// INCLUDES
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

// DEFINES
#define LOWER_DIE 1 // LOWER_DIE must be at least 1
#define UPPER_DIE 10
#define TRIALS 10000

// PROTOTYPES
int genRand(int , int);
int getTwoDieSum(int, int);

// MAIN
int main() {
	int numberArray[2 * UPPER_DIE + 1]; // holds frequency of rolls
	int dieTotal = 0;
	int Die1, Die2 = 0;

// initialize numberArray
	int i = 0;
	for(int i = 0; i <= TRIALS; i++)
		numberArray[i] = 0;



// seed the random number generator
	 srand((unsigned int)time(NULL));


// roll the dice and keep track of what was rolled in the array
	for (i = 0; i <= TRIALS; i++){
		Die1 = genRand(LOWER_DIE, UPPER_DIE);
		Die2 = genRand(LOWER_DIE, UPPER_DIE);
		dieTotal = getTwoDieSum (Die1, Die2);
		numberArray[dieTotal]++;
	}

// display results
	i = 0;
	printf("After rolling the dice 10000 times, here are the results: /n");
	printf("\n");
	printf("ROLL VALUE | FREQUENCY");
	for (i = 0; i <= 10; i++)
		printf("%d | %d", i + 2, numberArray[i]);

return 0;

}



// FUNCTION IMPLEMENTATIONS

int genRand(int lower, int upper) {
	int range = (upper - lower) + 1;
	return rand() % range + lower;
}

int getTwoDieSum(int roll1, int roll2) {
	int result = roll1 + roll2;
	return result;
}