Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:58:9: error: no match for ‘operator>>’ (operand types are ‘InputReader’ and ‘int’) fin >> Q; ^ user.cpp:58:9: note: candidates are: user.cpp:18:29: note: InputReader& InputReader::operator>>(long long int&) inline InputReader &operator >>(long long &n) { ^ user.cpp:18:29: note: no known conversion for argument 1 from ‘int’ to ‘long long int&’ In file included from /usr/include/c++/4.8/string:53:0, from /usr/include/c++/4.8/stdexcept:39, from /usr/include/c++/4.8/array:38, from /usr/include/c++/4.8/tuple:39, from /usr/include/c++/4.8/unordered_set:41, from user.cpp:2: /usr/include/c++/4.8/bits/basic_string.tcc:996:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::basic_string<_CharT, _Traits, _Alloc>&) operator>>(basic_istream<_CharT, _Traits>& __in, ^ /usr/include/c++/4.8/bits/basic_string.tcc:996:5: note: template argument deduction/substitution failed: user.cpp:58:12: note: ‘InputReader’ is not derived from ‘std::basic_istream<_CharT, _Traits>’ fin >> Q; ^ user.cpp:70:24: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%lld\n", nr); ^ user.cpp:47:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dtcsu.out","w", stdout); ^ user.cpp: In constructor ‘InputReader::InputReader(const char*)’: user.cpp:16:47: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^ user.cpp: In member function ‘void InputReader::advance()’: user.cpp:38:51: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^