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HDU 3832 Earth Hour(最短路)
题目地址:HDU 3832 这个题的这个方法我无法给出证明。我当时这个灵感出来的时候是想的是要想覆盖的点最少,那就要尽量重复利用这些点,然后要有两个之间是通过另一个点间接连接的,这样会充分利用那些点。然后就这样写了一次,一直WA。。然后中午睡觉的时候突然想到了有一种情况这样做是不对的。那就是有个点作为中间点,与三个点相连的情况,这种情况虽然也符合,但是会有重复边。。。但是恰恰相反。。重复边应该越...
分类:其他好文   时间:2014-08-01 16:04:41    阅读次数:235
The Plaza Beauty also are ghd cheap australia
The Plaza Beauty also are ghd cheap australia raffling off free refurbishments every hour. Some moat people that have long hair be needing being extra...
分类:其他好文   时间:2014-07-31 12:58:56    阅读次数:204
Change Number to English By Reading rule of money
In the partime,  a simle program attracted my attention whose content is to change number to english by reading rule of money.It took about one hour to deal with this question. Now the source was shar...
分类:其他好文   时间:2014-07-24 23:15:23    阅读次数:280
开发报表时需要一个0到23的下拉列表
1.New一个dataset名为Hours2.SELECT 0 AS HOUR UNIONSELECT 1 AS HOUR UNIONSELECT 2 AS HOUR UNIONSELECT 3 AS HOUR UNIONSELECT 4 AS HOUR UNIONSELECT 5 AS HOUR ...
分类:其他好文   时间:2014-07-22 00:17:35    阅读次数:188
安卓学习第9课——计时器chronometer
今天学习了钟表及计时器。。我觉得AnalogClock和DigitalClock直接使用就可以。唯一需要知道的就是AnalogClock是可以修改表盘和分针时针的。方法是android:dail及android:hand_minute和hand_hour.下面介绍的是计时器的用法。首先xml中只要放...
分类:移动开发   时间:2014-07-19 21:17:59    阅读次数:329
shell scripts小记2
使用date命令转换基础时间秒为年月日:命令为:date -d @1281161747注意一定不要忘记符号“@” #date 获取当前时间 #date -d "-1 week" +%Y%m%d 获取上周日期(day,month,year,hour) #date --date="-24 hour".....
分类:其他好文   时间:2014-07-18 00:26:36    阅读次数:240
详细的SQL中datediff用法
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 |...
分类:数据库   时间:2014-07-13 21:54:54    阅读次数:216
uva 467 - Synching Signals(暴力+数学)
题目连接:uva 467 - Synching Signals 题目大意:有n个红绿灯,给出红灯的时间t,那么该灯从0时刻开始就以2*t为周期绿黄红三灯交替,时间分别为t-5,5,t。问所这n个等从第一变为有一个灯不为绿灯开始,要多久才能变成所有的灯刚好都为绿灯。时间超过1小时输出unable to synch after one hour. 解题思路:一小时才3600秒,枚举秒数判断...
分类:其他好文   时间:2014-07-06 08:40:04    阅读次数:180
Where should you investmy 10,000 hours of practice?
The 10,000-Hour Rule says that you need approximately 10,000 hours of practice to become a world-class expert in a field. There is no other way: if yo...
分类:其他好文   时间:2014-07-03 12:25:37    阅读次数:214
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