Compilare: main.cpp: In function 'int main()': main.cpp:16:15: warning: right operand of comma operator has no effect [-Wunused-value] vf=0,k; ^ main.cpp:32:24: warning: array subscript has type 'char' [-Wchar-subscripts] if(s[sir[i]]==')') ^ main.cpp:34:29: warning: array subscript has type 'char' [-Wchar-subscripts] else if(s[sir[i]]=='('&&vf>0&&st[vf]==1) ^ main.cpp:36:29: warning: array subscript has type 'char' [-Wchar-subscripts] else if(s[sir[i]]=='[') ^ main.cpp:38:29: warning: array subscript has type 'char' [-Wchar-subscripts] else if(s[sir[i]]==']'&&vf>0&&st[vf]==2) ^