case
Easy
716
Max Stack
Easy
717
1-bit and 2-bit Characters
Easy
724
Find Pivot Index
Easy
728
Self Dividing Numbers
Easy
733
Flood Fill
Easy
734
Sentence Similarity
Easy
744
Find Smallest Letter Greater Than Target
Easy
746
Min Cost Climbing Stairs
Easy
747
Largest Number At Least Twice of Others
Easy
748
Shortest Completing Word
Easy
760
Find Anagram Mappings
Easy
762
Prime Number of Set Bits in Binary Representation
Easy
766
Toeplitz Matrix
Easy
771
Jewels and Stones
Easy
783
Minimum Distance Between BST Nodes
Easy
796
Rotate String
Easy
800
Similar RGB Color
Easy
804
Unique Morse Code Words
Easy
806
Number of Lines To Write String
Easy
812
Largest Triangle Area
Easy
819
Most Common Word
Easy
821
Shortest Distance to a Character
Easy
824
Goat Latin
Easy
830
Positions of Large Groups
Easy
832
Flipping an Image
Easy
836
Rectangle Overlap
Easy
844
Backspace String Compare
Easy
852
Peak Index in a Mountain Array
Easy
859
Buddy Strings
Easy
860
Lemonade Change
Easy
867
Transpose Matrix
Easy
868
Binary Gap
Easy
872
Leaf-Similar Trees
Easy
876
Middle of the Linked List
Easy
883
Projection Area of 3D Shapes
Easy
884
Uncommon Words from Two Sentences
Easy
888
Fair Candy Swap
Easy
892
Surface Area of 3D Shapes
Easy
896
Monotonic Array
Easy
897
Increasing Order Search Tree
Easy
905
Sort Array By Parity
Easy
908
Smallest Range I
Easy
914
X of a Kind in a Deck of Cards
Easy
917
Reverse Only Letters
Easy
922
Sort Array By Parity II
Easy
925
Long Pressed Name
Easy
929
Unique Email Addresses
Easy
933
Number of Recent Calls
Easy
937
Reorder Data in Log Files
Easy
938
Range Sum of BST
Easy
941
Valid Mountain Array
Easy
942
DI String Match
Easy
944
Delete Columns to Make Sorted
Easy
953
Verifying an Alien Dictionary
Easy
961
N-Repeated Element in Size 2N Array
Easy
965
Univalued Binary Tree
Easy
976
Largest Perimeter Triangle
Easy
977
Squares of a Sorted Array
Easy
989
Add to Array-Form of Integer
Easy
993
Cousins in Binary Tree
Easy
997
Find the Town Judge
Easy
999
Available Captures for Rook
Easy
1002
Find Common Characters
Easy
1005
Maximize Sum Of Array After K Negations
Easy
1009
Complement of Base 10 Integer
Easy
1013
Partition Array Into Three Parts With Equal Sum
Easy
1018
Binary Prefix Divisible By 5
Easy
1021
Remove Outermost Parentheses
Easy
1022
Sum of Root To Leaf Binary Numbers
Easy
1025
Divisor Game
Easy
1030
Matrix Cells in Distance Order
Easy
1037
Valid Boomerang
Easy
1046
Last Stone Weight
Easy
1047
Remove All Adjacent Duplicates In String
Easy
1051
Height Checker
Easy
1056
Confusing Number
Easy
1064
Fixed Point
Easy
1065
Index Pairs of a String
Easy
1071
Greatest Common Divisor of Strings
Easy
1078
Occurrences After Bigram
Easy
1085
Sum of Digits in the Minimum Number
Easy
1086
High Five
Easy
1089
Duplicate Zeros
Easy
1099
Two Sum Less Than K
Easy
1103
Distribute Candies to People
Easy
1108
Defanging an IP Address
Easy
1114
Print in Order
Easy
1118
Number of Days in a Month
Easy
1119
Remove Vowels from a String
Easy
1122
Relative Sort Array
Easy
1128
Number of Equivalent Domino Pairs
Easy
1133
Largest Unique Number
Easy
1134
Armstrong Number
Easy
1137
N-th Tribonacci Number
Easy
1150
Check If a Number Is Majority Element in a Sorted Array
Easy
1154
Day of the Year
Easy
1160
Find Words That Can Be Formed by Characters
Easy
1165
Single-Row Keyboard
Easy
1175
Prime Arrangements
Easy
1176
