Compilare: user.cpp: In function ‘int parantezare(char*, int)’: user.cpp:24:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[st[k]]--; ^ user.cpp:30:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[s[i]]++; ^ user.cpp:34:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[s[i]]++; ^ user.cpp:41:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[s[i]]++; ^ user.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type] } ^