Compilare: user.cpp: In function ‘bool num()’: user.cpp:60:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] int r = val[*cursor]; ^ user.cpp: In function ‘int main()’: user.cpp:129:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] f1[*i] = 1; ^ user.cpp:138:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] f2[*i] = 1; ^ user.cpp:94:10: warning: unused variable ‘n’ [-Wunused-variable] int t, n, m, i, k; ^ user.cpp:94:13: warning: unused variable ‘m’ [-Wunused-variable] int t, n, m, i, k; ^