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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#757413#4255. Sone2I_be_wannaCompile Error//C++2013.4kb2024-11-17 06:51:382024-11-17 06:51:38

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answer

#include<iostream>
#define ls (rt<<1)
#define rs (rt<<1|1)
using namespace std;const int N=1e5+10;const int M=(N<<1);mt19937 rnd(time(0));inline int read(){char ch=getchar();int x=0;while(!isdigit(ch)){ch=getchar();}while(isdigit(ch)){x=(x<<3)+(x<<1)+ch-48;ch=getchar();}return x;}struct SA{int n,m,s[N],sa[M],rk[M],id[M],px[M],ht[M],mn[M][20],lrk[M],cnt[M];inline bool cmp(int x,int y,int w){return lrk[x]==lrk[y]&&lrk[x+w]==lrk[y+w];}inline int lcp(int x,int y){if(x==0||y==0)return 0;if(x==y)return n-sa[x]+1;if(x>y)swap(x,y);x++;int tmp=__lg(y-x+1);return min(mn[x][tmp],mn[y-(1<<tmp)+1][tmp]);}inline void init(){int i,j,k,p,w;for(i=1;i<=n;++i)cnt[rk[i]=s[i]]++;for(i=1;i<=m;++i)cnt[i]+=cnt[i-1];for(i=n;i>=1;--i)sa[cnt[rk[i]]--]=i;for(w=1;;w<<=1,m=p){for(i=n,p=0;i>n-w;--i)id[++p]=i;for(i=1;i<=n;++i)if(sa[i]>w)id[++p]=sa[i]-w;for(i=1;i<=m;++i)cnt[i]=0;for(i=1;i<=n;++i)cnt[px[i]=rk[id[i]]]++;for(i=1;i<=m;++i)cnt[i]+=cnt[i-1];for(i=n;i>=1;--i)sa[cnt[px[i]]--]=id[i];for(i=1;i<=n;++i)lrk[i]=rk[i];for(i=1,p=0;i<=n;++i)rk[sa[i]]=cmp(sa[i],sa[i-1],w)?p:++p;if(p==n){for(i=1;i<=n;++i)sa[rk[i]]=i;break;}}for(i=1,k=0;i<=n;++i){if(k)k--;while(i+k<=n&&sa[rk[i]-1]+k<=n&&s[sa[rk[i]-1]+k]==s[i+k])k++;ht[rk[i]]=k;}for(i=1;i<=n;++i)mn[i][0]=ht[i];for(j=1;j<=16;++j)for(i=1;i+(1<<j)-1<=n;++i)mn[i][j]=min(mn[i][j-1],mn[i+(1<<(j-1))][j-1]);}inline int check(int x,int y,int p,int q){if(x==0||p==0)return 0;int l,r,mid,xl,xr,pos;l=1,r=rk[x];while(l+1<r){mid=(l+r)>>1;if(lcp(mid,rk[x])>=y-x+1)r=mid;else l=mid;}if(lcp(l,rk[x])>=y-x+1)xl=l;else xl=r;l=rk[x],r=n;while(l+1<r){mid=(l+r)>>1;if(lcp(rk[x],mid)>=y-x+1)l=mid;else r=mid;}if(lcp(rk[x],r)>=y-x+1)xr=r;else xr=l;if(rk[sa[xl]+y-x+1]<=rk[p]){l=xl,r=xr;while(l+1<r){mid=(l+r)>>1;if(rk[sa[mid]+y-x+1]<=rk[p])l=mid;else r=mid;}if(rk[sa[r]+y-x+1]<=rk[p])pos=r;else pos=l;if(lcp(rk[sa[pos]+y-x+1],rk[p])>=q-p+1)return sa[pos];}if(rk[sa[xr]+y-x+1]>=rk[p]){l=xl,r=xr;while(l+1<r){mid=(l+r)>>1;if(rk[sa[mid]+y-x+1]>=rk[p])r=mid;else l=mid;}if(rk[sa[l]+y-x+1]>=rk[p])pos=l;else pos=r;if(lcp(rk[p],rk[sa[pos]+y-x+1])>=q-p+1)return sa[pos];}return 0;}}sa;struct node{int mx,val;node(int