http://icpc.upc.edu.cn/problem.php?cid=1674&pid=3
#include <cstdio>
using namespace std;
int m,n,i,j,k,a[1001][1001],ma[1001],xx,yy,z[6]={2,1,0,0,0,0},s[6]={6,6,6,6,5,4};
char c[1001][1001],c1[10][10]={
" +---+",
" / /|",
"+---+ |",
"| | +",
"| |/",
"+---+",
};
void f(int x,int y){
for(int i=5;i>=0;i--)
for(int j=z[i];j<=s[i];j++){
c[5-i+x][j+y]=c1[i][j];
if(5-i+x>xx) xx=5-i+x;
if(j+y>yy) yy=j+y;
}
}
int main(){
scanf("%d%d",&n,&m);
for(i=1;i<=n;i++)
for(j=0;j<m;j++)
scanf("%d",&a[i][j]);
for(i=1;i<=n;i++)
for(j=0;j<m;j++)
for(k=0;k<a[i][j];k++)
f((n-i)*2+1+3*k,(n-i)*2+1+4*j);
for(i=xx;i>=1;i--){
for(j=1;j<=yy;j++)
if(c[i][j]=='\000') printf(".");
else printf("%c",c[i][j]);
printf("\n");
}
}