POJ 3916 Duplicate Removal G++

#include <iostream>#include <vector>using namespace std;int main(){vector<int> jg;while(1){int NUM;cin>>NUM;if(NUM==0){break;}for(int i=0;i<NUM;i++){int t;cin>>t;jg.push_back(t);}jg.push_back(-1);}for(int i=0;i<jg.size();i++){if((jg[i]!=-1)&&(jg[i]!=jg[i+1])){cout<<jg[i]<<" ";}if(jg[i]==-1){cout<<"$"<<endl;}}return 0;}