Quotes in Tex (Tex quotes, UVa 272) _ Algorithm----water

In Tex, double quotation marks "'", the right double quotation mark is "" "(two return to the left). Enter an article that contains double quotes, and your task is to convert it into an Tex format.
sample input: "To Yes or not", "quoth the Bard," which is the question.
Sample output: ' To be ' or ' '
        quoth the Bard, ' It is the question '.

The following is code:

#include <iostream>
#include <stdio.h>

using namespace std;

int main ()
{
    int c, q = 1;
    while ((c = GetChar ())!= EOF)
    {
        if (c = = ' "')
        {
            printf ("%s ", Q?) ``" : "''");
            Q =!q;
        }
        else
        {
            Cout<<char (c);
        }
    }

    return 0;
}