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View Compilation Error

0_0_37813423_7058.cpp: In function 'll dfs3(ll, ll)':
0_0_37813423_7058.cpp:24:26: error: no matching function for call to 'max(<unresolved overloaded function type>, ll)'
   mmax=max(max,dfs3(a1,x));
                          ^
0_0_37813423_7058.cpp:24:26: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 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_37813423_7058.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:217:5: note: const _Tp& std::max(const _Tp&, const _Tp&) [with _Tp = long long int]
     max(const _Tp& __a, const _Tp& __b)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:217:5: note:   no known conversion for argument 1 from '<unresolved overloaded function type>' to 'const long long int&'
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:261:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:261:5: note:   template argument deduction/substitution failed:
0_0_37813423_7058.cpp:24:26: note:   candidate expects 3 arguments, 2 provided
   mmax=max(max,dfs3(a1,x));
                          ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:64,
                 from 0_0_37813423_7058.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3449:5: note: template<class _Tp> _Tp std::max(std::initializer_list<_Tp>)
     max(initializer_list<_Tp> __l)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3449:5: note:   template argument deduction/substitution failed:
0_0_37813423_7058.cpp:24:26: note:   candidate expects 1 argument, 2 provided
   mmax=max(max,dfs3(a1,x));
                          ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:64,
                 from 0_0_37813423_7058.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3454:5: note: template<class _Tp, class _Compare> _Tp std::max(std::initializer_list<_Tp>, _Compare)
     max(initializer_list<_Tp> __l, _Compare __comp)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3454:5: note:   template argument deduction/substitution failed:
0_0_37813423_7058.cpp:24:26: note:   couldn't deduce template parameter '_Tp'
   mmax=max(max,dfs3(a1,x));
                          ^


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