19 и

#include <iostream>
#include <fstream>
using namespace std;
struct Postavka
{
    int Ndet;
    int post;
    int Kolv;
    int month;
    int year;

};
struct Complete
{
    int nomDet;
    int nomPost;
    int month;
    int year;
    int count;
};
void formBinPost(ifstream &f, ofstream &g)
{
    Postavka a;
    while (f.peek() != EOF)
    {
        f >> a.Ndet >> a.post >> a.Kolv >> a.month >> a.year;
        g.write((char *)&a, sizeof Postavka);
    }
}
void formBinComplete(ifstream &f, ofstream &g)
{
    Complete b;
    while (f.peek() != EOF)
    {
        f >> b.nomDet >> b.nomPost >> b.count >> b.month >> b.year;
        g.write((char *)&b, sizeof Complete);
    }
}
void formNewBin(ifstream &f, ifstream &f1, ofstream &g)
{
    Postavka a;
    Complete b;
    f.read((char *)&a, sizeof Postavka);
    f1.read((char *)&b, sizeof Complete);
    while (!f1.eof())
    {
        if (a.Ndet == b.nomDet && a.post == b.nomPost &&!f1.eof())
        {
            a.Kolv += b.count;
            if (a.year < b.year)
            {
                a.month = b.month;
                a.year = b.year;
            }
            if (a.year == b.year&&a.month < b.month)
                a.month = b.month;
            g.write((char *)&a, sizeof Postavka);
            f1.read((char *)&b, sizeof Complete);
            f.read((char *)&a, sizeof Postavka);
        }

            else if ((a.Ndet != b.nomDet  && !f.eof()) || (a.post != b.nomPost && a.Ndet == b.nomDet && !f.eof()))
            {
                if ((a.Ndet < b.nomDet) || (a.Ndet == b.nomDet&&a.post < b.nomPost))
                {
                    g.write((char*)&a, sizeof(Postavka));
                    f.read((char*)&a, sizeof(Postavka));
                }
                else if ((a.Ndet > b.nomDet) || (a.Ndet == b.nomDet && a.post > b.nomPost))
                {
                    g.write((char*)&b, sizeof(Postavka));
                    f1.read((char*)&b, sizeof(Complete));
                }
            }
    }

    if (f1.eof() && !f.eof())
    {
        while (!f.eof())
        {
            g.write((char *)&a, sizeof Postavka);
            f.read((char *)&a, sizeof Postavka);
        }
    }
}
void showNewBin(ifstream &f)
{
    Postavka a;
    while (f.peek() != EOF)
    {
        f.read((char *)&a, sizeof Postavka);
        cout << a.Ndet << ' ' << a.post << ' ' << a.Kolv << ' ' << a.month << ' ' << a.year << endl;
    }
}
int main()
{
    setlocale(LC_ALL, "RUS");
    ifstream in("Поставки.txt");
    ofstream outBinPost("Rezult.bin", ios::binary);
    formBinPost(in, outBinPost);
    in.close();
    outBinPost.close();
    ifstream in1("Новые.txt");
    ofstream outBinRazriv("Text1.bin", ios::binary);
    formBinComplete(in1, outBinRazriv);
    in1.close();
    outBinRazriv.close();
    ifstream inBin("Rezult.bin", ios::binary);
    ifstream inBin1("Text1.bin", ios::binary);
    ofstream outBin("rezult1.bin", ios::binary);
    formNewBin(inBin, inBin1, outBin);
    outBin.close();
    inBin.close();
    inBin1.close();
    ifstream outBinin("rezult1.bin", ios::binary);
    showNewBin(outBinin);
    system("pause");
    return 0;
}