I tried this code.. And it's working

int main()

{

vector<int> v;
int size;
cin>>size;
int a;
for(int i=0;i<size;i++)
{
 cin>>a;
 v.push_back(a);
}
sort(v.begin(),v.end());
 for(int i=0;i<size;i++)
    {
      cout<<v[i]<<" ";
    }
return 0;

}