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  • You can assume the playing field is high enough, so that tetrominoes will not overlap each other even when a tetromino is created at the top of the playing field. Input There are multiple test ...
  • We have two rows. There are a dots on the top row and b dots on the bottom ... We draw line segments connecting every dot on the top row with every dot on the bottom row. The dots are arranged in suc...

    We have two rows. There are a dots on the top row and b dots on the bottom row. We draw line segments connecting every dot on the top row with every dot on the bottom row. The dots are arranged in such a way that the number of internal intersections among the line segments is maximized. To achieve this goal we must not allow more than two line segments to intersect in a point. The intersection points on the top row and the bottom are not included in our count; we can allow more than two line segments to intersect on those two rows. Given the value of a and b, your task is to compute P(a, b), the number of intersections in between the two rows. For example, in the following figure a = 2 and b = 3. This figure illustrates that P(2, 3) = 3.
    在这里插入图片描述
    Input
    Each line in the input will contain two positive integers a (0 < a ≤ 20000) and b (0 < b ≤ 20000). Input is terminated by a line where both a and b are zero. This case should not be processed. You will need to process at most 1200 sets of inputs.
    Output
    For each line of input, print in a line the serial of output followed by the value of P(a, b). Look at the output for sample input for details. You can assume that the output for the test cases will fit in 64-bit signed integers.
    Sample Input
    2 2
    2 3
    3 3
    0 0
    Sample Output
    Case 1: 1
    Case 2: 3
    Case 3: 9

    问题链接UVA10790 How Many Points of Intersection?
    问题简述:(略)
    问题分析
        如图,找交点,不存在多于两条线相交于一点。
        每个交点都由两条线上的两个点得到,所以结果为C(a,2)*C(b,2)=ab(a-1)(b-1)/4。
    程序说明:(略)
    参考链接:(略)
    题记:(略)

    AC的C++语言程序如下:

    /* UVA10790 How Many Points of Intersection? */
    
    #include <bits/stdc++.h>
    
    using namespace std;
    
    int main()
    {
        int caseno = 0;
        long long a, b;
        while (scanf("%lld%lld", &a, &b) && (a || b))
            printf("Case %d: %lld\n", ++caseno, a * b * (a - 1) * (b - 1) / 4);
    
        return 0;
    }
    
    展开全文
  • <p>Warning: SimpleXMLElement::xpath() [simplexmlelement.xpath]: Invalid expression in /var/www/vhosts/numyspace.co.uk/web_users/home/~unn_w11034582/public_html/web/searchResults.php on line 19 ...
  • <p>I have this bit of code in my script, the <code>SESSION</code> was started at the top of the page - just for your info. <pre><code>$_SESSION['PlanType'] // set in form $_SESSION['ReceipientNum'] /...
  • approximated by the fewest number of bricks that could be removed to create a gap from the top to the bottom. Can you determine that number for various odd walls created by Tetrad? Input Input...
  • 我有一个创建了一个组合控件,然后想让这个组合控件在页面内随意拖动实现返回顶部的功能,然后FloatingView继承了这个组合控件后,使用报运行时异常,请问我该怎么修改?谢谢 下面是组合控件: ``` public ...
  • Each test case is specified in a single line made of integers (separated by spaces.) The first integer is the number of rows in the test case, and the remaining integers are the values of the unit ...
  • background: url(../images/bheadr.gif) top right no-repeat; } .block .block_head h1 { font-family: "Trebuchet MS", Arial, sans-serif; font-size: 25px; font-weight: bold; text-transform: ...
  • Hydrogen Hydrogen is an interactive coding environment that supports Python, R, JavaScript and other Jupyter kernels. Checkout our Documentation and Medium blog post to see what you ...⬆ back to top
  • 双击中心图画区域,在Size/Speed界面修改Left/Top使得图标位于画布中心区域 Width:75,Height:71.8 3. 修改坐标轴粗细和字体大小 左右上下左右的坐标轴都可修改,若要添加上边和右边的坐标轴,在Line and ...

