Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:15:12: error: ‘o’ was not declared in this scope f>>o>>x; ^ user.cpp:17:13: error: ‘it’ was not declared in this scope for(it=v[h].begin();it!=v[h].end();it++) ^ user.cpp:22:16: error: ‘it’ was not declared in this scope if(it==v[h].end()) ^ user.cpp:28:20: error: ‘it’ was not declared in this scope if(it!=v[h].end()) ^ user.cpp:36:16: error: ‘it’ was not declared in this scope if(it==v[h].end()) ^