From 9db204d5820a8859479a6a6558accb52dc2c39ea Mon Sep 17 00:00:00 2001
From: Libin Yang <contact@yanglibin.info>
Date: Tue, 6 Nov 2018 20:35:42 +0800
Subject: [PATCH] =?UTF-8?q?Revert=20"Revert=20"33=20(java)=E3=80=81?=
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MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
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 Rename folder.go                              |  33 ++++
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 339 files changed, 130 insertions(+), 80 deletions(-)
 create mode 100644 Rename folder.go
 rename solution/{001.Two Sum => 0001.Two Sum}/README.md (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution.cpp (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution.go (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution.java (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution.js (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution.py (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution.rb (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution.scala (100%)
 rename solution/{001.Two Sum => 0001.Two Sum}/Solution2.js (100%)
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 rename solution/{002.Add Two Numbers => 0002.Add Two Numbers}/README.md (100%)
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 rename solution/{003.Longest Substring Without Repeating Characters => 0003.Longest Substring Without Repeating Characters}/README.md (100%)
 rename solution/{003.Longest Substring Without Repeating Characters => 0003.Longest Substring Without Repeating Characters}/Solution.java (100%)
 rename solution/{004.Median of Two Sorted Arrays => 0004.Median of Two Sorted Arrays}/README.md (100%)
 rename solution/{004.Median of Two Sorted Arrays => 0004.Median of Two Sorted Arrays}/Solution.cpp (100%)
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 rename solution/{005.Longest Palindromic Substring => 0005.Longest Palindromic Substring}/README.md (100%)
 rename solution/{005.Longest Palindromic Substring => 0005.Longest Palindromic Substring}/Solution.java (100%)
 rename solution/{006.ZigZag Conversion => 0006.ZigZag Conversion}/Solution.cpp (100%)
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 rename solution/{007.Reverse Integer => 0007.Reverse Integer}/README.md (100%)
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 rename solution/{025.Reverse Nodes in k-Group => 0025.Reverse Nodes in k-Group}/README.md (100%)
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 rename solution/{026.Remove Duplicates from Sorted Array => 0026.Remove Duplicates from Sorted Array}/README.md (100%)
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 rename solution/{027.Remove Element => 0027.Remove Element}/README.md (100%)
 rename solution/{027.Remove Element => 0027.Remove Element}/Solution.cpp (100%)
 rename solution/{027.Remove Element => 0027.Remove Element}/Solution.java (100%)
 rename solution/{028.Implement strStr() => 0028.Implement strStr()}/README.md (100%)
 rename solution/{028.Implement strStr() => 0028.Implement strStr()}/Solution.cpp (100%)
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 rename solution/{029.Divide Two Integers => 0029.Divide Two Integers}/README.md (100%)
 rename solution/{029.Divide Two Integers => 0029.Divide Two Integers}/Solution.java (100%)
 rename solution/{030.Substring with Concatenation of All Words => 0030.Substring with Concatenation of All Words}/README.md (100%)
 rename solution/{030.Substring with Concatenation of All Words => 0030.Substring with Concatenation of All Words}/Solution.java (100%)
 rename solution/{031.Next Permutation => 0031.Next Permutation}/README.md (100%)
 rename solution/{031.Next Permutation => 0031.Next Permutation}/Solution.java (100%)
