Compilare: main.cpp: In function 'int numara(int, long long int, char)': main.cpp:80:22: warning: array subscript has type 'char' [-Wchar-subscripts] return fr[ans][poz]; ^ main.cpp: In function 'int main()': main.cpp:114:14: warning: array subscript has type 'char' [-Wchar-subscripts] fr[ch][i]++; ^ main.cpp:117:19: warning: array subscript has type 'char' [-Wchar-subscripts] fr[aux][i] += fr[aux][i - 1]; ^ main.cpp:117:33: warning: array subscript has type 'char' [-Wchar-subscripts] fr[aux][i] += fr[aux][i - 1]; ^ main.cpp:121:19: warning: array subscript has type 'char' [-Wchar-subscripts] fr[aux][i] += fr[aux][i - 1]; ^ main.cpp:121:33: warning: array subscript has type 'char' [-Wchar-subscripts] fr[aux][i] += fr[aux][i - 1]; ^