Eroare de compilare: main.cpp:6:2: warning: #warning Trebuie sa bagi fstream [-Wcpp] #warning Trebuie sa bagi fstream ^~~~~~~ main.cpp: In function 'int main()': main.cpp:12:2: error: 'cin' was not declared in this scope cin >> n; ^~~ main.cpp:33:2: error: 'cout' was not declared in this scope cout << cnt <<'\n'; ^~~~ main.cpp:37:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<list[i].size(); j++) { ~^~~~~~~~~~~~~~~ Non zero exit status: 1