Leetcode-Golang

Leetcode Solutions in Go

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Easy

LC #	Description
1480	Running Sum of 1d Array
1431	Kids With the Greatest Number of Candies
1	Two Sum
575	Distribute Candies
1365	How Many Numbers Are Smaller Than the Current Number
1773	Count Items Matching a Rule
645	Set Mismatch
268	Missing Number
160	Intersection of Two Linked Lists
637	Average of Levels in Binary Tree
559	Maximum Depth of N-ary Tree
690	Employee Importance
993	Cousins in Binary Tree
1748	Sum of Unique Elements
232	Implement Queue using Stacks
1332	Remove Palindromic Subsequences
1678	Goal Parser Interpretation
1022	Sum of Root To Leaf Binary Numbers
404	Sum of Left Leaves
112	Path Sum
535	Encode and Decode TinyURL
1560	Most Visited Sector in a Circular Track
598	Range Addition II
762	Prime Number of Set Bits in Binary Representation
500	Keyboard Row
1656	Design an Ordered Stream
234	Palindrome Linked List
1614	Maximum Nesting Depth of the Parentheses
1668	Maximum Repeating Substring
1704	Determine if String Halves Are Alike
953	Verifying an Alien Dictionary
509	Fibonacci Number
589	N-ary Tree Preorder Traversal
696	Count Binary Substrings
326	Power of Three
703	Kth Largest Element in a Stream
204	Count Primes
453	Minimum Moves to Equal Array Elements
709	To Lower Case
1710	Maximum Units on a Truck
1047	Remove All Adjacent Duplicates In String
108	Convert Sorted Array to Binary Search Tree
415	Add Strings
653	Two Sum IV - Input is a BST
1629	Slowest Key
206	Reverse Linked List
1189	Maximum Number of Balloons
350	Intersection of Two Arrays II
1275	Find Winner on a Tic Tac Toe Game
485	Max Consecutive Ones
929	Unique Email Addresses
922	Sort Array By Parity II
463	Island Perimeter
70	Climbing Stairs
543	Diameter of Binary Tree
374	Guess Number Higher or Lower
496	Next Greater Element I
155	Min Stack
226	Invert Binary Tree
441	Arranging Coins
1413	Minimum Value to Get Positive Step by Step Sum
203	Remove Linked List Elements
448	Find All Numbers Disappeared in an Array
461	Hamming Distance
53	Maximum Subarray
35	Search Insert Position
1217	Minimum Cost to Move Chips to The Same Position
563	Binary Tree Tilt
1446	Consecutive Characters
938	Range Sum of BST
1200	Minimum Absolute Difference
231	Power of Two
476	Number Complement
876	Middle of the Linked List
997	Find the Town Judge
1009	Complement of Base 10 Integer
67	Add Binary
290	Word Pattern
605	Can Place Flowers
520	Detect Capital
941	Valid Mountain Array
389	Find the Difference
258	Add Digits
1108	Defanging an IP Address
1832	Check if the Sentence Is Pangram
104	Maximum Depth of Binary Tree
136	Single Number
171	Excel Sheet Column Number
228	Summary Ranges
338	Counting Bits
392	Is Subsequence
21	Merge Two Sorted Lists
141	Linked List Cycle
617	Merge Two Binary Trees
20	Valid Parentheses
1351	Count Negative Numbers in a Sorted Matrix
905	Sort Array By Parity
344	Reverse String
1460	Make Two Arrays Equal by Reversing Sub-arrays
977	Squares of a Sorted Array
349	Intersection of Two Arrays
1002	Find Common Characters
766	Toeplitz Matrix
704	Binary Search
1160	Find Words That Can Be Formed by Characters
412	Fizz Buzz
266	Palindrome Permutation
145	Binary Tree Postorder Traversal
169	Majority Element
242	Valid Anagram
217	Contains Duplicate
283	Move Zeroes
1260	Shift 2D Grid
700	Search in a Binary Search Tree
844	Backspace String Compare
88	Merge Sorted Array
859	Buddy Strings
557	Reverse Words in a String III
976	Largest Perimeter Triangle
219	Contains Duplicate II
1544	Make The String Great
1323	Maximum 69 Number
2325	Decode the Message
121	Best Time to Buy and Sell Stock
1971	Find if Path Exists in Graph
2389	Longest Subsequence With Limited Sum
2073	Time Needed to Buy Tickets
697	Degree of an Array

