题目不难，但是离做对还有很大差距，勉励！

// Prob_1056.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

#include <iostream>
#include <vector>
using namespace std;

bool visit_end_array[2048];//<----用1026死的很惨


int main(void)
{
	char s[16];
	vector<bool> decodeablearray;
	
	bool decodeable = true;
	
	while(cin>>s)
	{
		if (s[0]=='9')
		{
			decodeablearray.push_back(decodeable);
			decodeable = true;
			memset(visit_end_array,0,sizeof(visit_end_array));
		}
		else
		{
			if(decodeable)
			{
				int index = 1;
				
				for (int i=0;s[i]!='\0';i++)
				{
					if (s[i]=='0')
					{
						index = index <<1;
					}
					else
					{
						index = (index<<1)+1;
					}
					
					if(visit_end_array[index])
					{
						decodeable = false;
						break;
					}
				}
				
				if (decodeable)
				{
					visit_end_array[index]=true;
				}		
			}	
		}
	}


	for (int j=0;j<decodeablearray.size();j++)
	{
		cout<<"Set "<<j+1<<" is ";//<--此处曾经忘记加1了
		if (!decodeablearray[j])
		{
			cout<<"not ";
		}
		cout <<"immediately decodable"<<endl;
	}

	return 0;
}