Cod sursa(job #1809546)

Utilizator cicero23catalin viorel cicero23 Data 19 noiembrie 2016 00:34:35
Problema Prefix Scor 60
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.71 kb
#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
ifstream f("prefix.in");
ofstream g("prefix.out");
char s[100005];
int urm[100005],m;
void prefix()
{
    int i,k=0;
    urm[1]=0;
    for(i=2;i<=m;i++)
    {
        while(k>0&&s[k]!=s[i-1])
            k=urm[k];
        if(s[k]==s[i-1])k++;
        urm[i]=k;
    }

}
void kmp()
{
    int i,k=0;
    for(i=m;i>=1;i--)
    {
        if(urm[i]!=0&&(i%(i-urm[i]))==0)
        {
            g<<i<<'\n';
            break;
        }
        if(i==1) g<<0<<'\n';
    }
}
int main()
{
    int n,i;
    f>>n;

    for(i=1;i<=n;i++)
    {f>>s;
        m=strlen(s);

        prefix();
    kmp();
    }
}