#include <fstream>
#include <iostream>
#include <string>
#include <vector>

std::string readline( std::ifstream & fin )
{
    std::string ret;
    std::getline ( fin, ret );
    return ret;
}

std::string fix ( std::string line )
{
    std::string ret;
    for ( unsigned i=0; i<line.length(); ++i )
    {
        if( line!=' ' )
        {
            for ( unsigned j=i; j< line.length(); ++j )
            {
                if ( line[j]==' ' )
                    break;
                ret += line[j];
            }
        }
    }
    return ret;
}

int main()
{
    std::string filename_in, filename_out;
    std::string line;
    
    std::cout << "Enter filename to fix: ";
    std::getline ( std::cin, filename_in );
    std::cout << "Enter filename for output: ";
    std::getline ( std::cin, filename_out );
    if ( filename_in == filename_out )
    {
        std::cout << "Can't use the same file!  Abort.\n";
        std::cin.get();
        return 1;
    }
    std::ifstream fin ( filename_in.c_str(), std::ifstream::in );
    if (!fin)
    {
        std::cout << "Could not open " << filename_in << " for reading!\n";
        std::cin.get();
        return 1;
    }
    std::ofstream fout ( filename_out.c_str(), std::ifstream::out );
    if (!fout )
    {
        if (fin)
            fin.close();
        std::cout << "Could not open " << filename_out << " for writing!\n";
        std::cin.get();
        return 1;
    }
    std::cout << "Files opened successfully\n";
    while ( !fin.eof() );
    {
        line = fix ( readline ( fin ) );
        std::cout << line << '\n';
        fout << line << "\r\n";
    }
    fout.close();
    fin.close();
    std::cout << "Operation successful.\n";
    std::cin.get();
    return 0;
}