校赛题搬砖

 /*
 qq:1239198605
 ctgu_yyf
        */

#include
#include
#include
#include
#include
#include
#include
#include
#include
#define ll long long
using namespace std;
struct node
{
	int x,y,z;//长宽高 
}e[15000]; 

int dp[15000];
int ans;

bool cmp(node n1,node n2)
{
	if(n1.x==n2.x)
	{
		return n1.y>n2.y;
	}
	return n1.x>n2.x;
}

int main()
{
   ios::sync_with_stdio(false);
   int n,a,b,c;
   int o=0;
   while(cin>>n)
   {
   	ans=0;
   	int u=0;
   	if(n==0)
   	break;
   	
   	for(int i=1;i<=n;i++)
   	{
   		cin>>a>>b>>c;
   		e[u].x=a,e[u].y=b,e[u++].z=c;
        e[u].x=a,e[u].y=c,e[u++].z=b;
        e[u].x=b,e[u].y=a,e[u++].z=c;
        e[u].x=b,e[u].y=c,e[u++].z=a;
        e[u].x=c,e[u].y=a,e[u++].z=b;
        e[u].x=c,e[u].y=b,e[u++].z=a;   		
	}
	memset(dp,0,sizeof(dp));
   	sort(e,e+u,cmp);
   	for(int i=0;idp[i])
			dp[i]=1+dp[j];	
			
		}  	
   		ans=max(ans,dp[i]);
	}
   	cout<