Compilare: main.cpp: In function 'int main()': main.cpp:45:16: warning: array subscript has type 'char' [-Wchar-subscripts] 45 | _1[s[i]] += 1; | ^ main.cpp:49:23: warning: array subscript has type 'char' [-Wchar-subscripts] 49 | _1[s[s.size() - 1]]++; | ^ main.cpp:50:23: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | _1[s[s.size() - 2]]++; | ^ main.cpp:65:24: warning: array subscript has type 'char' [-Wchar-subscripts] 65 | if (_1[t[0]] > mx) | ^ main.cpp:66:29: warning: array subscript has type 'char' [-Wchar-subscripts] 66 | mx = _1[t[0]]; | ^