题目1.8皇后·改问题描述规则同8皇后问题但是棋盘上每格都有一个数字要求八皇后所在格子数字之和最大。输入说明一个8*8的棋盘。数据规模和约定棋盘上的数字范围0~99输出说明所能得到的最大数字和输入范例1 2 3 4 5 6 7 89 10 11 12 13 14 15 1617 18 19 20 21 22 23 2425 26 27 28 29 30 31 3233 34 35 36 37 38 39 4041 42 43 44 45 46 47 4848 50 51 52 53 54 55 5657 58 59 60 61 62 63 64输出范例260个人总结1.8皇后就是删去对角线对角线分别用坐标和和坐标差表示。深搜到深度就和最大值比较大小#include iostream #include algorithm using namespace std; int board[8][8]; bool col[8] {false}; bool diag1[15] {false}; bool diag2[15] {false}; int max_sum 0; void dfs(int row, int current_sum) { if (row 8) { max_sum max(max_sum, current_sum); return; } for (int c 0; c 8; c) { int d1 row - c 7; int d2 row c; if (!col[c] !diag1[d1] !diag2[d2]) { col[c] true; diag1[d1] true; diag2[d2] true; dfs(row 1, current_sum board[row][c]); col[c] false; diag1[d1] false; diag2[d2] false; } } } int main() { for (int i 0; i 8; i) { for (int j 0; j 8; j) { cin board[i][j]; } } dfs(0, 0); cout max_sum endl; return 0; }Solid state storage (sometimes called flash memory) stores data in erasable, rewritable circuitry. A memory card is a flat, solid state storage medium commonly used to transfer files from digital cameras and media players to computers. A solid state drive (SSD) is a package of flash memory that can be used as a substitute for a hard disk drive. A USB flash drive is a portable storage device that plugs directly into a computers system unit using a built-in USB connector.固态存储也称作闪存可擦写、可编程的电路中存储数据的存储设备。存储卡是一种扁平的固态存储介质通常用于将数码照相机和媒体播放器中的文件传输至电脑。固态硬盘 (SSD)是一组闪存芯片的封装体可用作硬盘驱动器HDD的替代装置。U 盘是一种便携式存储设备通过其内置的 USB 接口直接与电脑主机相连。To function, hardware requires physical connections that allow components to communicate and interact. A bus provides a common interconnected system composed of a group of wires or circuitry that coordinates and moves information between the internal parts of a computer. A computer bus consists of two channels: one that the CPU uses to locate data,called the address bus, and another to send the data to that address, called the data bus. A bus is characterized by two features: how much information it can manipulate at one time, called the bus width, and how quickly it can transfer these data.要正常工作硬件需要物理连接使各个部件能够通信并相互作用。总线提供了一套通用的互联系统由一组导线或电路组成用于在计算机内部部件之间协调并传输信息。计算机总线包含两个通道一个供 CPU 用于定位数据称为地址总线另一个用于将数据传送到该地址称为数据总线。总线有两个特征一次能处理的信息量称为总线宽度以及传输这些数据的速度。A serial connection is a wire or set of wires used to transfer information from the CPU to an external device such as a mouse, keyboard, modem, scanner, and some types of printers. This type of connection transfers only one piece of data at a time, and is therefore slow. The advantage of using a serial connection is that it provides effective connections over long distances.串行连接是一根或一组导线用于在中央处理器与外部设备之间传输信息例如鼠标、键盘、调制解调器、扫描仪和部分打印机。这种连接方式一次只能传输一位数据因此速度较慢。串行连接的优点是可以在长距离下实现稳定有效的连接。