Compilare: main.cpp: In function 'void precalculare()': main.cpp:47:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < s.size(); ++i) ~~^~~~~~~~~~ main.cpp:48:21: warning: array subscript has type 'char' [-Wchar-subscripts] ++fv[0][s[i]]; ^ main.cpp: In function 'void divide2(char)': main.cpp:69:29: warning: array subscript has type 'char' [-Wchar-subscripts] litere += fv[p2][lit], n = n - k2, ++inv; ^ main.cpp:71:29: warning: array subscript has type 'char' [-Wchar-subscripts] litere += fv[p2][lit] + fv[p2][schimba(lit)], n = n - 2 * k2, ++inv; ^ main.cpp:73:29: warning: array subscript has type 'char' [-Wchar-subscripts] litere += fv[p2][lit] + 2 * fv[p2][schimba(lit)], n = n - 3 * k2; ^