Compilare: main.cpp: In function 'void eval(int)': main.cpp:18:25: warning: array subscript has type 'char' [-Wchar-subscripts] sol[*p]-=semn; ^ main.cpp:19:24: warning: array subscript has type 'char' [-Wchar-subscripts] else sol[*p]+=semn; ^ main.cpp:20:19: warning: array subscript has type 'char' [-Wchar-subscripts] viz[*p]=1; ^ main.cpp:26:23: warning: array subscript has type 'char' [-Wchar-subscripts] sol[*p]+=semn,viz[*p]=1,p+=2; ^ main.cpp:26:37: warning: array subscript has type 'char' [-Wchar-subscripts] sol[*p]+=semn,viz[*p]=1,p+=2; ^ main.cpp:28:23: warning: array subscript has type 'char' [-Wchar-subscripts] sol[*p]-=semn,viz[*p]=1,p+=2; ^ main.cpp:28:37: warning: array subscript has type 'char' [-Wchar-subscripts] sol[*p]-=semn,viz[*p]=1,p+=2; ^ main.cpp:35:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(*p=='(') ^