L1-030 一帮一

#include
using namespace std;
int main()
{
    vector > stu;
    string s;
    int n,t;
    cin>>n;
    for(int i = 0; i >t;
        cin>>s;
        stu.push_back(make_pair(t,s));
    }
    int vis[n];
    memset(vis,0,sizeof(vis));
    for(int i=0; i=n/2; j--){
            if(stu[i].first ^ stu[j].first && !vis[j]){
                cout<<" "<