Borderou de evaluare (job #787867)

Eroare de compilare: main.cpp: In function 'int main()': main.cpp:12:8: error: no match for 'operator<<' (operand types are 'std::ifstream' {aka 'std::basic_ifstream<char>'} and 'int') 12 | fin<<a<<b; | ~~~^~~ | | | | | int | std::ifstream {aka std::basic_ifstream<char>} main.cpp:12:8: note: candidate: 'operator<<(int, int)' (built-in) 12 | fin<<a<<b; | ~~~^~~ main.cpp:12:8: note: no known conversion for argument 1 from 'std::ifstream' {aka 'std::basic_ifstream<char>'} to 'int' In file included from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/regex:68, from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/i686-pc-linux-gnu/bits/stdc++.h:181, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bits/regex.h:1715:5: note: candidate: 'template<class _Ch_type, class _Ch_traits, class _Bi_iter> std::basic_ostream<_CharT, _Traits>& std::__cxx11::operator<<(std::basic_ostream<_CharT, _Traits>&, const sub_match<_Bi_iter>&)' 1715 | operator<<(basic_ostream<_Ch_type, _Ch_traits>& __os, | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bits/regex.h:1715:5: note: template argument deduction/substitution failed: main.cpp:12:10: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_ostream<_CharT, _Traits>' 12 | fin<<a<<b; | ^ In file included from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/string:54, from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bitset:52, from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/i686-pc-linux-gnu/bits/stdc++.h:52: /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bits/basic_string.h:4032:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const __cxx11::basic_string<_CharT, _Traits, _Alloc>&)' 4032 | operator<<(basic_ostream<_CharT, _Traits>& __os, | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bits/basic_string.h:4032:5: note: template argument deduction/substitution failed: main.cpp:12:10: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_ostream<_CharT, _Traits>' 12 | fin<<a<<b; | ^ /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bitset:1683:5: note: candidate: 'template<class _CharT, class _Traits, unsigned int _Nb> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const bitset<_Nb>&)' 1683 | operator<<(std::basic_ostream<_CharT, _Traits>& __os, | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bitset:1683:5: note: template argument deduction/substitution failed: main.cpp:12:10: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_ostream<_CharT, _Traits>' 12 | fin<<a<<b; | ^ In file included from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bits/ios_base.h:46, from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/streambuf:43, from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/bits/streambuf_iterator.h:35, from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/iterator:66, from /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/i686-pc-linux-gnu/bits/stdc++.h:54: /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/system_error:339:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const error_code&)' 339 | operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e) | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/system_error:339:5: note: template argument deduction/substitution failed: main.cpp:12:10: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_ostream<_CharT, _Traits>' 12 | fin<<a<<b; | ^