洛谷P3165 [CQOI2014]排序机械臂 Splay维护区间最小值

可以将高度定义为小数，这样就完美的解决了优先级的问题。
Code：

#include<cstdio>
#include<algorithm>
#include<cstring>
using namespace std;
const int maxn=100000+2;
int cnt[10000000+33];
double B[maxn],A[maxn];
struct Node
{
    int s,tag;
    double v,minv;
    Node *ch[2];
    int ls(){
        if(ch[0]==NULL)return 0;
        return ch[0]->s;
    }
    Node(double u)
    {
        v=u,s=1,minv=u,tag=0;
        ch[0]=ch[1]=NULL;
    }
    int cmp(double x){
        if(ch[0]!=NULL)
        {if(ch[0]->minv==x)return 0;}
        if(ch[1]!=NULL)
        {if(ch[1]->minv==x)return 1;}
        return -1;
    }
    int cmp2(int k){
        int lsize=ch[0]==NULL?0:ch[0]->s;
        if(k<=lsize)return 0;
        if(k==lsize+1)return -1;
        return 1;
    }
    void down(){
        if(tag==1){
            tag=0;
            swap(ch[0],ch[1]);
            if(ch[0]!=NULL)ch[0]->tag=!ch[0]->tag;
            if(ch[1]!=NULL)ch[1]->tag=!ch[1]->tag;
        }
    }
    void maintain(){
        s=1,minv=v;
        if(ch[0]!=NULL){
            s+=ch[0]->s;minv=min(minv,ch[0]->minv);
        }
        if(ch[1]!=NULL){
            s+=ch[1]->s;minv=min(minv,ch[1]->minv);
        }
    }
};
void rotate(Node* &o,int d){
    Node *k=o->ch[d^1];o->ch[d^1]=k->ch[d];k->ch[d]=o;
    o->maintain();k->maintain();o=k;
}
void splay(Node* &o,double x){
    o->down();
    int d=o->cmp(x);
    if(d!=-1){
        Node *p=o->ch[d];
        p->down();
        int d2=p->cmp(x);
        if(d2!=-1){
            splay(p->ch[d2],x);
            if(d==d2)
                rotate(o,d^1);
            else 
            {   rotate(p,d2^1);o->ch[d]=p;}
        }
        rotate(o,d^1);
    }
}
void splay2(Node* &o,int k){
    o->down();
    int d=o->cmp2(k);
    if(d==1)k-=o->ls()+1;
    if(d!=-1)
    {
        Node *p=o->ch[d];
        p->down();
        int d2=p->cmp2(k);
        if(d2==1)k-=p->ls()+1;
        if(d2!=-1){
            splay2(p->ch[d2],k);
            if(d==d2)
                rotate(o,d^1);
            else
                rotate(o->ch[d],d2^1);
        }
        rotate(o,d^1);
    }
}
void build(double arr[],int l,int r,Node* &o){
    if(l>r)return;
    int mid=(l+r)/2;
    o=new Node(arr[mid]);
    build(arr,l,mid-1,o->ch[0]);
    build(arr,mid+1,r,o->ch[1]);
    o->maintain();
}
void remove(Node* &o){
    if(o->ch[0]==NULL)o=o->ch[1];
    else if(o->ch[1]==NULL)o=o->ch[0];
    else
    {
        Node *right=o->ch[1];
        splay2(o->ch[0],o->ch[0]->s);
        Node *left=o->ch[0];
        left->ch[1]=right;
        left->maintain();
        o=left;
    }
}
Node *head;
int main()
{
        int N;
        scanf("%d",&N);
        for(int i=1;i<=N;++i){
            int a;
            scanf("%d",&a);
            ++cnt[a];
            B[i]=a+(0.000001)*(cnt[a]);
            A[i]=B[i];
        }
        sort(B+1,B+1+N);
        build(A,1,N,head);
        for(int i=1;i<=N-1;++i)
        {
            splay(head,B[i]);
            if(head->ch[0]!=NULL)head->ch[0]->tag=!head->ch[0]->tag;
            printf("%d ",head->ls()+i);
            remove(head);
        }
        printf("%d
",N);
        return 0;
}