Diet Plan Performance
Easy
1180
Count Substrings with Only One Distinct Letter
Easy
1184
Distance Between Bus Stops
Easy
1185
Day of the Week
Easy
1189
Maximum Number of Balloons
Easy
1196
How Many Apples Can You Put into the Basket
Easy
1200
Minimum Absolute Difference
Easy
1207
Unique Number of Occurrences
Easy
1213
Intersection of Three Sorted Arrays
Easy
1217
Minimum Cost to Move Chips to The Same Position
Easy
1221
Split a String in Balanced Strings
Easy
1228
Missing Number In Arithmetic Progression
Easy
1232
Check If It Is a Straight Line
Easy
1243
Array Transformation
Easy
1252
Cells with Odd Values in a Matrix
Easy
1260
Shift 2D Grid
Easy
1266
Minimum Time Visiting All Points
Easy
1271
Hexspeak
Easy
1275
Find Winner on a Tic Tac Toe Game
Easy
1279
Traffic Light Controlled Intersection
Easy
1281
Subtract the Product and Sum of Digits of an Integer
Easy
1287
Element Appearing More Than 25% In Sorted Array
Easy
1290
Convert Binary Number in a Linked List to Integer
Easy
1295
Find Numbers with Even Number of Digits
Easy
1299
Replace Elements with Greatest Element on Right Side
Easy
1304
Find N Unique Integers Sum up to Zero
Easy
1309
Decrypt String from Alphabet to Integer Mapping
Easy
1313
Decompress Run-Length Encoded List
Easy
1317
Convert Integer to the Sum of Two No-Zero Integers
Easy
1323
Maximum 69 Number
Easy
1331
Rank Transform of an Array
Easy
1332
Remove Palindromic Subsequences
Easy
1337
The K Weakest Rows in a Matrix
Easy
1342
Number of Steps to Reduce a Number to Zero
Easy
1346
Check If N and Its Double Exist
Easy
1351
Count Negative Numbers in a Sorted Matrix
Easy
1356
Sort Integers by The Number of 1 Bits
Easy
1360
Number of Days Between Two Dates
Easy
1365
How Many Numbers Are Smaller Than the Current Number
Easy
1370
Increasing Decreasing String
Easy
1374
Generate a String With Characters That Have Odd Counts
Easy
1380
Lucky Numbers in a Matrix
Easy
1385
Find the Distance Value Between Two Arrays
Easy
1389
Create Target Array in the Given Order
Easy
1394
Find Lucky Integer in an Array
Easy
1399
Count Largest Group
Easy
1403
Minimum Subsequence in Non-Increasing Order
Easy
1408
String Matching in an Array
Easy
1413
Minimum Value to Get Positive Step by Step Sum
Easy
1417
Reformat The String
Easy
1422
Maximum Score After Splitting a String
Easy
1426
Counting Elements
Easy
1427
Perform String Shifts
Easy
1431
Kids With the Greatest Number of Candies
Easy
1436
Destination City
Easy
1437
Check If All 1's Are at Least Length K Places Away
Easy
1441
Build an Array With Stack Operations
Easy
1446
Consecutive Characters
Easy
1450
Number of Students Doing Homework at a Given Time
Easy
1455
Check If a Word Occurs As a Prefix of Any Word in a Sentence
Easy
1460
Make Two Arrays Equal by Reversing Sub-arrays
Easy
1464
Maximum Product of Two Elements in an Array
Easy
1469
Find All The Lonely Nodes
Easy
1470
Shuffle the Array
Easy
1474
Delete N Nodes After M Nodes of a Linked List
Easy
1475
Final Prices With a Special Discount in a Shop
Easy
1480
Running Sum of 1d Array
Easy
1486
XOR Operation in an Array
Easy
1491
Average Salary Excluding the Minimum and Maximum Salary
Easy
1496
Path Crossing
Easy
1502
Can Make Arithmetic Progression From Sequence
Easy
1507
Reformat Date
Easy
1512
Number of Good Pairs
Easy
1518
Water Bottles
Easy
1523
Count Odd Numbers in an Interval Range
Easy
