Compilare: user.cpp:20:35: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] char cuvant[MAX_LETTERS] = { NULL }; ^ user.cpp:21:36: warning: converting to non-pointer type ‘LLU {aka long long unsigned int}’ from NULL [-Wconversion-null] LLU posPowrs[MAX_LETTERS] = { NULL }; ^ user.cpp:30:15: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] char litera = NULL; ^ user.cpp:35:17: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] char partiala = NULL; ^ user.cpp:36:16: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] char inversa = NULL; ^ user.cpp: In function ‘void CalcCuv()’: user.cpp:88:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] crtRefs[cuvant[i]]++; ^ user.cpp:89:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] sumaCuvant[i] = crtRefs[cuvant[i]]; ^ user.cpp:91:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] crtRev[Reversed(cuvant[i])]++; ^ user.cpp:92:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] sumaRev[i] = crtRev[Reversed(cuvant[i])]; ^ user.cpp: In function ‘void CreateRefs()’: user.cpp:100:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] refsCount[1][cuvant[i]]++; ^ user.cpp:113:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] refsCount[i][j] += refsCount[i-1][Reversed(j)] * 2; ^ user.cpp: In function ‘void Add(LLU, LLU, bool, int)’: user.cpp:121:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(margin > k) ^ user.cpp:139:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum+=refsCount[pw][partiala]; ^ user.cpp:140:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] sumC+=refsCount[pw][inversa]; ^ user.cpp:144:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum+=refsCount[pw][inversa]; ^ user.cpp:145:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] sumC+=refsCount[pw][partiala];