2017年6月4日
（高斯消元）HDU2827 The Evaluation of Determinant
摘要： The determinant is quite important in Linear Algebras, but I think that almost everyone who has ever learnt Linear Algebras is tired of the complicate 阅读全文
posted @ 2017-06-04 16:12 perplex 阅读(271) 评论(0) 推荐(0)
（三分）HDU5531 Rebuild
摘要： Archaeologists find ruins of Ancient ACM Civilization, and they want to rebuild it. The ruins form a closed path on an x-y plane, which has nn endpoin 阅读全文
posted @ 2017-06-04 16:06 perplex 阅读(330) 评论(0) 推荐(0)