2018年2月25日
poj2002 Squares(hash+折半枚举)
摘要： Description A square is a 4-sided polygon whose sides have equal length and adjacent sides form 90-degree angles. It is also a polygon such that rotat 阅读全文
posted @ 2018-02-25 21:50 Styx-ferryman 阅读(208) 评论(0) 推荐(0)
poj1840 Eqs(hash+折半枚举)
摘要： Description Consider equations having the following form: a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0 The coefficients are given integers from the interval [- 阅读全文
posted @ 2018-02-25 19:06 Styx-ferryman 阅读(439) 评论(0) 推荐(0)
poj2151 Check the difficulty of problems(概率dp)
摘要： Description Organizing a programming contest is not an easy job. To avoid making the problems too difficult, the organizer usually expect the contest 阅读全文
posted @ 2018-02-25 08:03 Styx-ferryman 阅读(273) 评论(0) 推荐(0)