（1）查看选中的数据库中所有的表（因为此时是我刚新建的表，所以是空的（empty））

Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 246913578, which ...

P1002 过河卒 题目描述 棋盘上AAA点有一个过河卒，需要走到目标BBB点。卒行走的规则：可以向下、或者向右。同时在棋盘上CCC点有一个对方的马，该马所在的点和所有跳跃一步可达的点称为对方马的控制点。因此称之为“马拦过...

我们要解决的无非是是否把下一个元素加入，是否开始维护一个新的子段。我们开一个数组b[] , 记录b[i]，表示以a[i]结尾的全部子段中 最大的那个的 和。 这样我们就可以根据它b[i] 的正负，去考虑是否把下一个元素加入到当前...

描述：1.10个员工ABCDEFGHIJ进入公司后分配到各个部门；2.员工信息有：姓名、工资组成；部门信息有：策划、美术、研发；3.随机给10名员工分配部门和工资；4.通过Multimap进行信息的输入；key：部门编号，value：员工5.分部门显示员工信息；sr...

typedef struct {unsigned short DataLen;unsigned char LenLen; unsigned short Seat; }__8583Information;

To avoid signed/unsigned confusion. To enable better optimization. To enable better error detection. To avoid the pitfalls with auto and int.

Choosing unsigned implies many changes to the usual behavior of integers, including modulo arithmetic, can suppress warnings related to overflow, and opens the ...

Because most arithmetic is assumed to be signed; x - y yields a negative number when y > x except in the rare cases where you really want modulo arithmetic.

ES.101: Use unsigned types for bit manipulation