LeetCodeAnswers

Algorithms

#	Title	Solution	Difficulty
151	Reverse Words in a String	Java	Medium
4	Add Two Numbers	Java	Medium
150	Evaluate Reverse Polish Notation	Java	Medium
148	Sort List	Java	Medium
116	Populating Next Right Pointers in Each Node	Java	Medium
117	Populating Next Right Pointers in Each Node II	Java	Hard
8	String to Integer (atoi)	Java	Easy
1	Two Sum	Java	Medium
15	3Sum	java	Medium
16	3Sum Closest	java	Medium
17	4Sum	java	Medium
191	number-of-1-bits	java	Easy
146	LRU Cache	java	Hard
283	Move Zeroes	java	Easy
3	Longest Substring Without Repeating Characters	java	Medium
4	Median of Two Sorted Arrays	java	Hard
5	Longest Palindromic Substring	java	Medium
6	ZigZag Conversion	java	Easy
7	Reverse Integer	java	Easy
9	Palindrome Number	java	Easy
10	Regular Expression Matching	java	Hard
11	Container With Most Water	java	Medium
14	Longest Common Prefix	java	Easy
17	Letter Combinations of a Phone Number	java	Medium
19	Remove Nth Node From End of List	java	Easy
20	Valid Parentheses	java	Easy
21	Merge Two Sorted Lists	java	Easy
22	Generate Parentheses	java	Medium
23	Merge k Sorted Lists	java	Hard
24	Swap Nodes in Pairs	java	Medium
25	Reverse Nodes in k-Group	java	Hard
26	Remove Duplicates from Sorted Array	java	Easy
27	Remove Element	java	Easy
28	Implement strStr()	java	Easy
29	Divide Two Integers	java	Medium
30	Substring with Concatenation of All Words	java	Hard
31	Next Permutation	java	Medium
32	Longest Valid Parentheses	java	Hard
33	Search in Rotated Sorted Array	java	Hard
34	Search for a Range	java	Medium
35	Search Insert Position	java	Medium
36	Valid Sudoku	java	Easy

Database

#	Title	Solution	Difficulty
175	Combine Two Tables	mysql	Easy
176	Second Highest Salary	mysql	Easy
182	Duplicate Emails	mysql	Easy

Shell

#	Title	Solution	Difficulty
195	Tenth Line	bash	Easy
194	Transpose File	bash	Medium
193	Valid Phone Numbers	bash	Easy