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TLE的童鞋可以看一下

Posted by NEU_20113292 at 2013-02-23 16:54:15 on Problem 3277 
我是拿1151的代码过来的果断TLE了一直不明白怎么回事（我用的二分查找）
1151的代码思路是离散y坐标点然后从左到右扫描竖线段插入或者删除（线段树操作的）
自己写的数据大概跑1分钟
看了http://blog.sina.com.cn/s/blog_93ced90c01017eav.html
深受启发
简少了插入删除竖线段的时间代价是增加了查询未覆盖的时间
跟我一样TLE的可以看一看
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