Compilare: main.cpp: In function 'int main()': main.cpp:18:11: warning: array subscript has type 'char' [-Wchar-subscripts] 18 | f[c1] = f[c2] = f[c3] = 0; | ^~ main.cpp:18:19: warning: array subscript has type 'char' [-Wchar-subscripts] 18 | f[c1] = f[c2] = f[c3] = 0; | ^~ main.cpp:18:27: warning: array subscript has type 'char' [-Wchar-subscripts] 18 | f[c1] = f[c2] = f[c3] = 0; | ^~ main.cpp:23:25: warning: array subscript has type 'char' [-Wchar-subscripts] 23 | cin >> c, f[c]++; | ^ main.cpp:31:20: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | else if (f[c1] % 2 == f[c2] % 2 && f[c1] % 2 == f[c3] % 2) | ^~ main.cpp:31:33: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | else if (f[c1] % 2 == f[c2] % 2 && f[c1] % 2 == f[c3] % 2) | ^~ main.cpp:31:46: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | else if (f[c1] % 2 == f[c2] % 2 && f[c1] % 2 == f[c3] % 2) | ^~ main.cpp:31:59: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | else if (f[c1] % 2 == f[c2] % 2 && f[c1] % 2 == f[c3] % 2) | ^~ main.cpp:25:17: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized] 25 | if (b != c) | ^~