 rename solution/{032.Longest Valid Parentheses => 0032.Longest Valid Parentheses}/README.md (100%)
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 rename solution/{033.Search in Rotated Sorted Array => 0033.Search in Rotated Sorted Array}/README.md (100%)
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 create mode 100644 solution/0033.Search in Rotated Sorted Array/Solution.java
 rename solution/{035.Search Insert Position => 0035.Search Insert Position}/README.md (100%)
 rename solution/{035.Search Insert Position => 0035.Search Insert Position}/Solution.cpp (100%)
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 rename solution/{036.Valid Sudoku => 0036.Valid Sudoku}/Solution.js (100%)
 rename solution/{038.Count and Say => 0038.Count and Say}/Solution.js (100%)
 rename solution/{039.Combination Sum => 0039.Combination Sum}/README.md (100%)
 rename solution/{039.Combination Sum => 0039.Combination Sum}/Solution.cpp (100%)
 rename solution/{040.Combination Sum II => 0040.Combination Sum II}/README.md (100%)
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 rename solution/{041.First Missing Positive => 0041.First Missing Positive}/README.md (100%)
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 rename solution/{046.Permutations => 0046.Permutations}/README.md (100%)
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diff --git a/README.md b/README.md
index 73b842e972d72..9801dffd99bc4 100644
--- a/README.md
+++ b/README.md
@@ -19,98 +19,98 @@ Complete [solutions](https://github.com/doocs/leetcode/tree/master/solution) to
 
 | # | Title | Tags |
 |---|---|---|
-| 001 | [Two Sum](https://github.com/doocs/leetcode/tree/master/solution/001.Two%20Sum) | `Array`, `Hash Table` |
-| 007 | [Reverse Integer](https://github.com/doocs/leetcode/tree/master/solution/007.Reverse%20Integer) | `Math` |
-| 009 | [Palindrome Number](https://github.com/doocs/leetcode/tree/master/solution/009.Palindrome%20Number) | `Math` |
-| 013 | [Roman to Integer](https://github.com/doocs/leetcode/tree/master/solution/013.Roman%20to%20Integer) | `Math`, `String` |
-| 014 | [Longest Common Prefix](https://github.com/doocs/leetcode/tree/master/solution/014.Longest%20Common%20Prefix) | `String` |
-| 020 | [Valid Parentheses](https://github.com/doocs/leetcode/tree/master/solution/020.Valid%20Parentheses) | `String`, `Stack` |
-| 021 | [Merge Two Sorted Lists](https://github.com/doocs/leetcode/tree/master/solution/021.Merge%20Two%20Sorted%20Lists) | `Linked List` |
-| 028 | [Implement strStr()](https://github.com/doocs/leetcode/tree/master/solution/028.Implement%20strStr()) | `Two Pointers`, `String` |
-| 035 | [Search Insert Position](https://github.com/doocs/leetcode/tree/master/solution/035.Search%20Insert%20Position) | `Array`, `Binary Search` |
-| 053 | [Maximum Subarray](https://github.com/doocs/leetcode/tree/master/solution/053.Maximum%20Subarray) | `Array`, `Divide and Conquer`, `Dynamic Programming` |
-| 070 | [Climbing Stairs](https://github.com/doocs/leetcode/tree/master/solution/070.Climbing%20Stairs) | `Dynamic Programming` |
-| 083 | [Remove Duplicates from Sorted List](https://github.com/doocs/leetcode/tree/master/solution/083.Remove%20Duplicates%20from%20Sorted%20List) | `Linked List` |
-| 136 | [Single Number](https://github.com/doocs/leetcode/tree/master/solution/136.Single%20Number) | `Hash Table`, `Bit Manipulation` |
-| 141 | [Linked List Cycle](https://github.com/doocs/leetcode/tree/master/solution/141.Linked%20List%20Cycle) | `Linked List`, `Two Pointers` |
-| 155 | [Min Stack](https://github.com/doocs/leetcode/tree/master/solution/155.Min%20Stack) | `Stack`, `Design` |
-| 175 | [Combine Two Tables](https://github.com/doocs/leetcode/tree/master/solution/175.Combine%20Two%20Tables) | `SQL` |