1528
Shuffle String
Easy
1534
Count Good Triplets
Easy
1539
Kth Missing Positive Number
Easy
1544
Make The String Great
Easy
1550
Three Consecutive Odds
Easy
1556
Thousand Separator
Easy
1560
Most Visited Sector in a Circular Track
Easy
1566
Detect Pattern of Length M Repeated K or More Times
Easy
1572
Matrix Diagonal Sum
Easy
1576
Replace All ?'s to Avoid Consecutive Repeating Characters
Easy
1582
Special Positions in a Binary Matrix
Easy
1588
Sum of All Odd Length Subarrays
Easy
1592
Rearrange Spaces Between Words
Easy
1598
Crawler Log Folder
Easy
1603
Design Parking System
Easy
1608
Special Array With X Elements Greater Than or Equal X
Easy
1614
Maximum Nesting Depth of the Parentheses
Easy
1619
Mean of Array After Removing Some Elements
Easy
1624
Largest Substring Between Two Equal Characters
Easy
1629
Slowest Key
Easy
1636
Sort Array by Increasing Frequency
Easy
1640
Check Array Formation Through Concatenation
Easy
1646
Get Maximum in Generated Array
Easy
1652
Defuse the Bomb
Easy
1656
Design an Ordered Stream
Easy
1662
Check If Two String Arrays are Equivalent
Easy
1668
Maximum Repeating Substring
Easy
1672
Richest Customer Wealth
Easy
1678
Goal Parser Interpretation
Easy
1684
Count the Number of Consistent Strings
Easy
1688
Count of Matches in Tournament
Easy
1694
Reformat Phone Number
Easy
1700
Number of Students Unable to Eat Lunch
Easy
1704
Determine if String Halves Are Alike
Easy
1708
Largest Subarray Length K
Easy
1710
Maximum Units on a Truck
Easy
1716
Calculate Money in Leetcode Bank
Easy
1720
Decode XORed Array
Easy
1725
Number Of Rectangles That Can Form The Largest Square
Easy
1732
Find the Highest Altitude
Easy
1736
Latest Time by Replacing Hidden Digits
Easy
1742
Maximum Number of Balls in a Box
Easy
1748
Sum of Unique Elements
Easy
1752
Check if Array Is Sorted and Rotated
Easy
1758
Minimum Changes To Make Alternating Binary String
Easy
1763
Longest Nice Substring
Easy
1768
Merge Strings Alternately
Easy
1773
Count Items Matching a Rule
Easy
1779
Find Nearest Point That Has the Same X or Y Coordinate
Easy
1784
Check if Binary String Has at Most One Segment of Ones
Easy
1790
Check if One String Swap Can Make Strings Equal
Easy
1791
Find Center of Star Graph
Easy
1796
Second Largest Digit in a String
Easy
1800
Maximum Ascending Subarray Sum
Easy
1805
Number of Different Integers in a String
Easy
1812
Determine Color of a Chessboard Square
Easy
1816
Truncate Sentence
Easy
1822
Sign of the Product of an Array
Easy
1826
Faulty Sensor
Easy
1827
Minimum Operations to Make the Array Increasing
Easy
1832
Check if the Sentence Is Pangram
Easy
1837
Sum of Digits in Base K
Easy
1844
Replace All Digits with Characters
Easy
1848
Minimum Distance to the Target Element
Easy
1854
Maximum Population Year
Easy
1859
Sorting the Sentence
Easy
1863
Sum of All Subset XOR Totals
Easy
1869
Longer Contiguous Segments of Ones than Zeros
Easy
1876
Substrings of Size Three with Distinct Characters
Easy
1880
Check if Word Equals Summation of Two Words
Easy
1886
Determine Whether Matrix Can Be Obtained By Rotation
Easy
1893
Check if All the Integers in a Range Are Covered
Easy
1897
Redistribute Characters to Make All Strings Equal
Easy
1903
Largest Odd Number in String
Easy
1909
Remove One Element to Make the Array Strictly Increasing
Easy
1913
Maximum Product Difference Between Two Pairs
Easy
