Eroare de compilare: user.cpp:15:7: error: ‘coord exit’ redeclared as different kind of symbol coord exit; ^ In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/c++/4.8/ext/string_conversions.h:41, from /usr/include/c++/4.8/bits/basic_string.h:2815, from /usr/include/c++/4.8/string:52, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/stdlib.h:544:13: error: previous declaration of ‘void exit(int)’ extern void exit (int __status) __THROW __attribute__ ((__noreturn__)); ^ user.cpp: In function ‘int main()’: user.cpp:33:34: error: request for member ‘lin’ in ‘exit’, which is of non-class type ‘void(int)throw ()’ in>>gate.lin>>gate.col>>exit.lin>>exit.col; ^ user.cpp:33:44: error: request for member ‘col’ in ‘exit’, which is of non-class type ‘void(int)throw ()’ in>>gate.lin>>gate.col>>exit.lin>>exit.col; ^ user.cpp:37:34: error: request for member ‘lin’ in ‘exit’, which is of non-class type ‘void(int)throw ()’ while (prim<=ultim && v[exit.lin][exit.col]==0){ ^ user.cpp:37:44: error: request for member ‘col’ in ‘exit’, which is of non-class type ‘void(int)throw ()’ while (prim<=ultim && v[exit.lin][exit.col]==0){ ^ user.cpp:52:16: error: request for member ‘lin’ in ‘exit’, which is of non-class type ‘void(int)throw ()’ ou<<v[exit.lin][exit.col]<<"\n"; ^ user.cpp:52:26: error: request for member ‘col’ in ‘exit’, which is of non-class type ‘void(int)throw ()’ ou<<v[exit.lin][exit.col]<<"\n"; ^ user.cpp:24:15: warning: unused variable ‘j’ [-Wunused-variable] int a,b,i,j; ^