-| 176 | [Second Highest Salary](https://github.com/doocs/leetcode/tree/master/solution/176.Second%20Highest%20Salary) | `SQL` |
-| 181 | [Employees Earning More Than Their Managers](https://github.com/doocs/leetcode/tree/master/solution/181.Employees%20Earning%20More%20Than%20Their%20Managers) | `SQL` |
-| 182 | [Duplicate Emails](https://github.com/doocs/leetcode/tree/master/solution/182.Duplicate%20Emails) | `SQL` |
-| 183 | [Customers Who Never Order](https://github.com/doocs/leetcode/tree/master/solution/183.Customers%20Who%20Never%20Order) | `SQL` |
-| 189 | [Rotate Array](https://github.com/doocs/leetcode/tree/master/solution/189.Rotate%20Array) | `Array` |
-| 196 | [Delete Duplicate Emails](https://github.com/doocs/leetcode/tree/master/solution/196.Delete%20Duplicate%20Emails) | `SQL` |
-| 197 | [Rising Temperature](https://github.com/doocs/leetcode/tree/master/solution/197.Rising%20Temperature) | `SQL` |
-| 198 | [House Robber](https://github.com/doocs/leetcode/tree/master/solution/198.House%20Robber) | `Dynamic Programming` |
-| 203 | [Remove Linked List Elements](https://github.com/doocs/leetcode/tree/master/solution/203.Remove%20Linked%20List%20Elements) | `Linked List` |
-| 231 | [Power of Two](https://github.com/doocs/leetcode/tree/master/solution/231.Power%20of%20Two) | `Math`, `Bit Manipulation` |
-| 234 | [Palindrome Linked List](https://github.com/doocs/leetcode/tree/master/solution/234.Palindrome%20Linked%20List) | `Linked List`, `Two Pointers` |
-| 235 | [Lowest Common Ancestor of a Binary Search Tree](https://github.com/doocs/leetcode/tree/master/solution/235.Lowest%20Common%20Ancestor%20of%20a%20Binary%20Search%20Tree) | `Tree` |
-| 237 | [Delete Node in a Linked List](https://github.com/doocs/leetcode/tree/master/solution/237.Delete%20Node%20in%20a%20Linked%20List) | `Linked List` |
-| 344 | [Reverse String](https://github.com/doocs/leetcode/tree/master/solution/344.Reverse%20String) | `Two Pointers`, `String` |
-| 581 | [Shortest Unsorted Continuous Subarray](https://github.com/doocs/leetcode/tree/master/solution/581.Shortest%20Unsorted%20Continuous%20Subarray) | `Array` |
-| 595 | [Big Countries](https://github.com/doocs/leetcode/tree/master/solution/595.Big%20Countries) | `SQL` |
-| 596 | [Classes More Than 5 Students](https://github.com/doocs/leetcode/tree/master/solution/596.Classes%20More%20Than%205%20Students) | `SQL` |
-| 605 | [Can Place Flowers](https://github.com/doocs/leetcode/tree/master/solution/605.Can%20Place%20Flowers) | `Array` |
-| 620 | [Not Boring Movies](https://github.com/doocs/leetcode/tree/master/solution/620.Not%20Boring%20Movies) | `SQL` |
-| 627 | [Swap Salary](https://github.com/doocs/leetcode/tree/master/solution/627.Swap%20Salary) | `SQL` |
-| 695 | [Max Area of Island](https://github.com/doocs/leetcode/tree/master/solution/695.Max%20Area%20of%20Island) | `Array`, `Depth-first Search` |
-| 703 | [Kth Largest Element in a Stream](https://github.com/doocs/leetcode/tree/master/solution/703.Kth%20Largest%20Element%20in%20a%20Stream) | `Heap` |
-| 707 | [Design Linked List](https://github.com/doocs/leetcode/tree/master/solution/707.Design%20Linked%20List) | `Linked List`, `Design` |
-| 876 | [Middle of the Linked List](https://github.com/doocs/leetcode/tree/master/solution/876.Middle%20of%20the%20Linked%20List) | `Linked List` |
+| 001 | [Two Sum](https://github.com/doocs/leetcode/tree/master/solution/0001.Two%20Sum) | `Array`, `Hash Table` |
+| 007 | [Reverse Integer](https://github.com/doocs/leetcode/tree/master/solution/0007.Reverse%20Integer) | `Math` |
+| 009 | [Palindrome Number](https://github.com/doocs/leetcode/tree/master/solution/0009.Palindrome%20Number) | `Math` |
+| 013 | [Roman to Integer](https://github.com/doocs/leetcode/tree/master/solution/0013.Roman%20to%20Integer) | `Math`, `String` |
