Cod sursa(job #2779127)
| Utilizator | Data | 2 octombrie 2021 18:55:24 | |
|---|---|---|---|
| Problema | Prefix | Scor | 100 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva de probleme | Marime | 0.5 kb |
#include<bits/stdc++.h>
using namespace std;
ifstream F("prefix.in");
ofstream G("prefix.out");
char s[1000001];
int n,k,p[1000001],i,d,t;
int main()
{
F>>t,F.get();
while(t--) {
F>>(s+1),k=p[1]=d=0,n=strlen(s+1);
for(i=2;i<=n;++i) {
for(;k&&s[k+1]!=s[i];k=p[k]);
if(s[k+1]==s[i])
++k;
p[i]=k;
}
for(i=n;i>1&&!d;--i)
if(p[i]&&i==(i-p[i])*(i/(i-p[i])))
d=i;
G<<d<<"\n";
}
return 0;
}
