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Identify mines on edges

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This commit is contained in:
Camden Dixie O'Brien 2025-03-22 13:33:38 +00:00
parent c701669fc9
commit 7cdf4dcae6
1 changed files with 25 additions and 2 deletions
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27
main.c
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@ -13,6 +13,18 @@
enum { UNKNOWN = 0xfe, KILLER = 0xfd }; enum { UNKNOWN = 0xfe, KILLER = 0xfd };
static void setadj(puzz_t field, int x, int y, uint8_t from, uint8_t to)
{
for (int yp = y - 1; yp < y + 2; ++yp) {
for (int xp = x - 1; xp < x + 2; ++xp) {
if (xp < 0 || xp >= WIDTH || yp < 0 || yp >= HEIGHT
|| (xp == x && yp == y))
continue;
field[xp][yp] = field[xp][yp] == from ? to : field[xp][yp];
}
}
}
int main(void) int main(void)
{ {
struct timeval tv; struct timeval tv;
@ -28,11 +40,22 @@ int main(void)
puzz_t field; puzz_t field;
memset(field, UNKNOWN, sizeof(field)); memset(field, UNKNOWN, sizeof(field));
const int x = rand() % WIDTH; int x = rand() % WIDTH;
const int y = rand() % HEIGHT; int y = rand() % HEIGHT;
if (probe(x, y, field) == DEAD) { if (probe(x, y, field) == DEAD) {
field[x][y] = KILLER; field[x][y] = KILLER;
fprintf(stderr, "Dead\n"); fprintf(stderr, "Dead\n");
} else {
for (y = 0; y < HEIGHT; ++y) {
for (x = 0; x < WIDTH; ++x) {
if (field[x][y] == UNKNOWN || field[x][y] == MINE)
continue;
const int mines = countadj(field, x, y, MINE);
const int unknowns = countadj(field, x, y, UNKNOWN);
if (mines + unknowns == field[x][y])
setadj(field, x, y, UNKNOWN, MINE);
}
}
} }
putchar('\n'); putchar('\n');