Eroare de compilare: main.cpp: In function 'int main()': main.cpp:38:9: error: 'gr' was not declared in this scope gr[x].push_back(y);} ^~ main.cpp:44:25: error: 'gr' was not declared in this scope for (int i=0; i<gr[nod].size(); i++){ ^~ main.cpp:48:17: error: 'lv' was not declared in this scope lv[gr[nod][i]] = lv[nod] + 1;}}} ^~ main.cpp:51:13: error: 'lv' was not declared in this scope lv[i] = -1;} ^~ main.cpp:52:15: error: 'lv' was not declared in this scope cout<<lv[i]<<" ";} ^~ Non zero exit status: 1