2012年9月27日
USACO Section 4.1 Fence Rails（DFSID）
摘要： Fence RailsBurch, Kolstad, and SchrijversFarmer John is trying to erect a fence around part of his field. He has decided on the shape of the fence and has even already installed the posts, but he's having a problem with the rails. The local lumber store has dropped off boards of varying lengths; 阅读全文
posted @ 2012-09-27 20:58 mtry 阅读(567) 评论(0) 推荐(0)