a=0,int b=0){mx=a;val=b;}node operator+(const node&tmp)const{if(mx<tmp.mx)return tmp;else if(mx>tmp.mx)return node(mx,val);else return node(mx,val+tmp.val);}};int n,Q,m,s[N],t[N],nxt[N],f[N],mp[N];node bz[N][20];struct Cover{struct Node{int s,l,r;Node(int a=0,int b=0,int c=0){s=a;l=b;r=c;}bool operator<(const Node&tmp)const{return s<tmp.s;}};set<Node>S;node t[N<<2];void build(int rt,int l,int r){t[rt]=node(0,0);if(l==r)return;int mid=(l+r)>>1;build(ls,l,mid);build(rs,mid+1,r);}void update(int rt,int l,int r,int x,node val){if(l==r)return t[rt]=val,void();int mid=(l+r)>>1;if(x<=mid)update(ls,l,mid,x,val);else update(rs,mid+1,r,x,val);t[rt]=t[ls]+t[rs];}node query(int rt,int l,int r,int ql,int qr){if(ql<=l&&r<=qr)return t[rt];int mid=(l+r)>>1;node res=node(0,0);if(ql<=mid)res=res+query(ls,l,mid,ql,qr);if(qr>mid)res=res+query(rs,mid+1,r,ql,qr);return res;}node calc(vector<Node>&vec){int l=vec[0].l,r=vec[0].r;int len=nxt[r];if(l==1)len=r-l+1;while(len>r-l+1)len=nxt[len];node res=node(0,0);for(int i=16;i>=0;--i){if(l+(1<<i)-1>r-len)continue;res=res+bz[l][i];l+=(1<<i);}if(vec.size()==1)res=res+node(len,!!len);else if(vec.size()==2){int tmp;while(len){tmp=len+min(sa.lcp(sa.rk[vec[1].l],sa.rk[len+1]),vec[1].r-vec[1].l+1);res=res+node(tmp,1);len=nxt[len];}}else{int tmp,mem;while(len){mem=sa.lcp(sa.rk[vec[1].l],sa.rk[len+1]);if(mem>=vec[1].r-vec[1].l+1){mem=len+vec[1].r-vec[1].l+1;tmp=mem+min(sa.lcp(sa.rk[vec[2].l],sa.rk[mem+1]),vec[2].r-vec[2].l+1);}else tmp=len+mem;res=res+node(tmp,1);len=nxt[len];}}return res;}void init(){S.clear();build(1,1,n);for(int i=1;i<=n;++i){if(mp[s[i]]==0)S.insert(Node(i,0,0));else{int j=i,o=mp[s[i]],tmp;while(j<n&&mp[s[j+1]]&&(tmp=sa.check(o,o+j-i,mp[s[j+1]],mp[s[j+1]]),tmp))o=tmp,j++;S.insert(Node(i,o,o+j-i));i=j;}}auto it=S.begin();vector<Node>vec;while(it!=S.end()){if((*it).l==0){update(1,1,n,(*it).s,node(0,1));it++;continue;}else{vec.clear();vec.push_back(*it);it++;if(it!=S.end()&&(*it).l){vec.push_back(*it);it++;if(it!=S.end()&&(*it).l)vec.push_back(*it);it--;}it--;update(1,1,n,(*it).s,calc(vec));it++;}}}void change(int x){auto it=S.upper_bound(Node(x,0,0));it--;vector<Node>mem;if(it!=S.begin()){it--;mem.push_back(*it);if(it!=S.begin()){it--;mem.push_back(*it);if(it!