Thread: I am lost on how to read from file and output to file?

Code:

I am not sure how to read from file.  For example, i have a file said
2
1 2
3
1 2 3

if i need to read the first number represent how many number and 2nd line show the number 1 and 2
when i read 3rd line it show there are 3 number so the 4th row show 1 2 3 is the 3 number how can i do it?
when i program it i program something like this but it doesn't work?  Instead it only show
2 number of interger
1 number of interger 2
3 number of interger
1 number of interger 2 3

how can i do it so that it will read first line and 3rd line (2 and 3) as an variable of number_of_interger.  And read 2nd and 4th line (1, 1, 2, and 3) as number?

Code:

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#include <fstream>
#include <conio.h>
#include <iostream>
#include <iomanip>

#define in_file "input.txt"
#define out_file "output.txt"
using namespace std;
void main()
{
ifstream ins;
ofstream outs;

//string scores;
char number_of_interger, number;

ins.open(in_file);
outs.open(out_file);

while (!ins.eof())
{
ins >> number_of_interger;
cout << number_of_interger << "number"
<< " of interger";
ins.get(card_scores);

while (number != '\n')
{
outs << number;
cout << number;
ins.get(number);
}
cout << number;
outs << number;
}
outs << number;
ins >> number_of_interger;
getch();
ins.close();
outs.close();
}