// generates answers for Quiz Wiz carts
//

#include "string.h"
#include "stdio.h"

int main()
{
	//the cart wiring; every pin connects to pin 4 (high) or pin 5 (low)
	int cart[9];	//8 pins, but make it 1-indexed
	cart[4] = 1;	//4 is tied high
	cart[5] = 0;	//5 is grounded

	//the following cart[] assignments are all that need to be changed for new carts
#if 1
	//cart 1 (also QW Challenger cart C)
	//1+2+3+4, 5+6+7+8
	cart[1] = cart[4];
	cart[2] = cart[4];
	cart[3] = cart[4];
	cart[6] = cart[5];
	cart[7] = cart[5];
	cart[8] = cart[5];
#endif
#if 0
	//cart 3
	//2+3+4+8, 1+5+6+7
	cart[1] = cart[5];
	cart[2] = cart[4];
	cart[3] = cart[4];
	cart[6] = cart[5];
	cart[7] = cart[5];
	cart[8] = cart[4];
#endif
#if 0
	//carts 4 and 10
	//1+2+3+4+8, 5+6+7
	cart[1] = cart[4];
	cart[2] = cart[4];
	cart[3] = cart[4];
	cart[6] = cart[5];
	cart[7] = cart[5];
	cart[8] = cart[4];
#endif
#if 0
	//cart 5
	//2+3+4+7+8, 1+5+6
	cart[1] = cart[5];
	cart[2] = cart[4];
	cart[3] = cart[4];
	cart[6] = cart[5];
	cart[7] = cart[4];
	cart[8] = cart[4];
#endif
#if 0
	//cart 6
	//3+5+8, 1+2+4+6+7
	cart[1] = cart[4];
	cart[2] = cart[4];
	cart[3] = cart[5];
	cart[6] = cart[4];
	cart[7] = cart[4];
	cart[8] = cart[5];
#endif

	int buttons[10];	//0-9
	buttons[0] = 0;
	buttons[6] = 1;
	//how the cart is wired to the buttons
	buttons[4] = cart[5];
	buttons[5] = cart[4];
	buttons[1] = cart[1];
	buttons[2] = cart[6];
	buttons[3] = cart[2];
	buttons[7] = cart[3];
	buttons[8] = cart[7];
	buttons[9] = cart[8];

	char digits[33];
	for (int question = 1; question <= 1001; question++)
	{
		int numdigs = sprintf(digits, "%d", question);

		int latch1 = 0;
		int latch2 = 0;
		int latch3 = 0;
		int latch4 = 0;

		//process each button press
		for (int digitpos = 0; digitpos < numdigs; digitpos++)
		{
			char curdigit = digits[digitpos];

			//how the buttons are connected to the latches
			if (curdigit == '1' || curdigit == '5' || curdigit == '8')
				latch1 = buttons[curdigit - '0'];
			else if (curdigit == '3' || curdigit == '0')
				latch2 = buttons[curdigit - '0'];
			else if (curdigit == '7' || curdigit == '4')
				latch3 = buttons[curdigit - '0'];
			else if (curdigit == '2' || curdigit == '6' || curdigit == '9')
				latch4 = buttons[curdigit - '0'];
		}

		int answer1, answer2;
		if (latch1 == latch2)
			answer1 = 0;
		else
			answer1 = 1;
		if (latch3 == latch4)
			answer2 = 0;
		else
			answer2 = 1;

		char answer;
		if ((answer1 == 0) && (answer2 == 0))
			answer = 'D';
		else if ((answer1 == 0) && (answer2 == 1))
			answer = 'C';
		else if ((answer1 == 1) && (answer2 == 0))
			answer = 'B';
		else if ((answer1 == 1) && (answer2 == 1))
			answer = 'A';

		printf("%d: %c\n", question, answer);
	}

	return 0;
}