摘要: ll p,a[MAXN],atag[MAXN],mtag[MAXN],ctag[MAXN],tree[MAXN]; void Pushup(int rt){tree[rt]=(tree[rt<<1]+tree[rt<<1|1])%p;} void Pushdown(int rt,int ln,int 阅读全文
posted @ 2020-05-17 15:38 Mmasker 阅读(181) 评论(0) 推荐(0) 编辑