Oversized Pancake Flipper

// Solution for:
// https://code.google.com/codejam/contest/3264486/dashboard

#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <sstream>

const std::string INPUT_FILE_PATH  = "D:\\Downloads\\input.txt";
const std::string OUTPUT_FILE_PATH = "D:\\Downloads\\output.txt";


int main()
{
    unsigned short LineNumber = -1;

    std::ofstream OutputFile;
    std::ifstream InputFile;

    OutputFile.open( OUTPUT_FILE_PATH.c_str(), std::ios::trunc );
    InputFile.open ( INPUT_FILE_PATH.c_str() );


    std::string line;
    while( std::getline(InputFile, line) )
    {
        if( ++LineNumber == 0 ) continue; // increase the line number but skip the first one (due to it being the number of lines)


        std::cout << "Now doing line: " << LineNumber+1 << std::endl;

        std::string Pancakes = "";
        int SizeFlipper = 0;


        // Generate Pancakes & SizeFlipper variables
        std::string tmp_sizeflipper = "";

        for(unsigned int i=0; i<line.length(); ++i)
        {
            if(line[i]=='-' || line[i]=='+')
                Pancakes.push_back(line[i]);

            if(line[i]>='0' && line[i]<='9')
                tmp_sizeflipper.push_back(line[i]);
        }

        SizeFlipper = atoi( tmp_sizeflipper.c_str() );


        // Start flipping!
        int Flips = 0;

        for(unsigned int i=0; i<Pancakes.length()-SizeFlipper+1; ++i)
        {
            if( Pancakes[i]=='-' )
            {
                for(unsigned int t=0; t<SizeFlipper; ++t)
                {
                    Pancakes[i+t] = (Pancakes[i+t]=='-'?'+':'-');
                }

                Flips++;
            }
        }


        // Okay then let's generate the results!
        std::stringstream stream;
        stream << Flips;
        std::string Flips_Result = stream.str();

        for(unsigned int i=0; i<Pancakes.length(); ++i)
        {
            if(Pancakes[i]=='-')
            {
                Flips_Result = "IMPOSSIBLE";
                break;
            }
        }


        OutputFile << "Case #" << LineNumber << ": " << Flips_Result << std::endl;

    }


    OutputFile.close();
    InputFile.close();


    return 0;
}