Eroare de compilare: main.cpp:5:13: error: 'int y1' redeclared as different kind of symbol int x1, x2, y1, y2; ^~ In file included from /usr/include/features.h:367:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:507, from /usr/include/c++/6/cassert:43, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:33, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/mathcalls.h:251:1: note: previous declaration 'double y1(double)' __MATHCALL (y1,, (_Mdouble_)); ^ main.cpp: In function 'void dfs(int, int)': main.cpp:34:20: error: no matching function for call to 'min(double (&)(double) throw (), int&)' y1 = min (y1, y); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:195:5: note: candidate: template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&) min(const _Tp& __a, const _Tp& __b) ^~~ /usr/include/c++/6/bits/stl_algobase.h:195:5: note: template argument deduction/substitution failed: main.cpp:34:20: note: deduced conflicting types for parameter 'const _Tp' ('double(double) throw ()' and 'int') y1 = min (y1, y); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:243:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare) min(const _Tp& __a, const _Tp& __b, _Compare __comp) ^~~ /usr/include/c++/6/bits/stl_algobase.h:243:5: note: template argument deduction/substitution failed: main.cpp:34:20: note: deduced conflicting types for parameter 'const _Tp' ('double(double) throw ()' and 'int') y1 = min (y1, y); ^ In file included from /usr/include/c++/6/algorithm:62:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:65, from main.cpp:1: /usr/include/c++/6/bits/stl_algo.h:3447:5: note: candidate: template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>) Non zero exit status: 1