删除vector重复元素

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#include<iostream>
#include<vector>
#include<algorithm>

using namespace std;
int main()
{
	vector<int> veci;
	for(int i=0;i<10;++i)
	 {
	 	veci.push_back(i);
	 	veci.push_back(i);
	 	veci.push_back(i+2);
	 }
	 
	vector<int>::iterator iter;
	vector<int>::iterator pos;
	cout<<"Original:";
	for(iter=veci.begin();iter!=veci.end();++iter)
	 cout<<*iter<<" ";
	 cout<<endl;
	
	cout<<"Sort:    ";
	sort(veci.begin(),veci.end());
	for(iter=veci.begin();iter!=veci.end();++iter)
	 	cout<<*iter<<" ";
	 	cout<<endl;
	
	cout<<"Unique:  ";
	pos=unique(veci.begin(),veci.end());
	for(iter=veci.begin();iter!=veci.end();++iter)
	 	cout<<*iter<<" ";
	 	cout<<endl;
	
	cout<<"Erase:   ";
	veci.erase(pos,veci.end());
	for(iter=veci.begin();iter!=veci.end();++iter)
	 	cout<<*iter<<" ";
}