Xenia the beginner mathematician is a third year student at elementary school. She is now learning the addition operation.
The teacher has written down the sum of multiple numbers. Pupils should ca...
分类：
其他好文 时间：
2014-07-22 23:05:53
阅读次数：
382
1.利用返回值而不是副作用来写程序(副作用包含破坏性修改对象以及对变量赋值).2.需要返回多个值请使用multiple-value-bind和values的组合方式.3.函数式编程需要思考你要什么,而不是要怎么做.4.一个给定的调用可以安全的修改它唯一拥有的东西(函数拥有被调用函数返回的对象,但不拥...
分类：
其他好文 时间：
2014-05-05 23:30:48
阅读次数：
358
reference
from：http://www.cs.bgu.ac.il/~spl051/Personal_material/Practical_sessions/Ps_12/ps12.htmlJava
server class with multiple client connections:...
分类：
其他好文 时间：
2014-05-04 10:15:23
阅读次数：
355
SAP允许直接通过ABAP代码在屏幕上创建一个页签，相关语法如下。SELECTION-SCREEN
BEGIN OF TABBED BLOCK FOR n
LINES.每个页签都是由一个单独的子屏幕控制，N代表分页控件的高度，屏幕载入时必须先通过INITIALIZATION事件对其属性初始化。下例....
分类：
其他好文 时间：
2014-05-04 10:05:20
阅读次数：
435
Valera wanted to prepare a Codesecrof round. He's already got one problem and he wants to set a time limit (TL) on it.
Valera has written n correct solutions. For each correct solution, he knows it...
分类：
其他好文 时间：
2014-05-03 16:53:51
阅读次数：
364
题目描述：
Description
Furik loves math lessons very much, so he doesn't attend them, unlike Rubik. But now Furik wants to get a good mark for math. For that Ms. Ivanova, his math teacher, gave him...
分类：
其他好文 时间：
2014-05-03 16:45:31
阅读次数：
234
Chef wrote some text on a piece of paper and now he wants to know how many holes are in the text. What is a hole? If you think of the paper as the plane and a letter as a curve on the plane, then each...
分类：
其他好文 时间：
2014-05-03 15:49:18
阅读次数：
412
Iahub accidentally discovered a secret lab. He
found there n devices ordered in a line, numbered from 1 to n from left to
right. Each device i (1?≤?i?...
分类：
其他好文 时间：
2014-05-02 15:36:19
阅读次数：
314
ABAP中的颜色代码是由4位字都组成的cxyzc：color的简写，颜色代码均以C开头x：标准色代码，SAP中一共有7个标准色
y：反转颜色启用/关闭 1/0 z：增强颜色启用/关闭 1/0标准色代码一览表
X颜色主要用处1灰蓝色抬头、标题栏2浅灰色列表内容3黄色汇总4蓝色关键字5绿色正确6红色错....
分类：
其他好文 时间：
2014-05-01 21:22:13
阅读次数：
400
Problem DescriptionIgnatius has just come back
school from the 30th ACM/ICPC. Now he has a lot of homework to do. Every teacher
gives him a deadline o...
分类：
其他好文 时间：
2014-05-01 20:49:40
阅读次数：
563