    1.

    完图后,在空白处鼠标右键-Properties-Print界面修改WidthHeight

    组合112:10);组合210:8),单位:cm

     

    2.

    双击中心图画区域Size/Speed界面修改Left/Top使得图标位于画布中心区域

    Width:75Height:71.8

     

    3.

    修改坐标轴粗细和字体大小

    左右上下左右的坐标轴都可修改,若要添加上边和右边的坐标轴,在Line and Ticks模块

    修改Length3Thickness1

    所有的字体可在Tools-Options里修改,字体设置为12大小,点确定。也可在上面界面处调整

     

    4.

    线条和标号大小修改

    双击线条,对线条和标号大小进行反反复复修改

     

    5.

    导出图片

    tif格式

    image settings设置参数,DPI根据要求设置,一般300

    Export seetings选择page

     

    6.建议

    6.1 一张图一个opj,文件名:20201225-章2-图5-简短解释

    6.2 系列图合理利用 Tools-Theme Organizer,严格一图一opj

    6.3 耐心再耐心,图跟着论文排版走

     

    展开全文
  • CTFHUB-HTTP协议(四)------基础认证

    千次阅读 2020-07-22 13:06:06
    看题一看就知道估计得爆破,烦躁!!! ... 输入admin与admin 通过burp抓包发现是通过base64编码了 ...我一开始憨批了,没看到有个附件自己去搞了个字典没爆出来,记得下载附件 ...写了个python来组合 ... for line in f.rea

    看题一看就知道估计得爆破,烦躁!!!
    在这里插入图片描述
    打开页面后出现,点击click
    在这里插入图片描述
    输入admin与admin
    在这里插入图片描述
    通过burp抓包发现是通过base64编码了
    在这里插入图片描述
    我一开始憨批了,没看到有个附件自己去搞了个字典没爆出来,记得下载附件

    将请求发送给测试器
    在这里插入图片描述
    下一步
    在这里插入图片描述

    点击导入字典
    在这里插入图片描述
    但是发现前面没有admin:
    写了个python来组合

    import base64
    
    with open(10_million_password_list_top_100.txt, r+) as f
        for line in f.readlines()
            line = line.strip('n')
            line = 'admin' + line
            print(line)
            line1 = base64.b64encode(line.encode('utf-8'))
            with open(final.txt, a+) as res
                res.write(str(line1, 'utf-8') + 'n');
    
    

    在这里插入图片描述
    再次导入字典在这里插入图片描述
    点击Attack开始攻击,发现个长度不一样的
    在这里插入图片描述
    双击点开得到flag
    在这里插入图片描述

    展开全文
  • 打冰雹游戏源程序

    2013-06-16 00:07:04
    Line2到Line7是做指针用的,Line1是作为冰雹没有打中落下去让冰雹消失 8 medieplayer 播放器 当鼠标击打冰雹时,放出声音 各窗体的代码介绍 form1—开始界面 作用:“进入应用程序”。 所用控件:4个标签,1个时钟...
  • 原理:利用a标签和i标签各自一个背景组合成为按钮,达到自适应。 复制代码代码如下: <!DOCTYPE html> <html> <head> <meta charset=”UTF-8″> <style type=”text/css”> .btn a{text-...
  • viewport.top = 132; viewport.bottom = 0; viewport.left = -1; viewport.right = 12; return viewport; } //设置折线图,添加设置好的数据 public static LineChartData initLineCharData(List<Line> ...
  • 每个大方块由四个小正方形组成,一共有7种组合方式。这个类需要实现一个大方块实体所有的属性和动作。包括:方块的形状,位置,方块左移,右移,下移,旋转等。 类设计: class Block { public Square square...
  • line-space 属性支持 三角形等常用图形的支持 painter“插件” —— 支持使用者通过少量代码传入自行拓展 painter 能力 painter 的 “canvas2d 版本”与“base64 支持”正处于测试状态,可以在上方测试版本处...
  • <td colspan="8" style="line-height: 40px;"> style="position: absolute;float: left; margin-left: 75px;">组合表ID</label> style="float: left; margin-left: ...
  • c++语言代码

