Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:7:6: error: ‘n’ was not declared in this scope f >> n; ^ user.cpp:8:7: error: ‘i’ was not declared in this scope for (i = 1; i <= n;i++) ^ user.cpp:9:7: error: ‘j’ was not declared in this scope for (j = 1; j <= n; j++) ^ user.cpp:12:4: error: ‘nr’ was not declared in this scope nr++; ^ user.cpp:15:8: error: ‘nr’ was not declared in this scope }g << nr; ^