#include<iostream.h>
#include<string.h>
int main()
{
	char a[20];
	int r=0,n=0;
	while(cin>>a)
	{
		char b[20][20];
		if(strcmp(a,"9")!=0)strcpy(b[n++],a);
		else 
		{
		   int i,j,k,s=0;
		   r++;
		   for(i=0;i<n-1;i++)
		   {
			  int c=strlen(b[i]);
			  for(j=0;j<n-1;j++)
			  {
				if(j!=i)
				{
				   for(k=0;k<c;k++)
				   {
					if(b[j][k]==b[i][k])continue;
					else break;
				   }
			 	   if(k==c)s++;
				}
			  }
		   }
		    if(s==0)cout<<"Set "<<r<<" is immediately decodable"<<endl;
		        else cout<<"Set "<<r<<" is not immediately decodable"<<endl;
		   n=0;
		}
	}
	return 1;
}

• 测试数据正确的话你就不会WA了 (721) hust07p43 2007-08-23 16:08:32