Compilare: main.cpp: In function 'll evaluare()': main.cpp:15:22: warning: array subscript has type 'char' [-Wchar-subscripts] 15 | while (s[sir[pos]]==1){ | ^ main.cpp: In function 'll termen()': main.cpp:25:22: warning: array subscript has type 'char' [-Wchar-subscripts] 25 | while (s[sir[pos]]==2){ | ^ main.cpp: In function 'll factor()': main.cpp:40:27: warning: array subscript has type 'char' [-Wchar-subscripts] 40 | else while (s[sir[pos]]==3){ | ^