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It works! Thanks a lot!

Yes, i understand it, i also tried using operator [] but it's a vector<>*, so i cannot call operator [], then i get CE too:
class vector<int,allocator<int> >' used where a `int' was expected
There's some way i can use that operator in a pointer type?
(Sorry, but i'm quite new in C++...)

Thanks ...

Hi, I have submited a solution which uses the function vector::at(int) and i got CE...

What am i doing wrong? this simple code causes a Compile Error:
#include <vector>

int main(){
vector<int>* vc = new vector<int>();
return vc->at(0);
}

no matching function for call to `vector<int,allocator ...