【容斥定理】--入门
摘要:
hdu 4135(容斥原理) 题意:就是让你求(a,b)区间于n互质的数的个数. Input The first line on input contains T (0 < T <= 100) the number of test cases, each of the next T lines co 阅读全文
posted @ 2016-08-03 15:19 nicknick 阅读(904) 评论(0) 推荐(0) 编辑