=S.begin()){it--;mem.push_back(*it);it++;}it++;}it++;}reverse(mem.begin(),mem.end());for(auto o:mem)S.erase(S.find(o));Node now=(*it);if(x>now.s)mem.push_back(Node(now.s,now.l,now.l+x-now.s-1));mem.push_back(Node(x,mp[s[x]],mp[s[x]]));if(x<now.s+now.r-now.l)mem.push_back(Node(x+1,now.l+x-now.s+1,now.r));it++;bool pd=false;if(it!=S.end())mem.push_back(*it),pd=true;it--;S.erase(S.find(now));if(pd)S.erase(S.find(mem.back()));vector<Node>ex;for(int i=0;i<mem.size();++i){int j=i,o=mem[i].l,tmp;while(j+1<mem.size()&&mem[j+1].l&&(tmp=sa.check(o,o+mem[j+1].s-mem[i].s-1,mem[j+1].l,mem[j+1].r),tmp)){o=tmp;j++;update(1,1,n,mem[j].s,node(0,0));}ex.push_back(Node(mem[i].s,o,o+mem[j].s+mem[j].r-mem[j].l-mem[i].s));i=j;}for(auto o:ex)S.insert(o);vector<Node>vec;for(auto o:ex){it=S.lower_bound(o);if(o.l==0){update(1,1,n,o.s,node(0,1));continue;}else{vec.clear();vec.push_back(o);it++;if(it!=S.end()&&(*it).l){vec.push_back(*it);it++;if(it!=S.end()&&(*it).l)vec.push_back(*it);it--;}it--;update(1,1,n,o.s,calc(vec));}}}node work(int l,int r){auto itl=S.upper_bound(Node(l,0,0));itl--;auto itr=S.upper_bound(Node(r,0,0));itr--;auto it=itr;for(int i=0;i<4;++i){if(it==S.begin())break;it--;}if((*it).s<=(*itl).s){it=itl;vector<Node>mem;Node tmp;while(it!=S.end()&&(*it).s<=(*itr).s){tmp=(*it);if(tmp.s<l){int del=l-tmp.s;tmp.s+=del;tmp.l+=del;}if(tmp.s+tmp.r-tmp.l>r){int del=tmp.s+tmp.r-tmp.l-r;tmp.r-=del;}mem.push_back(tmp);it++;}vector<Node>ex;for(int i=0;i<mem.size();++i){int j=i,o=mem[i].l,tmp;while(j+1<mem.size()&&mem[j+1].l&&(tmp=sa.check(o,o+mem[j+1].s-mem[i].s-1,mem[j+1].l,mem[j+1].r),tmp))o=tmp,j++;ex.push_back(Node(mem[i].s,o,o+mem[j].s+mem[j].r-mem[j].l-mem[i].s));i=j;}vector<Node>vec;node res=node(0,0);Node now;for(int i=0;i<ex.size();++i){now=ex[i];if(now.l==0)res=res+node(0,1);else{vec.clear();vec.push_back(now);int j=i+1;if(j<ex.size()&&ex[j].l){vec.push_back(ex[j]);j++;if(j<ex.size()&&ex[j].l)vec.push_back(ex[j]);}res=res+calc(vec);}}return res;}else{Node nowl=(*itl);if(nowl.s<l){int del=l-nowl.s;nowl.s+=del;nowl.l+=del;}itl++;Node nxtl=(*itl);int tmp=sa.check(nowl.l,nowl.r,nxtl.l,nxtl.r);int L,R;node res=node(0,0);if(tmp){L=nxtl.s+nxtl.r-nxtl.l+1;nowl.l=tmp;nowl.r=nowl.l+nxtl.s+nxtl.r-nxtl.l-nowl.s;vector<Node>vec;vec.push_back(nowl);itl++;if(itl!=S.end()&&(*itl).l){vec.push_back(*itl);itl++;if(itl!=S.end()&&(*itl).l)vec.push_back(*itl);}res=res+calc(vec);}else{L=nxtl.s;if(nowl.l){vector<Node>vec;vec.push_back(nowl);if(nxtl.l){vec.push_back(nxtl);itl++;if(itl!