Borderou de evaluare (job #402139)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:8:18: error: ‘grad2’ was not declared in this scope user.cpp:8:24: error: ‘grad3’ was not declared in this scope user.cpp:8:30: error: ‘barbati’ was not declared in this scope user.cpp:8:38: error: ‘femei’ was not declared in this scope user.cpp:8:44: error: ‘copii’ was not declared in this scope user.cpp:13:15: error: ‘a2’ was not declared in this scope user.cpp:13:18: error: ‘a3’ was not declared in this scope user.cpp:14:18: error: lvalue required as left operand of assignment user.cpp:16:23: error: lvalue required as left operand of assignment user.cpp:18:23: error: lvalue required as left operand of assignment