学步园

折腾的好忧郁...大神用的指针就是那么随意...简直学习了（到底在说什么。。神志不清卖下萌好了TUT）

参考：http://blog.csdn.net/lyy289065406/article/details/6647986

#include<stdio.h>
#include<iostream>
#include<string.h>
using namespace std;

int vis[30];

typedef class{
	public:
		int nt[30];
		int num;
}p;

int main()
{
	int n;
	while(~scanf("%d%*c", &n) && n)
	{
		p *px = new p[n+1];
		for(int i = 1; i <= n; i++)
		{
			px[i].num = 0;
			scanf("%*c%*c");
			char c;
			int jj;
			while( (c = getchar()) != '\n' )
			{
				jj = c % ('A' - 1);
				px[i].nt[px[i].num++] = jj;
			}
		}
		int v[30] = { 0	};
		v[1] = 1;
		int ans = 1;
		for(int i = 1; i <= n; i++)
		{
			memset(vis, 0, sizeof(vis));
			v[i] = n+1;
			for(int j = 0; j < px[i].num; j++)
			{
				int x = px[i].nt[j];
				if(v[x])
					vis[v[x]] = 1;
			}
			for(int j = 1; i <= n; j++)  //从最小的颜色开始，枚举每种颜色，最终确定结点i的染色  
   			if(!vis[j] && v[i] > j)  
   			{  
               	v[i]=j;  
       	      	break;  
   			}  
   			if(ans < v[i])
  				ans = v[i];	
		}
		if (ans == 1)
  			printf("1 channel needed.\n");
     	else
      		printf("%d channels needed.\n", ans);
		delete px;
	}
	return 0;
}