Algorithm+pair #2(struct)

#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>
#include <string>
int i=1;
using namespace std;


ifstream fin("input.txt");
ofstream fout("output.txt");

struct Student
{
        string name;
        int bookNumber;
        string fac;
        int number;
        int estimates[5];
public:
        void Read()
        {
                fin >> name >> bookNumber >> fac >> number;
                for (int i=0;i<5;i++)
                {
                        fin >> estimates[i];
                }
        }

        void Print()
        {
                fout << name << " " << bookNumber << " " << fac << " " << number << " ";
                for (int i=0;i<5;i++)
                {
                        fout << estimates[i] << " ";
                }
                fout << endl;
        }
};

bool cmp(Student stud)
{
        if (stud.estimates[0]==2 || stud.estimates[1]==2 || stud.estimates[2]==2 || stud.estimates[3]==2 || stud.estimates[4]==2) return true;
        else return false;
}

void func(Student stud)
{
    if (stud.estimates[0]==2 || stud.estimates[1]==2 || stud.estimates[2]==2 || stud.estimates[3]==2 || stud.estimates[4]==2)
        {
            fout << i <<" ";
        }
    i++;
}

int main()
{
        int n,count=0;
        fin >> n;

        vector <Student> stud(n);

        for (int i=0;i<n;i++)
        {
                stud[i].Read();
        }

        count=count_if(stud.begin(), stud.end(), cmp);

        fout << count << endl;

        for_each(stud.begin(), stud.end(), func);

        return 0;
}