55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#define max 510
|
|
struct d
|
|
{
|
|
int w,l,h;
|
|
}doll[max];
|
|
int match[max][max];
|
|
int link[max];
|
|
bool used[max];
|
|
int n;
|
|
bool dfs(int u)
|
|
{
|
|
for(int v=1;v<=n;v++)
|
|
if(match[u][v]==1&&!used[v])
|
|
{
|
|
used[v]=true;
|
|
if(link[v]==-1||dfs(link[v]))
|
|
{
|
|
link[v]=u;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
int Xiong()
|
|
{
|
|
int res=0;
|
|
memset(link,-1,sizeof(link));
|
|
for(int i=1;i<=n;i++)
|
|
{
|
|
memset(used,false,sizeof(used));
|
|
if(dfs(i))
|
|
res++;
|
|
}
|
|
return res;
|
|
}
|
|
int main()
|
|
{
|
|
int i,j;
|
|
while(scanf("%d",&n)==1&&n)
|
|
{
|
|
for(i=1;i<=n;i++)
|
|
scanf("%d%d%d",&doll[i].w,&doll[i].l,&doll[i].h);
|
|
memset(match,0,sizeof(match));
|
|
for(i=1;i<=n;i++)
|
|
for(j=1;j<=n;j++)
|
|
if(doll[i].w>doll[j].w&&doll[i].l>doll[j].l&&doll[i].h>doll[j].h)
|
|
match[i][j]=1;
|
|
printf("%d\n",n-Xiong());
|
|
}
|
|
return 0;
|
|
}
|