Eroare de compilare: user.cpp:9:19: error: ‘int y1’ redeclared as different kind of symbol int puncte,i,m,x1,y1,x2,y2; ^ 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 ‘str update_nod(str, str)’: user.cpp:17:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < s1.coord.size(); i ++ ){ ^ user.cpp:20:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < s2.coord.size(); i ++ ){ ^ user.cpp: In function ‘int query(int, int, int, int, int)’: user.cpp:44:21: warning: unused variable ‘mid’ [-Wunused-variable] int st, dr, mid; ^ user.cpp: In function ‘int main()’: user.cpp:80:12: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ in >> x1 >> y1 >> x2 >> y2; ^ 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:81:36: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] out<< query( 1,x1,y1,x2,y2 )<<"\n"; ^ user.cpp:39:5: error: initializing argument 3 of ‘int query(int, int, int, int, int)’ [-fpermissive] int query( int nod, int x1, int y1, int x2, int y2 ){ ^