제출 #1180

#제출 시각아이디문제언어결과실행 시간메모리
1180gs13068토마토 (3차원) (KOI13_tomato3D)C++98
20 / 20
180 ms20416 KiB
#include<cstdio>

int d[100][100][100];
int a[100][100][100];
int qx[1000000];
int qy[1000000];
int qz[1000000];
int qn;

int px[6]={1,-1,0,0,0,0};
int py[6]={0,0,1,-1,0,0};
int pz[6]={0,0,0,0,1,-1};

int main()
{
	int x,y,z,dest=0;
	int i,j,k,n,m,l;
	scanf("%d%d%d",&l,&m,&n);
	for(i=0;i<n;i++)for(j=0;j<m;j++)for(k=0;k<l;k++)scanf("%d",&a[i][j][k]);
	for(i=0;i<n;i++)for(j=0;j<m;j++)for(k=0;k<l;k++)
	{
		if(a[i][j][k]==1)
		{
			d[i][j][k]=1;
			qx[qn]=i;
			qy[qn]=j;
			qz[qn]=k;
			qn++;
		}
		if(a[i][j][k]>=0)
			dest++;
	}
	for(i=0;i<qn;i++)
	{
		x=qx[i];
		y=qy[i];
		z=qz[i];
		for(j=0;j<6;j++)
		{
			x+=px[j];
			y+=py[j];
			z+=pz[j];
			if(x>=0&&x<n&&y>=0&&y<m&&z>=0&&z<l&&a[x][y][z]==0&&!d[x][y][z])
			{
				d[x][y][z]=d[qx[i]][qy[i]][qz[i]]+1;
				qx[qn]=x;
				qy[qn]=y;
				qz[qn]=z;
				qn++;
			}
			x-=px[j];
			y-=py[j];
			z-=pz[j];
		}
	}
	if(qn<dest)puts("-1");
	else printf("%d",d[qx[qn-1]][qy[qn-1]][qz[qn-1]]-1);
}	
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