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    第六章第三十题(游戏:双骰子赌博)(Game: craps) - 编程练习题答案

    **6.30(游戏:双骰子赌博)执双骰子游戏是赌场中非常流行的骰子游戏。编写程序,玩这个游戏的一个变种,如下所描述: 执两个骰子。每个骰子有六个面,分别表示值1,2,…,6。检查这两个骰子的和。如果和为2、3或12(称为掷骰子(crap)),你就输了;如果和是7或者11(称作自然(natural)),你就赢了;但如果和是其他数字(例如:4、5、6、8、9或者10),就确定了一个点。继续掷骰子,直到掷出一个7或者掷出和刚才相同的点数。如果掷出的是7,你就输了。如果掷出的点数和你前一次掷出的点数相同,你就赢了。程序扮演一个独立的玩家。

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    再谈沙箱:前端所涉及的沙箱细讲

    沙箱或称沙盒,即sandbox,顾名思义,就是让程序跑在一个隔离的环境下,不对外界的其他程序造成影响,外界无法修改该环境内任何信息,沙箱内的东西单独属于一个世界,通过创建类似沙盒的独立作业环境,在其内部运行的程序并不能对硬盘产生永久性的影响。举个简单的栗子,其实我们的浏览器,Chrome 中的每一个标签页都是一个沙箱(sandbox)。渲染进程被沙箱(Sandbox)隔离,网页 web 代码内容必须通过 IPC 通道才能与浏览器内核进程通信,通信过程会进行安全的检查。沙箱设计的目的是为了让不可信的代码运行在一定的环境中,从而限制这些代码访问隔离区之外的资源。

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    HDOJ(HDU) 2060 Snooker(英语很重要。。。)

    Problem Description background: Philip likes to play the QQ game of Snooker when he wants a relax, though he was just a little vegetable-bird. Maybe you hadn’t played that game yet, no matter, I’ll introduce the rule for you first. There are 21 object balls on board, including 15 red balls and 6 color balls: yellow, green, brown, blue, pink, black. The player should use a white main ball to make the object balls roll into the hole, the sum of the ball’s fixed value he made in the hole is the player’s score. The player should firstly made a red ball into the hole, after that he gains red-ball’s value(1 points), then he gets the chance to make a color ball, then alternately. The color ball should be took out until all the red-ball are in the hole. In other word, if there are only color balls left on board, the player should hit the object balls in this order: yellow(2 point), green(3 point), brown(4 point), blue(5 point), pink(6 point), black(7 point), after the ball being hit into the hole, they are not get out of the hole, after no ball left on board, the game ends, the player who has the higher score wins the game. PS: red object balls never get out of the hole. I just illustrate the rules that maybe used, if you want to contact more details, visit http://sports.tom.com/snooker/ after the contest.

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