摘要: struct seg { int l, r; int flag; int id; }s[N]; int split(int x, int y) { int cnt = 0; int flag=0; int fx = top[x], fy = top[y]; while (fx != fy) { if 阅读全文
posted @ 2021-09-13 20:26 _comet 阅读(25) 评论(0) 推荐(1) 编辑