// LUOGU_RID: 110890204
// LUOGU_RID: 110143181
// LUOGU_RID: 110111001
#pragma GCC optimize(1)
#pragma GCC optimize(2)
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
#include <stdio.h>
#include <cmath>
#include <algorithm>
#define rep(i,l,r) for(i=l;i<=r;++i)
using namespace std;
/*
类似一个区间平方根还有区间和的题,phi(x) 暴力跳是 log 级别的,第一问暴力。
第二问,先 i->phi(i) 建边,然后 dfn 序,最后记录 dfn 最大最小直接 lca。
反正树高 log,暴力跳。
*/
const int sq=10000,V=5000005,N=100005,inf=2e9;
int nd[sq],tag[sq],md[sq],L[sq],R[sq],lsum[sq],npos[sq],mpos[sq];
int phi[V],p[V];
bool np[V];
int n;
int v[N],son[V],own[N],top[V],siz[V],dfn[V],fat[V],dep[V];
int head[V];
class edge
{
public:
int go,nxt;
}e[V<<2];
int all,tot;
inline void add_edge(int x,int y)
{
e[++all]={head[x],y};
head[x]=all;
}
void dfs1(int id,int fa)
{
// printf("%d %d\n",id,fa);
int i,nxt;
fat[id]=fa;
dep[id]=dep[fa]+1;
siz[id]=1;
for(i=head[id];i;i=e[i].go)
{
nxt=e[i].nxt;
if(nxt==fa)
continue;
dfs1(nxt,id);
siz[id]+=siz[nxt];
if(siz[nxt]>siz[son[id]])
son[id]=nxt;
}
// printf("%d\n",id==son[id]);
return ;
}
inline void dfs2(int id,int frm)
{
int i,nxt;
// printf("%d %d %d %d\n",id,son[id],dfn[id],frm);
dfn[id]=++tot;
top[id]=frm;
if(son[id])
dfs2(son[id],frm);
for(i=head[id];i;i=e[i].go)
{
nxt=e[i].nxt;
if(nxt==fat[id] || nxt==son[id])
continue;
dfs2(nxt,nxt);
}
return ;
}
inline int lca(int x,int y)
{
// printf("%d %d no ",x,y);
while(top[x]!=top[y])
{
if(dep[top[x]]<dep[top[y]])
swap(x,y);
x=fat[top[x]];
}
// puts("lca is ok");
return dep[x]<dep[y]?x:y;
}
inline void solve(int id,int l,int r,int tag)
{
if(tag==0 || lsum[id]==r-l+1)
return ;
register int i,j;
rep(i,l,r)
rep(j,1,tag)
{
lsum[id]=lsum[id]-dep[v[i]]+dep[phi[v[i]]];
v[i]=phi[v[i]];
if(v[i]==1)
break;
}
rep(i,l,r)
{
nd[id]=min(nd[id],dfn[v[i]]);
if(nd[id]==dfn[v[i]])
npos[id]=i;
md[id]=max(md[id],dfn[v[i]]);
if(md[id]==dfn[v[i]])
mpos[id]=i;
}
return ;
}
inline void work(int op,int l,int r)
{
register int lcasum=0;
register int i,j,id;
if(op==1)
{
if(own[l]==own[r])
{
id=own[l];
rep(i,l,r)
{
lsum[id]=lsum[id]-dep[v[i]]+dep[phi[v[i]]];
v[i]=phi[v[i]];
nd[id]=min(nd[id],dfn[v[i]]);
if(nd[id]==dfn[v[i]])
npos[id]=i;
md[id]=max(md[id],dfn[v[i]]);
if(md[id]==dfn[v[i]])
mpos[id]=i;
}
}else
{
id=own[l];
rep(i,l,R[own[l]])
{
lsum[id]=lsum[id]-dep[v[i]]+dep[phi[v[i]]];
v[i]=phi[v[i]];
nd[id]=min(nd[id],dfn[v[i]]);
if(nd[id]==dfn[v[i]])
npos[id]=i;
