Cod sursa(job #2353087)
| Utilizator | Data | 23 februarie 2019 21:03:26 | |
|---|---|---|---|
| Problema | Prefix | Scor | 0 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva de probleme | Marime | 0.5 kb |
#include <bits/stdc++.h>
using namespace std;
int P[1000010];
int main(){
ifstream cin("prefix.in");
ofstream cout("prefix.out");
int t;
cin>>t;
while(t--){
string A;
int p=0,m=0,ind=-1;
cin>>A;
for(int i=1;i<A.size();i++){
while(A[i]!=A[p] && p){
p=P[p-1];
}
if(A[i]==A[p]){
p++;
}
P[i]=p;
}
int s=0;
for(int i=A.size()-1;i>0;i--)
if(P[i]>=(i+1)/2 && !(P[i]%(i-P[i]+1))){
s=i;
break;
}
cout<<s+1<<'\n';
}
return 0;
}
