Compilare: user.cpp: In function ‘bool cond(std::string, std::string)’: user.cpp:34:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prio[s1[i]]>prio[s2[i]]) return 0; ^ user.cpp:34:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prio[s1[i]]>prio[s2[i]]) return 0; ^ user.cpp:29:11: warning: unused variable ‘m’ [-Wunused-variable] int i,m,n,j; ^ user.cpp:29:15: warning: unused variable ‘j’ [-Wunused-variable] int i,m,n,j; ^ user.cpp: In function ‘void cerinta_2()’: user.cpp:45:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] prio[s[i]]=i; ^