Compilare: main.cpp: In function 'int main()': main.cpp:25:14: warning: array subscript has type 'char' [-Wchar-subscripts] 25 | chei[test] = j; | ^~~~ main.cpp:27:14: warning: array subscript has type 'char' [-Wchar-subscripts] 27 | chei[test] = j; | ^~~~ main.cpp:29:14: warning: array subscript has type 'char' [-Wchar-subscripts] 29 | chei[test] = j; | ^~~~ main.cpp:36:48: warning: array subscript has type 'char' [-Wchar-subscripts] 36 | hasha = (hasha + putmic * chei[a[i]])%prim; | ^ main.cpp:37:48: warning: array subscript has type 'char' [-Wchar-subscripts] 37 | hashb = (hashb + putmic * chei[b[i]])%prim; | ^ main.cpp:40:44: warning: array subscript has type 'char' [-Wchar-subscripts] 40 | hasha = (hasha + putmic * chei[a[0]])%prim; | ^ main.cpp:41:44: warning: array subscript has type 'char' [-Wchar-subscripts] 41 | hashb = (hashb + putmic * chei[b[0]])%prim; | ^ main.cpp:47:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (i = lung; i < b.length(); i++) | ~~^~~~~~~~~~~~ main.cpp:50:55: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | hashbnou = ((prim + hashbnou - chei[b[j-1]] * putmic % prim) *nrlitalfabet + chei[b[i]])%prim; | ^ main.cpp:50:99: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | hashbnou = ((prim + hashbnou - chei[b[j-1]] * putmic % prim) *nrlitalfabet + chei[b[i]])%prim; | ^