#include <iostream.h>

int main()
{
	int i,n;
	int t;
	bool find;
	int p[101];
	while (1)
	{
		cin>>n;
		if (n==0)
			break;
		if (n%2==1)
		{
				cout<<"1"<<endl;
		}
		else
		{
			for (i=0;i<=100;i++)
				p[i]=0;
			find = 0;
			for (i=1;i<=n;i++)
			{
				cin>>t;
				p[t]++;
			}
			for (i=1;i<=100;i++)
			{
				if (p[i]%2==1)
					find=1;
			}
			if (find)
				cout<<"1"<<endl;
			else
				cout<<"0"<<endl;
		}

	}
	return 0;
}

• OTL 我倒是知道，相当于 orz。 (0) ImLazy 2008-07-11 13:29:17