Compilare: main.cpp: In function 'void AdaugaInTrie(NodTrie*, const std::string&, int)': main.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 36 | if(s.size() == poz) { | ~~~~~~~~~^~~~~~ main.cpp:41:25: warning: array subscript has type 'char' [-Wchar-subscripts] 41 | if(NULL == nod->fii[lit]) { | ^~~ main.cpp:42:18: warning: array subscript has type 'char' [-Wchar-subscripts] 42 | nod->fii[lit] = NodNou(); | ^~~ main.cpp:45:27: warning: array subscript has type 'char' [-Wchar-subscripts] 45 | AdaugaInTrie(nod->fii[lit], s, 1 + poz); | ^~~ main.cpp: In function 'bool StergeInTrie(NodTrie*, const std::string&, int)': main.cpp:49:17: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 49 | if(s.size() == poz) { | ~~~~~~~~~^~~~~~ main.cpp:54:25: warning: array subscript has type 'char' [-Wchar-subscripts] 54 | if(NULL == nod->fii[lit]) return false; | ^~~ main.cpp:56:30: warning: array subscript has type 'char' [-Wchar-subscripts] 56 | if(StergeInTrie(nod->fii[lit], s, 1 + poz)) { | ^~~ main.cpp:57:28: warning: array subscript has type 'char' [-Wchar-subscripts] 57 | StergeNod(nod->fii[lit]); | ^~~ main.cpp:58:18: warning: array subscript has type 'char' [-Wchar-subscripts] 58 | nod->fii[lit] = NULL; | ^~~ main.cpp: In function 'int CautaFrecventa(NodTrie*, const std::string&, int)': main.cpp:67:17: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 67 | if(s.size() == poz) return nod->nrCuv; | ~~~~~~~~~^~~~~~ main.cpp:69:25: warning: array subscript has type 'char' [-Wchar-subscripts] 69 | if(NULL == nod->fii[lit]) return 0; | ^~~ main.cpp:70:36: warning: array subscript has type 'char' [-Wchar-subscripts] 70 | return CautaFrecventa(nod->fii[lit], s, 1 + poz); | ^~~ main.cpp: In function 'int CautaPrefMax(NodTrie*, const std::string&, int)': main.cpp:74:17: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 74 | if(s.size() == poz) return poz; | ~~~~~~~~~^~~~~~ main.cpp:76:25: warning: array subscript has type 'char' [-Wchar-subscripts] 76 | if(NULL == nod->fii[lit]) return poz; | ^~~ main.cpp:77:34: warning: array subscript has type 'char' [-Wchar-subscripts] 77 | return CautaPrefMax(nod->fii[lit], s, 1 + poz); | ^~~