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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#787158 | #8079. Range Periodicity Query | harlem | TL | 648ms | 51544kb | C++20 | 4.2kb | 2024-11-27 10:09:33 | 2024-11-27 10:09:33 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef __int128 i128;
typedef double db;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<int,ll> pil;
typedef pair<ll,int> pli;
template <typename Type>
using vec=vector<Type>;
template <typename Type>
using grheap=priority_queue<Type>;
template <typename Type>
using lrheap=priority_queue<Type,vector<Type>,greater<Type> >;
#define fir first
#define sec second
#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define chmax(a,b) a=max(a,b)
#define chmin(a,b) a=min(a,b)
#define rep(i,x,y) for(int i=x;i<=y;i++)
#define per(i,x,y) for(int i=x;i>=y;i--)
template<typename type>
inline void read(type &x)
{
x=0;static bool flag(0);char ch=getchar();
while(!isdigit(ch)) flag=ch=='-',ch=getchar();
while(isdigit(ch)) x=(x<<1)+(x<<3)+(ch^48),ch=getchar();
flag?x=-x:0;
}
template<typename type>
inline void write(type x,bool mode=1)
{
x<0?x=-x,putchar('-'):0;static short Stack[50],top(0);
do Stack[++top]=x%10,x/=10; while(x);
while(top) putchar(Stack[top--]|48);
mode?putchar('\n'):putchar(' ');
}
const int inf=0x3f3f3f3f;
const ll INF=0x3f3f3f3f3f3f3f3f;
const int mod=1e9+7/*998244353*/;
const ll bas=131;
const ull bas2=13331;
const int N=5e5+5;
int n,m,q;
char c[N];
string s;
int ls[N],rs[N];
int p[N],ts[N],tp[N];
vec<int> plc[N];
int arr[N];
struct query{
int k,l,r,id;
};
vec<query> ned[N];
int ans[N];
ll hsh[N],cf[N];
ull hsh2[N],cf2[N];
inline ll gethash(int l,int r){
return (hsh[r]-hsh[l-1]*cf[r-l+1]%mod+mod)%mod;
}
inline ll gethash2(int l,int r){
return hsh2[r]-hsh2[l-1]*cf2[r-l+1];
}
struct segment{
int dat[N*4];
void update(int x){
dat[x]=min(dat[x*2],dat[x*2+1]);
}
void build(int x=1,int l=1,int r=m){
dat[x]=inf;
if(l==r)return;
int m=l+r>>1;
build(x*2,l,m);
build(x*2+1,m+1,r);
update(x);
}
void chg(int k,int v,int x=1,int l=1,int r=m){
if(l==r){
dat[x]=v;
return;
}
int m=l+r>>1;
if(k<=m)chg(k,v,x*2,l,m);
else chg(k,v,x*2+1,m+1,r);
update(x);
}
int query(int lq,int rq,int x=1,int l=1,int r=m){
if(lq<=l&&r<=rq){
return dat[x];
}
int m=l+r>>1,res=inf;
if(lq<=m)chmin(res,query(lq,rq,x*2,l,m));
if(m<rq)chmin(res,query(lq,rq,x*2+1,m+1,r));
return res;
}
}seg;
int main(){
read(n);
int fst;