=S.end()&&(*itl).l)vec.push_back(*itl);}res=res+calc(vec);}}it=itr;it--;Node nowr=(*itr),nxtr=(*it);if(nowr.s+nowr.r-nowr.l>r){int del=nowr.s+nowr.r-nowr.l-r;nowr.r-=del;}tmp=sa.check(nxtr.l,nxtr.r,nowr.l,nowr.r);if(tmp){nxtr.l=tmp;nxtr.r=nxtr.l+nowr.s+nowr.r-nowr.l-nxtr.s;vector<Node>vec;vec.push_back(nxtr);res=res+calc(vec);it--;if((*it).l){vec.clear();vec.push_back(*it);vec.push_back(nxtr);res=res+calc(vec);}it--;if((*it).l){vec.clear();vec.push_back(*it);it++;if((*it).l){vec.push_back(*it);vec.push_back(nxtr);}res=res+calc(vec);it--;}R=(*it).s-1;}else{vector<Node>vec;if(nowr.l){vec.clear();vec.push_back(nowr);res=res+calc(vec);}if(nxtr.l){vec.clear();vec.push_back(nxtr);if(nowr.l)vec.push_back(nowr);res=res+calc(vec);}it--;if((*it).l){vec.clear();vec.push_back(*it);if(nxtr.l){vec.push_back(nxtr);if(nowr.l)vec.push_back(nowr);}res=res+calc(vec);}R=(*it).s-1;}res=res+query(1,1,n,L,R);return res;}}}T;int main(){int ID=read();n=read();for(int i=1;i<=n;++i)s[i]=read();sa.n=sa.m=m=read();for(int i=1;i<=m;++i)t[i]=sa.s[i]=read(),mp[t[i]]=i;sa.init();for(int i=2,j=0;i<=m;++i){while(j&&t[j+1]!=t[i])j=nxt[j];if(t[j+1]==t[i])j++;nxt[i]=j;}for(int i=1,j=0;i<=n;++i){while(j&&(j==m||t[j+1]!=s[i]))j=nxt[j];if(t[j+1]==s[i])j++;f[i]=j;}for(int i=1;i<=m;++i)bz[i][0]=node(sa.lcp(sa.rk[1],sa.rk[i]),1);for(int j=1;j<=16;++j)for(int i=1;i+(1<<j)-1<=m;++i)bz[i][j]=bz[i][j-1]+bz[i+(1<<(j-1))][j-1];T.init();Q=read();int x,y,z,p,q;while(Q--){x=read();if(x==1){y=read();z=read();s[y]=z;T.change(y);printf("%d %d\n",T.t[1].mx,T.t[1].val);}else if(x==2){y=read();z=read();node res=T.work(y,z);printf("%d %d\n",res.mx,res.val);}else if(x==3){y=read();z=read();printf("%d\n",sa.lcp(sa.rk[y],sa.rk[z]));}else{y=read();z=read();p=read();q=read();if(sa.check(y,z,p,q))puts("yes");else puts("no");}}return 0;}
/*
#define ls (rt<<1)
#define rs (rt<<1|1)
using namespace std;const int N=1e5+10;const int M=(N<<1);mt19937 rnd(time(0));inline int read(){char ch=getchar();int x=0;while(!isdigit(ch)){ch=getchar();}while(isdigit(ch)){x=(x<<3)+(x<<1)+ch-48;ch=getchar();}return x;}struct SA{int n,m,s[N],sa[M],rk[M],id[M],px[M],ht[M],mn[M][20],lrk[M],cnt[M];inline bool cmp(int x,int y,int w){return lrk[x]==lrk[y]&&lrk[x+w]==lrk[y+w];}inline int lcp(int x,int y){if(x==0||y==0)return 0;if(x==y)return n-sa[x]+1;if(x>y)swap(x,y);x++;int tmp=__lg(y-x+1);return min(mn[x][tmp],mn[y-(1<<tmp)+1][tmp]);}inline void init(){int