sudo fdisk -l
sudo lsblk
sudo mkfs -t ext4 /dev/mmcblk1 # 格式化
sudo mount /dev/mmcblk1 /home/root/data/

sudo umount /dev/mmcblk1

sudo blkid # 获取UUID
sudo vim /etc/fstab
UUID=6b7eaf8d-0b66-6e26-bdff-fa63f7dd1126 /u01 ext4 defaults 1 1

给定两个数组，编写一个函数来计算它们的交集。

示例 1：

输入：nums1 = [1,2,2,1], nums2 = [2,2]
输出：[2,2]
示例 2:

输入：nums1 = [4,9,5], nums2 = [9,4,9,8,4]
输出：[4,9]
 

说明：

输出结果中每个元素出现的次数，应与元素在两个数组中出现次数的最小值一致。
我们可以不考虑输出结果的顺序。
进阶：

如果给定的数组已经排好序呢？你将如何优化你的算法？
如果 nums1 的大小比 nums2 小很多，哪种方法更优？
如果 nums2 的元素存储在磁盘上，内存是有限的，并且你不能一次加载所有的元素到内存中，你该怎么办？


来源：力扣（LeetCode）
链接：https://leetcode-cn.com/problems/intersection-of-two-arrays-ii
著作权归领扣网络所有。商业转载请联系官方授权，非商业转载请注明出处。

class Solution:
    def intersect(self, nums1: List[int], nums2: List[int]) -> List[int]:
        result = []
        for i2, n2 in enumerate(nums2):
            for i1, n1 in enumerate(nums1):
                if n1 == n2:
                    result.append(n2)
                    nums1.pop(i1)
                    break
       return result          

class Solution:
    def intersect(self, nums1: List[int], nums2: List[int]) -> List[int]:
        result = []
        len_num1 = len(nums1)
        len_num2 = len(nums2)
        if len_num1 >= len_num2:
            for i2, n2 in enumerate(nums2):
                for i1, n1 in enumerate(nums1):
                    if n1 == n2:
                        result.append(n2)
                        nums1.pop(i1)
                        break
        else:
            for i1, n1 in enumerate(nums1):
                for i2, n2 in enumerate(nums2):
                    if n1 == n2:
                        result.append(n2)
                        nums2.pop(i2)
                        break
        return result  

# The MariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 0. "/etc/mysql/my.cnf" symlinks to this file, reason why all the rest is read.
# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
# 4. "~/.my.cnf" to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# If you are new to MariaDB, check out https://mariadb.com/kb/en/basic-mariadb-articles/

#
# This group is read both by the client and the server
# use it for options that affect everything
#
[client-server]
# Port or socket location where to connect
# port = 3306
socket = /run/mysqld/mysqld.sock

# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/
[mysqld]
server-id=1
log-bin=mysql-bin
binlog_format = mixed
binlog-do-db=event_analysis 
binlog-ignore-db =mysql
binlog-ignore-db =information_schema
binlog-ignore-db =performance_schema

replicate-do-db=event_analysis
replicate-ignore-db=mysql
replicate-ignore-db=information_schema
replicate-ignore-db=performance_schema
read-only=0

relay_log=mysqld-relay-bin
log-slave-updates=ON
auto-increment-increment = 2
auto-increment-offset = 1