Векторы II

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

int main()
{
	int n;
	cout << "n = "; cin >> n;

	vector <int> a;
	for (int i = 0; i < n; ++i)
	{
		int alpha; cin >> alpha;

		a.push_back(alpha);
	}

	for (int i = 0; i < a.size(); ++i)
	    if ( count(a.begin(), a.end(), a[i]) != 1)
	    {
	        vector <int> :: iterator idel = remove(a.begin() + i + 1, a.end(), a[i]);

	        a.erase(idel, a.end());
	    }

    for (int i = 0; i < a.size(); ++i)
        cout << a[i] << " ";

    return 0;
}