Compilare: main.cpp: In function 'int main()': main.cpp:38:14: warning: array subscript has type 'char' [-Wchar-subscripts] 38 | chei[test] = j; | ^~~~ main.cpp:40:14: warning: array subscript has type 'char' [-Wchar-subscripts] 40 | chei[test] = j; | ^~~~ main.cpp:42:14: warning: array subscript has type 'char' [-Wchar-subscripts] 42 | chei[test] = j; | ^~~~ main.cpp:49:51: warning: array subscript has type 'char' [-Wchar-subscripts] 49 | hasha = add(hasha + putmic * chei[a[i]], MOD); | ^ main.cpp:50:51: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | hashb = add(hashb + putmic * chei[b[i]], MOD); | ^ main.cpp:53:47: warning: array subscript has type 'char' [-Wchar-subscripts] 53 | hasha = add(hasha + putmic * chei[a[0]],MOD); | ^ main.cpp:54:47: warning: array subscript has type 'char' [-Wchar-subscripts] 54 | hashb = add(hashb + putmic * chei[b[0]],MOD); | ^ main.cpp:60:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for (i = lung; i < b.length(); i++) | ~~^~~~~~~~~~~~ main.cpp:64:55: warning: array subscript has type 'char' [-Wchar-subscripts] 64 | hashbnou = ((MOD + hashbnou - (chei[b[j-1]] * putmic) % MOD) % MOD * nrlitalfabet + chei[b[i]]) % MOD; | ^ main.cpp:64:106: warning: array subscript has type 'char' [-Wchar-subscripts] 64 | hashbnou = ((MOD + hashbnou - (chei[b[j-1]] * putmic) % MOD) % MOD * nrlitalfabet + chei[b[i]]) % MOD; | ^