摘要: http://www.lydsy.com/JudgeOnline/problem.php?id=3670题意:太水了= =#include using namespace std;const int N=1000005, mo=1000000007;int n, p[N], pos[N], num[... 阅读全文
posted @ 2015-04-01 22:24 iwtwiioi 阅读(285) 评论(4) 推荐(0) 编辑