    2012-11-10 15:57:39
    k++)/*四种组合方式*/ { if(up[i][k]==0&&down;[i][k]==0) mouse_draw[i][k]=1; else if(up[i][k]==0&&down;[i][k]==1) mouse_draw[i][k]=2; else if(up[i][k]==1&&down;[i][k]==0) mouse_draw[i][k]=...
  • VB控件属性使用大全

    2011-12-15 12:02:34
    DrawMode设定窗体上绘图(graphics方法),Shape,Line等控件的输出外观,有16种可选: 1 黑色 2 非或笔,设置值15的反相 3 与非笔,背景色以及画笔反相二者共有颜色的组合 4 非复制笔,设置值13的反相 5 与笔非,画笔...
  • These three codes are listed from top to bottom in alphabetic order. Among all codes generated with this set of characters, these codes appear consecutively in this order. Write a program to assist ...
  • CISCO 技术大集合

    2013-05-22 01:07:13
    router(config-line)#; router(config-router)#;… 路由器处于局部设置状态,这时可以设置路由器某个局部的参数。 5. > 路由器处于RXBOOT状态,在开机后60秒内按ctrl-break可进入此状态,这时路由器不能完成正常...
  • 2009 达内Unix学习笔记

    2010-02-10 19:45:32
    ls -lt 是“-l”和“-t”的组合,按时间顺序显示列表。 ls -F 显示文件类型,目录“/ ”结尾;可执行文件“*”结尾;文本文件(none),没有结尾。 ls -R 递归显示目录结构。即该目录下的文件和各个副目录下的文件...
  • text-decoration:line-through; color: #f92672; } .options{ list-style:upper-latin; } .options *{ cursor:pointer; } .options *:hover{ font-weight:bold; } .options li{ margin-top:5px; ...
  • //SIF_ALL:SIF_RANGE、SIF_PAGE、SIF_POS和SIF_TRACKPOS的组合 GetScrollInfo(hwnd,SB_VERT,&si); iVertPos =si.nPos; //si.nPos:当前位置 switch(LOWORD(wParam)) { case SB_TOP: si.nPos=si....
  • //SIF_ALL:SIF_RANGE、SIF_PAGE、SIF_POS和SIF_TRACKPOS的组合 GetScrollInfo(hwnd,SB_VERT,&si); iVertPos =si.nPos; //si.nPos:当前位置 switch(LOWORD(wParam)) { case SB_TOP: si.nPos=si....
  • .mt10 {margin-top: 10px;} .control-group {overflow: hidden;} .control-group a {color: #666;text-decoration: none;} .control-group a:hover {text-decoration: underline;} .control-label {float:...
  • while ((line = reader.readLine()) != null) { pageBuffer.append(line); } System.out.println(pageBuffer.toString()); //return pageBuffer.toString(); } catch (Exception e) { e....
  • C++MFC教程

    热门讨论 2013-05-21 13:37:15
    4、训练自己在编写代码时不使用参考书而是使用Help Online。 5、记住一些常用的消息名称和参数的意义。 6、学会看别人的代码。 7、多看书,少买书,买书前一定要慎重。 8、闲下来的时候就看参考书。 9、多来我的主页...
  • WS_CHILDWINDOW | WS_VISIBLE | LBS_STANDARD, //LBS_STANDARD由LBS_NOTIFY、LBS_SORT、WS_VSCROLL、WS_BORDER组合 cxChar, //LBS_NOTIFY使父窗口收到消息 cyChar * 3, cxChar * 13 + ...

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