Eroare de compilare: user.cpp:6:28: error: ‘double y1 [105]’ redeclared as different kind of symbol double x,y,k,x1[105],y1[105],x2[105],y2[105],x3[105],y3[105]; ^ In file included from /usr/include/features.h:357:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/os_defines.h:39, from /usr/include/i386-linux-gnu/c++/4.8/bits/c++config.h:420, from /usr/include/c++/4.8/iosfwd:38, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:243:1: error: previous declaration of ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:38:22: warning: pointer to a function used in arithmetic [-Wpointer-arith] {fin>>x1[i]>>y1[i]>>x2[i]>>y2[i]>>x3[i]>>y3[i]; ^ user.cpp:38:9: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ {fin>>x1[i]>>y1[i]>>x2[i]>>y2[i]>>x3[i]>>y3[i]; ^ In file included from /usr/include/c++/4.8/fstream:38:0, from user.cpp:1: /usr/include/c++/4.8/istream:872:5: error: initializing argument 1 of ‘std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = double(double)throw ()]’ operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x) ^ user.cpp:45:26: warning: pointer to a function used in arithmetic [-Wpointer-arith] A=y2[i]-y1[i]; ^ user.cpp:45:26: error: invalid operands of types ‘double’ and ‘double(double)throw ()’ to binary ‘operator-’ user.cpp:47:26: warning: pointer to a function used in arithmetic [-Wpointer-arith] C=x2[i]*y1[i]-x1[i]*y2[i]; ^ user.cpp:47:26: error: invalid operands of types ‘double’ and ‘double(double)throw ()’ to binary ‘operator*’ user.cpp:48:27: warning: pointer to a function used in arithmetic [-Wpointer-arith] if(A!=0&&y1[j]>=min(y1[i],y2[i])&&y1[j]<=max(y1[i],y2[i])){ ^ user.cpp:48:38: warning: pointer to a function used in arithmetic [-Wpointer-arith] if(A!=0&&y1[j]>=min(y1[i],y2[i])&&y1[j]<=max(y1[i],y2[i])){ ^ user.cpp:48:45: error: no matching function for call to ‘min(double (&)(double)throw (), double&)’ if(A!=0&&y1[j]>=min(y1[i],y2[i])&&y1[j]<=max(y1[i],y2[i])){ ^ user.cpp:48:45: note: candidates are: In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_algobase.h:193:5: note: template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)