i,j,k,p,w;for(i=1;i<=n;++i)cnt[rk[i]=s[i]]++;for(i=1;i<=m;++i)cnt[i]+=cnt[i-1];for(i=n;i>=1;--i)sa[cnt[rk[i]]--]=i;for(w=1;;w<<=1,m=p){for(i=n,p=0;i>n-w;--i)id[++p]=i;for(i=1;i<=n;++i)if(sa[i]>w)id[++p]=sa[i]-w;for(i=1;i<=m;++i)cnt[i]=0;for(i=1;i<=n;++i)cnt[px[i]=rk[id[i]]]++;for(i=1;i<=m;++i)cnt[i]+=cnt[i-1];for(i=n;i>=1;--i)sa[cnt[px[i]]--]=id[i];for(i=1;i<=n;++i)lrk[i]=rk[i];for(i=1,p=0;i<=n;++i)rk[sa[i]]=cmp(sa[i],sa[i-1],w)?p:++p;if(p==n){for(i=1;i<=n;++i)sa[rk[i]]=i;break;}}for(i=1,k=0;i<=n;++i){if(k)k--;while(i+k<=n&&sa[rk[i]-1]+k<=n&&s[sa[rk[i]-1]+k]==s[i+k])k++;ht[rk[i]]=k;}for(i=1;i<=n;++i)mn[i][0]=ht[i];for(j=1;j<=16;++j)for(i=1;i+(1<<j)-1<=n;++i)mn[i][j]=min(mn[i][j-1],mn[i+(1<<(j-1))][j-1]);}inline int check(int x,int y,int p,int q){if(x==0||p==0)return 0;int l,r,mid,xl,xr,pos;l=1,r=rk[x];while(l+1<r){mid=(l+r)>>1;if(lcp(mid,rk[x])>=y-x+1)r=mid;else l=mid;}if(lcp(l,rk[x])>=y-x+1)xl=l;else xl=r;l=rk[x],r=n;while(l+1<r){mid=(l+r)>>1;if(lcp(rk[x],mid)>=y-x+1)l=mid;else r=mid;}if(lcp(rk[x],r)>=y-x+1)xr=r;else xr=l;if(rk[sa[xl]+y-x+1]<=rk[p]){l=xl,r=xr;while(l+1<r){mid=(l+r)>>1;if(rk[sa[mid]+y-x+1]<=rk[p])l=mid;else r=mid;}if(rk[sa[r]+y-x+1]<=rk[p])pos=r;else pos=l;if(lcp(rk[sa[pos]+y-x+1],rk[p])>=q-p+1)return sa[pos];}if(rk[sa[xr]+y-x+1]>=rk[p]){l=xl,r=xr;while(l+1<r){mid=(l+r)>>1;if(rk[sa[mid]+y-x+1]>=rk[p])r=mid;else l=mid;}if(rk[sa[l]+y-x+1]>=rk[p])pos=l;else pos=r;if(lcp(rk[p],rk[sa[pos]+y-x+1])>=q-p+1)return sa[pos];}return 0;}}sa;struct node{int mx,val;node(int a=0,int b=0){mx=a;val=b;}node operator+(const node&tmp)const{if(mx<tmp.mx)return tmp;else if(mx>tmp.mx)return node(mx,val);else return node(mx,val+tmp.val);}};int n,Q,m,s[N],t[N],nxt[N],f[N],mp[N];node bz[N][20];struct Cover{struct Node{int s,l,r;Node(int a=0,int b=0,int c=0){s=a;l=b;r=c;}bool operator<(const Node&tmp)const{return s<tmp.s;}};set<Node>S;node t[N<<2];void build(int rt,int l,int r){t[rt]=node(0,0);if(l==r)return;int mid=(l+r)>>1;build(ls,l,mid);build(rs,mid+1,r);}void update(int rt,int l,int r,int x,node val){if(l==r)return t[rt]=val,void();int mid=(l+r)>>1;if(x<=mid)update(ls,l,mid,x,val);else update(rs,mid+1,r,x,val);t[rt]=t[ls]+t[rs];}node query(int rt,int l,int r,int ql,int qr){if(ql<=l&&r<=qr)return t[rt];int mid=(l+r)>>1;node res=node(0,0);if(ql<=mid)res=res+query(ls,l,mid,ql,qr);if(qr>mid)res=res+query(rs,mid+1,r,ql,qr);return res;}node calc(vector<Node>&vec){int