Euler 18

#include <stdio.h>

#define TRISIZE 15

int triangle[TRISIZE][TRISIZE] = {
{75, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{95, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{17, 47, 82, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{18, 35, 87, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{20, 4, 82, 47, 65, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{19, 1, 23, 75, 3, 34, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{88, 2, 77, 73, 7, 63, 67, 0, 0, 0, 0, 0, 0, 0, 0},
{99, 65, 4, 28, 6, 16, 70, 92, 0, 0, 0, 0, 0, 0, 0},
{41, 41, 26, 56, 83, 40, 80, 70, 33, 0, 0, 0, 0, 0, 0},
{41, 48, 72, 33, 47, 32, 37, 16, 94, 29, 0, 0, 0, 0, 0},
{53, 71, 44, 65, 25, 43, 91, 52, 97, 51, 14, 0, 0, 0, 0},
{70, 11, 33, 28, 77, 73, 17, 78, 39, 68, 17, 57, 0, 0, 0},
{91, 71, 52, 38, 17, 14, 91, 43, 58, 50, 27, 29, 48, 0, 0},
{63, 66, 4, 68, 89, 53, 67, 30, 73, 16, 69, 87, 40, 31, 0},
{4, 62, 98, 27, 23, 9, 70, 98, 73, 93, 38, 53, 60, 4, 23},
};

inline int max (int a, int b)
{
    return (a > b) ? a : b;
}

int main (void)
{
    int i, j;

    for (i = TRISIZE - 2; i >= 0; i--)
        for (j = 0; j <= i; j++)
            triangle[i][j] += max (triangle[i + 1][j], triangle[i + 1][j + 1]);

    printf ("Done: %i\n", triangle[0][0]);
    return 0;
}