思路：

　　动态开点权值线段树+启发式合并；

 

来，上代码：

#include 
     
      #include 
      
       #include 
       
        #include 
        
         #include 
         
          using namespace std;#define maxn 400005#define maxm 7000000int ch[maxm][2],X,dis[maxm],tot,n,ai[maxn];int size,f[maxn],cnt,op[maxn],x[maxn],y[maxn],root[maxn];double lo[maxm],logg[maxn],XX;inline int lower_bound(int pos){    int l=1,r=size,mid,res;    while(l<=r)    {        mid=l+r>>1;        if(pos>=ai[mid]) l=(res=mid)+1;        else r=mid-1;    }    return res;}inline void in(int &now){    char Cget=getchar();now=0;    while(Cget>'9'||Cget<'0') Cget=getchar();    while(Cget>='0'&&Cget<='9')    {        now=now*10+Cget-'0';        Cget=getchar();    }}void tree_query(int now,int l,int r,int li,int ri){    if(!dis[now]) return ;    if(l==r)    {        X+=dis[now],dis[now]=0,lo[now]=0;        return ;    }    int mid=l+r>>1;    if(li<=mid) tree_query(ch[now][0],l,mid,li,ri);    if(ri>mid) tree_query(ch[now][1],mid+1,r,li,ri);    dis[now]=dis[ch[now][0]]+dis[ch[now][1]],lo[now]=lo[ch[now][0]]+lo[ch[now][1]];}void tree_add(int &now,int l,int r,int to){    if(!now) now=++tot;    dis[now]+=X,lo[now]+=XX;    if(l==r) return ;    int mid=l+r>>1;    if(to<=mid) tree_add(ch[now][0],l,mid,to);    else tree_add(ch[now][1],mid+1,r,to);}int merge(int now,int pre,int l,int r){    if(!now) return pre;    if(!pre) return now;    if(l==r)    {        lo[now]+=lo[pre];        dis[now]+=dis[pre];        return now;    }    int mid=l+r>>1;    ch[now][0]=merge(ch[now][0],ch[pre][0],l,mid);    ch[now][1]=merge(ch[now][1],ch[pre][1],mid+1,r);    lo[now]=lo[ch[now][0]]+lo[ch[now][1]];    dis[now]=dis[ch[now][0]]+dis[ch[now][1]];    return now;}int irank(int now,int k){    int l=1,r=size,mid;    while(l
          
           >1; if(dis[ch[now][0]]>=k) r=mid,now=ch[now][0]; else k-=dis[ch[now][0]],l=mid+1,now=ch[now][1]; } return ai[l];}inline int find(int j){ return f[j]==j?j:f[j]=find(f[j]);}int main(){ in(n); for(int i=1;i<=n;i++) { in(op[i]),in(x[i]); if(op[i]>1&&op[i]<7) in(y[i]); if(op[i]==1) ai[++size]=x[i]; if(op[i]==3||op[i]==4) ai[++size]=y[i]; } sort(ai+1,ai+size+1),size=unique(ai+1,ai+size+1)-ai-1; for(int i=1;i<=size;i++) logg[i]=log(ai[i]); for(int i=1;i<=n;i++) { if(op[i]==1) x[i]=lower_bound(x[i]),X=1,XX=logg[x[i]],tree_add(root[++cnt],1,size,x[i]),f[cnt]=cnt; else if(op[i]==2) { x[i]=find(x[i]),y[i]=find(y[i]); if(x[i]==y[i]) continue; root[y[i]]=merge(root[x[i]],root[y[i]],1,size),f[x[i]]=y[i]; } else if(op[i]==3) { y[i]=lower_bound(y[i]),x[i]=find(x[i]),X=0; if(y[i]>1) tree_query(root[x[i]],1,size,1,y[i]-1),XX=logg[y[i]]*X; if(X) tree_add(root[x[i]],1,size,y[i]); } else if(op[i]==4) { y[i]=lower_bound(y[i]),x[i]=find(x[i]),X=0; if(y[i]
           
            lo[root[find(y[i])]]?"1":"0"); else if(op[i]==7) printf("%d\n",dis[root[find(x[i])]]); else printf("Orz\n"); } return 0;}