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View Compilation Error

0_0_38623357_30587.cpp: In function 'int main()':
0_0_38623357_30587.cpp:34:14: error: no match for 'operator!=' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'int')
  while(cin>>n!= EOF){
              ^
0_0_38623357_30587.cpp:34:14: note: candidate: 'operator!=(int, int)' <built-in>
0_0_38623357_30587.cpp:34:14: note:   no known conversion for argument 1 from 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} to 'int'
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iosfwd:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/postypes.h:221:5: note: candidate: 'template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&)'
     operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
     ^~~~~~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/postypes.h:221:5: note:   template argument deduction/substitution failed:
In file included from gcc-8.5.0/x86_64-w64-mingw32/include/locale.h:12,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/clocale:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/x86_64-w64-mingw32/bits/c++locale.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/localefwd.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
0_0_38623357_30587.cpp:34:17: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::fpos<_StateT>'
  while(cin>>n!= EOF){
                 ^~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_algobase.h:64,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/char_traits.h:39,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_pair.h:461:5: note: candidate: 'template<class _T1, class _T2> 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)
     ^~~~~~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_pair.h:461:5: note:   template argument deduction/substitution failed:
In file included from gcc-8.5.0/x86_64-w64-mingw32/include/locale.h:12,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/clocale:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/x86_64-w64-mingw32/bits/c++locale.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/localefwd.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
0_0_38623357_30587.cpp:34:17: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::pair<_T1, _T2>'
  while(cin>>n!= EOF){
                 ^~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_algobase.h:67,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/char_traits.h:39,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_iterator.h:314:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
     operator!=(const reverse_iterator<_Iterator>& __x,
     ^~~~~~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_iterator.h:314:5: note:   template argument deduction/substitution failed:
In file included from gcc-8.5.0/x86_64-w64-mingw32/include/locale.h:12,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/clocale:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/x86_64-w64-mingw32/bits/c++locale.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/localefwd.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
0_0_38623357_30587.cpp:34:17: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
  while(cin>>n!= EOF){
                 ^~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_algobase.h:67,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/char_traits.h:39,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_iterator.h:352:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
     operator!=(const reverse_iterator<_IteratorL>& __x,
     ^~~~~~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_iterator.h:352:5: note:   template argument deduction/substitution failed:
In file included from gcc-8.5.0/x86_64-w64-mingw32/include/locale.h:12,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/clocale:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/x86_64-w64-mingw32/bits/c++locale.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/localefwd.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
0_0_38623357_30587.cpp:34:17: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
  while(cin>>n!= EOF){
                 ^~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_algobase.h:67,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/char_traits.h:39,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38623357_30587.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_iterator.h:1127:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
     operator!=(const move_iterator<_IteratorL>& __x,
     ^~~~~~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stl_iterator.h:1127:5: note:   template argument deduction/substitution failed:
In file included from gcc-8.5.0/x86_64-w64-mingw32/include/locale.h:12,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/clocale:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w6


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