md[id]=max(md[id],dfn[v[i]]);
if(md[id]==dfn[v[i]])
mpos[id]=i;
}
id=own[r];
rep(i,L[own[r]],r)
{
lsum[id]=lsum[id]-dep[v[i]]+dep[phi[v[i]]];
v[i]=phi[v[i]];
nd[id]=min(nd[id],dfn[v[i]]);
if(nd[id]==dfn[v[i]])
npos[id]=i;
md[id]=max(md[id],dfn[v[i]]);
if(md[id]==dfn[v[i]])
mpos[id]=i;
}
rep(i,own[l]+1,own[r]-1)
++tag[i];
}
}else
{
int ndfn,xdfn,nid,xid;
if(own[l]==own[r])
{
solve(own[l],L[own[l]],R[own[r]],tag[own[l]]);
tag[own[l]]=0;
ndfn=inf;
xdfn=-inf;
rep(i,l,r)
{
if(dfn[v[i]]<ndfn)
{
ndfn=dfn[v[i]];
nid=v[i];
}
if(dfn[v[i]]>xdfn)
{
xdfn=dfn[v[i]];
xid=v[i];
}
lcasum+=dep[v[i]];
}
printf("%d\n",lcasum-(r-l+1)*dep[lca(xid,nid)]);
}else
{
ndfn=inf;
xdfn=-inf;
solve(own[l],L[own[l]],R[own[l]],tag[own[l]]);
tag[own[l]]=0;
rep(i,l,R[own[l]])
{
if(dfn[v[i]]<ndfn)
{
ndfn=dfn[v[i]];
nid=v[i];
}
if(dfn[v[i]]>xdfn)
{
xdfn=dfn[v[i]];
xid=v[i];
}
lcasum+=dep[v[i]];
}
rep(i,own[l]+1,own[r]-1)
{
solve(i,L[i],R[i],tag[i]);
tag[i]=0;
if(nd[i]<ndfn)
{
ndfn=nd[i];
nid=v[npos[i]];
}
if(md[i]>xdfn)
{
xdfn=md[i];
xid=v[mpos[i]];
}
lcasum+=lsum[i];
}
solve(own[r],L[own[r]],R[own[r]],tag[own[r]]);
tag[own[r]]=0;
rep(i,L[own[r]],r)
{
if(dfn[v[i]]<ndfn)
{
ndfn=dfn[v[i]];
nid=v[i];
}
if(dfn[v[i]]>xdfn)
{
xdfn=dfn[v[i]];
xid=v[i];
}
lcasum+=dep[v[i]];
}
// printf("%d %d\n",lcasum,lca(xid,nid));
printf("%d\n",lcasum-(r-l+1)*dep[lca(xid,nid)]);
}
}
return ;
}
inline void pre()
{
register int i,j;
register int cnt=0;
phi[1]=1;
rep(i,2,V-1)
{
if(!np[i])
p[++cnt]=i,phi[i]=i-1;
for(j=1;j<=cnt && 1ll*i*p[j]<V;++j)
{
np[i*p[j]]=1;
if(i%p[j]==0)
{
phi[i*p[j]]=phi[i]*p[j];
break;
}
else
phi[i*p[j]]=phi[i]*phi[p[j]];
}
}
}
int main()
{
int m,l,r;
int i,j,opt,block,cnt;
scanf("%d %d",&n,&m);
rep(i,1,n)
scanf("%d",v+i);
pre();
rep(i,2,V-1)
{
add_edge(phi[i],i);
}
dfs1(1,0);
dfs2(1,1);
cnt=n/(block=1500);
rep(i,1,cnt)
{
L[i]=R[i-1]+1;
R[i]=cnt*i;
}
// rep(i,1,10)printf("phi[%d]=%d,dep[%d]=%d\n",i,phi[i],i,dep[i]);
if(R[cnt]<n)
{
++cnt;
L[cnt]=R[cnt-1]+1;
R[cnt]=n;
}
rep(i,1,cnt)
{
nd[i]=inf;
md[i]=-inf;
rep(j,L[i],R[i])
{
own[j]=i;
nd[i]=min(nd[i],dfn[v[j]]);
if(nd[i]==dfn[v[j]])
npos[i]=j;
md[i]=max(md[i],dfn[v[j]]);
if(md[i]==dfn[v[j]])
mpos[i]=j;
lsum[i]+=dep[v[j]];
}
}
// rep(i,1,n)
// printf("%d %d %d %d\n",phi[i],i,top[i],fat[i]);
while(m--)
{
scanf("%d %d %d",&opt,&l,&r);
work(opt,l,r);
}
return 0;
}
码风有点混乱邪恶
大体的思路就是去均摊,但是不知道哪里假了一直 tle on #4