Borderou de evaluare (job #697868)

Eroare de compilare: main.cpp: In function 'int main()': main.cpp:9:7: error: no match for 'operator>>' (operand types are 'std::ofstream' {aka 'std::basic_ofstream<char>'} and 'int') 9 | fin >> n; | ~~~ ^~ ~ | | | | | int | std::ofstream {aka std::basic_ofstream<char>} main.cpp:9:7: note: candidate: 'operator>>(int, int)' (built-in) 9 | fin >> n; | ~~~~^~~~ main.cpp:9:7: note: no known conversion for argument 1 from 'std::ofstream' {aka 'std::basic_ofstream<char>'} to 'int' In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/string:56, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/locale_classes.h:40, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/ios_base.h:41, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/ios:42, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/ostream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:39, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/basic_string.tcc:1485:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)' 1485 | operator>>(basic_istream<_CharT, _Traits>& __in, | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/basic_string.tcc:1485:5: note: template argument deduction/substitution failed: main.cpp:9:10: note: 'std::ofstream' {aka 'std::basic_ofstream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>' 9 | fin >> n; | ^ In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:1016, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:40, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/istream.tcc:958:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)' 958 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/istream.tcc:958:5: note: template argument deduction/substitution failed: main.cpp:9:10: note: 'std::ofstream' {aka 'std::basic_ofstream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>' 9 | fin >> n; | ^ In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:40, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:756:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)' 756 | operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:756:5: note: template argument deduction/substitution failed: main.cpp:9:10: note: 'std::ofstream' {aka 'std::basic_ofstream<char>'} is not derived from 'std::basic_istream<char, _Traits>' 9 | fin >> n; | ^ In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:40, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:761:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)' 761 | operator>>(basic_istream<char, _Traits>& __in, signed char& __c) | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:761:5: note: template argument deduction/substitution failed: