摘要:
Q1(Problem source : poj 2624): Description Given are the (x,y) coordinates of the endpoints of two adjacent sides of a parallelogram. Find the (x,y) c 阅读全文
摘要:
关于欧拉函数: Q1(Problem source : poj 2478): Description The Farey Sequence Fn for any integer n with n >= 2 is the set of irreducible rational numbers a/b 阅读全文