Medium

LC #	Description
931	Minimum Falling Path Sum
946	Validate Stack Sequences
29	Divide Two Integers
820	Short Encoding of Words
1381	Design a Stack With Increment Operation
623	Add One Row to Tree
12	Integer to Roman
1315	Sum of Nodes with Even-Valued Grandparent
1302	Deepest Leaves Sum
322	Coin Change
1305	All Elements in Two Binary Search Trees
1461	Check If a String Contains All Binary Codes of Size K
1721	Swapping Nodes in a Linked List
714	Best Time to Buy and Sell Stock with Transaction Fee
478	Generate Random Point in a Circle
208	Implement Trie (Prefix Tree)
376	Wiggle Subsequence
38	Count and Say
146	LRU Cache
1583	Count Unhappy Friends
729	My Calendar I
841	Keys And Rooms
113	Path Sum II
1398	Design Underground System
1797	Design Authentication Manager
1798	Maximum Number of Consecutive Values You Can Make
966	Vowel Spellchecker
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers
1764	Form Array by Concatenating Subarrays of Another Array
923	3Sum With Multiplicity
417	Pacific Atlantic Water Flow
916	Word Subsets
5	Longest Palindromic Substring
647	Palindromic Substrings
971	Flip Binary Tree To Match Preorder Traversal
1726	Tuple with Same Product
474	Ones and Zeroes
1488	Avoid Flood in The City
947	Most Stones Removed with Same Row or Column
622	Design Circular Queue
1670	Design Front Middle Back Queue
494	Target Sum
17	Letter Combinations of a Phone Number
638	Shopping Offers
667	Beautiful Arrangement II
650	2 Keys Keyboard
801	Minimum Swaps To Make Sequences Increasing
341	Flatten Nested List Iterator
86	Partition List
91	Decode Ways
62	Unique Paths
1209	Remove All Adjacent Duplicates in String II
279	Perfect Squares
377	Combination Sum IV
120	Triangle
554	Brick Wall
48	Rotate Image
935	Knight Dialer
740	Delete and Earn
63	Unique Paths II
34	Find First and Last Position of Element in Sorted Array
970	Powerful Integers
665	Non-decreasing Array
1472	Design Browser History
109	Convert Sorted List to Binary Search Tree
583	Delete Operation for Two Strings
1423	Maximum Points You Can Obtain from Cards
304	Range Sum Query 2D - Immutable
816	Ambiguous Coordinates
114	Flatten Binary Tree to Linked List
1048	Longest String Chain
213	House Robber II
462	Minimum Moves to Equal Array Elements II
890	Find and Replace Pattern
337	House Robber III
921	Minimum Add to Make Parentheses Valid
1871	Jump Game VII
150	Evaluate Reverse Polish Notation
318	Maximum Product of Word Lengths
1695	Maximum Erasure Value
1268	Search Suggestions System
695	Max Area of Island
97	Interleaving String
1465	Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
128	Longest Consecutive Sequence
105	Construct Binary Tree from Preorder and Inorder Traversal
1696	Jump Game VI
698	Partition to K Equal Sum Subsets
22	Generate Parentheses
795	Number of Subarrays with Bounded Maximum
118	Pascal's Triangle
576	Out of Boundary Paths
684	Redundant Connection
1004	Max Consecutive Ones III
236	Lowest Common Ancestor of a Binary Tree
89	Gray Code
378	Kth Smallest Element in a Sorted Matrix
718	Maximum Length of Repeated Subarray
300	Longest Increasing Subsequence
162	Find Peak Element
791	Custom Sort String
611	Valid Triangle Number
235	Lowest Common Ancestor of a Binary Search Tree
838	Push Dominoes
915	Partition Array into Disjoint Intervals
814	Binary Tree Pruning
90	Subsets II
877	Stone Game
429	N-ary Tree Level Order Traversal
926	Flip String to Monotone Increasing
954	Array of Doubled Pairs
49	Group Anagrams
73	Set Matrix Zeroes
1448	Count Good Nodes in Binary Tree
36	Valid Sudoku
153	Find Minimum in Rotated Sorted Array
565	Array Nesting
848	Shifting Letters
978	Longest Turbulent Subarray
54	Spiral Matrix
1239	Maximum Length of a Concatenated String with Unique Characters
725	Split Linked List in Parts
473	Matchsticks to Square
1143	Longest Common Subsequence
55	Jump Game
442	Find All Duplicates in an Array
79	Word Search
201	Bitwise AND of Numbers Range
1008	Construct Binary Search Tree from Preorder Traversal
309	Best Time to Buy and Sell Stock with Cooldown
437	Path Sum III
4511	Sort Characters By Frequency
