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View Compilation Error

0_0_29321814_6652.cpp: In function 'int main()':
0_0_29321814_6652.cpp:22:21: error: invalid user-defined conversion from 'std::basic_ostream<char>' to 'int' [-fpermissive]
         return cout << "0\n";
                     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:44:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_29321814_6652.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_ios.h:115:7: note: candidate is: std::basic_ios<_CharT, _Traits>::operator void*() const [with _CharT = char; _Traits = std::char_traits<char>] <near match>
       operator void*() const
       ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_ios.h:115:7: note:   no known conversion from 'void*' to 'int'


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