+| 014 | [Longest Common Prefix](https://github.com/doocs/leetcode/tree/master/solution/0014.Longest%20Common%20Prefix) | `String` |
+| 020 | [Valid Parentheses](https://github.com/doocs/leetcode/tree/master/solution/0020.Valid%20Parentheses) | `String`, `Stack` |
+| 021 | [Merge Two Sorted Lists](https://github.com/doocs/leetcode/tree/master/solution/0021.Merge%20Two%20Sorted%20Lists) | `Linked List` |
+| 028 | [Implement strStr()](https://github.com/doocs/leetcode/tree/master/solution/0028.Implement%20strStr()) | `Two Pointers`, `String` |
+| 035 | [Search Insert Position](https://github.com/doocs/leetcode/tree/master/solution/0035.Search%20Insert%20Position) | `Array`, `Binary Search` |
+| 053 | [Maximum Subarray](https://github.com/doocs/leetcode/tree/master/solution/0053.Maximum%20Subarray) | `Array`, `Divide and Conquer`, `Dynamic Programming` |
+| 070 | [Climbing Stairs](https://github.com/doocs/leetcode/tree/master/solution/0070.Climbing%20Stairs) | `Dynamic Programming` |
+| 083 | [Remove Duplicates from Sorted List](https://github.com/doocs/leetcode/tree/master/solution/0083.Remove%20Duplicates%20from%20Sorted%20List) | `Linked List` |
+| 136 | [Single Number](https://github.com/doocs/leetcode/tree/master/solution/0136.Single%20Number) | `Hash Table`, `Bit Manipulation` |
+| 141 | [Linked List Cycle](https://github.com/doocs/leetcode/tree/master/solution/0141.Linked%20List%20Cycle) | `Linked List`, `Two Pointers` |
+| 155 | [Min Stack](https://github.com/doocs/leetcode/tree/master/solution/0155.Min%20Stack) | `Stack`, `Design` |
+| 175 | [Combine Two Tables](https://github.com/doocs/leetcode/tree/master/solution/0175.Combine%20Two%20Tables) | `SQL` |
+| 176 | [Second Highest Salary](https://github.com/doocs/leetcode/tree/master/solution/0176.Second%20Highest%20Salary) | `SQL` |
+| 181 | [Employees Earning More Than Their Managers](https://github.com/doocs/leetcode/tree/master/solution/0181.Employees%20Earning%20More%20Than%20Their%20Managers) | `SQL` |
+| 182 | [Duplicate Emails](https://github.com/doocs/leetcode/tree/master/solution/0182.Duplicate%20Emails) | `SQL` |
+| 183 | [Customers Who Never Order](https://github.com/doocs/leetcode/tree/master/solution/0183.Customers%20Who%20Never%20Order) | `SQL` |
+| 189 | [Rotate Array](https://github.com/doocs/leetcode/tree/master/solution/0189.Rotate%20Array) | `Array` |
+| 196 | [Delete Duplicate Emails](https://github.com/doocs/leetcode/tree/master/solution/0196.Delete%20Duplicate%20Emails) | `SQL` |
+| 197 | [Rising Temperature](https://github.com/doocs/leetcode/tree/master/solution/0197.Rising%20Temperature) | `SQL` |
+| 198 | [House Robber](https://github.com/doocs/leetcode/tree/master/solution/0198.House%20Robber) | `Dynamic Programming` |
+| 203 | [Remove Linked List Elements](https://github.com/doocs/leetcode/tree/master/solution/0203.Remove%20Linked%20List%20Elements) | `Linked List` |
+| 231 | [Power of Two](https://github.com/doocs/leetcode/tree/master/solution/0231.Power%20of%20Two) | `Math`, `Bit Manipulation` |
+| 234 | [Palindrome Linked List](https://github.com/doocs/leetcode/tree/master/solution/0234.Palindrome%20Linked%20List) | `Linked List`, `Two Pointers` |
+| 235 | [Lowest Common Ancestor of a Binary Search Tree](https://github.com/doocs/leetcode/tree/master/solution/0235.Lowest%20Common%20Ancestor%20of%20a%20Binary%20Search%20Tree) | `Tree` |
+| 237 | [Delete Node in a Linked List](https://github.com/doocs/leetcode/tree/master/solution/0237.Delete%20Node%20in%20a%20Linked%20List) | `Linked List` |
+| 344 | [Reverse String](https://github.com/doocs/leetcode/tree/master/solution/0344.Reverse%20String) | `Two Pointers`, `String` |
