STL练习程序（去除相同元素）

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int testscore[] = {67, 56, 24, 78, 99, 87, 56}; 

void main()
{
    vector<int> score(testscore,testscore+sizeof(testscore)/sizeof(int));
    vector<int>::iterator it;

    copy(score.begin(),score.end(),ostream_iterator<int>(cout,""));
    cout<<endl;

    sort(score.begin(),score.end());

    copy(score.begin(),score.end(),ostream_iterator<int>(cout,""));    
    cout<<endl;

    it=unique(score.begin(),score.end());
    copy(score.begin(),it,ostream_iterator<int>(cout,""));

}