Compilare: user.cpp: In function ‘int main()’: user.cpp:11:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<strlen(c) && v[c[i]]!=2) ^ user.cpp:11:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(i<strlen(c) && v[c[i]]!=2) ^ user.cpp:13:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[c[i]]++; ^ user.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<strlen(c) && v[c[i]]==2) ^ user.cpp:16:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i<strlen(c) && v[c[i]]==2) ^