Eroare de compilare: user.cpp:11:39: error: ‘int y1’ redeclared as different kind of symbol int nr, poz1, poz2, x12, y12, x1, x2, y1, y2, d; ^ In file included from /usr/include/features.h:346:0, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/os_defines.h:39, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/c++config.h:420, from /usr/local/include/c++/4.8.0/iosfwd:38, from /usr/local/include/c++/4.8.0/ios:38, from /usr/local/include/c++/4.8.0/istream:38, from /usr/local/include/c++/4.8.0/fstream:38, from user.cpp:1: /usr/include/bits/mathcalls.h:242:1: error: previous declaration of ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘int main()’: user.cpp:91:13: error: cannot bind ‘std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}’ lvalue to ‘std::basic_istream<char>&&’ fin >> x1 >> y1 >> x2 >> y2; ^ In file included from /usr/local/include/c++/4.8.0/fstream:38:0, from user.cpp:1: /usr/local/include/c++/4.8.0/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:92:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (y1 > y2) ^ user.cpp:97:17: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] y12 = y1; ^ user.cpp:98:16: error: assignment of function ‘double y1(double)’ y1 = y2; ^ user.cpp:98:16: error: cannot convert ‘int’ to ‘double(double)throw ()’ in assignment user.cpp:102:18: error: invalid operands of types ‘int’ and ‘double(double)throw ()’ to binary ‘operator-’ d = y2 - y1 + 1; ^ user.cpp:104:27: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] poz1 = cautbin1(y1); ^ user.cpp:30:5: error: initializing argument 1 of ‘int cautbin1(int)’ [-fpermissive] int cautbin1(int x) ^ user.cpp:107:41: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] if (poz1 == poz2 && (cautbin2(y1) == cautbin2(y2))) ^ user.cpp:44:5: error: initializing argument 1 of ‘int cautbin2(int)’ [-fpermissive] int cautbin2(int x) ^ user.cpp:114:26: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if (y1 < v[poz1].nr && x1 == v[poz1].poz)