Boss.Pi

摘要： 题目描述 Although Farmer John has no problems walking around the fair to collect prizes or see the shows, his cows are not in such good shape; a full day 阅读全文

摘要： Description 某人在山上种了N棵小树苗。冬天来了，温度急速下降，小树苗脆弱得不堪一击，于是树主人想用一些塑料薄 膜把这些小树遮盖起来，经过一番长久的思考，他决定用3个L L的正方形塑料薄膜将小树遮起来。我们不妨将山建 立一个平面直角坐标系，设第i棵小树的坐标为（Xi,Yi），3个L L的正 阅读全文