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QOJ

IDSubmission IDProblemHackerOwnerResultSubmit timeJudge time
#699#443449#8079. Range Periodicity QueryN_z_N_z_Success!2024-06-15 15:37:072024-06-15 15:37:07

Details

Extra Test:

Wrong Answer
time: 20ms
memory: 59332kb

input:

101376
aaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaaphtlaaaatmaapht...

output:

25344

result:

wrong answer 1st lines differ - expected: '-1', found: '25344'

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#443449#8079. Range Periodicity QueryN_z_WA 1253ms198484kbC++142.3kb2024-06-15 15:35:562024-06-15 15:40:03

answer

#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define ull unsigned long long
const int N=5e5+5,inf=1e9;
const ull mod1=1e9+7;
ull Mod1(ull w){return w>=mod1?w-mod1:w;}
struct nade{
	ull h1,h2;
	nade(ull a=0,ull b=0){h1=a;h2=b;}
	nade operator * (const nade &w)const{return nade(h1*w.h1%mod1,h2*w.h2);}
	nade operator + (const int &w)const{return nade(Mod1(h1+w),h2+w);}
	nade operator - (const nade &w)const{return nade(Mod1(h1-w.h1+mod1),h2-w.h2);}
	bool operator == (const nade &w)const{return h1==w.h1&&h2==w.h2;}
}H[N],pw[N];
int mn[N*25],ls[N*25],rs[N*25],cnt,n,ans[N],p[N],l[N],r[N],qk[N],ql[N],qr[N],la,rt[N];
vector<int>id[N],E[N];
char str[N],s[N*3];
void change(int &x,int l,int r,int p,int w){
	if(x<=la){cnt++;mn[cnt]=mn[x];ls[cnt]=ls[x];rs[cnt]=rs[x];x=cnt;}
	mn[x]=min(mn[x],w);if(l==r)return;
	int mid=(l+r)>>1;
	if(mid>=p)change(ls[x],l,mid,p,w);
	else change(rs[x],mid+1,r,p,w);
}
int ask(int x,int l,int r,int L,int R){
	if(!x||l>=L&&r<=R)return mn[x];
	int mid=(l+r)>>1,rec=inf;
	if(mid>=L)rec=ask(ls[x],l,mid,L,R);
	if(mid+1<=R)rec=min(rec,ask(rs[x],mid+1,r,L,R));
	return rec;
}
nade ask(int l,int r){return H[r]-H[l-1]*pw[r-l+1];}
bool chk(int l,int r,int len){
	if(r-l+1<=len)return 1;
	return ask(l,r-len)==ask(l+len,r);
}mt19937_64 rnd(time(NULL));
int main(){
	scanf("%d%s",&n,str+1);
	int L=n+1,R=n;
	for(int i=1;i<=n;i++)
		if('A'<=str[i]&&str[i]<='Z')s[++R]=str[i]-'A'+'a';
		else s[--L]=str[i];
	for(int i=1;i<=n;i++)s[i]=s[L+i-1];
	nade base=nade(131,rnd());pw[0]=nade(1,1);
	for(int i=1;i<=n;i++)pw[i]=pw[i-1]*base;
	for(int i=1;i<=n;i++)H[i]=H[i-1]*base+(s[i]-'a'+1);
	l[n]=1;r[n]=n;
	for(int i=n;i>1;i--){
		if('A'<=str[i]&&str[i]<='Z')l[i-1]=l[i],r[i-1]=r[i]-1;
		else l[i-1]=l[i]+1,r[i-1]=r[i];
	}p[1]=1;
	for(int i=1;i<=n;i++){
		int l=1,r=n,rec=0;
		while(l<=r){
			int mid=(l+r)>>1;
			if(chk(::l[mid],::r[mid],i))rec=mid,l=mid+1;
			else r=mid-1;
		}E[rec].pb(i);
	}mn[0]=inf;int m,q;scanf("%d",&m);
	for(int i=1,d;i<=m;i++)scanf("%d",&d),id[d].pb(i);
	for(int i=n;i>=1;i--){
		la=cnt;rt[i]=rt[i+1];
		for(int w:E[i])for(auto p:id[w])
			change(rt[i],1,m,p,w);
	}scanf("%d",&q);
	for(int i=1,k,l,r;i<=q;i++){
		scanf("%d%d%d",&k,&l,&r);
		int rec=ask(rt[k],1,m,l,r);
		printf("%d\n",rec>k?-1:rec);
	}
}