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1027. Colors in Mars (20)
主题如以下:People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6-digit number...
分类:其他好文   时间:2015-09-11 22:13:24    阅读次数:238
地理坐标计算
/*根据半径(1000米)选择记录 */ SELECT * FROM pointlocation where earth_box(ll_to_earth(40.057031,116.307852),4000) @> ll_to_earth(pointlocation.lat, pointlocati...
分类:其他好文   时间:2015-09-09 17:15:50    阅读次数:165
poj 3669 Meteor Shower(bfs)
DescriptionBessie hears that an extraordinary meteor shower is coming; reports say that these meteors will crash into earth and destroy anything they ...
分类:其他好文   时间:2015-09-04 23:50:57    阅读次数:186
Google Earth 图片叠加Geo-referencing算法
以Google Earth的图片叠加层为例介绍Geo-referencing算法
分类:编程语言   时间:2015-09-03 06:58:08    阅读次数:378
Google地图数据算法
Google Maps与Google Earth中的每个级别的每一副图片都有一个URL,例如下面这幅我们学校的图的地址是http://kh.google.com/kh?v=3&t=trstrqqrsstttqtss(这个就是图的URL)URL中的变量v=3代表,卫星图的投影算法采用Mercator ...
分类:编程语言   时间:2015-08-31 21:08:34    阅读次数:158
USACO 1.1 Your Ride Is Here
Your Ride Is HereIt is a well-known fact that behind every good comet is a UFO. These UFOs often come to collect loyal supporters from here on Earth. ...
分类:其他好文   时间:2015-08-28 15:26:37    阅读次数:212
Blue Jeans
Description The Genographic Project is a research partnership between IBM and The National Geographic Society that is analyzing DNA from hundreds of thousands of contributors to map how the Earth was...
分类:其他好文   时间:2015-08-25 12:06:01    阅读次数:163
(转)Ajax的原理和应用
1、ajax技术的背景不可否认,ajax技术的流行得益于google的大力推广,正是由于google earth、google suggest以及gmail等对ajax技术的广泛应用,催生了ajax的流行。而这也让微软感到无比的尴尬,因为早在97年,微软便已经发明了ajax中的关键技术,并且在99年...
分类:Web程序   时间:2015-08-20 10:25:21    阅读次数:187
atcoder 它February 29th
Time limit: 2sec /Stack limit: 256MB /Memory limit: 256MBProblemCharlie was born January 1st of the yearA, on the Earth. He will leave the Earth on De...
分类:其他好文   时间:2015-08-18 15:57:18    阅读次数:147
NSBundle的使用,注意mainBundle和Custom Bundle的区别
1、[NSBundle mainBundle],文件夹其实是Group,如左侧的树形文件管理器Build之后,文件直接就复制到了根目录下,于是读取的方法,应该是这样:NSString*earth = [[NSBundlemainBundle] pathForResource:@"Brad Cox"o...
分类:其他好文   时间:2015-08-17 11:33:58    阅读次数:150
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