// flc.c -- funny-looking constants
#include <stdio.h>
#define COLS 4

int sum2d(int ar[][COLS], int rows);
int sum(int ar[], int n);

int main(void)
{
	int total1, total2, total3;
	int * pt1;
	int (*pt2)[COLS];
	
	pt1 = (int [2]) {10, 20};
	pt2 = (int [2][COLS]) { {1, 2, 3, -9}, {4, 5, 6, -8}};

	total1 = sum(pt1, 2);
	total2 = sum2d(pt2, 2);
	total3 = sum((int []){4, 4, 4, 5, 5, 5}, 6);
	printf("total1 = %d\n", total1);
	printf("total2 = %d\n", total2);
	printf("total3 = %d\n", total3);
	
	return 0;
}

int sum(int ar[], int n)
{
	int i;
	int total = 0;
	
	for (i = 0; i < n; i++)
		total += ar[i];
	
	return total;
}

int sum2d(int ar[][COLS], int rows)
{
	int r;
	int c;
	int tot = 0;
	
	for (r = 0; r < rows; r++)
		for (c = 0; c < COLS; c++)
			tot += ar[r][c];
	
	return tot;
}