摘要: 可持久化线段树 例题 struct Persistent_Segment_Tree { struct Point { int l, r; LL sum; }p[N * 25]; int rt[N], cnt = 0; void Newpoint(int &rt, int last, int l, i 阅读全文
posted @ 2024-02-04 16:14 With_penguin 阅读(10) 评论(1) 推荐(0) 编辑