l=vec[0].l,r=vec[0].r;int len=nxt[r];if(l==1)len=r-l+1;while(len>r-l+1)len=nxt[len];node res=node(0,0);for(int i=16;i>=0;--i){if(l+(1<<i)-1>r-len)continue;res=res+bz[l][i];l+=(1<<i);}if(vec.size()==1)res=res+node(len,!!len);else if(vec.size()==2){int tmp;while(len){tmp=len+min(sa.lcp(sa.rk[vec[1].l],sa.rk[len+1]),vec[1].r-vec[1].l+1);res=res+node(tmp,1);len=nxt[len];}}else{int tmp,mem;while(len){mem=sa.lcp(sa.rk[vec[1].l],sa.rk[len+1]);if(mem>=vec[1].r-vec[1].l+1){mem=len+vec[1].r-vec[1].l+1;tmp=mem+min(sa.lcp(sa.rk[vec[2].l],sa.rk[mem+1]),vec[2].r-vec[2].l+1);}else tmp=len+mem;res=res+node(tmp,1);len=nxt[len];}}return res;}void init(){S.clear();build(1,1,n);for(int i=1;i<=n;++i){if(mp[s[i]]==0)S.insert(Node(i,0,0));else{int j=i,o=mp[s[i]],tmp;while(j<n&&mp[s[j+1]]&&(tmp=sa.check(o,o+j-i,mp[s[j+1]],mp[s[j+1]]),tmp))o=tmp,j++;S.insert(Node(i,o,o+j-i));i=j;}}auto it=S.begin();vector<Node>vec;while(it!=S.end()){if((*it).l==0){update(1,1,n,(*it).s,node(0,1));it++;continue;}else{vec.clear();vec.push_back(*it);it++;if(it!=S.end()&&(*it).l){vec.push_back(*it);it++;if(it!=S.end()&&(*it).l)vec.push_back(*it);it--;}it--;update(1,1,n,(*it).s,calc(vec));it++;}}}void change(int x){auto it=S.upper_bound(Node(x,0,0));it--;vector<Node>mem;if(it!=S.begin()){it--;mem.push_back(*it);if(it!=S.begin()){it--;mem.push_back(*it);if(it!=S.begin()){it--;mem.push_back(*it);it++;}it++;}it++;}reverse(mem.begin(),mem.end());for(auto o:mem)S.erase(S.find(o));Node now=(*it);if(x>now.s)mem.push_back(Node(now.s,now.l,now.l+x-now.s-1));mem.push_back(Node(x,mp[s[x]],mp[s[x]]));if(x<now.s+now.ror(int j=1;j<=16;++j)for(int i=1;i+(1<<j)-1<=m;++i)bz[i][j]=bz[i][j-1]+bz[i+(1<<(j-1))][j-1];T.init();Q=read();int x,y,z,p,q;while(Q--){x=read();if(x==1){y=read();z=read();s[y]=z;T.change(y);printf("%d %d\n",T.t[1].mx,T.t[1].val);}else if(x==2){y=read();z=read();node res=T.work(y,z);printf("%d %d\n",res.mx,res.val);}else if(x==3){y=read();z=read();printf("%d\n",sa.lcp(sa.rk[y],sa.rk[z]));}else{y=read();z=read();p=read();q=read();if(sa.check(y,z,p,q))puts("yes");else puts("no");}}return 0;}*/

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answer.code:4:59: error: ‘mt19937’ does not name a type
