feat: add new lc problems and update summary

Author: yanglbme

solution/0100-0199/0192.Word Frequency/README.md

@@ -46,25 +46,11 @@ day 1
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
 <!-- 这里可写当前语言的特殊实现逻辑 -->
 
-```python
-
-```
-
-### **Java**
-
-<!-- 这里可写当前语言的特殊实现逻辑 -->
-
-```java
-
-```
-
-### **...**
-
-```
+```sh
 
 ```
 

solution/0100-0199/0192.Word Frequency/README_EN.md

@@ -71,21 +71,9 @@ day 1
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
-```python
-
-```
-
-### **Java**
-
-```java
-
-```
-
-### **...**
-
-```
+```sh
 
 ```
 

solution/0100-0199/0193.Valid Phone Numbers/README.md

@@ -38,26 +38,12 @@
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
 <!-- 这里可写当前语言的特殊实现逻辑 -->
 
-```python
+```sh
 
 ```
 
-### **Java**
-
-<!-- 这里可写当前语言的特殊实现逻辑 -->
-
-```java
-
-```
-
-### **...**
-
-```
-
-```
-
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0193.Valid Phone Numbers/README_EN.md

@@ -32,21 +32,9 @@
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
-```python
-
-```
-
-### **Java**
-
-```java
-
-```
-
-### **...**
-
-```
+```sh
 
 ```
 

solution/0100-0199/0194.Transpose File/README.md

@@ -36,26 +36,12 @@ age 21 30
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
 <!-- 这里可写当前语言的特殊实现逻辑 -->
 
-```python
+```sh
 
 ```
 
-### **Java**
-
-<!-- 这里可写当前语言的特殊实现逻辑 -->
-
-```java
-
-```
-
-### **...**
-
-```
-
-```
-
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0194.Transpose File/README_EN.md

@@ -30,21 +30,9 @@ age 21 30
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
-```python
-
-```
-
-### **Java**
-
-```java
-
-```
-
-### **...**
-
-```
+```sh
 
 ```
 

solution/0100-0199/0195.Tenth Line/README.md

@@ -40,26 +40,12 @@ Line 10
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
 <!-- 这里可写当前语言的特殊实现逻辑 -->
 
-```python
+```sh
 
 ```
 
-### **Java**
-
-<!-- 这里可写当前语言的特殊实现逻辑 -->
-
-```java
-
-```
-
-### **...**
-
-```
-
-```
-
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0195.Tenth Line/README_EN.md

@@ -66,21 +66,9 @@ Line 10
 
 <!-- tabs:start -->
 
-### **Python3**
+### **Bash**
 
-```python
-
-```
-
-### **Java**
-
-```java
-
-```
-
-### **...**
-
-```
+```sh
 
 ```
 

solution/1800-1899/1890.The Latest Login in 2020/README.md

@@ -0,0 +1,115 @@
+# [1890. The Latest Login in 2020](https://leetcode-cn.com/problems/the-latest-login-in-2020)
+
+[English Version](/solution/1800-1899/1890.The%20Latest%20Login%20in%202020/README_EN.md)
+
+## 题目描述
+
+<!-- 这里写题目描述 -->
+
+<p>Table: <code>Logins</code></p>
+
+<pre>
+
++----------------+----------+
+
+| Column Name    | Type     |
+
++----------------+----------+
+
+| user_id        | int      |
+
+| time_stamp     | datetime |
+
++----------------+----------+
+
+(user_id, time_stamp) is the primary key for this table.
+
+Each row contains information about the login time for the user with ID user_id.
+
+</pre>
+
+<p>&nbsp;</p>
+
+<p>Write an SQL query to report the <strong>latest</strong> login for all users in the year <code>2020</code>. Do <strong>not</strong> include the users who did not login in <code>2020</code>.</p>
+
+<p>Return the result table <strong>in any order</strong>.</p>
+
+<p>The query result format is in the following example:</p>
+
+<p>&nbsp;</p>
+
+<pre>
+
+Logins table:
+
++---------+---------------------+
+
+| user_id | time_stamp          |
+
++---------+---------------------+
+
+| 6       | 2020-06-30 15:06:07 |
+
+| 6       | 2021-04-21 14:06:06 |
+
+| 6       | 2019-03-07 00:18:15 |
+
+| 8       | 2020-02-01 05:10:53 |
+
+| 8       | 2020-12-30 00:46:50 |
+
+| 2       | 2020-01-16 02:49:50 |
+
+| 2       | 2019-08-25 07:59:08 |
+
+| 14      | 2019-07-14 09:00:00 |
+
+| 14      | 2021-01-06 11:59:59 |
+
++---------+---------------------+
+
+
+
+Result table:
+
++---------+---------------------+
+
+| user_id | last_stamp          |
+
++---------+---------------------+
+
+| 6       | 2020-06-30 15:06:07 |
+
+| 8       | 2020-12-30 00:46:50 |
+
+| 2       | 2020-01-16 02:49:50 |
+
++---------+---------------------+
+
+
+
+User 6 logged into their account 3 times but only once in 2020, so we include this login in the result table.
+
+User 8 logged into their account 2 times in 2020, once in February and once in December. We include only the latest one (December) in the result table.
+
+User 2 logged into their account 2 times but only once in 2020, so we include this login in the result table.
+
+User 14 did not login in 2020, so we do not include them in the result table.
+
+</pre>
+
+## 解法
+
+<!-- 这里可写通用的实现逻辑 -->
+
+<!-- tabs:start -->
+
+### **SQL**
+
+<!-- 这里可写当前语言的特殊实现逻辑 -->
+
+```sql
+
+```
+
+<!-- tabs:end -->