+| 581 | [Shortest Unsorted Continuous Subarray](https://github.com/doocs/leetcode/tree/master/solution/0581.Shortest%20Unsorted%20Continuous%20Subarray) | `Array` |
+| 595 | [Big Countries](https://github.com/doocs/leetcode/tree/master/solution/0595.Big%20Countries) | `SQL` |
+| 596 | [Classes More Than 5 Students](https://github.com/doocs/leetcode/tree/master/solution/0596.Classes%20More%20Than%205%20Students) | `SQL` |
+| 605 | [Can Place Flowers](https://github.com/doocs/leetcode/tree/master/solution/0605.Can%20Place%20Flowers) | `Array` |
+| 620 | [Not Boring Movies](https://github.com/doocs/leetcode/tree/master/solution/0620.Not%20Boring%20Movies) | `SQL` |
+| 627 | [Swap Salary](https://github.com/doocs/leetcode/tree/master/solution/0627.Swap%20Salary) | `SQL` |
+| 695 | [Max Area of Island](https://github.com/doocs/leetcode/tree/master/solution/0695.Max%20Area%20of%20Island) | `Array`, `Depth-first Search` |
+| 703 | [Kth Largest Element in a Stream](https://github.com/doocs/leetcode/tree/master/solution/0703.Kth%20Largest%20Element%20in%20a%20Stream) | `Heap` |
+| 707 | [Design Linked List](https://github.com/doocs/leetcode/tree/master/solution/0707.Design%20Linked%20List) | `Linked List`, `Design` |
+| 876 | [Middle of the Linked List](https://github.com/doocs/leetcode/tree/master/solution/0876.Middle%20of%20the%20Linked%20List) | `Linked List` |
 
 
 ### Medium
 
 | # | Title | Tags |
 |---|---|---|
-| 002 | [Add Two Numbers](https://github.com/doocs/leetcode/tree/master/solution/002.Add%20Two%20Numbers) | `Linked List`, `Math` |
-| 003 | [Longest Substring Without Repeating Characters](https://github.com/doocs/leetcode/tree/master/solution/003.Longest%20Substring%20Without%20Repeating%20Characters) | `Hash Table`, `Two Pointers`, `String` |
-| 005 | [Longest Palindromic Substring](https://github.com/doocs/leetcode/tree/master/solution/005.Longest%20Palindromic%20Substring) | `String`, `Dynamic Programming` |
-| 015 | [3Sum](https://github.com/doocs/leetcode/tree/master/solution/015.3Sum) | `Array`, `Two Pointers` |
-| 018 | [4Sum](https://github.com/doocs/leetcode/tree/master/solution/018.4Sum) | `Array`, `Hash Table`, `Two Pointers` |
-| 019 | [Remove Nth Node From End of List](https://github.com/doocs/leetcode/tree/master/solution/019.Remove%20Nth%20Node%20From%20End%20of%20List) | `Linked List`, `Two Pointers` |
-| 024 | [Swap Nodes in Pairs](https://github.com/doocs/leetcode/tree/master/solution/024.Swap%20Nodes%20in%20Pairs) | `Linked List` |
-| 031 | [Next Permutation](https://github.com/doocs/leetcode/tree/master/solution/031.Next%20Permutation) | `Array` |
-| 046 | [Permutations](https://github.com/doocs/leetcode/tree/master/solution/046.Permutations) | `Backtracking` |
-| 047 | [Permutations II](https://github.com/doocs/leetcode/tree/master/solution/047.Permutations%20II) | `Backtracking` |
-| 054 | [Spiral Matrix](https://github.com/doocs/leetcode/tree/master/solution/054.Spiral%20Matrix) | `Array` |
-| 059 | [Spiral Matrix II](https://github.com/doocs/leetcode/tree/master/solution/059.Spiral%20Matrix%20II) | `Array` |
-| 061 | [Rotate List](https://github.com/doocs/leetcode/tree/master/solution/061.Rotate%20List) | `Linked List`, `Two Pointers` |
-| 062 | [Unique Paths](https://github.com/doocs/leetcode/tree/master/solution/062.Unique%20Paths) | `Array`, `Dynamic Programming` |
-| 063 | [Unique Paths II](https://github.com/doocs/leetcode/tree/master/solution/063.Unique%20Paths%20II) | `Array`, `Dynamic Programming` |
-| 075 | [Sort Colors](https://github.com/doocs/leetcode/tree/master/solution/075.Sort%20Colors) | `Array`, `Two Pointers`, `Sort` |
-| 082 | [Remove Duplicates from Sorted List II](https://github.com/doocs/leetcode/tree/master/solution/082.Remove%20Duplicates%20from%20Sorted%20List%20II) | `Linked List` |
