Reversing words

[generic2709]

This is a google code jam question. The input consist of
1st line:integer tells you how many cases
then the number of lines of text separated by space.

ex:
3
this is a sentence
this one too
and this one too

aim is to display it like this

case #1: sentence a is this
case #2: too one this
case #3: too one this and

Here is my code. A very simple error
it does this
case #1:
case #2: sentence a is this
case #3: too one this


Help will be appreciated.

#include<iostream>
#include<sstream>
#include<fstream>
#include<vector>
#include<algorithm>
using namespace std;

int main(int argc, char * argv[])
{
	ifstream infile(argv[1]);

	string data;
    int number;

    while(infile >> number)
	{
	    int num = 1;
	    while(getline(infile, data, '\n') && (num <= number) )
        {
            cout << "case" << num <<":";
            vector<string> lineInfo;
            string token;
            stringstream ss(data);

            while(getline(ss, token, ' '))
            {
                lineInfo.push_back(token);

            }

            reverse(lineInfo.begin(), lineInfo.end());
            for(auto it = lineInfo.begin(); it != lineInfo.end(); ++it )
            {
                cout << *it << " ";
            }
            num++;
            cout << "\n";
        }
	}
        system("pause");
        return 0;

}

[Smac89]

before line 17, do this:

#include <limits>
...
infile.ignore(std::numeric_limits<std::streamsize>::max(), '\n');

EDIT:
The reason you do this is because the >> operator does not extract space characters from the input stream. So after you use the >> operator to read in number, the '\n' character is not extracted. Then when you try to use getline ( which is supposed to read until it encounters a new line character), getline will stop reading immediately because it has read a line delimiter and thus read an empty string. So your first case will print an empty string

[generic2709]

Thanks smac89. Very intuitive. Works fine. Cheers!!