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#include<iostream>
#include<string>
#include<vector>
using namespace std;
class KpmPar{
    string pattern;
    string::size_type patsize;
    int *next;
public:
    KpmPar(string pat){
        pattern=pat;
        patsize=pat.size();
        next=new int[patsize+1];
        next[0]=-1;
    }
    ~KpmPar(){delete next;}
    void calnextval(string subpat){
        /*if(subpat.size()==1){
            next[1]=0;
        }else{
            calnextval(subpat.substr(0,subpat.size()-1));
            next[subpat.size()]=0;
            int j=next[subpat.size()-1];
            while(j>=0&&subpat[subpat.size()-1]!=subpat[j]){
                j=next[j];
            }
            next[subpat.size()]=j+1;        
        }*/
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