Compilare: main.cpp: In function 'long long int divide2(long long int, int, char)': main.cpp:52:18: warning: array subscript has type 'char' [-Wchar-subscripts] 52 | return f[poz][ch]; | ^~ main.cpp:54:21: warning: array subscript has type 'char' [-Wchar-subscripts] 54 | return f[poz][inv(ch)]; | ~~~^~~~ main.cpp:67:41: warning: array subscript has type 'char' [-Wchar-subscripts] 67 | long long aux = (x / (2 * n)) * (f[n][ch] + f[n][inv(ch)]); | ^~ main.cpp:67:55: warning: array subscript has type 'char' [-Wchar-subscripts] 67 | long long aux = (x / (2 * n)) * (f[n][ch] + f[n][inv(ch)]); | ~~~^~~~ main.cpp:70:47: warning: array subscript has type 'char' [-Wchar-subscripts] 70 | long long aux = ((2 * x) / (2 * n)) * (f[n][ch] + f[n][inv(ch)]); | ^~ main.cpp:70:61: warning: array subscript has type 'char' [-Wchar-subscripts] 70 | long long aux = ((2 * x) / (2 * n)) * (f[n][ch] + f[n][inv(ch)]); | ~~~^~~~ main.cpp:73:47: warning: array subscript has type 'char' [-Wchar-subscripts] 73 | long long aux = ((3 * x) / (2 * n)) * (f[n][ch] + f[n][inv(ch)]); | ^~ main.cpp:73:61: warning: array subscript has type 'char' [-Wchar-subscripts] 73 | long long aux = ((3 * x) / (2 * n)) * (f[n][ch] + f[n][inv(ch)]); | ~~~^~~~ main.cpp: In function 'int main()': main.cpp:83:12: warning: array subscript has type 'char' [-Wchar-subscripts] 83 | f[i][s[i]]++; | ^