LeetCode

	A	B	C	D	E	F	G	H	I	J	K
1	No.	Title	Tag 1	Tag 2	Level	Cpp	Reference	Self-rewrite		Date	備註

2	Problems: 1064				self-solved	8	7		done	14	AC rate = 0.57
3	2	Add Two Numbers	Linked List		Medium	x	v			2020/6/22
4	7	Reverse Integer	Other		Easy	overflow	v			2020/6/22	overflow to_string atoi(c_str())
5	9	Palindrome Number	String		Easy	overflow	v			2020/6/22	overflow
6	39	Combination Sum	DFS	BackTracing	Medium	x	v			2020/6/22
7	40	Combination Sum II	DFS	BackTracing	Medium	v				2020/6/22
8	1	Two Sum	Hash		Easy	v				2020/6/21	map, vector
17	13	Roman to Integer	String	math	Easy	v				2020/6/23
18	14	Longest Common Prefix	String		Easy	x	v			2020/6/23
24	20	Valid Parentheses	Stack	String	Easy	v	v			2020/6/23	stack, switch
130	101	Symmetric Tree	Tree	DFS	Easy	x	v			2020/7/1
131	102	Binary Tree Level Order Traversal	Tree	BFS	Medium	v				2020/7/1
132	103	Binary Tree Zigzag Level Order Traversal	Tree	BFS	Medium	v				2020/7/1
133	104	Maximum Depth of Binary Tree	Tree	DFS	Easy	v				2020/7/1
241	199	Binary Tree Right Side View	Tree	BFS	Medium	v				2020/7/8