Eroare de compilare: user.cpp:14:5: error: ‘int y1’ redeclared as different kind of symbol int y1; ^ 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/iostream: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 ‘bool rez(int)’: user.cpp:29:17: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(y2 > y1) ^ user.cpp:30:26: error: invalid initialization of non-const reference of type ‘int&’ from an rvalue of type ‘double (*)(double)throw ()’ schimba(y1,y2); ^ user.cpp:16:6: error: in passing argument 1 of ‘void schimba(int&, int&)’ void schimba(int &a, int &b){ ^ user.cpp:33:37: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] for(int j = start; j <= y1; j ++){ ^ user.cpp:40:16: error: ISO C++ forbids decrementing a pointer of type ‘double (*)(double)throw ()’ [-fpermissive] y1 --; ^ user.cpp:40:16: error: lvalue required as decrement operand user.cpp:43:17: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] if(y2 > y1) ^ user.cpp:44:26: error: invalid initialization of non-const reference of type ‘int&’ from an rvalue of type ‘double (*)(double)throw ()’ schimba(y1,y2); ^ user.cpp:16:6: error: in passing argument 1 of ‘void schimba(int&, int&)’ void schimba(int &a, int &b){ ^ user.cpp:47:25: error: invalid conversion from ‘double (*)(double)throw ()’ to ‘int’ [-fpermissive] for(int j = y1; j <= finish+y1; j++){ ^ user.cpp:47:41: warning: pointer to a function used in arithmetic [-Wpointer-arith] for(int j = y1; j <= finish+y1; j++){ ^ user.cpp:47:41: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] user.cpp: In function ‘int main()’: user.cpp:74:11: 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>>p; ^ In file included from /usr/include/c++/4.8/iostream:40:0, from user.cpp:1: