Add: new

README.md

@@ -62,6 +62,7 @@ LeetCode Problems' Solutions
 
 | # | Title | Solution | Difficulty |
 | :-: | - | - | :-: |
+| <span id="1205">1205</span> | [Monthly Transactions II](https://leetcode.com/problems/monthly-transactions-ii) 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/monthly-transactions-ii) | Medium |
 | <span id="1204">1204</span> | [Last Person to Fit in the Elevator](https://leetcode.com/problems/last-person-to-fit-in-the-elevator) 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/last-person-to-fit-in-the-elevator) | Medium |
 | <span id="1203">1203</span> | [Sort Items by Groups Respecting Dependencies](https://leetcode.com/problems/sort-items-by-groups-respecting-dependencies "项目管理") | [Go](https://github.com/openset/leetcode/tree/master/problems/sort-items-by-groups-respecting-dependencies) | Hard |
 | <span id="1202">1202</span> | [Smallest String With Swaps](https://leetcode.com/problems/smallest-string-with-swaps "交换字符串中的元素") | [Go](https://github.com/openset/leetcode/tree/master/problems/smallest-string-with-swaps) | Medium |
@@ -71,7 +72,7 @@ LeetCode Problems' Solutions
 | <span id="1198">1198</span> | [Find Smallest Common Element in All Rows](https://leetcode.com/problems/find-smallest-common-element-in-all-rows "找出所有行中最小公共元素") 🔒 | [Go](https://github.com/openset/leetcode/tree/master/problems/find-smallest-common-element-in-all-rows) | Medium |
 | <span id="1197">1197</span> | [Minimum Knight Moves](https://leetcode.com/problems/minimum-knight-moves "进击的骑士") 🔒 | [Go](https://github.com/openset/leetcode/tree/master/problems/minimum-knight-moves) | Medium |
 | <span id="1196">1196</span> | [How Many Apples Can You Put into the Basket](https://leetcode.com/problems/how-many-apples-can-you-put-into-the-basket "最多可以买到的苹果数量") 🔒 | [Go](https://github.com/openset/leetcode/tree/master/problems/how-many-apples-can-you-put-into-the-basket) | Easy |
-| <span id="1195">1195</span> | [Fizz Buzz Multithreaded](https://leetcode.com/problems/fizz-buzz-multithreaded) | [Go](https://github.com/openset/leetcode/tree/master/problems/fizz-buzz-multithreaded) | Medium |
+| <span id="1195">1195</span> | [Fizz Buzz Multithreaded](https://leetcode.com/problems/fizz-buzz-multithreaded "交替打印字符串") | [Go](https://github.com/openset/leetcode/tree/master/problems/fizz-buzz-multithreaded) | Medium |
 | <span id="1194">1194</span> | [Tournament Winners](https://leetcode.com/problems/tournament-winners) 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/tournament-winners) | Hard |
 | <span id="1193">1193</span> | [Monthly Transactions I](https://leetcode.com/problems/monthly-transactions-i "每月交易 I") 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/monthly-transactions-i) | Medium |
 | <span id="1192">1192</span> | [Critical Connections in a Network](https://leetcode.com/problems/critical-connections-in-a-network "查找集群内的「关键连接」") | [Go](https://github.com/openset/leetcode/tree/master/problems/critical-connections-in-a-network) | Hard |
@@ -123,7 +124,7 @@ LeetCode Problems' Solutions
 | <span id="1146">1146</span> | [Snapshot Array](https://leetcode.com/problems/snapshot-array "快照数组") | [Go](https://github.com/openset/leetcode/tree/master/problems/snapshot-array) | Medium |
 | <span id="1145">1145</span> | [Binary Tree Coloring Game](https://leetcode.com/problems/binary-tree-coloring-game "二叉树着色游戏") | [Go](https://github.com/openset/leetcode/tree/master/problems/binary-tree-coloring-game) | Medium |
 | <span id="1144">1144</span> | [Decrease Elements To Make Array Zigzag](https://leetcode.com/problems/decrease-elements-to-make-array-zigzag "递减元素使数组呈锯齿状") | [Go](https://github.com/openset/leetcode/tree/master/problems/decrease-elements-to-make-array-zigzag) | Medium |
-| <span id="1143">1143</span> | [Longest Common Subsequence](https://leetcode.com/problems/longest-common-subsequence) | [Go](https://github.com/openset/leetcode/tree/master/problems/longest-common-subsequence) | Medium |
+| <span id="1143">1143</span> | [Longest Common Subsequence](https://leetcode.com/problems/longest-common-subsequence "最长公共子序列") | [Go](https://github.com/openset/leetcode/tree/master/problems/longest-common-subsequence) | Medium |
 | <span id="1142">1142</span> | [User Activity for the Past 30 Days II](https://leetcode.com/problems/user-activity-for-the-past-30-days-ii) 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/user-activity-for-the-past-30-days-ii) | Easy |
 | <span id="1141">1141</span> | [User Activity for the Past 30 Days I](https://leetcode.com/problems/user-activity-for-the-past-30-days-i) 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/user-activity-for-the-past-30-days-i) | Easy |
 | <span id="1140">1140</span> | [Stone Game II](https://leetcode.com/problems/stone-game-ii "石子游戏 II") | [Go](https://github.com/openset/leetcode/tree/master/problems/stone-game-ii) | Medium |
@@ -196,7 +197,7 @@ LeetCode Problems' Solutions
 | <span id="1073">1073</span> | [Adding Two Negabinary Numbers](https://leetcode.com/problems/adding-two-negabinary-numbers "负二进制数相加") | [Go](https://github.com/openset/leetcode/tree/master/problems/adding-two-negabinary-numbers) | Medium |
 | <span id="1072">1072</span> | [Flip Columns For Maximum Number of Equal Rows](https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows "按列翻转得到最大值等行数") | [Go](https://github.com/openset/leetcode/tree/master/problems/flip-columns-for-maximum-number-of-equal-rows) | Medium |
 | <span id="1071">1071</span> | [Greatest Common Divisor of Strings](https://leetcode.com/problems/greatest-common-divisor-of-strings "字符串的最大公因子") | [Go](https://github.com/openset/leetcode/tree/master/problems/greatest-common-divisor-of-strings) | Easy |
-| <span id="1070">1070</span> | [Product Sales Analysis III](https://leetcode.com/problems/product-sales-analysis-iii) 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/product-sales-analysis-iii) | Medium |
+| <span id="1070">1070</span> | [Product Sales Analysis III](https://leetcode.com/problems/product-sales-analysis-iii "产品销售分析 III") 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/product-sales-analysis-iii) | Medium |
 | <span id="1069">1069</span> | [Product Sales Analysis II](https://leetcode.com/problems/product-sales-analysis-ii "产品销售分析 II") 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/product-sales-analysis-ii) | Easy |
 | <span id="1068">1068</span> | [Product Sales Analysis I](https://leetcode.com/problems/product-sales-analysis-i "产品销售分析 I") 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/product-sales-analysis-i) | Easy |
 | <span id="1067">1067</span> | [Digit Count in Range](https://leetcode.com/problems/digit-count-in-range "范围内的数字计数") 🔒 | [Go](https://github.com/openset/leetcode/tree/master/problems/digit-count-in-range) | Hard |

