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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#22879#2135. How Many Strings Are LessLFCodeWA 2ms20088kbC++141.7kb2022-03-10 21:27:182022-04-30 02:00:11

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-04-30 02:00:11]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:20088kb
  • [2022-03-10 21:27:18]
  • 提交

answer

//什么时候我才能有杜爷一半强啊/kk
//我是傻逼
#include<cstdio>
#include<iostream>
#include<cstring>
#define lg(x) (31-__builtin_clz(x))
using namespace std;
const int N=1000086;
int n,m,q,pc,nt,nans,c[N],prs[N],mark[N],sze[N],depth[N],t[N][26],fa[N][21],f[N][26];
char st[N],str[N];
int read(){
	char ch=getchar();int nn=0,ssss=1;
	while(ch<'0'||ch>'9'){if(ch=='-')ssss*=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){nn=nn*10+(ch-'0');ch=getchar();}
	return nn*ssss;
}
int gc(){char ch=getchar();while(ch<'a'||ch>'z')ch=getchar();return ch-'a';}
bool push(char s[]){
	int len=strlen(s+1),np=0;
	for(int i=1;i<=len&&i<=m;i++){
		int ch=s[i]-'a';
		if(!t[np][ch])t[np][ch]=++pc;
		np=t[np][ch];c[np]=ch;sze[np]++;
	}
	mark[np]++;return true;
}
bool dp(int np,int lst,int dep,int ps){
	prs[np]=ps;fa[np][0]=lst;depth[np]=dep;
	for(int i=1;(1<<i)<dep;i++)fa[np][i]=fa[fa[np][i-1]][i-1];
	ps+=mark[np];
	for(int i=0;i<26;i++){
		if(!t[np][i]){f[np][i]=np;continue;}
		dp(t[np][i],np,dep+1,ps);
		f[np][i]=f[t[np][i]][i];
		ps+=sze[t[np][i]];
	}
	return true;
}
int gf(int np,int dep){
	if(depth[np]<dep)return -1;
	for(int i=lg(depth[np]);i+1;i--)
		if(depth[np]-(1<<i)>=dep)
			np=fa[np][i];
	return np;
}
int main(){
	n=read();q=read();cin>>(st+1);m=strlen(st+1);
	for(int i=1;i<=m;i++){
		int ch=st[i]-'a';
		if(!t[nt][ch])t[nt][ch]=++pc;
		nt=t[nt][ch];
	}
	for(int i=1;i<=n;i++){cin>>(str+1);push(str);}
	dp(0,0,0,0);printf("%d\n",nans=prs[nt]);
	for(int i=1;i<=q;i++){
		int p=read();int x=gc();int nf=gf(nt,p-1);
		if(nf!=-1){
			nt=f[nf][x];nans=prs[nt];
			if(depth[nt]<m){
				for(int j=0;j<x;j++)if(t[nt][j])nans+=sze[j];
				nans+=mark[nt];
			}
		}
		printf("%d\n",nans);
	}
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 20044kb

input:

4 3
anatoly
boris
anatooo
anbbbbu
anba
5 o
3 b
7 x

output:

0
0
2
3

result:

ok 4 number(s): "0 0 2 3"

Test #2:

score: 0
Accepted
time: 2ms
memory: 20052kb

input:

5 5
abcde
buz
ababa
build
a
aba
1 b
3 z
2 u
4 z
1 a

output:

3
3
3
4
4
1

result:

ok 6 numbers

Test #3:

score: -100
Wrong Answer
time: 2ms
memory: 20088kb

input:

1 1
abababababababababababab
ababababababababababababab
23 b

output:

0
0

result:

wrong answer 2nd numbers differ - expected: '1', found: '0'