Cod sursa(job #3329027)

Utilizator iustin.dumiDumitrescu Iustin iustin.dumi Data 11 decembrie 2025 16:18:03
Problema Prefix Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.77 kb
#include <bits/stdc++.h>
using namespace std;
ifstream fin("prefix.in");
ofstream fout("prefix.out");
int lps[2000001],i,j,sol[1005],nr,t;
string a,b;
void prefix(string a)
{ int i,k=0,nr=0;
  int n=a.size();
for (i=2; i<=n; i++)
{
while (k && a[k]!=a[i-1]) k=lps[k];
if (a[k]==a[i-1]) k++;
lps[i]=k;
 if(lps[i]!=0 && (i)%(i-lps[i])==0)
    nr=i;
}
fout<<nr<<'\n';
}
void kmp()
{int i, k=0;
 int m=b.size(),n=a.size();
 //buildPrefix();
for (int i=0;i<m;i++)
{
while (k && a[k]!=b[i])
      k=lps[k];
if (a[k]==b[i]) k++;
if (k==n )
   {nr++;
    if(nr<=1000)
       sol[nr]=i-n+1;
   }
}
fout<<nr<<'\n';
}

int main()
{ fin>>t;
  for(i=1;i<=t;i++)
  {fin>>a;
   prefix(a);
   for(j=0;j<a.size();j++)
       lps[j]=0;

  }
    return 0;
}