-| 086 | [Partition List](https://github.com/doocs/leetcode/tree/master/solution/086.Partition%20List) | `Linked List`, `Two Pointers` |
-| 092 | [Reverse Linked List II](https://github.com/doocs/leetcode/tree/master/solution/092.Reverse%20Linked%20List%20II) | `Linked List` |
-| 094 | [Binary Tree Inorder Traversal](https://github.com/doocs/leetcode/tree/master/solution/094.Binary%20Tree%20Inorder%20Traversal) | `Hash Table`, `Stack`, `Tree` |
-| 102 | [Binary Tree Level Order Traversal](https://github.com/doocs/leetcode/tree/master/solution/102.Binary%20Tree%20Level%20Order%20Traversal) | `Tree`, `Breadth-first Search` |
-| 127 | [Word Ladder](https://github.com/doocs/leetcode/tree/master/solution/127.Word%20Ladder) | `Breadth-first Search` |
-| 130 | [Surrounded Regions](https://github.com/doocs/leetcode/tree/master/solution/130.Surrounded%20Regions) | `Depth-first Search`, `Breadth-first Search`, `Union Find` |
-| 137 | [Single Number II](https://github.com/doocs/leetcode/tree/master/solution/137.Single%20Number%20II) | `Bit Manipulation` |
-| 142 | [Linked List Cycle II](https://github.com/doocs/leetcode/tree/master/solution/142.Linked%20List%20Cycle%20II) | `Linked List`, `Two Pointers` |
-| 143| [Reorder List](https://github.com/doocs/leetcode/tree/master/solution/143.Reorder%20List) | `Linked List` |
-| 144 | [Binary Tree Preorder Traversal](https://github.com/doocs/leetcode/tree/master/solution/144.Binary%20Tree%20Preorder%20Traversal) | `Stack`, `Tree` |
-| 150 | [Evaluate Reverse Polish Notation](https://github.com/doocs/leetcode/tree/master/solution/150.Evaluate%20Reverse%20Polish%20Notation) | `Stack` |
-| 153 | [Find Minimum in Rotated Sorted Array](https://github.com/doocs/leetcode/tree/master/solution/153.Find%20Minimum%20in%20Rotated%20Sorted%20Array) | `Array`, `Binary Search` |
-| 177 | [Nth Highest Salary](https://github.com/doocs/leetcode/tree/master/solution/177.Nth%20Highest%20Salary) | `SQL` |
-| 178 | [Rank Scores](https://github.com/doocs/leetcode/tree/master/solution/178.Rank%20Scores) | `SQL` |
-| 180 | [Consecutive Numbers](https://github.com/doocs/leetcode/tree/master/solution/180.Consecutive%20Numbers) | `SQL` |
-| 184 | [Department Highest Salary](https://github.com/doocs/leetcode/tree/master/solution/184.Department%20Highest%20Salary) | `SQL` |
-| 328 | [Odd Even Linked List](https://github.com/doocs/leetcode/tree/master/solution/328.Odd%20Even%20Linked%20List) | `Linked List` |
+| 002 | [Add Two Numbers](https://github.com/doocs/leetcode/tree/master/solution/0002.Add%20Two%20Numbers) | `Linked List`, `Math` |
+| 003 | [Longest Substring Without Repeating Characters](https://github.com/doocs/leetcode/tree/master/solution/0003.Longest%20Substring%20Without%20Repeating%20Characters) | `Hash Table`, `Two Pointers`, `String` |
+| 005 | [Longest Palindromic Substring](https://github.com/doocs/leetcode/tree/master/solution/0005.Longest%20Palindromic%20Substring) | `String`, `Dynamic Programming` |
+| 015 | [3Sum](https://github.com/doocs/leetcode/tree/master/solution/0015.3Sum) | `Array`, `Two Pointers` |
+| 018 | [4Sum](https://github.com/doocs/leetcode/tree/master/solution/0018.4Sum) | `Array`, `Hash Table`, `Two Pointers` |
+| 019 | [Remove Nth Node From End of List](https://github.com/doocs/leetcode/tree/master/solution/0019.Remove%20Nth%20Node%20From%20End%20of%20List) | `Linked List`, `Two Pointers` |
+| 024 | [Swap Nodes in Pairs](https://github.com/doocs/leetcode/tree/master/solution/0024.Swap%20Nodes%20in%20Pairs) | `Linked List` |
+| 031 | [Next Permutation](https://github.com/doocs/leetcode/tree/master/solution/0031.Next%20Permutation) | `Array` |
+| 046 | [Permutations](https://github.com/doocs/leetcode/tree/master/solution/0046.Permutations) | `Backtracking` |
