checking dublicates

#include "stdafx.h"
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
#include <sstream>
using namespace std;

int main()
{
    int num = 0, index = 0, found, number, no = 0, position;
    string row, line, temp;
    vector<int> v;
    ifstream used_frames("E:\\ZDaemon\\wads\\dehsupp_zd110b1\\ZeroDev_dehsupp\\My_frames\\used_frames.txt");
    //ofstream outfile("E:\\ZDaemon\\wads\\dehsupp_zd110b1\\ZeroDev_dehsupp\\My_frames\\test1.txt");

    if (used_frames.is_open())
    {
        cout << "File is found!" << endl << endl;

        while (!used_frames.fail())//(used_frames.getline(line, 16))
        {
            getline(used_frames, row);
            cout << row << endl;
            cout << used_frames.tellg() << endl << endl;
            //cout << used_frames.get() << endl << endl;
            num++;
        }
        cout << "Lines: " << num << endl << endl;
        used_frames.clear();
        used_frames.seekg(0, used_frames.beg);

        string str2("Frame ");
        cout << "\"" << str2 << "\" length: " << str2.length() << "\n" << endl;
        for (int j = 0; j < num; j++)
        {
            getline(used_frames, line); position = used_frames.tellg();
            if(!(line.substr(0, 6) == str2 && stringstream(line.substr(6, line.length()-6)) >> number && number > 966 && number < 5088 && line.length() <= 10))
            {
                //cout << line << endl;
            }
            else
            {
                no = 0;
                for (int k = j; k < num; k++)
                {
                    getline(used_frames, temp);
                    if (temp.compare(line) == 0) no++;
                }
                if(no > 0) cout << line << " has " << no + 1 << " dublicates" << endl;
                used_frames.clear();
                used_frames.seekg(position, used_frames.beg);
            }

        }
        used_frames.close();
    }
    else cout << "File is NOT found!" << endl << endl;

    return 0;
}