Compilare: user.cpp: In function ‘int main()’: user.cpp:18:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[aux[0]]=nr(); ^ user.cpp:23:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] nrvf[aux[0]]=1; ^ user.cpp:26:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(aux[i]==',') nrvf[aux[0]]++; ^ user.cpp:28:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[aux[0]]=aux.substr(i); ^ user.cpp: In function ‘int nr()’: user.cpp:37:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=2;i<aux.size();i++) numar=numar*10+aux[i]; ^