atac1.cpp: In function 'int main()': atac1.cpp:27: error: no matching function for call to 'std::vector<std::vector<long long int, std::allocator<long long int> >, std::allocator<std::vector<long long int, std::allocator<long long int> > > >::vector(int, std::vector<int, std::allocator<int> >)' /usr/include/c++/4.4/bits/stl_vector.h:241: note: candidates are: std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&) [with _Tp = std::vector<long long int, std::allocator<long long int> >, _Alloc = std::allocator<std::vector<long long int, std::allocator<long long int> > >] /usr/include/c++/4.4/bits/stl_vector.h:227: note: std::vector<_Tp, _Alloc>::vector(size_t, const _Tp&, const _Alloc&) [with _Tp = std::vector<long long int, std::allocator<long long int> >, _Alloc = std::allocator<std::vector<long long int, std::allocator<long long int> > >] /usr/include/c++/4.4/bits/stl_vector.h:215: note: std::vector<_Tp, _Alloc>::vector(const _Alloc&) [with _Tp = std::vector<long long int, std::allocator<long long int> >, _Alloc = std::allocator<std::vector<long long int, std::allocator<long long int> > >] /usr/include/c++/4.4/bits/stl_vector.h:207: note: std::vector<_Tp, _Alloc>::vector() [with _Tp = std::vector<long long int, std::allocator<long long int> >, _Alloc = std::allocator<std::vector<long long int, std::allocator<long long int> > >] atac1.cpp:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result atac1.cpp:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result