棋盘问题 Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 28474 Accepted: 14084 Description 在一个给定形状的棋盘(形状可能是不规则的)上面摆放棋子,棋子没有区别.要求摆放时任意的两个棋子不能放在棋盘中的同一行或者同一列,请编程求解对于给定形状和大小的棋盘,摆放k个棋子的所有可行的摆放方案C. Input 输入含有多组测试数据. 每组数据的第一行是两个正整数,n k,用一个空格隔开,表示了将在一…

A Plug for UNIX Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 14786 Accepted: 4994 Description You are in charge of setting up the press room for the inaugural meeting of the United Nations Internet eXecutive (UNIX), which has an interna…

Snowflake Snow Snowflakes Time Limit: 4000MS Memory Limit: 65536K Total Submissions: 34762 Accepted: 9126 Description You may have heard that no two snowflakes are alike. Your task is to write a program to determine whether this is really true. Your…

这个方法是通用的,不仅仅适用于EditText,也适用于TextView.AutoCompleteTextView等控件. Google官方API并没有给出一个直接的方法用来设置右边图片的点击事件,所以这里我们需要通过点击位置来判断点击事件,效果如图: 布局文件: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.a…

截取全屏代码: try { this.Hide(); Rectangle bounds = Screen.GetBounds(Screen.GetBounds(Point.Empty)); Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height); Graphics g = Graphics.FromImage(bitmap); g.CopyFromScreen(Point.Empty, Point.Empty, bounds.Size);…

1.版本说明 (1)最新版本:3.3.0 (2)最新release版本:3.2.0 (3)重要历史版本:1.14.4 3.1.0及之前的版本:http://sourceforge.net/projects/archive-crawler/files/ 3.2.0及之后的版本:http://archive.org/ 由于国情需要,后者无法访问,因此本blog研究的是1.14.4版本. 2.官方材料 source:http://sourceforge.net/projects/archive-cra…

PHP站内搜索:多关键字.加亮显示 1.SQL语句中的模糊查找 $sql = "SELECT * FROM `message` WHERE `content`like '%$k[0]%' and `content`like '%$k[0]%'"; 2.多个关键字搜索的原理和技巧 3.替换关键字高亮显示 $r[content] = preg_replace("/($_GET[key])/i", "<font color = red><b&g…

Power Network Time Limit: 2000MS Memory Limit: 32768K Total Submissions: 24867 Accepted: 12958 Description A power network consists of nodes (power stations, consumers and dispatchers) connected by power transport lines. A node u may be supplied with…

Robot Motion Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 11262 Accepted: 5482 Description A robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down in a g…

1.Shell$ExitCodeException 现象:运行hadoop job时出现如下异常: 14/07/09 14:42:50 INFO mapreduce.Job: Task Id : attempt_1404886826875_0007_m_000000_1, Status : FAILED Exception from container-launch: org.apache.hadoop.util.Shell$ExitCodeException:  org.apache.hado…