Cod sursa(job #1340576)
| Utilizator | Data | 11 februarie 2015 21:53:42 | |
|---|---|---|---|
| Problema | Prefix | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.68 kb |
#include <fstream>
#include <cstring>
#define DIM 1000002
using namespace std;
ifstream fin("prefix.in");
ofstream fout("prefix.out");
int T,P[DIM],L,n,sol;
char A[DIM];
int main(){
fin>>T;
while(T--){
fin>>A+1;
n=strlen(A+1);
P[1]=0;
L=0;
for(int i=2;i<=n;i++){
while(L!=0 && A[i]!=A[L+1])
L=P[L];
if(A[i]==A[L+1])
L++;
P[i]=L;
}
for(int i=n;i>=1;i--)
if(P[i]>0 && i%(i-P[i])==0){
sol=i;
break;
}
fout<<sol<<'\n';
}
fin.close();fout.close();
return 0;
}
