说明:冒泡.直接插入.选择.自带方法四中基本排序算法. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace OrderBy {     public partial…

Drainage Ditches Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 62016 Accepted: 23808 Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means that the clover is covered by wate…

彩色模型(又称彩色空间或彩色系统)是描述色彩的一种方法,本质上,彩色模型就是坐标系统和子空间的规范,系统中的每种颜色由单个点来表示.下面介绍两种最常用的彩色模型. 一.RGB彩色模型: RGB模型是最通用的面向设备的彩色模型,主要用于彩色显示器和彩色视频摄像机.RGB模型利用了三原色原理,即大多数颜色都可由红.绿.蓝三原色按不同比例混合构成.该模型确定的彩色子空间如下: 红.绿.蓝在3个角上,青.深红.黄在另外3个角上,黑色在原点处,白色位于离原点最远的角上:灰度等级沿着主对角线从黑色到白色分布…

const是C语言的关键字,经C++进行扩充,变得功能强大,用法复杂.const用于定义一个常变量(只读变量),当const与指针,引用,函数等结合起来使用时,情况会变得复杂的多.下面将从五个方面总结const的用法. 1.const位置 const位置较为灵活,一般来说,除了修饰一个类的成员函数外,const不会出现先一条语句的最后.示例如下: #include <iostream> using namespace std; int main(int argc,char* argv[]) {…

Find The Multiple Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 21851 Accepted: 8984 Special Judge Description Given a positive integer n, write a program to find out a nonzero multiple m of n whose decimal representation contains only t…

DZY Loves Chessboard time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY loves chessboard, and he enjoys playing with it. He has a chessboard of n rows and m columns. Some cells of the ches…

Ultra-QuickSort Time Limit: 7000MS   Memory Limit: 65536K Total Submissions: 48111   Accepted: 17549 Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swappin…

#include <iostream> #include <algorithm> #include <cstdio> #include <cstring> #include <cmath> #include <map> #include <vector> using namespace std; long long num[1000005]; long long fz[1000005]; long long xds[100…

#include <cstdio> #include <iostream> #include <cstring> #include<queue> #include<cmath> using namespace std; const int INF = 0x3fffffff; int g[1005][1005]; int pre[1005]; int m; int bfs(int s,int t) { queue<int>q; q.pu…

说明: (1)日期以年月形式显示:convert(varchar(7),字段名,120) , (2)加一列 (3)自编号: row_number() over(order by 字段名 desc) as RowID row_number() over(partition by 字段1 order by 字段2) as RowID (4)自编号的限制(不可直接在WHERE条件中加) 举例说明: 想要达到的效果:按月统计各工种的前5名(以件数为依据) 初始SQL语句: select sum(Sum_…