+| 047 | [Permutations II](https://github.com/doocs/leetcode/tree/master/solution/0047.Permutations%20II) | `Backtracking` |
+| 054 | [Spiral Matrix](https://github.com/doocs/leetcode/tree/master/solution/0054.Spiral%20Matrix) | `Array` |
+| 059 | [Spiral Matrix II](https://github.com/doocs/leetcode/tree/master/solution/0059.Spiral%20Matrix%20II) | `Array` |
+| 061 | [Rotate List](https://github.com/doocs/leetcode/tree/master/solution/0061.Rotate%20List) | `Linked List`, `Two Pointers` |
+| 062 | [Unique Paths](https://github.com/doocs/leetcode/tree/master/solution/0062.Unique%20Paths) | `Array`, `Dynamic Programming` |
+| 063 | [Unique Paths II](https://github.com/doocs/leetcode/tree/master/solution/0063.Unique%20Paths%20II) | `Array`, `Dynamic Programming` |
+| 075 | [Sort Colors](https://github.com/doocs/leetcode/tree/master/solution/0075.Sort%20Colors) | `Array`, `Two Pointers`, `Sort` |
+| 082 | [Remove Duplicates from Sorted List II](https://github.com/doocs/leetcode/tree/master/solution/0082.Remove%20Duplicates%20from%20Sorted%20List%20II) | `Linked List` |
+| 086 | [Partition List](https://github.com/doocs/leetcode/tree/master/solution/0086.Partition%20List) | `Linked List`, `Two Pointers` |
+| 092 | [Reverse Linked List II](https://github.com/doocs/leetcode/tree/master/solution/0092.Reverse%20Linked%20List%20II) | `Linked List` |
+| 094 | [Binary Tree Inorder Traversal](https://github.com/doocs/leetcode/tree/master/solution/0094.Binary%20Tree%20Inorder%20Traversal) | `Hash Table`, `Stack`, `Tree` |
+| 102 | [Binary Tree Level Order Traversal](https://github.com/doocs/leetcode/tree/master/solution/0102.Binary%20Tree%20Level%20Order%20Traversal) | `Tree`, `Breadth-first Search` |
+| 127 | [Word Ladder](https://github.com/doocs/leetcode/tree/master/solution/0127.Word%20Ladder) | `Breadth-first Search` |
+| 130 | [Surrounded Regions](https://github.com/doocs/leetcode/tree/master/solution/0130.Surrounded%20Regions) | `Depth-first Search`, `Breadth-first Search`, `Union Find` |
+| 137 | [Single Number II](https://github.com/doocs/leetcode/tree/master/solution/0137.Single%20Number%20II) | `Bit Manipulation` |
+| 142 | [Linked List Cycle II](https://github.com/doocs/leetcode/tree/master/solution/0142.Linked%20List%20Cycle%20II) | `Linked List`, `Two Pointers` |
+| 143| [Reorder List](https://github.com/doocs/leetcode/tree/master/solution/0143.Reorder%20List) | `Linked List` |
+| 144 | [Binary Tree Preorder Traversal](https://github.com/doocs/leetcode/tree/master/solution/0144.Binary%20Tree%20Preorder%20Traversal) | `Stack`, `Tree` |
+| 150 | [Evaluate Reverse Polish Notation](https://github.com/doocs/leetcode/tree/master/solution/0150.Evaluate%20Reverse%20Polish%20Notation) | `Stack` |
+| 153 | [Find Minimum in Rotated Sorted Array](https://github.com/doocs/leetcode/tree/master/solution/0153.Find%20Minimum%20in%20Rotated%20Sorted%20Array) | `Array`, `Binary Search` |
+| 177 | [Nth Highest Salary](https://github.com/doocs/leetcode/tree/master/solution/0177.Nth%20Highest%20Salary) | `SQL` |
+| 178 | [Rank Scores](https://github.com/doocs/leetcode/tree/master/solution/0178.Rank%20Scores) | `SQL` |
+| 180 | [Consecutive Numbers](https://github.com/doocs/leetcode/tree/master/solution/0180.Consecutive%20Numbers) | `SQL` |
+| 184 | [Department Highest Salary](https://github.com/doocs/leetcode/tree/master/solution/0184.Department%20Highest%20Salary) | `SQL` |
+| 328 | [Odd Even Linked List](https://github.com/doocs/leetcode/tree/master/solution/0328.Odd%20Even%20Linked%20List) | `Linked List` |
 
 
 ### Hard
 
 | # | Title | Tags |
 |---|---|---|
-| 004 | [Median of Two Sorted Arrays](https://github.com/doocs/leetcode/tree/master/solution/004.Median%20of%20Two%20Sorted%20Arrays) | `Array`, `Binary Search`, `Divide and Conquer` |
