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View Compilation Error

0_0_33054271_32536.cpp: In function 'int find2(int)':
0_0_33054271_32536.cpp:8:20: error: no matching function for call to 'find(int&)'
  int t = find(fa[x]);
                    ^
0_0_33054271_32536.cpp:8:20: note: candidate is:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_facets.h:48:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_ios.h:37,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:44,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_33054271_32536.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/streambuf_iterator.h:369:5: note: template<class _CharT2> typename __gnu_cxx::__enable_if<std::__is_char<_CharT2>::__value, std::istreambuf_iterator<_CharT> >::__type std::find(std::istreambuf_iterator<_CharT>, std::istreambuf_iterator<_CharT>, const _CharT2&)
     find(istreambuf_iterator<_CharT> __first,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/streambuf_iterator.h:369:5: note:   template argument deduction/substitution failed:
0_0_33054271_32536.cpp:8:20: note:   mismatched types 'std::istreambuf_iterator<_CharT>' and 'int'
  int t = find(fa[x]);
                    ^
0_0_33054271_32536.cpp: In function 'int find(int)':
0_0_33054271_32536.cpp:17:12: error: 'f' was not declared in this scope
     return f[x];
            ^


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