    4 | using namespace std;const int N=1e5+10;const int M=(N<<1);mt19937 rnd(time(0));inline int read(){char ch=getchar();int x=0;while(!isdigit(ch)){ch=getchar();}while(isdigit(ch)){x=(x<<3)+(x<<1)+ch-48;ch=getchar();}return x;}struct SA{int n,m,s[N],sa[M],rk[M],id[M],px[M],ht[M],mn[M][20],lrk[M],cnt[M];inline bool cmp(int x,int y,int w){return lrk[x]==lrk[y]&&lrk[x+w]==lrk[y+w];}inline int lcp(int x,int y){if(x==0||y==0)return 0;if(x==y)return n-sa[x]+1;if(x>y)swap(x,y);x++;int tmp=__lg(y-x+1);return min(mn[x][tmp],mn[y-(1<<tmp)+1][tmp]);}inline void init(){int i,j,k,p,w;for(i=1;i<=n;++i)cnt[rk[i]=s[i]]++;for(i=1;i<=m;++i)cnt[i]+=cnt[i-1];for(i=n;i>=1;--i)sa[cnt[rk[i]]--]=i;for(w=1;;w<<=1,m=p){for(i=n,p=0;i>n-w;--i)id[++p]=i;for(i=1;i<=n;++i)if(sa[i]>w)id[++p]=sa[i]-w;for(i=1;i<=m;++i)cnt[i]=0;for(i=1;i<=n;++i)cnt[px[i]=rk[id[i]]]++;for(i=1;i<=m;++i)cnt[i]+=cnt[i-1];for(i=n;i>=1;--i)sa[cnt[px[i]]--]=id[i];for(i=1;i<=n;++i)lrk[i]=rk[i];for(i=1,p=0;i<=n;++i)rk[sa[i]]=cmp(sa[i],sa[i-1],w)?p:++p;if(p==n){for(i=1;i<=n;++i)sa[rk[i]]=i;break;}}for(i=1,k=0;i<=n;++i){if(k)k--;while(i+k<=n&&sa[rk[i]-1]+k<=n&&s[sa[rk[i]-1]+k]==s[i+k])k++;ht[rk[i]]=k;}for(i=1;i<=n;++i)mn[i][0]=ht[i];for(j=1;j<=16;++j)for(i=1;i+(1<<j)-1<=n;++i)mn[i][j]=min(mn[i][j-1],mn[i+(1<<(j-1))][j-1]);}inline int check(int x,int y,int p,int q){if(x==0||p==0)return 0;int l,r,mid,xl,xr,pos;l=1,r=rk[x];while(l+1<r){mid=(l+r)>>1;if(lcp(mid,rk[x])>=y-x+1)r=mid;else l=mid;}if(lcp(l,rk[x])>=y-x+1)xl=l;else xl=r;l=rk[x],r=n;while(l+1<r){mid=(l+r)>>1;if(lcp(rk[x],mid)>=y-x+1)l=mid;else r=mid;}if(lcp(rk[x],r)>=y-x+1)xr=r;else xr=l;if(rk[sa[xl]+y-x+1]<=rk[p]){l=xl,r=xr;while(l+1<r){mid=(l+r)>>1;if(rk[sa[mid]+y-x+1]<=rk[p])l=mid;else r=mid;}if(rk[sa[r]+y-x+1]<=rk[p])pos=r;else pos=l;if(lcp(rk[sa[pos]+y-x+1],rk[p])>=q-p+1)return sa[pos];}if(rk[sa[xr]+y-x+1]>=rk[p]){l=xl,r=xr;while(l+1<r){mid=(l+r)>>1;if(rk[sa[mid]+y-x+1]>=rk[p])r=mid;else l=mid;}if(rk[sa[l]+y-x+1]>=rk[p])pos=l;else pos=r;if(lcp(rk[p],rk[sa[pos]+y-x+1])>=q-p+1)return sa[pos];}return 0;}}sa;struct node{int mx,val;node(int a=0,int b=0){mx=a;val=b;}node operator+(const node&tmp)const{if(mx<tmp.mx)return tmp;else if(mx>tmp.mx)return node(mx,val);else return node(mx,val+tmp.val);}};int n,Q,m,s[N],t[N],nxt[N],f[N],mp[N];node bz[N][20];struct Cover{struct Node{int s,l,r;Node(int a=0,int b=0,int c=0){s=a;l=b;r=c;}bool operator<(const Node&tmp)const{return s<tmp.s;}};set<Node>S;node t[N<<2];void build(int rt,int l,int r){t[rt]=node(0,0);if(l==r)return;int mid=(l+r)>>1;build(ls,l,mid);build(rs,mid+1,r);}void update(int