B - Radar Installation poj 1328【贪心】
摘要：
Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is a point locating in the sea 阅读全文
posted @ 2017-09-04 22:29 大学僧 阅读(108) 评论(0) 推荐(0) 编辑