Eroare de compilare: user.cpp: In function ‘std::string INIT(std::string)’: user.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<s.size();i++) ^ user.cpp:18:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] apare[s[i]] = 0; ^ user.cpp: In function ‘std::string TRANSF(std::string)’: user.cpp:32:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.size();i++){ ^ user.cpp:36:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] ct[lit] += semn*semnnum*numar; ^ user.cpp:41:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] ct[lit] += semn*semnnum*numar; ^ user.cpp:46:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] ct[lit] += semn*semnnum*numar; ^ user.cpp:52:8: warning: array subscript has type ‘char’ [-Wchar-subscripts] ct[lit] += semn*semnnum*numar; ^ user.cpp:54:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (ct[lit]!=0){ ^ user.cpp:56:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] ltoa(ct[lit],buf,10); ^ user.cpp:56:32: error: ‘ltoa’ was not declared in this scope ltoa(ct[lit],buf,10); ^ user.cpp:57:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (ct[lit] >= 0) s1 = s1 + '+' + buf; ^ user.cpp: In function ‘int main()’: user.cpp:83:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<s.size();i++){ ^ user.cpp:85:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] apare[lit] = semn*numar; ^ user.cpp:93:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] apare[lit] = semn*numar; ^ user.cpp:95:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (apare[lit]>lim) ^ user.cpp:96:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] cout << lit << ' ' << apare[lit] << endl;