222	Count Complete Tree Nodes
75	Sort Colors
15	3Sum
994	Rotting Oranges
430	Flatten a Multilevel Doubly Linked List
130	Surrounded Regions
129	Sum Root to Leaf Numbers
260	Single Number III
43	Multiply Strings
96	Unique Binary Search Trees
122	Best Time to Buy and Sell Stock II
739	Daily Temperatures
368	Largest Divisible Subset
540	Single Element in a Sorted Array
106	Construct Binary Tree from Inorder and Postorder Traversal
450	Delete Node in a BST
986	Interval List Intersections
238	Product of Array Except Self
797	All Paths From Source to Target
721	Accounts Merge
198	House Robber
328	Odd Even Linked List
152	Maximum Product Subarray
1306	Jump Game III
790	Domino and Tromino Tiling
416	Partition Equal Subset Sum
310	Minimum Height Trees
221	Maximal Square
394	Decode String
143	Reorder List
210	Course Schedule II
56	Merge Intervals
227	Basic Calculator II
973	K Closest Points to Origin
116	Populating Next Right Pointers in Each Node
1015	Smallest Integer Divisible by K
1026	Maximum Difference Between Node and Ancestor
1010	Pairs of Songs With Total Durations Divisible by 60
131	Palindrome Partitioning
382	Linked List Random Node
1041	Robot Bounded In Circle
701	Insert into a Binary Search Tree
452	Minimum Number of Arrows to Burst Balloons
8	String to Integer (atoi)
849	Maximize Distance to Closest Person
142	Linked List Cycle II
875	Koko Eating Bananas
134	Gas Station
1291	Sequential Digits
421	Maximum XOR of Two Numbers in an Array
211	Design Add and Search Words Data Structure
438	Find All Anagrams in a String
454	4Sum II
525	Contiguous Array
80	Remove Duplicates from Sorted Array II
532	K-diff Pairs in an Array
560	Subarray Sum Equals K
567	Permutation in String
78	Subsets
39	Combination Sum
402	Remove K Digits
133	Clone Graph
148	Sort List
662	Maximum Width of Binary Tree
413	Arithmetic Slices
799	Champagne Tower
82	Remove Duplicates from Sorted List II
61	Rotate List
138	Copy List with Random Pointer
71	Simplify Path
1249	Minimum Remove to Make Valid Parentheses
856	Score of Parentheses
316	Remove Duplicate Letters
763	Partition Labels
1663	Smallest String With A Given Numeric Value
991	Broken Calculator
881	Boats to Save People
1024	Two City Scheduling
81	Search in Rotated Sorted Array II
287	Find the Duplicate Number
74	Search a 2D Matrix
11	Container With Most Water
538	Convert BST to Greater Tree
230	Kth Smallest Element in a BST
284	Peeking Iterator
216	Combination Sum III
47	Permutations II
117	Populating Next Right Pointers in Each Node II
743	Network Delay Time
474	Ones and Zeroes
167	Two Sum II - Input Array Is Sorted
3	Longest Substring Without Repeating Characters
1658	Minimum Operations to Reduce X to Zero
215	Kth Largest Element in an Array
1570	Dot Product of Two Sparse Vectors
199	Binary Tree Right Side View
92	Reverse Linked List II
307	Range Sum Query - Mutable
240	Search a 2D Matrix II
1457	Pseudo-Palindromic Paths in a Binary Tree
1770	Maximum Score from Performing Multiplication Operations
985	Sum of Even Numbers After Queries
1680	Concatenation of Consecutive Binary Numbers
990	Satisfiability of Equality Equations
658	Find K Closest Elements
1578	Minimum Time to Make Rope Colorful
16	3Sum Closest
334	Increasing Triplet Subsequence
2095	Delete the Middle Node of a Linked List
1662	Check If Two String Arrays are Equivalent
523	Continuous Subarray Sum
835	Image Overlap
433	Minimum Genetic Mutation
1926	Nearest Exit from Entrance in Maze
2225	Find Players With Zero or One Losses
380	Insert Delete GetRandom O(1)
1207	Unique Number of Occurrences
45	Jump Game II
1014	Best Sightseeing Pair
886	Possible Bipartition
2279	Maximum Bags With Full Capacity of Rocks
343	Integer Break
256	Paint House
487	Max Consecutive Ones II
1746	Maximum Subarray Sum After One Operation
1230	Toss Strange Coins
2498	Frog Jump II
2244	Minimum Rounds to Complete All Tasks
1749	Maximum Absolute Sum of Any Subarray
2186	Minimum Number of Steps to Make Two Strings Anagram II
2414	Length of the Longest Alphabetical Continuous Substring
1519	Number of Nodes in the Sub-Tree With the Same Label

