Compilare: user.cpp: In function ‘int spectacole(int)’: user.cpp:102:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < cercuri[index].size(); ++i) ^ user.cpp: In function ‘void write()’: user.cpp:140:32: warning: ‘cnt’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << maxim << " " << cnt; ^