problems/fizz-buzz-multithreaded/README.md

@@ -9,7 +9,7 @@
 
 [Next >](https://github.com/openset/leetcode/tree/master/problems/how-many-apples-can-you-put-into-the-basket "How Many Apples Can You Put into the Basket")
 
-## [1195. Fizz Buzz Multithreaded (Medium)](https://leetcode.com/problems/fizz-buzz-multithreaded "")
+## [1195. Fizz Buzz Multithreaded (Medium)](https://leetcode.com/problems/fizz-buzz-multithreaded "交替打印字符串")
 
 <p>Write a program that outputs the string representation of numbers from 1 to&nbsp;<i>n</i>, however:</p>
 
@@ -40,7 +40,3 @@ class FizzBuzz {
 	<li>Thread C will call <code>fizzbuzz()</code>&nbsp;to check for divisibility of 3 and 5 and outputs&nbsp;<code>fizzbuzz</code>.</li>
 	<li>Thread D will call <code>number()</code> which should only output the numbers.</li>
 </ol>
-
-### Similar Questions
-  1. [Fizz Buzz](https://github.com/openset/leetcode/tree/master/problems/fizz-buzz) (Easy)
-  1. [Print Zero Even Odd](https://github.com/openset/leetcode/tree/master/problems/print-zero-even-odd) (Medium)

problems/game-play-analysis-iv/README.md

@@ -9,7 +9,7 @@
 
 [Next >](https://github.com/openset/leetcode/tree/master/problems/student-attendance-record-i "Student Attendance Record I")
 
-## [550. Game Play Analysis IV (Medium)](https://leetcode.com/problems/game-play-analysis-iv "")
+## [550. Game Play Analysis IV (Medium)](https://leetcode.com/problems/game-play-analysis-iv "游戏玩法分析 IV")
 
 
 

problems/last-person-to-fit-in-the-elevator/README.md

@@ -7,7 +7,7 @@
 
 [< Previous](https://github.com/openset/leetcode/tree/master/problems/sort-items-by-groups-respecting-dependencies "Sort Items by Groups Respecting Dependencies")
 
-Next >
+[Next >](https://github.com/openset/leetcode/tree/master/problems/monthly-transactions-ii "Monthly Transactions II")
 
 ## [1204. Last Person to Fit in the Elevator (Medium)](https://leetcode.com/problems/last-person-to-fit-in-the-elevator "")
 

problems/longest-common-subsequence/README.md

@@ -9,7 +9,7 @@
 
 [Next >](https://github.com/openset/leetcode/tree/master/problems/decrease-elements-to-make-array-zigzag "Decrease Elements To Make Array Zigzag")
 
-## [1143. Longest Common Subsequence (Medium)](https://leetcode.com/problems/longest-common-subsequence "")
+## [1143. Longest Common Subsequence (Medium)](https://leetcode.com/problems/longest-common-subsequence "最长公共子序列")
 
 <p>Given two strings <code>text1</code> and <code>text2</code>, return the length of their longest common subsequence.</p>
 
@@ -53,14 +53,6 @@
 	<li>The input strings consist of lowercase English characters only.</li>
 </ul>
 
-### Related Topics
-  [[Dynamic Programming](https://github.com/openset/leetcode/tree/master/tag/dynamic-programming/README.md)]
-
-### Similar Questions
-  1. [Longest Palindromic Subsequence](https://github.com/openset/leetcode/tree/master/problems/longest-palindromic-subsequence) (Medium)
-  1. [Delete Operation for Two Strings](https://github.com/openset/leetcode/tree/master/problems/delete-operation-for-two-strings) (Medium)
-  1. [Shortest Common Supersequence ](https://github.com/openset/leetcode/tree/master/problems/shortest-common-supersequence) (Hard)
-
 ### Hints
 <details>
 <summary>Hint 1</summary>

problems/monthly-transactions-ii/README.md

@@ -0,0 +1,14 @@
+<!--|This file generated by command(leetcode description); DO NOT EDIT.    |-->
+<!--+----------------------------------------------------------------------+-->
+<!--|@author    openset <openset.wang@gmail.com>                           |-->
+<!--|@link      https://github.com/openset                                 |-->
+<!--|@home      https://github.com/openset/leetcode                        |-->
+<!--+----------------------------------------------------------------------+-->
+
+[< Previous](https://github.com/openset/leetcode/tree/master/problems/last-person-to-fit-in-the-elevator "Last Person to Fit in the Elevator")
+
+Next >
+
+## [1205. Monthly Transactions II (Medium)](https://leetcode.com/problems/monthly-transactions-ii "")
+
+

