#include <iostream>
#include <vector>

using namespace std;

int main()
{
	int nNumber;
	cin>>nNumber;
	while(nNumber != 0)
	{
		vector<int> vNumber(nNumber, 0);
		for (int i = 0; i < nNumber; i++)
		{
			cin>>vNumber[i];
		}
		for (int i = 0; i < nNumber; i++)
		{
			if (i == 0)
			{
				cout<<vNumber[i]<<" ";
			}
			else
			{
				if (vNumber[i] != vNumber[i - 1])
				{
					cout<<vNumber[i]<<" ";
				}
			}
		}
		cout<<"$"<<endl;
		cin>>nNumber;
	}
	return 0;
}

• 请用G++ (574) MONDAY41 2011-08-25 18:54:42