rep(i,1,n){
c[i]=getchar();
if(i==1)fst=1,s=(c[i]<'a'?c[i]-'A'+'a':c[i]);
else{
if('a'<=c[i]){
s=c[i]+s;
fst++;
}else s=s+char(c[i]-'A'+'a');
}
}
ls[1]=rs[1]=fst;
rep(i,2,n){
ls[i]=ls[i-1];rs[i]=rs[i-1];
if('a'<=c[i])ls[i]--;
else rs[i]++;
}
s=' '+s;
cf[0]=cf2[0]=1;
rep(i,1,n){
hsh[i]=(hsh[i-1]*bas%mod+s[i])%mod;
cf[i]=cf[i-1]*bas%mod;
hsh2[i]=hsh2[i-1]*bas2;
cf2[i]=cf2[i-1]*bas2;
}
rep(i,1,n){
arr[i]=i;
int l=i,r=n;
while(l<r){
int m=l+r+1>>1;
int len=m-i;
if(gethash(ls[m],ls[m]+len-1)==gethash(rs[m]-len+1,rs[m])&&
gethash2(ls[m],ls[m]+len-1)==gethash2(rs[m]-len+1,rs[m]))l=m;
else r=m-1;
}
ts[i]=l;
}
sort(arr+1,arr+1+n,[](int a,int b){return ts[a]<ts[b];});
read(m);
rep(i,1,m){
read(p[i]);
plc[p[i]].pub(i);
}
read(q);
query tq;
rep(i,1,q){
read(tq.k);read(tq.l);read(tq.r);
tq.id=i;
ned[tq.k].pub(tq);
}
seg.build();
int j=n;
per(i,n,1){
while(j>=1&&ts[arr[j]]>=i){
for(auto p:plc[arr[j]])seg.chg(p,arr[j]);
j--;
}
for(auto q:ned[i]){
int res=seg.query(q.l,q.r);
if(res>i)res=-1;
ans[q.id]=res;
}
}
rep(i,1,q)write(ans[i]);
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 20004kb
input:
7 AABAAba 9 4 3 2 1 7 5 3 6 1 6 1 4 4 2 1 4 2 1 3 3 3 5 5 4 7 7 8 9
output:
1 1 2 -1 3 6
result:
ok 6 lines
Test #2:
score: 0
Accepted
time: 648ms
memory: 51544kb
input:
200000 BAbBbBabBBbbABbbaBbaaabaBBAbBbBAAAAABBaBaAAabBAAbABaaBABAabAAAbabbAaBABAbabbAAAbbbbabBBAbbBaabBAAAbBBBbBbbAbbbBabbBABaBAaAAAbBbaABabBAbAAbBbbAbAbBaabAbBBbaaaaBaBbbABBBaaabBaBABAbBabBbbAABBbaBAbaBAbAAABABAbaabbaAAaBAbAbAbBBbaaaAaBaaABBbBAAaAAAaaABbbaAbAaBbaAaaababbaBbaAAAAAAabbBaAabbbaBBAAaABb...
output:
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 61006 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ...
result:
ok 500000 lines
Test #3:
score: 0
Accepted
time: 199ms
memory: 37288kb
input:
10 baaAaAAaAA 500000 6 8 2 3 1 8 7 3 9 4 1 6 9 4 10 10 4 3 1 7 4 3 9 7 1 2 9 3 3 1 10 8 1 6 4 1 6 10 1 5 1 8 9 9 7 3 6 3 9 1 7 6 7 7 9 10 3 2 4 10 7 3 7 1 5 3 5 1 10 1 3 2 2 4 2 3 4 10 5 2 7 10 5 6 8 9 10 6 9 7 5 4 5 4 4 2 5 8 1 9 1 2 10 8 2 5 6 6 6 4 3 1 2 2 3 5 7 4 5 7 5 8 1 8 9 7 6 3 10 7 5 4 8 8...
output:
5 4 4 2 6 3 3 4 6 3 1 6 4 5 3 5 2 5 4 4 2 5 3 5 5 1 2 5 3 5 4 3 5 6 4 5 4 6 4 6 4 1 5 4 4 3 5 3 3 4 5 5 5 4 1 6 5 5 4 4 2 4 3 5 4 5 1 5 1 1 4 4 5 4 4 3 3 4 2 4 4 4 2 4 6 5 2 5 4 3 4 2 4 5 5 4 6 1 2 6 4 5 6 1 1 3 2 3 1 4 4 3 4 4 4 3 6 5 4 5 5 4 1 2 3 4 5 4 4 4 3 6 4 4 4 2 3 3 3 3 3 6 3 5 3 4 6 3 4 5 ...
