Compilare: main.cpp: In function 'int expresie()': main.cpp:16:13: warning: array subscript has type 'char' [-Wchar-subscripts] 16 | while(s[i]=='+' || s[i]=='-') | ^ main.cpp:16:26: warning: array subscript has type 'char' [-Wchar-subscripts] 16 | while(s[i]=='+' || s[i]=='-') | ^ main.cpp: In function 'int termen()': main.cpp:28:13: warning: array subscript has type 'char' [-Wchar-subscripts] 28 | while(s[i]=='*' || s[i]=='/') | ^ main.cpp:28:26: warning: array subscript has type 'char' [-Wchar-subscripts] 28 | while(s[i]=='*' || s[i]=='/') | ^ main.cpp:30:15: warning: array subscript has type 'char' [-Wchar-subscripts] 30 | if(s[i]=='*') | ^ main.cpp: In function 'int factor()': main.cpp:47:10: warning: array subscript has type 'char' [-Wchar-subscripts] 47 | if(s[i]=='(') | ^ main.cpp:56:17: warning: array subscript has type 'char' [-Wchar-subscripts] 56 | while(s[i]>='0' && s[i]<='9') | ^ main.cpp:56:30: warning: array subscript has type 'char' [-Wchar-subscripts] 56 | while(s[i]>='0' && s[i]<='9') | ^ main.cpp:58:23: warning: array subscript has type 'char' [-Wchar-subscripts] 58 | r=r*10+(s[i]-'0'); | ^