rt,int l,int r,int x,node val){if(l==r)return t[rt]=val,void();int mid=(l+r)>>1;if(x<=mid)update(ls,l,mid,x,val);else update(rs,mid+1,r,x,val);t[rt]=t[ls]+t[rs];}node query(int rt,int l,int r,int ql,int qr){if(ql<=l&&r<=qr)return t[rt];int mid=(l+r)>>1;node res=node(0,0);if(ql<=mid)res=res+query(ls,l,mid,ql,qr);if(qr>mid)res=res+query(rs,mid+1,r,ql,qr);return res;}node calc(vector<Node>&vec){int l=vec[0].l,r=vec[0].r;int len=nxt[r];if(l==1)len=r-l+1;while(len>r-l+1)len=nxt[len];node res=node(0,0);for(int i=16;i>=0;--i){if(l+(1<<i)-1>r-len)continue;res=res+bz[l][i];l+=(1<<i);}if(vec.size()==1)res=res+node(len,!!len);else if(vec.size()==2){int tmp;while(len){tmp=len+min(sa.lcp(sa.rk[vec[1].l],sa.rk[len+1]),vec[1].r-vec[1].l+1);res=res+node(tmp,1);len=nxt[len];}}else{int tmp,mem;while(len){mem=sa.lcp(sa.rk[vec[1].l],sa.rk[len+1]);if(mem>=vec[1].r-vec[1].l+1){mem=len+vec[1].r-vec[1].l+1;tmp=mem+min(sa.lcp(sa.rk[vec[2].l],sa.rk[mem+1]),vec[2].r-vec[2].l+1);}else tmp=len+mem;res=res+node(tmp,1);len=nxt[len];}}return res;}void init(){S.clear();build(1,1,n);for(int i=1;i<=n;++i){if(mp[s[i]]==0)S.insert(Node(i,0,0));else{int j=i,o=mp[s[i]],tmp;while(j<n&&mp[s[j+1]]&&(tmp=sa.check(o,o+j-i,mp[s[j+1]],mp[s[j+1]]),tmp))o=tmp,j++;S.insert(Node(i,o,o+j-i));i=j;}}auto it=S.begin();vector<Node>vec;while(it!=S.end()){if((*it).l==0){update(1,1,n,(*it).s,node(0,1));it++;continue;}else{vec.clear();vec.push_back(*it);it++;if(it!=S.end()&&(*it).l){vec.push_back(*it);it++;if(it!=S.end()&&(*it).l)vec.push_back(*it);it--;}it--;update(1,1,n,(*it).s,calc(vec));it++;}}}void change(int x){auto it=S.upper_bound(Node(x,0,0));it--;vector<Node>mem;if(it!=S.begin()){it--;mem.push_back(*it);if(it!=S.begin()){it--;mem.push_back(*it);if(it!=S.begin()){it--;mem.push_back(*it);it++;}it++;}it++;}reverse(mem.begin(),mem.end());for(auto o:mem)S.erase(S.find(o));Node now=(*it);if(x>now.s)mem.push_back(Node(now.s,now.l,now.l+x-now.s-1));mem.push_back(Node(x,mp[s[x]],mp[s[x]]));if(x<now.s+now.r-now.l)mem.push_back(Node(x+1,now.l+x-now.s+1,now.r));it++;bool pd=false;if(it!=S.end())mem.push_back(*it),pd=true;it--;S.erase(S.find(now));if(pd)S.erase(S.find(mem.back()));vector<Node>ex;for(int i=0;i<mem.size();++i){int j=i,o=mem[i].l,tmp;while(j+1<mem.size()&&mem[j+1].l&&(tmp=sa.check(o,o+mem[j+1].s-mem[i].s-1,mem[j+1].l,mem[j+1].r),tmp)){o=tmp;j++;update(1,1,n,mem[j].s,node(0,0));}e...