How do I concatenate lines from a text file into one big string?
<p>I have an input file that looks like(without such big spaces between lines):</p>

<p>3 4</p>

<p>ATCGA</p>

<p>GACTTACA</p>

<p>AACTGTA</p>

<p>ATC</p>

<p>...and I need to concatenate all lines except for the first "3 4" line.  Is there a simple solution? I've tried manipulating getline() somehow, but that has not worked for me.</p>

<p>Edit: The amount of lines will not be known initially, so it will have to be done recursively.</p>