Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:11: error: ‘N’ was not declared in this scope user.cpp:11: error: ‘M’ was not declared in this scope user.cpp:11: error: ‘A’ was not declared in this scope user.cpp:11: error: ‘B’ was not declared in this scope user.cpp:14: error: ‘i’ was not declared in this scope user.cpp:16: error: ‘x’ was not declared in this scope user.cpp:16: error: ‘y’ was not declared in this scope user.cpp:23: error: statement cannot resolve address of overloaded function user.cpp:25: error: expected ‘;’ before ‘while’ user.cpp:27: error: expected primary-expression before ‘)’ token