-| 023 | [Merge k Sorted Lists](https://github.com/doocs/leetcode/tree/master/solution/023.Merge%20k%20Sorted%20Lists) | `Linked List`, `Divide and Conquer`, `Heap` |
-| 032 | [Longest Valid Parentheses](https://github.com/doocs/leetcode/tree/master/solution/032.Longest%20Valid%20Parentheses) | `String`, `Dynamic Programming` |
-| 084 | [Largest Rectangle in Histogram](https://github.com/doocs/leetcode/tree/master/solution/084.Largest%20Rectangle%20in%20Histogram) | `Array`, `Stack` |
-| 145 | [Binary Tree Postorder Traversal](https://github.com/doocs/leetcode/tree/master/solution/145.Binary%20Tree%20Postorder%20Traversal) | `Stack`, `Tree` |
-| 295 | [Find Median from Data Stream](https://github.com/doocs/leetcode/tree/master/solution/295.Find%20Median%20from%20Data%20Stream) | `Heap`, `Design` |
+| 004 | [Median of Two Sorted Arrays](https://github.com/doocs/leetcode/tree/master/solution/0004.Median%20of%20Two%20Sorted%20Arrays) | `Array`, `Binary Search`, `Divide and Conquer` |
+| 023 | [Merge k Sorted Lists](https://github.com/doocs/leetcode/tree/master/solution/0023.Merge%20k%20Sorted%20Lists) | `Linked List`, `Divide and Conquer`, `Heap` |
+| 032 | [Longest Valid Parentheses](https://github.com/doocs/leetcode/tree/master/solution/0032.Longest%20Valid%20Parentheses) | `String`, `Dynamic Programming` |
+| 084 | [Largest Rectangle in Histogram](https://github.com/doocs/leetcode/tree/master/solution/0084.Largest%20Rectangle%20in%20Histogram) | `Array`, `Stack` |
+| 145 | [Binary Tree Postorder Traversal](https://github.com/doocs/leetcode/tree/master/solution/0145.Binary%20Tree%20Postorder%20Traversal) | `Stack`, `Tree` |
+| 295 | [Find Median from Data Stream](https://github.com/doocs/leetcode/tree/master/solution/0295.Find%20Median%20from%20Data%20Stream) | `Heap`, `Design` |
 
 
 ## Contributions
diff --git a/Rename folder.go b/Rename folder.go
new file mode 100644
index 0000000000000..0bb63a8cee625
--- /dev/null
+++ b/Rename folder.go	
@@ -0,0 +1,33 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"strings"
+)
+
+func main() {
+	myfolder := "D:/workspace/bluesword/leetcode/solution"
+	files, _ := ioutil.ReadDir(myfolder)
+	for _, file := range files {
+		if file.IsDir() {
+			name := file.Name()
+			split := strings.Split(name, ".")
+			os.Rename(myfolder+"/"+name, myfolder+"/"+"0"+split[0]+"."+strings.TrimSpace(split[1]))
+		} else {
+			continue
+		}
+	}
+
+	/*file := "C:\\\\log\\\\2013.log"                        //源文件路径
+	err := os.Rename(file, "C:\\\\log\\\\install.txt")     //重命名 C:\\log\\2013.log 文件为install.txt
+	if err != nil {
+		//如果重命名文件失败,则输出错误 file rename Error!
+		fmt.Println("file rename Error!")
+		//打印错误详细信息
+		fmt.Printf("%s", err)
+	} else {
+		//如果文件重命名成功,则输出 file rename OK!
+		fmt.Println("file rename OK!")
+	}*/
+}
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diff --git a/solution/0033.Search in Rotated Sorted Array/Solution.java b/solution/0033.Search in Rotated Sorted Array/Solution.java
new file mode 100644
index 0000000000000..d9cda3eb0524c
--- /dev/null
+++ b/solution/0033.Search in Rotated Sorted Array/Solution.java	
@@ -0,0 +1,17 @@
+class Solution {
+    public int search(int[] A, int target) {
+        if (A == null || A.length == 0) return -1;
+        int low = 0,high = A.length - 1;
+        while (low <= high) {
+            int mid = (low + high) / 2;
+            if (target < A[mid]) {
+                if (A[mid] >= A[high] && target < A[low]) low = mid + 1;
+                else high = mid - 1;
+            } else if (target > A[mid]) {
+                if (A[low] >= A[mid] && target > A[high]) high = mid - 1;
+                else low = mid + 1;
+            } else return mid;
+        }
+        return -1;
+    }
+}
\ No newline at end of file
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