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#include "poszukiwania.h"
#include "message.h"

#include <vector>
#include <iostream>

using namespace std;

int xxx = 100000;

vector<long long> getNapis()
{
    int non = NumberOfNodes() - 1;
    int intervalLength = 1 + SeqLength() - SignalLength();
    int sublength = intervalLength / non;
    int begin, end;
    if (intervalLength % non != 0)
        sublength++;
    begin = (MyNodeId() - 1) * sublength + 1;
    end = MyNodeId() * sublength;
    if (end > intervalLength)
        end = intervalLength;
    end += SignalLength();
    if (end > SeqLength() + 1)
        end = SeqLength() + 1;
    
    if (MyNodeId() == xxx) cout << "Begin end " << begin << " " << end << endl;
    if (end - begin < 0)
        return vector<long long>(0);
    //vector<long long> out(SeqLength());
    vector<long long> out(end - begin);
    for (int i = begin; i < end; i++)
        out[i - begin] = SeqAt(i + 1);
    if (MyNodeId() == xxx)
        cout << "Ok" << endl;
    return out;
}

vector<long long> getWzorzec()
{
    vector<long long> out(SignalLength());
    for (int i = 0; i < out.size(); i++)
        out[i] = SignalAt(i + 1);
    return out;
}

int main() 
{
    ios_base::sync_with_stdio(0);
    if (MyNodeId() == 0)
    {
        long long out = 0;
        for (int instancja = 1; instancja < NumberOfNodes(); instancja++)
        {
            Receive(instancja);
            out += GetLL(instancja);
        }
        cout << out << endl;
    }
    else
    {
        long long out = 0;
        //TODO: Divide into chunks
        //P = Signal
        //T = Seq
        //szukamy s w m
        //s - signal
        //m - seq
        //wiec szukamy Signal w Seq
        //zatem P = Signal, T = Seq
        vector<long long> napis = getNapis();
        vector<long long> wzorzec = getWzorzec();
        long long m, i, k;
        vector<long long> T; // tablica częściowego dopasowania
        //for (i = 0; napis[i] != '\0'; i++)
        //if (napis.size() > 0 && wzorzec.size() > 0 && wzorzec.size() >= napis.size())
            for (i = 0; i < napis.size(); i++)
            {
                if (napis[i] == wzorzec[0])
                    T.push_back(i);
            }
            //for (i = 0, k = 0, m = T[k]; m + i <= napis.length() && k < T.size(); i++)
            if (MyNodeId() == xxx) cout << "ts" << T.size() << endl;
            if (T.size() > 0)
            {
                for (i = 0, k = 0, m = T[k]; m + i < napis.size() && k < T.size(); i++)
                {
                    //cout << i << endl;
                    if (wzorzec[i] != napis[m + i])
                    {  // nie pasuje
                        m = T[++k];
                        i = 0;
                    }
                    if (i == wzorzec.size() - 1) 
                    {   // pasuje
                        //places.push_back(T[k]);
                        //if (T[k] % 100 == 0)
                            //cout << T[k] << endl;
                        out++;
                        m = T[++k];
                        i = 0;
                    }
                }
            }
        if (MyNodeId() == xxx)
            cout << "Done." << endl;
        //cout << "Sending" << out << endl
        PutLL(0, out);
        Send(0); 
    }
    return 0;
}