摘要: ```cpp include include include using namespace std; int N, M, a[100009], l, r, st[100009][20]; inline int read() { int s=0, w=1; char ch=getchar(); wh 阅读全文
posted @ 2019-03-20 15:07 LFYZOI题解 阅读(177) 评论(0) 推荐(0) 编辑