write a line at the top of a reversed data file with C++

[meahmed]

Dears, I have written the following code to reverse a data file with deleting 15 lines from the top and the bottom. My question is: after reversing, how to write a certain line at the top of the reversed file, say" The reversed file is:"

Thanks in advance.

[code]
Put the code you need help with here.
#include <stdio.h>
#include <stdlib.h>
#include <fstream>
#include <iostream>
#include <string>
#include <stack>
#include"stdafx.h"
using namespace std;
int main () {
string s;
ifstream in;
in.open("input.txt");

ofstream outfile;
outfile.open("out.txt");

stack<string> lines;
string temp;
while(getline(in, temp))

lines.push(temp);
while(!lines.empty())
{

for(size_t i = 0; i < 17; ++i) {

lines.pop();

}

while(lines.size() > 17) {
outfile << lines.top() << endl,
lines.pop();
}

}

in.close();
outfile.close();

return 0;
}

[ephraimr]

Please complete the code tag with a [/code]

[Chervil]

after reversing, how to write a certain line at the top of the reversed file

Change the sequence of events so that line gets written to the file before, not after. Do that first, not last.