OJ-Problems-Source/HDOJ/4160_autoAC.cpp
2016-09-04 14:28:52 +08:00

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;
}