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copied!<p>The problem is that you're mixing the <code>>></code> operator with calls to <code>getline</code>. Generally, you want to use one or the other, but not both of them together.</p> <p>The reason you get an empty string in your vector is because <code>>></code> will NOT consume the whitespace which causes it to stop. That is, it reads the <code>"5"</code>, finds the newline character after it, and then stops, leaving the newline character in the <code>ifstream</code>.</p> <p>Then, the call to <code>getline</code> encounters the newline character and immediately says, "Done! I read a line!". It consumes the newline character and returns the entire string leading up to it -- which in this case was the empty string.</p> <p>If you know that your data will be formatted properly (no invalid input), it might be easiest just to use <code>>></code> to read the entire file. Otherwise, I would recommend using <code>getline</code> to read each line one at a time, then using a <code>stringstream</code> object to parse the data out of the line.</p> <p><strong>EDIT</strong></p> <p>I just noticed that the rest of your input has first/last names separated by spaces. Since <code>>></code> stops on spaces, it would probably be easiest to use <code>getline</code> to read the entire file. Example of reading the <code>5</code>:</p> <pre><code>string line; getline(fin, line); stringstream converter; converter << line; int n; converter >> n; </code></pre>

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