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dataStructure@ Find if there is a path between two vertices in a directed graph
Given a Directed Graph and two vertices in it, check whether there is a path from the first given vertex to second.For example, in the following graph...
分类:其他好文   时间:2015-10-23 20:09:08    阅读次数:213
变量运算、带参函数、
my second javascript file hello,world! 请输入要格式化的数字: ...
分类:其他好文   时间:2015-10-21 01:42:47    阅读次数:212
aoapc第六章 R题 Sculpture
aoapc第六章 R题 Sculpturehttp://7xjob4.com1.z0.glb.clouddn.com/5e3271c0195996a70363138f9cb82dd5Imagine a box, made of copper plate. Imagine a second one, ...
分类:其他好文   时间:2015-10-20 11:59:37    阅读次数:257
zoj 3903 Ant(推公式,逆元)
AntTime Limit:1 Second Memory Limit:32768 KBThere is an ant named Alice. Alice likes going hiking very much. Today, she wants to climb a cuboid. The l...
分类:其他好文   时间:2015-10-18 23:08:13    阅读次数:248
MySQL中的DATE_ADD应用场景
MySQL中的DATE_ADD应用场景/*当前时间加1毫秒*/SELECT DATE_ADD(NOW(),INTERVAL 1 MICROSECOND);/*当前时间减1毫秒*/SELECT DATE_ADD(NOW(),INTERVAL -1 MICROSECOND);/*当前时间加1秒*/SELECT DATE_ADD(NOW(),INTERVAL 1 SECOND);/*当前时间减1秒*/S...
分类:数据库   时间:2015-10-18 12:55:22    阅读次数:286
当多个类之间有继承关系时,创建子类对象会导致父类初始化块的执行。
源代码public class inherit {public static void main(String[] args){first a=new first();a.show();}}class second{String name;{name="zxr";}}class first exte...
分类:其他好文   时间:2015-10-17 23:38:48    阅读次数:182
ZOJ 3911 Prime Query ZOJ Monthly, October 2015 - I
Prime QueryTime Limit:1 Second Memory Limit:196608 KBYou are given a simple task. Given a sequenceA[i]withNnumbers. You have to perform Q operations o...
分类:其他好文   时间:2015-10-16 20:26:22    阅读次数:315
SQL Server中 DateDiff计算时间差
DATEDIFF 函数 [日期和时间] 功能 返回两个日期之间的间隔。 语法 DATEDIFF ( date-part, date-expression-1, date-expression-2 ) date-part : year | quarter | month | week | day | hour | minute | second ...
分类:数据库   时间:2015-10-16 15:31:52    阅读次数:264
创建sqlserver函数
CREATE FUNCTION getsort (@first varchar(100),@second varchar(100))RETURNS intASBEGINdeclare @rv int if(@first=@second) set @rv=1 elseset @rv=0 -- R...
分类:数据库   时间:2015-10-14 17:33:53    阅读次数:143
PHP数组foreach引用问题
string(1) "1" [1]=> &string(1) "2"}也就是说$value仍然是$arr[1]的引用(别名)然后我们再把第二个foreach拆开#begin second foreach$value = $arr[0];//note: 由于$value &$arr[1], ...
分类:编程语言   时间:2015-10-12 14:28:33    阅读次数:218
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