Compilare: main.cpp: In function 'void precalculare()': main.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < s.size(); ++i) ~~^~~~~~~~~~ main.cpp:46:21: warning: array subscript has type 'char' [-Wchar-subscripts] ++fv[0][s[i]]; ^ main.cpp: In function 'void divide2(char)': main.cpp:67:29: warning: array subscript has type 'char' [-Wchar-subscripts] litere += fv[p2][lit], n = n - k2, ++inv; ^ main.cpp:69:29: warning: array subscript has type 'char' [-Wchar-subscripts] litere += fv[p2][lit] + fv[p2][schimba(lit)], n = n - 2 * k2, ++inv; ^ main.cpp:71:29: warning: array subscript has type 'char' [-Wchar-subscripts] litere += fv[p2][lit] + 2 * fv[p2][schimba(lit)], n = n - 3 * k2; ^ main.cpp: In function 'void precalculare()': main.cpp:49:65: warning: iteration 1 invokes undefined behavior [-Waggressive-loop-optimizations] fv[p][lit] = fv[p - 1][lit] * 2 + fv[p - 1][lit + 32] * 2; ~~~~~~~~~~~~~~~~~~^ main.cpp:48:33: note: within this loop for (int lit = 'a'; lit <= 'z'; ++lit) { ~~~~^~~~~~