Hard

LC #	Description
354	Russian Doll Envelopes
936	Stamping The Sequence
32	Longest Valid Parentheses
1559	Detect Cycles in 2D Grid
329	Longest Increasing Path in a Matrix
1192	Critical Connections in a Network
980	Unique Paths III
745	Prefix and Suffix Search
630	Course Schedule III
65	Valid Number
968	Binary Tree Cameras
1473	Paint House III
51	N-Queens
52	N-Queens II
778	Swim in Rising Water
315	Count of Smaller Numbers After Self
135	Candy
927	Three Equal Parts
25	Reverse Nodes in k-Group
233	Number of Digit One
42	Trapping Rain Water
132	Palindrome Partitioning II
546	Remove Boxes
37	Sudoku Solver
850	Rectangle Area II
330	Patching Array
899	Orderly Queue
224	Basic Calculator
782	Transform to Chessboard
174	Dungeon Game
123	Best Time to Buy and Sell Stock III
154	Find Minimum in Rotated Sorted Array II
668	Kth Smallest Number in Multiplication Table
952	Largest Component Size by Common Factor
85	Maximal Rectangle
1032	Stream of Characters
878	Nth Magical Number
902	Numbers At Most N Given Digit Set
1463	Cherry Pickup II
1345	Jump Game IV
1510	Stone Game IV
127	Word Ladder
410	Split Array Largest Sum
629	K Inverse Pairs Array
1074	Number of Submatrices That Sum to Target
1531	String Compression II
1335	Minimum Difficulty of a Job Schedule
76	Minimum Window Substring
2136	Earliest Possible Day of Full Bloom
2193	Minimum Number of Moves to Make Palindrome
1235	Maximum Profit in Job Scheduling
446	Arithmetic Slices II - Subsequence
124	Binary Tree Maximum Path Sum
600	Non-negative Integers without Consecutive Ones
72	Edit Distance
1340	Jump Game V
403	Frog Jump
188	Best Time to Buy and Sell Stock IV
149	Max Points on a Line
140	Word Break II