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摘要: (水) struct point{int l,r,val1,val2/*要维护的信息*/,tag1,tag2/*标记*/;}tree[maxn<<2]; point pushup(point x,point y,int tg1,int tg2/*标记传进来*/) { point ans; if(x. 阅读全文
posted @ 2022-07-20 10:28 pjykk 阅读(47) 评论(0) 推荐(0) 编辑