算法题

Record of my solutions and thoughts to algorithm problems.

LeetCode

	Problems	Solutions	Topic	Difficulty
3	Longest Substring Without Repeating Characters	C++	`Hash Table` `Two Pointer`	Medium
5	Longest Palindromic Substring	C++	`Two Pointer`	Medium
6	ZigZag Conversion	C++	`String`	Medium
7	Reverse Integer	C++	`Math`	Easy
8	String to Integer (atoi)	C++	`String` `Simulation`	Medium
9	Palindrome Number	C++	`Math`	Easy
10	Regular Expression Matching	C++	`String` `Dynamic Programming`	Hard
11	Container With Most Water	C++	`Array` `Two Pointer`	Medium
12	Integer to Roman	C++	`Math` `HashMap`	Medium
13	Roman to Integer	C++	`Math` `HashMap`	Easy
14	Longest Common Prefix	C++	`String`	Easy
15	3Sum	C++	`Array` `Two Pointers`	Medium
16	3Sum Closest	C++	`Array` `Two Pointers`	Medium
17	Letter Combinations of a Phone Number	C++	`Array` `Backtracking`	Medium
19	Remove Nth Node From End of List	C++	`Linked List` `Two Pointers`	Medium
37	Sudoku Solver	C++		Hard
51	N-Queens	C++		Hard
100	Same Tree	C++		Easy
709	To Lower Case	C++		Easy
771	Jewels and Stones	C++		Easy
929	Unique Email Address	C++		Easy
961	N-Repeated Element in Size 2N Array	C++		Easy

Zhilong

Student

Beijing, China

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