fixed 1

#include <iostream>
#include <fstream>
#include <string>
#include <vector>

using namespace std;

struct Unit {
    string Name;
    string FIO;
    int amountOfEmployes;
    int amountOfFreeEmployes;
};

int read() {
    ifstream fin, fin_bin;
    string path1 = "test.dat",
        path = "test.txt";
    fin.open(path);
    if (!fin) {
        cout << "Error open file!";
    }
    else {
        cout << "file open!\n";
        char ch;
        while (fin.get(ch)) {
            cout << ch;
        }
    }
    fin.close();

    fin_bin.open(path1, ios::binary);
    if (!fin_bin) {
        cout << "Error open binary file!\n";
    }
    else {
        cout << "Sucessful open binary file!\n";
        fin_bin.seekg(0);
        char ch = 0;
        int n = 0;
        fin_bin.read((char*)&n, sizeof(int));

        for (int i = 0; i < n; i++) {
            string str;
            int number;
            getline(fin_bin, str);
            std::cout << "Name of Unit: " << str << endl;
            getline(fin_bin, str);
            std::cout << "FIO of Chief: " << str << endl;
            fin_bin.read((char*)&number, sizeof(int));
            std::cout << "Number of emoployers: " << number << endl;
            fin_bin.read((char*)&number, sizeof(int));
            std::cout << "Number of free employers: " << number << endl;
            cout << "-------------------------------------\n";
        }
        fin_bin.close();
    }
    system("pause");
    return 0;
}

int write() {
    int n;
    ofstream fin, fin_bin;
    string path1 = "test.dat",
        path = "test.txt";
    vector<Unit> array;

    cout << "Enter number of Units: "; cin >> n;
    cin.ignore();
    array.resize(n);
    for (int i = 0; i < n; i++) {
        cout << "Enter information about about " << i+1 << " Unit:\n";
        cout << "Name: "; getline(cin, array[i].Name);
        cout << "FIO: "; getline(cin, array[i].FIO);
        cout << "Amount of employes: "; cin >> array[i].amountOfEmployes;
        cout << "Amount of free employes: "; cin >> array[i].amountOfFreeEmployes;
        cin.ignore();
        cout << endl;
    }

    fin.open(path);
    if (!fin) {
        cout << "Error open file!";
    }
    else {
        cout << "file open!\n";
        for (int i = 0; i < n; i++) {
            fin << array[i].Name << endl;
            fin << array[i].FIO << endl;
            fin << array[i].amountOfEmployes << endl;
            fin << array[i].amountOfFreeEmployes << endl;
        }

    }
    fin.close();

    fin_bin.open(path1, ios::binary);
    if (!fin_bin) {
        cout << "Error open binary file!\n";
    }
    else {
        cout << "Sucessful open binary file!\n";
        fin_bin.write((char *)&n, sizeof(int));

        for (int i = 0; i < n; i++) {
            fin_bin << array[i].Name << endl;
            fin_bin << array[i].FIO << endl;
            fin_bin.write((char*)&array[i].amountOfEmployes, sizeof(int));
            fin_bin.write((char*)&array[i].amountOfFreeEmployes, sizeof(int));
        }
        fin_bin.close();
    }
    system("pause");
    return 0;
}

int main() {
    char mode;
    cout << "r/w: " << endl;
    cin >> mode;
    if (mode == 'r') {
        return read();
    }
    return write();
}