The main purpose of this project is to add a new scheduling algorithm to GeekOS and to implement a simple synchronization primitive (semaphore). As you might have already noticed, GeekOS uses a simple priority based preemptive Round Robin algorithm. In this project, you will change this to a multilevel feedback scheduling. In addition, you will provide user programs with semaphores, a means to check the system s current time and a mechanism for passing command-line arguments
标签： scheduling algorithm implement to
上传时间： 2013-11-27
上传用户：Late_Li
编写简单的加密程序它把一个文件的所有字母按下列规律进行 换，非字母的字符保持不变。文本可以自行创建，文件名可以自定 转换规律：‘A’→‘Z’，‘B’→‘Y’，• •
上传时间： 2016-03-23
上传用户：ouyangtongze
Scotia Airlines is a new budget airline operating between Glasgow Airport and the Western Isles. It operates two 24-seater light passenger aircraft and requires a flight booking system. Because Scotia offers low cost air travel, there is a need to treat each flight as single cost centre and to be able to ascertain, at any moment, the amount of the cash taken for that flight. Reservations and bookings cannot be made until the flight details have been finalised (flight number, departure and arrival airports). A seat on a flight is considered booked when payment as been received for it. When a reservation is confirmed (changed to booked), the passenger name is checked against the original reservation. A flight can be in any of the following states: Available for bookings Checking in Boarding Closed
标签： operating Airlines Glasgow Airport
上传时间： 2016-03-25
上传用户：hgy9473
Just what is a regular expression, anyway? Take the tutorial to get the long answer. The short answer is that a regular expression is a compact way of describing complex patterns in texts. You can use them to search for patterns and, once found, to modify the patterns in complex ways. You can also use them to launch programmatic actions that depend on patterns. A tongue-in-cheek comment by programmers is worth thinking about: "Sometimes you have a programming problem and it seems like the best solution is to use regular expressions now you have two problems." Regular expressions are amazingly powerful and deeply expressive. That is the very reason writing them is just as error-prone as writing any other complex programming code. It is always better to solve a genuinely simple problem in a simple way when you go beyond simple, think about regular expressions. Tutorial: Using regular expressions
标签： expression the tutorial regular
上传时间： 2013-12-19
上传用户：sardinescn
As a consequence, more exact models of devices can be retained for analysis rather than the approximate models commonly introduced for the sake of computational simplicity. A computer icon appears in the margin with each introduction of MATLAB analysis.
标签： consequence analysis retained approxi
上传时间： 2016-04-07
上传用户：yan2267246
As a consequence, more exact models of devices can be retained for analysis rather than the approximate models commonly introduced for the sake of computational simplicity. A computer icon appears in the margin with each introduction of MATLAB analysis.
标签： consequence analysis retained approxi
上传时间： 2016-04-07
上传用户：shanml
As a consequence, more exact models of devices can be retained for analysis rather than the approximate models commonly introduced for the sake of computational simplicity. A computer icon appears in the margin with each introduction of MATLAB analysis.
标签： consequence analysis retained approxi
上传时间： 2016-04-07
上传用户：changeboy
As a consequence, more exact models of devices can be retained for analysis rather than the approximate models commonly introduced for the sake of computational simplicity. A computer icon appears in the margin with each introduction of MATLAB analysis.
标签： consequence analysis retained approxi
上传时间： 2014-01-15
上传用户：R50974
As a consequence, more exact models of devices can be retained for analysis rather than the approximate models commonly introduced for the sake of computational simplicity. A computer icon appears in the margin with each introduction of MATLAB analysis.
标签： consequence analysis retained approxi
上传时间： 2013-12-23
上传用户：czl10052678
编程题（15_01.c） 结构 struct student { long num char name[20] int score struct student *next } 链表练习： (1).编写函数struct student * creat(int n),创建一个按学号升序排列的新链表,每个链表中的结点中 的学号、成绩由键盘输入，一共n个节点。 (2).编写函数void print(struct student *head),输出链表，格式每行一个结点，包括学号，姓名,分数。 (3).编写函数struct student * merge(struct student *a,struct student *b), 将已知的a,b两个链表 按学号升序合并，若学号相同则保留成绩高的结点。 (4).编写函数struct student * del(struct student *a,struct student *b),从a链表中删除b链表中有 相同学号的那些结点。 (5).编写main函数，调用函数creat建立2个链表a,b,用print输出俩个链表；调用函数merge升序合并2个 链表，并输出结果；调用函数del实现a-b,并输出结果。 a: 20304,xxxx,75, 20311,yyyy,89 20303,zzzz,62 20307,aaaa,87 20320,bbbb,79 b： 20302,dddd,65 20301,cccc,99 20311,yyyy,87 20323,kkkk,88 20307,aaaa,92 20322,pppp,83
上传时间： 2016-04-13
上传用户：zxc23456789
