Make an application that displays text at random that conforms to the specified regex

Question

OK, so in the spirit of Code-Golf, I\'m trying out something new here: Code-Bowling.

In golf, you try to get the lowest score (smallest application, mos

Answer 1

Here we are. I use recursion, express all my numbers in their factorized form, and only output one char at a time. Unfortunately, the random number generator is simple.

#include 
#include 

using namespace std;

void startPutCharSequence(double currChar, double prevChar, double firstChar)
{
    if (prevChar == 0)
    {
        putchar(currChar);

        if(currChar / 11 == 7)
            startPutCharSequence(3 * 37, currChar, currChar);
        else if (currChar / 23 == 3)
            startPutCharSequence(2 * 59, currChar, currChar);
        else if (currChar / 13 == 5)
            startPutCharSequence(2 * 3 * 17, currChar, currChar);
        else if (currChar / 13 == 2 * 3)
            startPutCharSequence(3 * 5 * 7, currChar, currChar);
    }
    else if (prevChar != 0 && currChar != 3)
    {
        putchar(currChar);

        if(currChar == 3 * 37 && prevChar == 7 * 11 && firstChar == 7 * 11)
            startPutCharSequence(2 * 3 * 19, currChar, firstChar);
        else if (currChar == 2 * 3 * 19 && prevChar == 3 * 37 && firstChar == 7 * 11)
            startPutCharSequence(2 * 5 * 11, currChar, firstChar);
        else if (currChar == 2 * 5 * 11 && prevChar == 2 * 3 * 19 && firstChar == 7 * 11)
            startPutCharSequence(3 * 5 * 7, currChar, firstChar);
        else if (currChar == 3 * 5 * 7 && prevChar == 2 * 5 * 11 && firstChar == 7 * 11)
            startPutCharSequence(2 * 5 * 11, currChar, firstChar);
        else if (currChar == 2 * 5 * 11 && prevChar == 3 * 5 * 7 && firstChar ==7 * 11)
            startPutCharSequence(103, 0 , 3);

        else if(currChar == 2 * 59 && prevChar == 23 * 3 && firstChar == 23 * 3)
            startPutCharSequence(101, currChar, firstChar);
        else if(currChar == 101 && prevChar == 2 * 59 && firstChar == 23 * 3)
            startPutCharSequence(2 * 5 * 11, currChar, firstChar);
        else if(currChar == 2 * 5 * 11 && prevChar == 101 && firstChar == 23 * 3)
            startPutCharSequence(3 * 5 * 7, currChar, firstChar);
        else if(currChar == 3 * 5 * 7 && prevChar == 2 * 5 * 11 && firstChar == 23 * 3)
            startPutCharSequence(2 * 5 * 11, currChar, firstChar);
        else if(currChar == 2 * 5 * 11 && prevChar == 3 * 5 * 7 && firstChar == 23 * 3)
            startPutCharSequence(103, 0, 3);

        else if(currChar == 2 * 3 * 17 && prevChar == 13 * 5 && firstChar == 13 * 5)
            startPutCharSequence(2 * 2 * 29, currChar, firstChar);
        else if(currChar == 2 * 2 * 29 && prevChar == 2 * 3 * 17 && firstChar == 13 * 5)
            startPutCharSequence(101, currChar, firstChar);
        else if(currChar == 101 && prevChar == 2 * 2 * 29 && firstChar == 13 * 5)
            startPutCharSequence(2 * 3 * 19, currChar, firstChar);
        else if(currChar == 2 * 3 * 19 && prevChar == 101 && firstChar == 13 * 5)
            startPutCharSequence(2 * 5 * 11, currChar, firstChar);
        else if(currChar == 2 * 5 * 11 && prevChar == 2 * 3 * 19 && firstChar == 13 * 5)
            startPutCharSequence(3 * 37, currChar, firstChar);
        else if(currChar == 3 * 37 && prevChar == 2 * 5 * 11 && firstChar == 13 * 5)
            startPutCharSequence(3 * 37, currChar, firstChar);
        else if(currChar == 3 * 37 && prevChar == 3 * 37 && firstChar == 13 * 5)
            startPutCharSequence(2 * 5 * 11, 0, 3);

        else if(currChar == 3 * 5 * 7 && prevChar == 2 * 3 * 13 && firstChar == 2 * 3 * 13)
            startPutCharSequence(103, currChar, firstChar);
        else if(currChar == 103 && prevChar == 3 * 5 * 7 && firstChar == 2 * 3 * 13)
            startPutCharSequence(2 * 2 * 2 * 13, currChar, firstChar);
        else if(currChar == 2 * 2 * 2 * 13 && prevChar == 103 && firstChar == 2 * 3 * 13)
            startPutCharSequence(2 * 2 * 29, 0, 3);
    }
}

int main()
{
    int start = 2 * 2 * 2 * 3 * 3;

    putchar(--start);
    putchar((start += (2 * 2 * 2 * 5)));
    putchar(start);
    putchar((start -= 11));
    putchar((start -= 2 * 2 * 17));

    srand((unsigned)time(0));

    while(true)
    {
        int timeOfDay = rand() % 128;

        if (timeOfDay == 11 * 7 || timeOfDay == 13 * 5 || timeOfDay == 3 * 23 || timeOfDay == 2 * 3 * 13)
        {
            startPutCharSequence(timeOfDay, 0, timeOfDay);
            break;
        }
    }

    putchar((start -= 19));
    putchar((start -= 3));

    return 0;
}