LeetCode

LeetCode刷题代码库

Easy

#	Title	Solution	Solution	Tag	Note
1	Two Sum	C++	python	List
13	Roman to Integer	C++	python	String
26	Remove Duplicates from Sorted Array	C++		Array
28	Implement strStr()	C++		String
53	Maximum Subarray	C++	python	Array	CSDN
58	Length of Last Word	c++	pyhton	String
66	Plus One	C++	python
70	Climbing Stairs	C++	python	DP
83	Remove Duplicates from Sorted List	C++		Linked List
101	Symmetric Tree	C++		Tree
104	Maximum Depth of Binary Tree	C++		Tree
110	Balanced Binary Tree	C++		Tree
111	Minimum Depth of Binary Tree	C++		Tree
121	Best Time to Buy and Sell Stock	C++		DP
136	Single Number	C++	python		CSDN
169	Majority Element	C++	python	Array
171	Excel Sheet Column Number	C++	python	Array
189	Rotate Array	C++		Array
190	Reverse Bits	C++		Bits
191	Number of 1 Bits	C++		Bits
202	Happy Number	C++	python	Math
204	Count Primes	C++	python	Math
206	Reverse Linked List	C++	python	Linked List
217	Contains Duplicate	C++		Array
225	Implement Stack using Queues	C++		stack
231	Power of Two	C++		Bits
232	Implement Queue using Stacks	C++		stack
234	Palindrome Linked List	C++	python	Linked List
237	Delete Node in a Linked List	C++		Linked List
242	Valid Anagram	C++		HashMap
258	Add Digits	C++	python
344	Reverse String	C++	python	String
349	Intersection of Two Arrays	C++		Arrays
350	Intersection of Two Arrays II	C++		Arrays
371	Sum of Two Integers	C++	python
389	Find the Difference	C++		Bits
412	Fizz Buzz	C++	python	Sum of bit
415	Add Strings	C++		BigDecimal
509	Fibonacci Number	C++		Array
589	N-ary Tree Preorder Traversal	C++		Tree
665	Non-decreasing Array	C++		Array	CSDN
674	Longest Continuous Increasing Subsequence	C++		List
693	Binary Number with Alternating Bits	C++		Bits
706	Design HashMap	C++	python	HashMap
771	Jewels and Stones	C++		string
821	Shortest Distance to a Character	C++		Array	CSDN
892	Surface Area of 3D Shapes	C++		Math

Medium

#	Title	Solution	Solution	Tag	Note
2	Add Two Numbers	C++	python	Linked List
3	Longest Substring Without Repeating Characters	C++	python	String
5	Longest Palindromic Substring	C++		DP
8	String to Integer (atoi)	C++		string
11	Container with Most Water	C++	python	Array
15	3sum	C++	python	Array
19	Remove Nth Node From End of List	C++		Linked List
22	Generate Parentheses	C++		Backtracking
31	Next Permutation	C++		Array
39	Combination Sum	C++		Backtracking
40	Combination Sum II	C++		Backtracking
46	Permutations	C++	python	Backtracking
47	Permutations II	C++		Backtracking
54	Spiral Matrix	C++	python	Array
56	Merge Intervals	C++		Array
59	Spiral Matrix II	C++		Array
62	Unique Paths	C++		DP
77	Combinations	C++		Backtracking
78	Subsets	C++		Backtracking
79	Word Search	C++		Backtracking
82	Remove Duplicates from Sorted List II	C++		Linked List
90	Subsets II	C++		Backtracking
94	Binary Tree Inorder Traversal	C++		Tree
96	Unique Binary Search Trees	C++		Math
102	Binary Tree Level Order Traversal	C++		Tree
137	Single Number II	C++		Bit
144	Binary Tree Preorder Traversal	C++		Tree
152	Maximum Product Subarray	C++		DP
153	Find Minimum in Rotated Sorted Array	C++		Array
215	Kth Largest Element in an Array	C++		Heap
216	Combination Sum III	C++		Backtracking
229	Majority Element II	C++		Array
260	Single Number III	C++		Backtracking
300	Longest Increasing Subsequence	C++		DP
322	Coin Change	C++		DP
338	Counting Bits	C++		Bits
343	Integer Break	C++		DP
386	Lexicographical Numbers	C++		Math	CSDN
416	Partition Equal Subset Sum	C++		DP
452	Minimum Number of Arrows to Burst Balloons	C++		Greedy
516	Longest Palindromic Subsequence	C++		DP
647	Palindromic Substrings	C++		DP
845	Longest Mountain in Array	C++		Array	CSDN
983	Minimum Cost For Tickets	C++		DP
1143	Longest Common Subsequence	C++		DP

Hard

#	Title	Solution	Solution	Tag	Note
4	Median of Two Sorted Arrays	C++	python	Array
123	Best Time to Buy and Sell Stock III	C++		Array
440	K-th Smallest in Lexicographical Order	C++		Math	CSDN