Submission #795907

#	Time	Username	Problem	Language	Result	Execution time	Memory
795907		rainboy	토마토 (3차원) (KOI13_tomato3D)	C11	20 / 20	93 ms	13692 KiB

cc

#include <stdio.h>

#define N1	100
#define N2	100
#define N3	100

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

int main() {
	static int aa[N1][N2][N3], dd[N1][N2][N3], qu[N1 * N2 * N3];
	int n1, n2, n3, cnt, h, i1, i2, i3, u, d, d_;

	scanf("%d%d%d", &n3, &n2, &n1);
	for (i1 = 0; i1 < n1; i1++)
		for (i2 = 0; i2 < n2; i2++)
			for (i3 = 0; i3 < n3; i3++)
				scanf("%d", &aa[i1][i2][i3]);
	cnt = 0;
	for (i1 = 0; i1 < n1; i1++)
		for (i2 = 0; i2 < n2; i2++)
			for (i3 = 0; i3 < n3; i3++)
				if (aa[i1][i2][i3] == 1)
					dd[i1][i2][i3] = 0, qu[cnt++] = (i1 * n2 + i2) * n3 + i3;
				else
					dd[i1][i2][i3] = n1 * n2 * n3;
	for (h = 0; h < cnt; h++) {
		u = qu[h], i1 = u / n3 / n2, i2 = u / n3 % n2, i3 = u % n3, d = dd[i1][i2][i3] + 1;
		if (i1 > 0 && aa[i1 - 1][i2][i3] != -1 && dd[i1 - 1][i2][i3] > d)
			dd[i1 - 1][i2][i3] = d, qu[cnt++] = ((i1 - 1) * n2 + i2) * n3 + i3;
		if (i1 + 1 < n1 && aa[i1 + 1][i2][i3] != -1 && dd[i1 + 1][i2][i3] > d)
			dd[i1 + 1][i2][i3] = d, qu[cnt++] = ((i1 + 1) * n2 + i2) * n3 + i3;
		if (i2 > 0 && aa[i1][i2 - 1][i3] != -1 && dd[i1][i2 - 1][i3] > d)
			dd[i1][i2 - 1][i3] = d, qu[cnt++] = (i1 * n2 + (i2 - 1)) * n3 + i3;
		if (i2 + 1 < n2 && aa[i1][i2 + 1][i3] != -1 && dd[i1][i2 + 1][i3] > d)
			dd[i1][i2 + 1][i3] = d, qu[cnt++] = (i1 * n2 + (i2 + 1)) * n3 + i3;
		if (i3 > 0 && aa[i1][i2][i3 - 1] != -1 && dd[i1][i2][i3 - 1] > d)
			dd[i1][i2][i3 - 1] = d, qu[cnt++] = (i1 * n2 + i2) * n3 + (i3 - 1);
		if (i3 + 1 < n3 && aa[i1][i2][i3 + 1] != -1 && dd[i1][i2][i3 + 1] > d)
			dd[i1][i2][i3 + 1] = d, qu[cnt++] = (i1 * n2 + i2) * n3 + (i3 + 1);
	}
	d_ = 0;
	for (i1 = 0; i1 < n1; i1++)
		for (i2 = 0; i2 < n2; i2++)
			for (i3 = 0; i3 < n3; i3++)
				if (aa[i1][i2][i3] == 0)
					d_ = max(d_, dd[i1][i2][i3]);
	printf("%d\n", d_ == n1 * n2 * n3 ? -1 : d_);
	return 0;
}

Compilation message (stderr)

cc.c: In function 'main':
cc.c:13:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  scanf("%d%d%d", &n3, &n2, &n1);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc.c:17:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |     scanf("%d", &aa[i1][i2][i3]);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 2 / 2
• Subtask 3: 2 / 2
• Subtask 4: 2 / 2
• Subtask 5: 2 / 2
• Subtask 6: 2 / 2
• Subtask 7: 2 / 2
• Subtask 8: 2 / 2
• Subtask 9: 2 / 2
• Subtask 10: 2 / 2