problems/monthly-transactions-ii/mysql_schemas.sql

@@ -0,0 +1,14 @@
+create table if not exists Transactions (id int, country varchar(4), state enum('approved', 'declined'), amount int, trans_date date)
+;
+create table if not exists Chargebacks (trans_id int, trans_date date)
+;
+Truncate table Transactions;
+insert into Transactions (id, country, state, amount, trans_date) values ('101', 'US', 'approved', '1000', '2019-05-18');
+insert into Transactions (id, country, state, amount, trans_date) values ('102', 'US', 'declined', '2000', '2019-05-19');
+insert into Transactions (id, country, state, amount, trans_date) values ('103', 'US', 'approved', '3000', '2019-06-10');
+insert into Transactions (id, country, state, amount, trans_date) values ('104', 'US', 'declined', '4000', '2019-06-13');
+insert into Transactions (id, country, state, amount, trans_date) values ('105', 'US', 'approved', '5000', '2019-06-15');
+Truncate table Chargebacks;
+insert into Chargebacks (trans_id, trans_date) values ('102', '2019-05-29');
+insert into Chargebacks (trans_id, trans_date) values ('101', '2019-06-30');
+insert into Chargebacks (trans_id, trans_date) values ('105', '2019-09-18');

problems/product-sales-analysis-iii/README.md

@@ -9,6 +9,6 @@
 
 [Next >](https://github.com/openset/leetcode/tree/master/problems/greatest-common-divisor-of-strings "Greatest Common Divisor of Strings")
 
-## [1070. Product Sales Analysis III (Medium)](https://leetcode.com/problems/product-sales-analysis-iii "")
+## [1070. Product Sales Analysis III (Medium)](https://leetcode.com/problems/product-sales-analysis-iii "产品销售分析 III")
 
 

problems/sort-items-by-groups-respecting-dependencies/README.md

@@ -57,6 +57,7 @@
 ### Related Topics
   [[Depth-first Search](https://github.com/openset/leetcode/tree/master/tag/depth-first-search/README.md)]
   [[Graph](https://github.com/openset/leetcode/tree/master/tag/graph/README.md)]
+  [[Topological Sort](https://github.com/openset/leetcode/tree/master/tag/topological-sort/README.md)]
 
 ### Hints
 <details>

readme/301-600.md

@@ -311,7 +311,7 @@ LeetCode Problems' Solutions
 | <span id="547">547</span> | [Friend Circles](https://leetcode.com/problems/friend-circles "朋友圈") | [Go](https://github.com/openset/leetcode/tree/master/problems/friend-circles) | Medium |
 | <span id="548">548</span> | [Split Array with Equal Sum](https://leetcode.com/problems/split-array-with-equal-sum "将数组分割成和相等的子数组") 🔒 | [Go](https://github.com/openset/leetcode/tree/master/problems/split-array-with-equal-sum) | Medium |
 | <span id="549">549</span> | [Binary Tree Longest Consecutive Sequence II](https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii "二叉树中最长的连续序列") 🔒 | [Go](https://github.com/openset/leetcode/tree/master/problems/binary-tree-longest-consecutive-sequence-ii) | Medium |
-| <span id="550">550</span> | [Game Play Analysis IV](https://leetcode.com/problems/game-play-analysis-iv) 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/game-play-analysis-iv) | Medium |
+| <span id="550">550</span> | [Game Play Analysis IV](https://leetcode.com/problems/game-play-analysis-iv "游戏玩法分析 IV") 🔒 | [MySQL](https://github.com/openset/leetcode/tree/master/problems/game-play-analysis-iv) | Medium |
 | <span id="551">551</span> | [Student Attendance Record I](https://leetcode.com/problems/student-attendance-record-i "学生出勤记录 I") | [Go](https://github.com/openset/leetcode/tree/master/problems/student-attendance-record-i) | Easy |
 | <span id="552">552</span> | [Student Attendance Record II](https://leetcode.com/problems/student-attendance-record-ii "学生出勤记录 II") | [Go](https://github.com/openset/leetcode/tree/master/problems/student-attendance-record-ii) | Hard |
 | <span id="553">553</span> | [Optimal Division](https://leetcode.com/problems/optimal-division "最优除法") | [Go](https://github.com/openset/leetcode/tree/master/problems/optimal-division) | Medium |