1920
Build Array from Permutation
Easy
1925
Count Square Sum Triples
Easy
1929
Concatenation of Array
Easy
1933
Check if String Is Decomposable Into Value-Equal Substrings
Easy
1935
Maximum Number of Words You Can Type
Easy
1941
Check if All Characters Have Equal Number of Occurrences
Easy
1945
Sum of Digits of String After Convert
Easy
1952
Three Divisors
Easy
1957
Delete Characters to Make Fancy String
Easy
1961
Check If String Is a Prefix of Array
Easy
1967
Number of Strings That Appear as Substrings in Word
Easy
1971
Find if Path Exists in Graph
Easy
1974
Minimum Time to Type Word Using Special Typewriter
Easy
1979
Find Greatest Common Divisor of Array
Easy
1984
Minimum Difference Between Highest and Lowest of K Scores
Easy
1991
Find the Middle Index in Array
Easy
1995
Count Special Quadruplets
Easy
2000
Reverse Prefix of Word
Easy
2006
Count Number of Pairs With Absolute Difference K
Easy
2011
Final Value of Variable After Performing Operations
Easy
2016
Maximum Difference Between Increasing Elements
Easy
2022
Convert 1D Array Into 2D Array
Easy
2027
Minimum Moves to Convert String
Easy
2032
Two Out of Three
Easy
2037
Minimum Number of Moves to Seat Everyone
Easy
2042
Check if Numbers Are Ascending in a Sentence
Easy
2047
Number of Valid Words in a Sentence
Easy
2053
Kth Distinct String in an Array
Easy
2057
Smallest Index With Equal Value
Easy
2062
Count Vowel Substrings of a String
Easy
2068
Check Whether Two Strings are Almost Equivalent
Easy
2073
Time Needed to Buy Tickets
Easy
2078
Two Furthest Houses With Different Colors
Easy
2085
Count Common Words With One Occurrence
Easy
2089
Find Target Indices After Sorting Array
Easy
2094
Finding 3-Digit Even Numbers
Easy
2099
Find Subsequence of Length K With the Largest Sum
Easy
2103
Rings and Rods
Easy
2108
Find First Palindromic String in the Array
Easy
2114
Maximum Number of Words Found in Sentences
Easy
2119
A Number After a Double Reversal
Easy
2124
Check if All A's Appears Before All B's
Easy
2129
Capitalize the Title
Easy
2133
Check if Every Row and Column Contains All Numbers
Easy
2138
Divide a String Into Groups of Size k
Easy
2144
Minimum Cost of Buying Candies With Discount
Easy
2148
Count Elements With Strictly Smaller and Greater Elements
Easy
2
Add Two Numbers
Medium
3
Longest Substring Without Repeating Characters
Medium
5
Longest Palindromic Substring
Medium
6
Zigzag Conversion
Medium
7
Reverse Integer
Medium
8
String to Integer (atoi)
Medium
11
Container With Most Water
Medium
12
Integer to Roman
Medium
15
3Sum
Medium
16
3Sum Closest
Medium
17
Letter Combinations of a Phone Number
Medium
18
4Sum
Medium
19
Remove Nth Node From End of List
Medium
22
Generate Parentheses
Medium
24
Swap Nodes in Pairs
Medium
29
Divide Two Integers
Medium
31
Next Permutation
Medium
33
Search in Rotated Sorted Array
Medium
34
Find First and Last Position of Element in Sorted Array
Medium
36
Valid Sudoku
Medium
38
Count and Say
Medium
39
Combination Sum
Medium
40
Combination Sum II
Medium
43
Multiply Strings
Medium
45
Jump Game II
Medium
46
Permutations
Medium
47
Permutations II
Medium
48
Rotate Image
Medium
49
Group Anagrams
Medium
50
Pow(x, n)
Medium
54
Spiral Matrix
Medium
55
Jump Game
Medium
56
Merge Intervals
Medium
57
Insert Interval
Medium
59
Spiral Matrix II
Medium
61
Rotate List
Medium
62
Unique Paths
Medium
63
Unique Paths II
Medium