Main.cc: In function ‘int main()’:
Main.cc:6:11: error: no match for ‘operator>’ (operand types are ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} and ‘int’)
cin>>a>b>c;
~~~~~~^~
Main.cc:6:11: note: candidate: ‘operator>(int, int)’
Main.cc:6:11: note: no known conversion for argument 1 from ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} to ‘int’
In file included from /usr/include/c++/8/bits/stl_algobase.h:64,
from /usr/include/c++/8/bits/char_traits.h:39,
from /usr/include/c++/8/ios:40,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/stl_pair.h:467:5: note: candidate: ‘template constexpr bool std::operator>(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)’
operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
^~~~~~~~
/usr/include/c++/8/bits/stl_pair.h:467:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} is not derived from ‘const std::pair<_T1, _T2>’
cin>>a>b>c;
^
In file included from /usr/include/c++/8/bits/stl_algobase.h:67,
from /usr/include/c++/8/bits/char_traits.h:39,
from /usr/include/c++/8/ios:40,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/stl_iterator.h:320:5: note: candidate: ‘template bool std::operator>(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)’
operator>(const reverse_iterator<_Iterator>& __x,
^~~~~~~~
/usr/include/c++/8/bits/stl_iterator.h:320:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} is not derived from ‘const std::reverse_iterator<_Iterator>’
cin>>a>b>c;
^
In file included from /usr/include/c++/8/bits/stl_algobase.h:67,
from /usr/include/c++/8/bits/char_traits.h:39,
from /usr/include/c++/8/ios:40,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/stl_iterator.h:358:5: note: candidate: ‘template bool std::operator>(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)’
operator>(const reverse_iterator<_IteratorL>& __x,
^~~~~~~~
/usr/include/c++/8/bits/stl_iterator.h:358:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} is not derived from ‘const std::reverse_iterator<_Iterator>’
cin>>a>b>c;
^
In file included from /usr/include/c++/8/bits/stl_algobase.h:67,
from /usr/include/c++/8/bits/char_traits.h:39,
from /usr/include/c++/8/ios:40,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/stl_iterator.h:1163:5: note: candidate: ‘template bool std::operator>(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)’
operator>(const move_iterator<_IteratorL>& __x,
^~~~~~~~
/usr/include/c++/8/bits/stl_iterator.h:1163:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} is not derived from ‘const std::move_iterator<_IteratorL>’
cin>>a>b>c;
^
In file included from /usr/include/c++/8/bits/stl_algobase.h:67,
from /usr/include/c++/8/bits/char_traits.h:39,
from /usr/include/c++/8/ios:40,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/stl_iterator.h:1169:5: note: candidate: ‘template bool std::operator>(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)’
operator>(const move_iterator<_Iterator>& __x,
^~~~~~~~
/usr/include/c++/8/bits/stl_iterator.h:1169:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} is not derived from ‘const std::move_iterator<_IteratorL>’
cin>>a>b>c;
^
In file included from /usr/include/c++/8/string:52,
from /usr/include/c++/8/bits/locale_classes.h:40,
from /usr/include/c++/8/bits/ios_base.h:41,
from /usr/include/c++/8/ios:42,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/basic_string.h:6171:5: note: candidate: ‘template bool std::operator>(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)’
operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^~~~~~~~
/usr/include/c++/8/bits/basic_string.h:6171:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
cin>>a>b>c;
^
In file included from /usr/include/c++/8/string:52,
from /usr/include/c++/8/bits/locale_classes.h:40,
from /usr/include/c++/8/bits/ios_base.h:41,
from /usr/include/c++/8/ios:42,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/basic_string.h:6184:5: note: candidate: ‘template bool std::operator>(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)’
operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^~~~~~~~
/usr/include/c++/8/bits/basic_string.h:6184:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: ‘std::basic_istream::__istream_type’ {aka ‘std::basic_istream’} is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
cin>>a>b>c;
^
In file included from /usr/include/c++/8/string:52,
from /usr/include/c++/8/bits/locale_classes.h:40,
from /usr/include/c++/8/bits/ios_base.h:41,
from /usr/include/c++/8/ios:42,
from /usr/include/c++/8/ostream:38,
from /usr/include/c++/8/iostream:39,
from Main.cc:1:
/usr/include/c++/8/bits/basic_string.h:6196:5: note: candidate: ‘template bool std::operator>(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)’
operator>(const _CharT* __lhs,
^~~~~~~~
/usr/include/c++/8/bits/basic_string.h:6196:5: note: template argument deduction/substitution failed:
Main.cc:6:12: note: mismatched types ‘const _CharT*’ and ‘std::basic_istream’
cin>>a>b>c;
^
Main.cc:7:32: error: lvalue required as left operand of assignment
if ((a