Бинарные фаилы_конфеты

#include <iostream>
#include<fstream>
#include<string>
using namespace std;
struct Date
{
    int day;
    int month;
    int year;

};
struct Candy
{
    int code_of_candy;
    int code_of_manufact;
    Date date_of_production;
    int expiration_date;
    double taste;
    int stuffing;
    double calorie;
    bool russia;
};
bool expiration_test(int day_p, int month_p, int year_p, int expiration_date)
{
    Date c = { 0 };
    int now = 28 + (3* 30) + (2019* 365);
    int last_day = day_p + (month_p * 30) + (year_p * 365) + (expiration_date * 30);
    if (last_day <= now)
        return 1;
    else
        return 0;


}
void date_of_last_day(int month_p, int year_p, int expiration_date, int lm, int ly)
{
    int last_month = month_p + expiration_date;
    if (last_month > 12)
    {
        year_p = last_month / 12;
        last_month %= 12;

    }
    lm = last_month;
    ly = year_p;



}
void create_candy(Candy *a, int n, ifstream&f)
{
    string dat;
    for (int i = 0; i < n; i++)
    {
        f >> a[i].code_of_candy;
        f >> a[i].code_of_manufact;
        f >> dat;
        a[i].date_of_production.day = (dat[0] - '0') * 10 + (dat[1] - '0');
        a[i].date_of_production.month = (dat[3] - '0') * 10 + (dat[4] - '0');
        a[i].date_of_production.year = (dat[6] - '0') * 1000 + (dat[7] - '0') * 100 + (dat[8] - '0') * 10 + (dat[9] - '0');
        f >> a[i].expiration_date;
        f >> a[i].taste;
        f >> a[i].stuffing;
        f >> a[i].calorie;
        f >> a[i].russia;

    }

}
void output1(ofstream&out1, Candy *a, int n)
{
    int k = 0;
    int lm = 0, ly = 0;

    for (int i = 0; i < n; i++)
    {
        date_of_last_day(a[i].date_of_production.month, a[i].date_of_production.year, a[i].expiration_date, lm, ly);
        if (expiration_test(a[i].date_of_production.day, a[i].date_of_production.month, a[i].date_of_production.year, a[i].expiration_date))
        {
            out1.write((char*)&a[i].code_of_candy, sizeof(a[i].code_of_candy));
            out1.write((char*)&a[i].code_of_manufact, sizeof(a[i].code_of_manufact));
            out1.write((char*)&a[i].date_of_production.day, sizeof(a[i].date_of_production.day));
            out1.write((char*)&lm, sizeof(lm));
            out1.write((char*)&ly, sizeof(ly));
            k++;


        }

    }cout << "Quantity of candy in out1=" << k;
        cout << endl;
}
void sort_calorie(Candy *a, int n)
{
    int i, j;
    Candy b;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j > n - 1; j++)
        {
            if (a[j - 1].calorie > a[j].calorie)
            {
                b = a[j - 1];
                a[j - 1] = a[j];
                a[j] = b;
            }

        }
    }
}

void output2(ofstream&out2, Candy *a, int n)
{
    sort_calorie(a, n);
    for (int i = 0; i < n; i++)
    {
        out2.write((char*)&a[i].code_of_candy, sizeof(a[i].code_of_candy));
        out2.write((char*)&a[i].code_of_manufact, sizeof(a[i].code_of_manufact));
        out2.write((char*)&a[i].taste, sizeof(a[i].taste));
        out2.write((char*)&a[i].stuffing, sizeof(a[i].stuffing));

    }
    cout << "Quantity in out2=" << n;
    cout << endl;

}
void output3(ofstream&out3, Candy *a, int n)
{
    int k = 0;
    for (int i = 0; i < n; i++)
    {
        if (a[i].russia && a[i].taste > 80)
        {
            out3.write((char*)&a[i].code_of_candy, sizeof(a[i].code_of_candy));
            out3.write((char*)&a[i].code_of_manufact, sizeof(a[i].code_of_manufact));
            out3.write((char*)&a[i].date_of_production.day, sizeof(a[i].date_of_production.day));
            out3.write((char*)&a[i].date_of_production.month, sizeof(a[i].date_of_production.month));
            out3.write((char*)&a[i].date_of_production.year, sizeof(a[i].date_of_production.year));
            out3.write((char*)&a[i].taste, sizeof(a[i].taste));
            out3.write((char*)&a[i].stuffing, sizeof(a[i].stuffing));
            out3.write((char*)&a[i].calorie, sizeof(a[i].calorie));
            out3.write((char*)&a[i].russia, sizeof(a[i].russia));
            k++;
        }

    }
    cout << "Quantity in out3=" << k;
    cout << endl;
}
void output4(ofstream&out4, Candy *a, int n)
{
    int k = 0;
    for (int i = 0; i < n; i++)
    {
        if (a[i].taste <= 50 & a[i].stuffing % 3 == 0)
        {
            out4.write((char*)&a[i].code_of_candy, sizeof(a[i].code_of_candy));
            out4.write((char*)&a[i].code_of_manufact, sizeof(a[i].code_of_manufact));
            out4.write((char*)&a[i].date_of_production.day, sizeof(a[i].date_of_production.day));
            out4.write((char*)&a[i].date_of_production.month, sizeof(a[i].date_of_production.month));
            out4.write((char*)&a[i].date_of_production.year, sizeof(a[i].date_of_production.year));
            out4.write((char*)&a[i].taste, sizeof(a[i].taste));
            out4.write((char*)&a[i].stuffing, sizeof(a[i].stuffing));
            k++;
        }
    }
    cout << "Quantity in out4=" << k;
    cout << endl;

}
int main()
{
    ifstream in("lolipop (1).txt");
    ofstream out1("outt1.bin", ios::binary);
    ofstream out2("outt2.bin", ios::binary);
    ofstream out3("outt3.bin", ios::binary);
    ofstream out4("outt4.bin", ios::binary);
    if (in.eof())
    {
        cout << "Can't open file in";
        exit(1);
    }
    int n;
    cout << "Enter quantity of candy=";
    cin >> n;
    cout << endl;
    Candy *a;
    a = new Candy[n];
    create_candy(a, n, in);
    output1(out1, a, n);
    output2(out2, a, n);
    output3(out3, a, n);
    output4(out4, a, n);
    in.close();
    out1.close();
    out2.close();
    out3.close();
    out4.close();
}