result:
ok 500000 lines
Test #4:
score: 0
Accepted
time: 217ms
memory: 39924kb
input:
500 ababbBbBabaaBAbabBbbBBAAABabBbBAAABbaBbBAAbabaBaAAaabAaABBBabababAAbaaAbbAAabAAbBbaabbBbaAAABaAaBbbBbabBAABBaabbAabbBabbbAbABaBAABaBbAaaBABBbBAAbbbBabbABABAaAaAAAbaAabBbBaaaaAAAAAabaBBAAABAbbabAaBAbAaaBBbABbBBbaaAaAaBBbaBbabBbBABbaaBbAaabBABaBBbAAaaBABBAaaABAbbaaAaBaAAbAbbbbbaabBabaBbaabaAbaBaaa...
output:
386 327 309 141 424 175 186 273 45 498 99 262 478 149 424 444 49 267 233 388 359 310 203 81 498 12 97 295 400 351 352 407 310 471 291 479 448 203 267 60 223 458 421 391 5 470 212 253 99 281 167 451 154 86 299 434 370 255 383 207 258 310 487 380 6 368 235 137 334 141 50 128 29 478 448 223 466 345 407...
result:
ok 500000 lines
Test #5:
score: 0
Accepted
time: 243ms
memory: 40208kb
input:
10000 BaBbAAaaaaBAbbbbbaBbaaAbaaaabAaaaAAbabBAbaaBABaaabaAbBBaBBABAbabBAbaaAAaAABABbbbABBaBBaABbbAAbBabaAbaBBaAbabaaAAAabAbAABAabBbBaBaAaAbbBAAABbbabAaABABaBbaAABBbbBAABbbbAaABaAaaABAbbbABAabbaAaaBbbbBaBBbAaaabbaBbaaAbabBabaBaAAAbBAabbBAbabAAbbBBBbBAAaBBbBBAbaaaAbBaaBAAbbaAbbbBAbaAaaAbBBAaBabBaaaBab...
output:
-1 5219 4322 2614 7302 1876 -1 5584 2861 3586 4821 6579 6706 1605 7878 886 9218 293 167 7298 5146 6860 2921 8263 4330 9578 7472 6086 5537 4890 8285 58 9733 -1 3157 262 9533 6943 8285 2837 451 6494 7918 8912 2187 9832 4487 2077 871 210 951 1761 6892 4304 6634 9572 9544 5744 4015 7418 7804 5928 3611 8...
result:
ok 500000 lines
Test #6:
score: 0
Accepted
time: 430ms
memory: 49036kb
input:
100000 aabAbBbaBAaabbbbbaAAABaaabbBaBAAaBabbBAbBbbBbbbaaaABaaBaBbBABBBbabBAABbabbAaaaBBaAAbABaBABAABbBAbBAAAbaBaabbAAABaBAaaaBBbBbaBabAbBBaaabaaaaBbBaAaAbAbbBaABaabBbBaAAaAaaBbbAbbaaBBbbbaAaAabaBaAaaBaAAbbBabBaBAbAaabAbbbAbaAbBbaABABAaBBABAaABBBBABAaBAbbbaBbaAABBaAabaAbaAaabAAAbbbaBBbBaaaaAaaAABbBaa...
output:
35335 42708 80231 -1 52892 27828 25395 21105 26112 55093 16568 16170 -1 73256 -1 82801 58592 52120 48659 -1 -1 -1 92581 -1 67746 9463 50384 69443 71368 -1 62536 83524 71293 88216 83685 45630 5450 969 3140 19286 79236 80564 33058 44088 24142 -1 40385 68116 -1 20399 78247 52636 37514 -1 54565 44272 75...
result:
ok 500000 lines
Test #7:
score: -100
Time Limit Exceeded
input:
500000 AaAAaaAaaaAaaaaaAaAAAaaaaAAaAAAaaAAAaAaaaaAaAaaaAaAaAAaAAaAaaAaaAaAAAAAAAAAAAAaAaAAAaAaAAAAAaaaAaAAAaAaaaAaaAaaaaaaAaaaaAaAaaAAaAAaaAAAaAaaaaaaaAaAaAaAaaAAaaaAAaAaaAAAaaaaaaaAAaAAaAaaaaaAAaAaAaaAAaaaAAaaaAaAAaaaAaAaaAAAaaAAAaAaaaaaaaaaAaAaAaAAAaaAAAAaAaAAAAAAaAAAaAaaaaaaAAaAaaAAaAAAaaaAaAAaAA...