Compilare: user.cpp: In function ‘int main()’: user.cpp:55:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(viz[s[j]]) ^ user.cpp:57:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] new_cuv.egalitati[viz[s[j]]-1].push_back(j); ^ user.cpp:62:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] viz[s[j]] = current; ^ user.cpp:69:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<new_cuv.egalitati.size(); j++) ^ user.cpp:98:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j < alice[m].size(); j++) ^ user.cpp:102:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k = 0; k < alice[m][j].egalitati.size(); k++) ^ user.cpp:105:62: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(l = 1; l < alice[m][j].egalitati[k].size(); l++) ^