2015年7月22日
HDU5288 OO’s Sequence
摘要： Problem Description OO has got a array A of size n ,defined a function f(l,r) represent the number of i (l<=i<=r) , that there's no j(l<=j<=r,j<>i) sa 阅读全文
posted @ 2015-07-22 16:49 unicoe 阅读(298) 评论(0) 推荐(0) 编辑